Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)
Pathological outpouching or sac-like dilatation in the wall of any blood vessel (ARTERIES or VEINS) or the heart (HEART ANEURYSM). It indicates a thin and weakened area in the wall which may later rupture. Aneurysms are classified by location, etiology, or other characteristics.
Aneurysm due to growth of microorganisms in the arterial wall, or infection arising within preexisting arteriosclerotic aneurysms.
An abnormal balloon- or sac-like dilatation in the wall of AORTA.
A localized bulging or dilatation in the muscle wall of a heart (MYOCARDIUM), usually in the LEFT VENTRICLE. Blood-filled aneurysms are dangerous because they may burst. Fibrous aneurysms interfere with the heart function through the loss of contractility. True aneurysm is bound by the vessel wall or cardiac wall. False aneurysms are HEMATOMA caused by myocardial rupture.
An abnormal balloon- or sac-like dilatation in the wall of the THORACIC AORTA. This proximal descending portion of aorta gives rise to the visceral and the parietal branches above the aortic hiatus at the diaphragm.
Aneurysm caused by a tear in the TUNICA INTIMA of a blood vessel leading to interstitial HEMORRHAGE, and splitting (dissecting) of the vessel wall, often involving the AORTA. Dissection between the intima and media causes luminal occlusion. Dissection at the media, or between the media and the outer adventitia causes aneurismal dilation.
Abnormal balloon- or sac-like dilatation in the wall of any one of the iliac arteries including the common, the internal, or the external ILIAC ARTERY.
A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.
Abnormal balloon- or sac-like dilatation in the wall of CORONARY VESSELS. Most coronary aneurysms are due to CORONARY ATHEROSCLEROSIS, and the rest are due to inflammatory diseases, such as KAWASAKI DISEASE.
Surgical insertion of BLOOD VESSEL PROSTHESES to repair injured or diseased blood vessels.
Radiography of the vascular system of the brain after injection of a contrast medium.
The tearing or bursting of the wall along any portion of the AORTA, such as thoracic or abdominal. It may result from the rupture of an aneurysm or it may be due to TRAUMA.
Not an aneurysm but a well-defined collection of blood and CONNECTIVE TISSUE outside the wall of a blood vessel or the heart. It is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. False aneurysm is formed by organized THROMBUS and HEMATOMA in surrounding tissue.
Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels.
The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries.
Bleeding into the intracranial or spinal SUBARACHNOID SPACE, most resulting from INTRACRANIAL ANEURYSM rupture. It can occur after traumatic injuries (SUBARACHNOID HEMORRHAGE, TRAUMATIC). Clinical features include HEADACHE; NAUSEA; VOMITING, nuchal rigidity, variable neurological deficits and reduced mental status.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Minimally invasive procedures, diagnostic or therapeutic, performed within the BLOOD VESSELS. They may be perfomed via ANGIOSCOPY; INTERVENTIONAL MAGNETIC RESONANCE IMAGING; INTERVENTIONAL RADIOGRAPHY; or INTERVENTIONAL ULTRASONOGRAPHY.
A method of delineating blood vessels by subtracting a tissue background image from an image of tissue plus intravascular contrast material that attenuates the X-ray photons. The background image is determined from a digitized image taken a few moments before injection of the contrast material. The resulting angiogram is a high-contrast image of the vessel. This subtraction technique allows extraction of a high-intensity signal from the superimposed background information. The image is thus the result of the differential absorption of X-rays by different tissues.
Radiographic visualization of the aorta and its branches by injection of contrast media, using percutaneous puncture or catheterization procedures.
Operative procedures for the treatment of vascular disorders.
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
Hand-held tools or implements used by health professionals for the performance of surgical tasks.
Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.
Radiography of blood vessels after injection of a contrast medium.
Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.
The plan and delineation of prostheses in general or a specific prosthesis.
Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.
Artery formed by the bifurcation of the internal carotid artery (CAROTID ARTERY, INTERNAL). Branches of the anterior cerebral artery supply the CAUDATE NUCLEUS; INTERNAL CAPSULE; PUTAMEN; SEPTAL NUCLEI; GYRUS CINGULI; and surfaces of the FRONTAL LOBE and PARIETAL LOBE.
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose.
Either of two large arteries originating from the abdominal aorta; they supply blood to the pelvis, abdominal wall and legs.
Surgery performed on the nervous system or its parts.
Postoperative hemorrhage from an endovascular AORTIC ANEURYSM repaired with endoluminal placement of stent grafts (BLOOD VESSEL PROSTHESIS IMPLANTATION). It is associated with pressurization, expansion, and eventual rupture of the aneurysm.
Inflammation of the wall of the AORTA.
Platinum. A heavy, soft, whitish metal, resembling tin, atomic number 78, atomic weight 195.09, symbol Pt. (From Dorland, 28th ed) It is used in manufacturing equipment for laboratory and industrial use. It occurs as a black powder (platinum black) and as a spongy substance (spongy platinum) and may have been known in Pliny's time as "alutiae".
Pathological conditions involving the CAROTID ARTERIES, including the common, internal, and external carotid arteries. ATHEROSCLEROSIS and TRAUMA are relatively frequent causes of carotid artery pathology.
Polyester polymers formed from terephthalic acid or its esters and ethylene glycol. They can be formed into tapes, films or pulled into fibers that are pressed into meshes or woven into fabrics.
The largest branch of the celiac trunk with distribution to the spleen, pancreas, stomach and greater omentum.
Reconstruction or repair of a blood vessel, which includes the widening of a pathological narrowing of an artery or vein by the removal of atheromatous plaque material and/or the endothelial lining as well, or by dilatation (BALLOON ANGIOPLASTY) to compress an ATHEROMA. Except for ENDARTERECTOMY, usually these procedures are performed via catheterization as minimally invasive ENDOVASCULAR PROCEDURES.
A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.
Use of a balloon CATHETER to block the flow of blood through an artery or vein.
A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters.
The dilatation of the aortic wall behind each of the cusps of the aortic valve.
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
Elements of limited time intervals, contributing to particular results or situations.
The first branch of the SUBCLAVIAN ARTERY with distribution to muscles of the NECK; VERTEBRAE; SPINAL CORD; CEREBELLUM; and interior of the CEREBRUM.
A protease of broad specificity, obtained from dried pancreas. Molecular weight is approximately 25,000. The enzyme breaks down elastin, the specific protein of elastic fibers, and digests other proteins such as fibrin, hemoglobin, and albumin. EC
The arterial blood vessels supplying the CEREBRUM.
The condition of an anatomical structure's being dilated beyond normal dimensions.
The therapy of the same disease in a patient, with the same agent or procedure repeated after initial treatment, or with an additional or alternate measure or follow-up. It does not include therapy which requires more than one administration of a therapeutic agent or regimen. Retreatment is often used with reference to a different modality when the original one was inadequate, harmful, or unsuccessful.
Artery formed by the bifurcation of the BASILAR ARTERY. Branches of the posterior cerebral artery supply portions of the OCCIPITAL LOBE; PARIETAL LOBE; inferior temporal gyrus, brainstem, and CHOROID PLEXUS.
The arterial trunk that arises from the abdominal aorta and after a short course divides into the left gastric, common hepatic and splenic arteries.
Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side.
The artery formed by the union of the right and left vertebral arteries; it runs from the lower to the upper border of the pons, where it bifurcates into the two posterior cerebral arteries.
A large vessel supplying the whole length of the small intestine except the superior part of the duodenum. It also supplies the cecum and the ascending part of the colon and about half the transverse part of the colon. It arises from the anterior surface of the aorta below the celiac artery at the level of the first lumbar vertebra.
An autosomal dominant disorder of CONNECTIVE TISSUE with abnormal features in the heart, the eye, and the skeleton. Cardiovascular manifestations include MITRAL VALVE PROLAPSE, dilation of the AORTA, and aortic dissection. Other features include lens displacement (ectopia lentis), disproportioned long limbs and enlarged DURA MATER (dural ectasia). Marfan syndrome is associated with mutations in the gene encoding fibrillin, a major element of extracellular microfibrils of connective tissue.
Malfunction of implantation shunts, valves, etc., and prosthesis loosening, migration, and breaking.
Migration of a foreign body from its original location to some other location in the body.
A polygonal anastomosis at the base of the brain formed by the internal carotid (CAROTID ARTERY, INTERNAL), proximal parts of the anterior, middle, and posterior cerebral arteries (ANTERIOR CEREBRAL ARTERY; MIDDLE CEREBRAL ARTERY; POSTERIOR CEREBRAL ARTERY), the anterior communicating artery and the posterior communicating arteries.
Any operation on the cranium or incision into the cranium. (Dorland, 28th ed)
The performance of surgical procedures with the aid of a microscope.
Methods of creating machines and devices.
An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.
Artery arising from the brachiocephalic trunk on the right side and from the arch of the aorta on the left side. It distributes to the neck, thoracic wall, spinal cord, brain, meninges, and upper limb.
Microsurgical revascularization to improve intracranial circulation. It usually involves joining the extracranial circulation to the intracranial circulation but may include extracranial revascularization (e.g., subclavian-vertebral artery bypass, subclavian-external carotid artery bypass). It is performed by joining two arteries (direct anastomosis or use of graft) or by free autologous transplantation of highly vascularized tissue to the surface of the brain.
The portion of the descending aorta proceeding from the arch of the aorta and extending to the DIAPHRAGM, eventually connecting to the ABDOMINAL AORTA.
An acute, febrile, mucocutaneous condition accompanied by swelling of cervical lymph nodes in infants and young children. The principal symptoms are fever, congestion of the ocular conjunctivae, reddening of the lips and oral cavity, protuberance of tongue papillae, and edema or erythema of the extremities.
The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988)
The continuation of the femoral artery coursing through the popliteal fossa; it divides into the anterior and posterior tibial arteries.
An abnormal passage between two or more BLOOD VESSELS, between ARTERIES; VEINS; or between an artery and a vein.
Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization.
Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.
Splitting of the vessel wall in the VERTEBRAL ARTERY. Interstitial hemorrhage into the media of the vessel wall can lead to occlusion of the vertebral artery, aneurysm formation, or THROMBOEMBOLISM. Vertebral artery dissection is often associated with TRAUMA and injuries to the head-neck region but can occur spontaneously.
The splitting of the vessel wall in one or both (left and right) internal carotid arteries (CAROTID ARTERY, INTERNAL). Interstitial hemorrhage into the media of the vessel wall can lead to occlusion of the internal carotid artery and aneurysm formation.
Procedures to cause the disintegration of THROMBI by physical interventions.
The return of a sign, symptom, or disease after a remission.
Unanticipated information discovered in the course of testing or medical care. Used in discussions of information that may have social or psychological consequences, such as when it is learned that a child's biological father is someone other than the putative father, or that a person tested for one disease or disorder has, or is at risk for, something else.
An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE.
The artery supplying nearly all the left half of the transverse colon, the whole of the descending colon, the sigmoid colon, and the greater part of the rectum. It is smaller than the superior mesenteric artery (MESENTERIC ARTERY, SUPERIOR) and arises from the aorta above its bifurcation into the common iliac arteries.
Formation and development of a thrombus or blood clot in the blood vessel.
Pathological processes involving any part of the AORTA.
The main artery of the thigh, a continuation of the external iliac artery.
A scale that assesses the outcome of serious craniocerebral injuries, based on the level of regained social functioning.
Death resulting from the presence of a disease in an individual, as shown by a single case report or a limited number of patients. This should be differentiated from DEATH, the physiological cessation of life and from MORTALITY, an epidemiological or statistical concept.
Biocompatible materials usually used in dental and bone implants that enhance biologic fixation, thereby increasing the bond strength between the coated material and bone, and minimize possible biological effects that may result from the implant itself.
Homopolymer of tetrafluoroethylene. Nonflammable, tough, inert plastic tubing or sheeting; used to line vessels, insulate, protect or lubricate apparatus; also as filter, coating for surgical implants or as prosthetic material. Synonyms: Fluoroflex; Fluoroplast; Ftoroplast; Halon; Polyfene; PTFE; Tetron.
Formation or presence of a blood clot (THROMBUS) in a blood vessel within the SKULL. Intracranial thrombosis can lead to thrombotic occlusions and BRAIN INFARCTION. The majority of the thrombotic occlusions are associated with ATHEROSCLEROSIS.
Computed tomography where there is continuous X-ray exposure to the patient while being transported in a spiral or helical pattern through the beam of irradiation. This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography, where data is obtained and computed from individual sequential exposures.
Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.
The degree to which BLOOD VESSELS are not blocked or obstructed.
Application of a ligature to tie a vessel or strangulate a part.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
Bleeding into one or both CEREBRAL HEMISPHERES including the BASAL GANGLIA and the CEREBRAL CORTEX. It is often associated with HYPERTENSION and CRANIOCEREBRAL TRAUMA.
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.
Criteria and standards used for the determination of the appropriateness of the inclusion of patients with specific conditions in proposed treatment plans and the criteria used for the inclusion of subjects in various clinical trials and other research protocols.
Complications that affect patients during surgery. They may or may not be associated with the disease for which the surgery is done, or within the same surgical procedure.
Severe or complete loss of motor function in the lower extremities and lower portions of the trunk. This condition is most often associated with SPINAL CORD DISEASES, although BRAIN DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; NEUROMUSCULAR DISEASES; and MUSCULAR DISEASES may also cause bilateral leg weakness.
Either of two fleshy protuberances at the lower posterior section of the trunk or HIP in humans and primate on which a person or animal sits, consisting of gluteal MUSCLES and fat.
Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.
The two principal arteries supplying the structures of the head and neck. They ascend in the neck, one on each side, and at the level of the upper border of the thyroid cartilage, each divides into two branches, the external (CAROTID ARTERY, EXTERNAL) and internal (CAROTID ARTERY, INTERNAL) carotid arteries.
An autosomal dominant aneurysm with multisystem abnormalities caused by increased TGF-BETA signaling due to mutations in type I or II of TGF-BETA RECEPTOR. Additional craniofacial features include CLEFT PALATE; CRANIOSYNOSTOSIS; HYPERTELORISM; or bifid uvula. Phenotypes closely resemble MARFAN SYNDROME; Marfanoid craniosynostosis syndrome (Shprintzen-Goldberg syndrome); and EHLERS-DANLOS SYNDROME.
Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
Reduced blood flow to the spinal cord which is supplied by the anterior spinal artery and the paired posterior spinal arteries. This condition may be associated with ARTERIOSCLEROSIS, trauma, emboli, diseases of the aorta, and other disorders. Prolonged ischemia may lead to INFARCTION of spinal cord tissue.
The main trunk of the systemic arteries.
Pathological processes which result in the partial or complete obstruction of ARTERIES. They are characterized by greatly reduced or absence of blood flow through these vessels. They are also known as arterial insufficiency.
Surgical insertion of BLOOD VESSEL PROSTHESES, or transplanted BLOOD VESSELS, or other biological material to repair injured or diseased blood vessels.
Any of the large interior organs in any one of the three great cavities of the body, especially in the abdomen.
Artery originating from the internal carotid artery and distributing to the eye, orbit and adjacent facial structures.
Rare chronic inflammatory disease involving the small blood vessels. It is of unknown etiology and characterized by mucocutaneous ulceration in the mouth and genital region and uveitis with hypopyon. The neuro-ocular form may cause blindness and death. SYNOVITIS; THROMBOPHLEBITIS; gastrointestinal ulcerations; RETINAL VASCULITIS; and OPTIC ATROPHY may occur as well.
Connective tissue comprised chiefly of elastic fibers. Elastic fibers have two components: ELASTIN and MICROFIBRILS.
The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm.
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
Abnormal passage communicating with the ESOPHAGUS. The most common type is TRACHEOESOPHAGEAL FISTULA between the esophagus and the TRACHEA.
The proportion of survivors in a group, e.g., of patients, studied and followed over a period, or the proportion of persons in a specified group alive at the beginning of a time interval who survive to the end of the interval. It is often studied using life table methods.
Disorders of one or more of the twelve cranial nerves. With the exception of the optic and olfactory nerves, this includes disorders of the brain stem nuclei from which the cranial nerves originate or terminate.
Artificial substitutes for body parts, and materials inserted into tissue for functional, cosmetic, or therapeutic purposes. Prostheses can be functional, as in the case of artificial arms and legs, or cosmetic, as in the case of an artificial eye. Implants, all surgically inserted or grafted into the body, tend to be used therapeutically. IMPLANTS, EXPERIMENTAL is available for those used experimentally.
In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.
The continuation of the subclavian artery; it distributes over the upper limb, axilla, chest and shoulder.
Diseases of the oculomotor nerve or nucleus that result in weakness or paralysis of the superior rectus, inferior rectus, medial rectus, inferior oblique, or levator palpebrae muscles, or impaired parasympathetic innervation to the pupil. With a complete oculomotor palsy, the eyelid will be paralyzed, the eye will be in an abducted and inferior position, and the pupil will be markedly dilated. Commonly associated conditions include neoplasms, CRANIOCEREBRAL TRAUMA, ischemia (especially in association with DIABETES MELLITUS), and aneurysmal compression. (From Adams et al., Principles of Neurology, 6th ed, p270)
Techniques for securing together the edges of a wound, with loops of thread or similar materials (SUTURES).
Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.
A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.
A birth defect characterized by the narrowing of the AORTA that can be of varying degree and at any point from the transverse arch to the iliac bifurcation. Aortic coarctation causes arterial HYPERTENSION before the point of narrowing and arterial HYPOTENSION beyond the narrowed portion.
An endopeptidase that is structurally similar to MATRIX METALLOPROTEINASE 2. It degrades GELATIN types I and V; COLLAGEN TYPE IV; and COLLAGEN TYPE V.
A vital statistic measuring or recording the rate of death from any cause in hospitalized populations.
Transducers that are activated by pressure changes, e.g., blood pressure.
The vessels carrying blood away from the heart.
The period of confinement of a patient to a hospital or other health facility.
Ultrasonography applying the Doppler effect combined with real-time imaging. The real-time image is created by rapid movement of the ultrasound beam. A powerful advantage of this technique is the ability to estimate the velocity of flow from the Doppler shift frequency.
Restoration of an organ or other structure to its original site.
A branch of the celiac artery that distributes to the stomach, pancreas, duodenum, liver, gallbladder, and greater omentum.
The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.
Freedom of equipment from actual or potential hazards.
Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.
Arteries arising from the external carotid or the maxillary artery and distributing to the temporal region.
Constriction of arteries in the SKULL due to sudden, sharp, and often persistent smooth muscle contraction in blood vessels. Intracranial vasospasm results in reduced vessel lumen caliber, restricted blood flow to the brain, and BRAIN ISCHEMIA that may lead to hypoxic-ischemic brain injury (HYPOXIA-ISCHEMIA, BRAIN).
A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.
The worsening of a disease over time. This concept is most often used for chronic and incurable diseases where the stage of the disease is an important determinant of therapy and prognosis.
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
The act of constricting.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.
The vein which drains the foot and leg.
Computer systems or networks designed to provide radiographic interpretive information.
Procedures that avoid use of open, invasive surgery in favor of closed or local surgery. These generally involve use of laparoscopic devices and remote-control manipulation of instruments with indirect observation of the surgical field through an endoscope or similar device.
A tissue adhesive that is applied as a monomer to moist tissue and polymerizes to form a bond. It is slowly biodegradable and used in all kinds of surgery, including dental.
Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.
An abnormal anatomical passage between the INTESTINE, and another segment of the intestine or other organs. External intestinal fistula is connected to the SKIN (enterocutaneous fistula). Internal intestinal fistula can be connected to a number of organs, such as STOMACH (gastrocolic fistula), the BILIARY TRACT (cholecystoduodenal fistula), or the URINARY BLADDER of the URINARY TRACT (colovesical fistula). Risk factors include inflammatory processes, cancer, radiation treatment, and surgical misadventures (MEDICAL ERRORS).
A group of compounds having the general formula CH2=C(CN)-COOR; it polymerizes on contact with moisture; used as tissue adhesive; higher homologs have hemostatic and antibacterial properties.
The largest of the cerebral arteries. It trifurcates into temporal, frontal, and parietal branches supplying blood to most of the parenchyma of these lobes in the CEREBRAL CORTEX. These are the areas involved in motor, sensory, and speech activities.
A secreted endopeptidase homologous with INTERSTITIAL COLLAGENASE, but which possesses an additional fibronectin-like domain.
Localized or diffuse reduction in blood flow through the vertebrobasilar arterial system, which supplies the BRAIN STEM; CEREBELLUM; OCCIPITAL LOBE; medial TEMPORAL LOBE; and THALAMUS. Characteristic clinical features include SYNCOPE; lightheadedness; visual disturbances; and VERTIGO. BRAIN STEM INFARCTIONS or other BRAIN INFARCTION may be associated.
A hypoperfusion of the BLOOD through an organ or tissue caused by a PATHOLOGIC CONSTRICTION or obstruction of its BLOOD VESSELS, or an absence of BLOOD CIRCULATION.
A distribution in which a variable is distributed like the sum of the squares of any given independent random variable, each of which has a normal distribution with mean of zero and variance of one. The chi-square test is a statistical test based on comparison of a test statistic to a chi-square distribution. The oldest of these tests are used to detect whether two or more population distributions differ from one another.
The circulation of blood through the BLOOD VESSELS of the BRAIN.
Assessment of sensory and motor responses and reflexes that is used to determine impairment of the nervous system.
Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed)
Rhythmic, intermittent propagation of a fluid through a BLOOD VESSEL or piping system, in contrast to constant, smooth propagation, which produces laminar flow.
Organized collections of computer records, standardized in format and content, that are stored in any of a variety of computer-readable modes. They are the basic sets of data from which computer-readable files are created. (from ALA Glossary of Library and Information Science, 1983)
Embolism or thrombosis involving blood vessels which supply intracranial structures. Emboli may originate from extracranial or intracranial sources. Thrombosis may occur in arterial or venous structures.
Substances used to cause adherence of tissue to tissue or tissue to non-tissue surfaces, as for prostheses.
Mild to moderate loss of bilateral lower extremity motor function, which may be a manifestation of SPINAL CORD DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; MUSCULAR DISEASES; INTRACRANIAL HYPERTENSION; parasagittal brain lesions; and other conditions.
Situations or conditions requiring immediate intervention to avoid serious adverse results.
A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.
A nonparametric method of compiling LIFE TABLES or survival tables. It combines calculated probabilities of survival and estimates to allow for observations occurring beyond a measurement threshold, which are assumed to occur randomly. Time intervals are defined as ending each time an event occurs and are therefore unequal. (From Last, A Dictionary of Epidemiology, 1995)
Surgery performed on the heart or blood vessels.
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.
Abnormal communication between two ARTERIES that may result from injury or occur as a congenital abnormality.
An area occupying the most posterior aspect of the ABDOMINAL CAVITY. It is bounded laterally by the borders of the quadratus lumborum muscles and extends from the DIAPHRAGM to the brim of the true PELVIS, where it continues as the pelvic extraperitoneal space.
Either of the two principal arteries on both sides of the neck that supply blood to the head and neck; each divides into two branches, the internal carotid artery and the external carotid artery.
Incision into the side of the abdomen between the ribs and pelvis.
A chronic inflammatory process that affects the AORTA and its primary branches, such as the brachiocephalic artery (BRACHIOCEPHALIC TRUNK) and CAROTID ARTERIES. It results in progressive arterial stenosis, occlusion, and aneurysm formation. The pulse in the arm is hard to detect. Patients with aortitis syndrome often exhibit retinopathy.
A synthetic tetracycline derivative with similar antimicrobial activity.
The part of brain that lies behind the BRAIN STEM in the posterior base of skull (CRANIAL FOSSA, POSTERIOR). It is also known as the "little brain" with convolutions similar to those of CEREBRAL CORTEX, inner white matter, and deep cerebellar nuclei. Its function is to coordinate voluntary movements, maintain balance, and learn motor skills.
Pathological conditions of the CARDIOVASCULAR SYSTEM caused by infection of MYCOBACTERIUM TUBERCULOSIS. Tuberculosis involvement may include the HEART; the BLOOD VESSELS; or the PERICARDIUM.
Obstruction of a blood vessel (embolism) by a blood clot (THROMBUS) in the blood stream.
Obstruction of flow in biological or prosthetic vascular grafts.
Accumulation of blood in the SUBDURAL SPACE with acute onset of neurological symptoms. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.
Expectoration or spitting of blood originating from any part of the RESPIRATORY TRACT, usually from hemorrhage in the lung parenchyma (PULMONARY ALVEOLI) and the BRONCHIAL ARTERIES.
A class of statistical procedures for estimating the survival function (function of time, starting with a population 100% well at a given time and providing the percentage of the population still well at later times). The survival analysis is then used for making inferences about the effects of treatments, prognostic factors, exposures, and other covariates on the function.
The vein formed by the union of the anterior and posterior tibial veins; it courses through the popliteal space and becomes the femoral vein.
Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures.
Insertion of a catheter into a peripheral artery, vein, or airway for diagnostic or therapeutic purposes.
First aid or other immediate intervention for accidents or medical conditions requiring immediate care and treatment before definitive medical and surgical management can be procured.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
A slowly progressive condition of unknown etiology, characterized by deposition of fibrous tissue in the retroperitoneal space compressing the ureters, great vessels, bile duct, and other structures. When associated with abdominal aortic aneurysm, it may be called chronic periaortitis or inflammatory perianeurysmal fibrosis.
Radiography of the vascular system of the heart muscle after injection of a contrast medium.
An idiopathic, segmental, nonatheromatous disease of the musculature of arterial walls, leading to STENOSIS of small and medium-sized arteries. There is true proliferation of SMOOTH MUSCLE CELLS and fibrous tissue. Fibromuscular dysplasia lesions are smooth stenosis and occur most often in the renal and carotid arteries. They may also occur in other peripheral arteries of the extremity.
Patient care procedures performed during the operation that are ancillary to the actual surgery. It includes monitoring, fluid therapy, medication, transfusion, anesthesia, radiography, and laboratory tests.
The internal resistance of a material to moving some parts of it parallel to a fixed plane, in contrast to stretching (TENSILE STRENGTH) or compression (COMPRESSIVE STRENGTH). Ionic crystals are brittle because, when subjected to shear, ions of the same charge are brought next to each other, which causes repulsion.
Surgery performed on the heart.
A pathological condition caused by impaired blood flow in the basal regions of cerebral hemispheres (BASAL GANGLIA), such as INFARCTION; HEMORRHAGE; or ISCHEMIA in vessels of this brain region including the lateral lenticulostriate arteries. Primary clinical manifestations include involuntary movements (DYSKINESIAS) and muscle weakness (HEMIPARESIS).
The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material).
Forcible or traumatic tear or break of an organ or other soft part of the body.
Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream.
A surgical specialty concerned with the treatment of diseases and disorders of the brain, spinal cord, and peripheral and sympathetic nervous system.
Statistical models which describe the relationship between a qualitative dependent variable (that is, one which can take only certain discrete values, such as the presence or absence of a disease) and an independent variable. A common application is in epidemiology for estimating an individual's risk (probability of a disease) as a function of a given risk factor.
Pathological conditions in the DUODENUM region of the small intestine (INTESTINE, SMALL).

Prevalence of true vein graft aneurysms: implications for aneurysm pathogenesis. (1/984)

BACKGROUND: Circumstantial evidence suggests that arterial aneurysms have a different cause than atherosclerosis and may form part of a generalized dilating diathesis. The aim of this study was to compare the rates of spontaneous aneurysm formation in vein grafts performed either for popliteal aneurysms or for occlusive disease. The hypothesis was that if arterial aneurysms form a part of a systemic process, then the rates of vein graft aneurysms should be higher for patients with popliteal aneurysms than for patients with lower limb ischemia caused by atherosclerosis. METHODS: Infrainguinal vein grafting procedures performed from 1990 to 1995 were entered into a prospective audit and graft surveillance program. Aneurysmal change was defined as a focal increase in the graft diameter of 1.5 cm or greater, excluding false aneurysms and dilatations after graft angioplasty. RESULTS: During the study period, 221 grafting procedures were performed in 200 patients with occlusive disease and 24 grafting procedures were performed in 21 patients with popliteal aneurysms. Graft surveillance revealed spontaneous aneurysm formation in 10 of the 24 bypass grafts (42%) for popliteal aneurysms but in only 4 of the 221 grafting procedures (2%) that were performed for chronic lower limb ischemia. CONCLUSION: This study provides further evidence that aneurysmal disease is a systemic process, and this finding has clinical implications for the treatment of popliteal aneurysms.  (+info)

The diameter of the common femoral artery in healthy human: influence of sex, age, and body size. (2/984)

PURPOSE: To determine the relevance of dilatations of the common femoral artery (CFA), knowledge of the normal CFA diameter is essential. The diameter of the CFA in healthy male and female subjects of different ages was investigated. METHODS: The diameter of the CFA was measured in 122 healthy volunteers (59 male, 63 female; 8 to 81 years of age) with echo-tracking B-mode ultrasound scan. The influence of age, sex, height, weight, body surface area (BSA), and systolic blood pressure was analyzed by means of a multiple regression model. RESULTS: The CFA increased steadily in diameter throughout life. From 25 years onwards, the diameter was larger in men than in women. Significant correlations were found between the CFA diameter and weight (r = 0.58 and r = 0.57 in male and female subjects, respectively; P <.0001), height (r = 0.49 and r = 0.54 in male and female subjects, respectively; P <.0001), and BSA (r = 0.60 and r = 0.62 in male and female subjects, respectively; P <.0001). Age and BSA were used to create a model for prediction of the CFA diameter (r = 0.71 and r = 0.77 in male and female subjects, respectively; P <.0001). CONCLUSION: The diameter of the CFA increases with age, initially during growth but also in adults. This is related to age, body size, and sex male subjects have larger arteries than female subjects. It is now possible to predict the normal CFA diameter, and nomograms that may be used in the study of aneurysmal disease are presented.  (+info)

Focal aneurysmal dilatation of subchorionic vessels simulating chorioangioma. (3/984)

Subchorionic vascular aneurysms of the placenta are rare lesions and may present confusion with chorioangioma or focal mesenchymal dysplasia on sonography. To our knowledge, the findings of placental aneurysms have not been reported in the ultrasound literature. We present a case with detailed sonographic evaluation, including spectral and color Doppler and pathological analysis, that was mistaken for chorioangioma prenatally. Knowledge of this benign entity may allow the sonologist to recommend conservative management in similar cases.  (+info)

Vasa vasorum: another cause of the carotid string sign. (4/984)

BACKGROUND AND PURPOSE: Our purpose was to describe a variant of the carotid string sign that may be associated with a completely occluded vessel and to consider possible pathophysiological mechanisms for this observation. METHODS: Carotid angiography was performed in three patients with suspected carotid stenosis and in a fourth with carotid dissection. Surgery was performed in one of the patients with carotid stenosis. RESULTS: On all angiograms, instead of a single linear or curvilinear contrast "string," either single or multiple serpiginous channels were seen. In one case, such a channel was seen emanating from below the origin of an occluded internal carotid stump, reconstituting the distal portion of the vessel. Surgery revealed a completely occluded lumen with a small intramural vessel bypassing the obstruction. CONCLUSION: We propose that these channels are either atherosclerotically induced neovessels connecting bridging vasa vasorum or recanalized luminal thrombus. We review the literature associated with this subject.  (+info)

Mortality league tables: do they inform or mislead? (5/984)

OBJECTIVE: To examine certain methodological issues related to the publication of mortality league tables, with particular reference to severity adjustment and sample size. DESIGN: Retrospective analysis of inpatient hospital records. SETTING: 22 hospitals in North West Thames health region for the fiscal year 1992-3. SUBJECTS: All admissions with a principal diagnosis of aortic aneurysm, carcinoma of the colon, cervical cancer, cholecystectomy, fractured neck of femur, head injury, ischaemic heart disease, and peptic ulcer. MAIN MEASURES: In hospital mortality rates adjusted by disease severity and calculated on the basis of both admissions and episodes. RESULTS: The numbers of deaths from specific conditions were often small and the corresponding confidence intervals wide. Rankings of hospitals by death rate are sensitive to adjustment for severity of disease. There are some differences that cannot be explained using routine data. CONCLUSIONS: Comparison of crude death rates may be misleading. Some adjustment for differences in severity is possible, but current systems are unsatisfactory. Differences in death rates should be studied, but because of the scope for manipulating data, this should be undertaken in a collaborative rather than a confrontational way. Any decision to publish league tables of death rates will be on political rather than scientific grounds.  (+info)

Arterial aneurysms in patients infected with human immunodeficiency virus: a distinct clinicopathology entity? (6/984)

Arterial aneurysms have only recently been associated with the human immunodeficiency virus (HIV). The clinical and pathological features of 10 HIV-positive patients with arterial aneurysms were retrospectively evaluated. These aneurysms were unusual in that they affected young black patients, occurred in atypical sites, and tended toward multiplicity. Surgery was performed in eight patients. Acute and chronic inflammatory changes were revealed by means of histologic examination of the aneurysm walls, with occlusion of the vasa vasora by inflammatory infiltrate or edema being a prominent feature. Culture of the aneurysm wall or thrombus yielded positive results in two patients. The association between HIV and aneurysms may be coincidental, caused by direct viral action or by bacterial infection resulting from immunosuppression. Implications for therapy are discussed, and the need for further study is highlighted.  (+info)

Celiomesenteric anomaly with concurrent aneurysm. (7/984)

We describe a rare case of a celiomesenteric anomaly with concurrent aneurysm. The patient, a 53-year-old man, had no abdominal pain or discomfort. The presence of a celiac artery aneurysm was suspected on the basis of the results of abdominal computerized tomographic scanning and echo ultrasound scanning performed because of proteinuria. Intra-arterial digital subtraction angiographic results showed the anomaly and aneurysm. Because of the risk of rupture of the aneurysm, the lesion was repaired surgically, with the placement of an interpositional prosthetic graft. We found no previous reports of celiomesenteric anomaly with concurrent aneurysm repaired with prosthetic graft.  (+info)

Left subclavian artery aneurysm: two cases of rare congenital etiology. (8/984)

Subclavian artery aneurysms are uncommon. The most common causes of these aneurysms are atherosclerosis and traumatic pseudoaneurysm. We report two cases of rare congenial left subclavian artery aneurysms. Diagnosis with aortography and treatment with resection with bypass grafting are the optimal approaches to avoid life-threatening and limb-threatening ischemia.  (+info)

Primary femoral aneurysms are uncommon and are frequently associated with other aneurysms, particularly those of the aorta and popliteal arteries. True isolated atherosclerotic aneurysm of the superficial femoral artery is a rare pathology [2].. Rigdon et al discussed 17 arteriosclerotic superficial femoral artery aneurysms in 14 patients, which revealed complication at presentation in 65% - rupture in 35%, thrombosis in 18%, and distal emboli in 12%. However, limb salvage was 94% and there were no perioperative deaths [3]. Males (75%) were more common than females, and the average age was 77 years (range 61 to 93) [3].. True femoral artery aneurysms are attributed to weakening of the arterial wall due to atherosclerosis. True femoral artery aneurysms are relatively rare and are found in elderly men who have strong smoking history. Aortic aneurysms are approximately 10 times more common. According to Levi et al distal embolization occurs in 0-26% of cases, acute thrombosis occurs in around 15% ...
True pulmonary artery aneurysms are rare. Deterling and Clagett reported only eight cases in a review of 109 571 necropsies.2 Aggressive surgical approaches have often been advocated based on previous reports of dissection or rupture. Pulmonary artery aneurysms, even when very large, in the presence of low pulmonary pressures and the absence of left to right congenital or acquired shunts, may not pose such a risk in sharp contrast with those with pulmonary hypertension or Eisenmengers syndrome.3,4 Patients in this series all had low pulmonary arterial pressures, no significant congenital or acquired left to right shunts, and giant pulmonary artery aneurysms involving the main or proximal branch pulmonary arteries. They survived to a median age of 52 years without evidence of intimal tear or medial dissection and presented because of right ventricular dysfunction secondary to pulmonary regurgitation.. True aneurysms involve all components of the vessel wall.5 There may be associated intrinsic ...
TY - JOUR. T1 - Surgical and medical management of extracranial carotid artery aneurysms. AU - Fankhauser, Grant T.. AU - Stone, William M.. AU - Fowl, Richard J.. AU - ODonnell, Mark E.. AU - Bower, Thomas C.. AU - Meyer, Fredric B.. AU - Money, Samuel R.. PY - 2015/2/1. Y1 - 2015/2/1. N2 - Objective Extracranial carotid artery aneurysms (ECCAs) are extremely rare with limited information about management options. Our purpose was to review our institutions experience with ECCAs during 15 years and to discuss the presentation and treatment of these aneurysms. Methods A retrospective review of patients diagnosed with ECCAs from 1998 to 2012 was performed. Symptoms, risk factors, etiology, diagnostic methods, treatments, and outcomes were reviewed. Results During the study period, 141 aneurysms were diagnosed in 132 patients (mean age, 61 years; 69 men). There were 116 (82%) pseudoaneurysms and 25 (18%) true aneurysms; 69 (49%) aneurysms were asymptomatic, whereas 72 (52%) had symptoms (28 ...
A 79-year-old man, with a background of peripheral vascular disease, presented to the emergency department with a sudden increase in the size of his swelling in the right thigh, indicating rupture of his right superficial femoral artery aneurysm. His past medical history included having had a left femoropopliteal bypass (1986), abdominal aortic aneurysm repair (1991), repair of false aneurysm on the right (1992) and repair of left common femoral artery aneurysm (1995). On surgical exploration, four contiguous aneurysms in the right superficial femoral artery were identified, which measured around 25 cm in total length. After achieving control of the aneurysm, it was noted that the popliteal artery was unsuitable for anastomosis. However, the leg was still adequately perfused via collaterals in spite of the ligation, so nothing further was done. The patient was put on a heparin infusion postoperation, and had an uneventful recovery with a viable limb on discharge. It is a useful reminder that ...
Abstract The rarity of saphenous vein graft aneurysms following coronary artery bypass graft surgery presents an interesting case, as seen in a 72 year-old gentleman who underwent his third bypass surgery for an aneurysmal graft. Information regarding the case was gathered using the Lehigh Valley Health Network medical databases. The 8 cm aneurysmal portion of the graft was resected successfully and replaced with a CryoVein. Following surgery the patient had relief of symptoms and recovered well. It was determined that the patient had two true aneurysms present, making surgery a necessity in this specific case. Introduction Saphenous vein graft (SVG) aneurysms following coronary artery bypass grafting (CABG) are rare but fatal complications that frequently require surgical repair.1 We address a rare surgical case regarding an individual requiring a third sternotomy involving two SVG aneurysms with thrombus, 22 years following CABG. Information was gathered retrospectively using the LVHN database. Case
TY - JOUR. T1 - Less invasive (common) femoral artery aneurysm repair using endografts and limited dissection. AU - Pecoraro, Felice. AU - Veith, Frank J.. AU - Lachat, null. AU - Rancic, null. AU - Pfammatter, null. AU - Mayer, null. PY - 2013. Y1 - 2013. N2 - Objective: We report our experience with the treatment of femoral artery aneurysms (FAAs) under localanaesthesia with limited dissection, using endografts to facilitate the proximal anastomosis and some distalanastomoses.Method: Between January 2006 and December 2010, six males, mean age 72 years (range, 65e80 years) withFAAs were treated at the University Hospital of Zurich. All operations were performed under local anaesthesiawith analgosedation, except for one performed under spinal anaesthesia. After limited dissection and puncture ofthe anterior wall of the FAA, a sheath and a self-expanding endograft were introduced over a guide wire and withfluoroscopy they were guided intraluminally into the proximal normal neck of the FAA and ...
Extracranial carotid artery aneurysms are uncommon and occur in a broad range of patients due to many etiologies. True aneurysms involving all layers of the carotid arterial wall and false aneurysms both occur. Overall, extracranial carotid artery an
Pulmonary venous aneurysm is rare and its etiology is still debated. Some studies have shown that acquired aneurysms are caused by an increase in left atrial pressure and mitral regurgitation. However, few reports have provided direct evidence of this pathology. We present a case of pulmonary venous aneurysm diagnosed using a combination of echocardiography and contrast-enhanced computed tomography with strong evidence for an etiology of severe mitral valve regurgitation. A 24-year-old Chinese man was diagnosed with mitral valve perforation with severe mitral regurgitation caused by infectious endocarditis. A right inferior pulmonary venous aneurysm was diagnosed by contrast-enhanced computed tomography. Color Doppler echocardiography revealed a mitral regurgitation jet filling the giant aneurysm. Three-dimensional echocardiography provided a clear stereoscopic view of the aneurysm. These imaging modalities provided direct evidence for the etiology of the pulmonary venous aneurysm.
TY - JOUR. T1 - Case report and management approach in idiopathic pulmonary arteries aneurysm. AU - Haj-Yahia, Saleem. AU - Sbaih, Mohammad. AU - Bali, Khalil. AU - Darwazah, Ahmad. AU - Othman, Wafiq. AU - Zaghari, Mahmoud. AU - Angelini, Gianni. AU - Caputo, Massimo. AU - Barqawi, Abdel-Karim. PY - 2018/10/26. Y1 - 2018/10/26. N2 - BACKGROUND: Idiopathic pulmonary artery aneurysm is a rare anomaly with only a handful reports in the literature. It is often asymptomatic, while the first presentation could be severe hemoptysis or death. Surgical intervention needs to be planned carefully with a multidisciplinary team approach to secure optimal outcome. We hope to spread our experience with such cases and to encourage other surgeons worldwide to deal surgically with these cases when its indicated.CASE PRESENTATION: A 47 years old man presented to our institution after three episodes of hemoptysis, echo demonstrated good left ventricle (LV) systolic function, normal right ventricle (RV) size and ...
The limited number of patients with identified Hughes-Stovin syndrome has precluded the initiation of controlled studies of the management of patients with pulmonary arterial aneurysms [3]. Corticosteroids, alone or in combination with an immunosuppressant, are generally considered first-line therapy [4]. Surgical resection has been the traditional treatment of choice when the risk of lethal hemoptysis necessitates more definitive therapy. Total pneumonectomy or lobectomy has been performed with some successful results [5].. The high morbidity associated with surgery and the frequent bilaterality and multifocality of the pulmonary artery aneurysms make transcatheter embolization an attractive alternative to surgery in most cases. To our knowledge, few patients with Hughes-Stovin syndrome have been treated by performing embolization of a pulmonary arterial aneurysm with the use of several agents, including steel coils, Ethibloc, and isobutyl cyanoacrylate, an epoxy [4, 6, 7].. This is the first ...
Carotid artery aneurysm: Find the most comprehensive real-world symptom and treatment data on carotid artery aneurysm at PatientsLikeMe. 23 patients with carotid artery aneurysm experience fatigue, depressed mood, pain, anxious mood, and insomnia and use Amphetamine-Dextroamphetamine, Cyclobenzaprine, Handicap/Disability Parking Permit, Pregabalin, and Pyridostigmine to treat their carotid artery aneurysm and its symptoms.
This is a prospective, multi-center study of patients with intracranial or peripheral aneurysms who are treated by the PC 400 System. The primary objective is to gather post market data on the Penumbra Coil 400 (PC 400) System in the acute treatment of intracranial and peripheral aneurysms. Approximately 2,000 patients with intracranial or peripheral aneurysms treated by the PC 400 System at up to 100 centers will be enrolled. Data for each patient are collected up to discharge or 3 days post-procedure, whichever occurs sooner. Long term follow-up to one year will be conducted in accordance to the standard of care at each participating hospital ...
TY - JOUR. T1 - Ruptured Persistent Sciatic Artery Aneurysm Managed by Endovascular Embolization. AU - Rezayat, Combiz. AU - Sambol, Elliot. AU - Goldstein, Lee. AU - Broderick, Stephen R.. AU - Karwowski, John K.. AU - McKinsey, James F.. AU - Vouyouka, Ageliki G.. PY - 2010/1. Y1 - 2010/1. N2 - Persistent sciatic artery (PSA) is a rare vascular anomaly present in 0.025% to 0.05% of the population. They are particularly prone to aneurysmal degeneration, potentially leading to distal ischemia, sciatic neuropathy, or rarely rupture. Here, we describe a case of a ruptured PSA aneurysm managed by endovascular embolization. A 70-year-old man initially presented with acute left lower extremity ischemia. He was found to have a popliteal embolus originating from a complete persistent sciatic artery aneurysm. He underwent thrombolysis followed by a femoropopliteal bypass and ligation of the proximal popliteal artery to exclude the PSA. Four weeks later he re-presented with severe pain, a pulsatile ...
Background: The incidence of pulmonary artery aneurysm (PAA) in children remains unknown. There are few reports of a transcutaneous interventional approach to address this type of pathology. Management of PAAs while on VA ECMO has not been described in pediatrics. Objectives/Goal: Methods/Design: Case: 9-year-old previously healthy male presented with MRSA associated ARDS and sepsis requiring urgent VA ECMO cannulation. Chest CT done on ECMO day 22 showed development of right sided PAAs. Patient had an episode of significant pulmonary hemorrhage. Angiogram demonstrated two fusiform right PAAs, one of which had ruptured and was bleeding into the lung parenchyma. Patient had successful occlusion of the aneurysms with Amplatzer devices in the catheterization lab while on VA ECMO support. The procedure was complicated by flail tricuspid valve. Patient tolerated this complication and the procedure went well with no further hemorrhagic events. He decannulated from ECMO and was discharged from the PICU
2018 The Authors Introduction: The case of an idiopathic thrombosed popliteal aneurysm is described in an otherwise healthy 6 year old child. This is the fourth reported case and the second youngest patient to present with an idiopathic isolated popliteal aneurysm. Report: A 6 year old boy presented with an acutely ischaemic right foot. Computed tomography angiography confirmed a thrombosed popliteal aneurysm. A femoropopliteal bypass was performed with reversed long saphenous vein and ligation of the aneurysm. Yearly follow up is ongoing with ultrasound surveillance; the childs growth and development is unaffected, and the graft is patent. There was a readmission over six years later with claudication on the right side. There was evidence of thrombus in the graft with associated distal embolisation, which was managed conservatively with anticoagulation. Discussion: Given the rarity of such presentations in the paediatric population, there is minimal good quality data to guide treatment. There ...
The shape of an aneurysm is described as being fusiform or saccular which helps to identify a true aneurysm. A true aneurysm involves all three layers of the arterial blood vessel wall. The more common fusiform-shaped aneurysm bulges or balloons out on all sides of the aorta. A saccular-shaped aneurysm bulges or balloons out only on one side.. The aorta is under constant pressure from blood being ejected from the heart. With each heartbeat, the walls of the aorta expand and spring back, exerting continual pressure or stress on the already weakened aneurysm wall. Therefore, there is a potential for rupture (bursting) or dissection (separation of the layers of the thoracic aortic wall), which may cause life-threatening hemorrhage (uncontrolled bleeding) and, potentially, death.. Once formed, an aneurysm will gradually increase in size and there will be a progressive weakening of the aneurysm wall. Treatment for a thoracic aneurysm may include surgical repair or removal of the aneurysm to prevent ...
Find the best popliteal aneurysm doctors in Kolkata. Get guidance from medical experts to select popliteal aneurysm specialist in Kolkata from trusted hospitals - credihealth.com
Behcet disease is a sort of systemic vasculitis characterized by oral and genital ulcers as well as uveitis of the eye. Thoracic manifestations of Behcet disease include multiple bilateral pulmonary artery aneurysms that are of fusiform or saccul...
Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. Colantino on what does it mean to have a popliteal aneurysm rupture: An aneurysm is an dilitation of a blood vessel. This is the result of weakening in the wall of the artery. The weakened wall can rupture, and bleeding into the tissues around the knee occurs, causing tremendous pain and swelling. The blood outside the artery can then impinge on flow to the lower leg and foot, causing ischemia. In all, very bad, and one of the reasons to fix aneurysms electively. for topic: What Does It Mean To Have A Popliteal Aneurysm Rupture
Peripheral aneurysms are rarely reported in Africa (4). Reports from western countries indicate that they are rare, but considered important because their presence may point to the concurrent involvement of the abdominal aorta (1,2). In the present study for example, half of the cases of popliteal aneurysms presented with concurrent abdominal aortic aneurysms. The clinical features of pulsatile masses, painful swellings, pressure effects, bleeding and gangrene are consistent with literature reports (2,3,6). Similarly the diagnostic modalities of doppler ultrasound, angiography and CT are typical for reported series (7,8). Indeed the ultrasonography provides a non invasive and relatively inexpensive technique for accurate and prompt diagnosis of aneurysm (8). The result of site localization in this study is unique. The popliteal artery is the most common site of peripheral aneurysms in Caucasian populations, accounting for 70 - 85% of the total, followed by femoral artery (1,2,10-14). In the ...
WHAT THIS STUDY ADDS Previous comparisons between open and endovascular repair of popliteal aneurysms have focused on asymptomatic patients, and have short follow up. This study is strengthened by the fact that it is contemporary, population based, without any selection bias, reporting on all kinds of presentations, and has approximately 90% 1 year follow up data. It shows that endovascular repair has significantly inferior results compared with open repair, in particular in the group of patients who present with acute ischaemia. We believe these results will make many vascular surgeons think twice before they treat patients endovascularly in the future. Background: Popliteal aneurysm (PA) is traditionally treated by open repair (OR). Endovascular repair (ER) has become more common. The aim was to describe time trends and compare results (OR/ER). Methods: The Swedish vascular registry, Swedvasc, has a specific PA module. Data were collected (2008-2012) and supplemented with a specific protocol ...
Over the last several years there have been multiple advances in vascular surgery. One of these is the treatment of mesenteric aneurysms, which are treatable via both endovascular and open means. While the aneurysm itself may cause pain, it is often asymptomatic. Depending on the size and symptoms, an aneurysm may require treatment as if an aneurysm ruptures it can cause a person to quickly bleed to death.If the aneurysm is large, growing, or painful it will need to be treated. Also, splenic aneurysms in young women are or plan on becoming pregnant need to be treated as they have a higher risk of rupture.. A vascular surgeon will perform an aneurysm exclusion or open resection of a mesenteric aneurysm. The first step will be to better characterize the aneurysm and the blood vessels that surround it. Most commonly, patients have had another study such as computed tomography, which demonstrates the aneurysm. Occasionally, one is found on duplex ultrasound. Regardless, optimal visualization of the ...
Charcot-Bouchard aneurysms (also known as miliary aneurysms or microaneurysms) are aneurysms of the brain vasculature which occur in small blood vessels (less than 300 micrometre diameter). Charcot-Bouchard aneurysms are most often located in the lenticulostriate vessels of the basal ganglia and are associated with chronic hypertension. Charcot-Bouchard aneurysms are a common cause of cerebral hemorrhage. If a Charcot-Bouchard aneurysm ruptures, it will lead to an intracerebral hemorrhage, which can cause hemorrhagic stroke, typically experienced as a sudden focal paralysis or loss of sensation. Charcot-Bouchard aneurysms are aneurysms in the small penetrating blood vessels of the brain. They are associated with hypertension. The common artery involved is the lenticulostriate branch of the middle cerebral artery. Common locations of hypertensive hemorrhages include the putamen, caudate, thalamus, pons, and cerebellum.[citation needed] As with any aneurysm, once formed they have a tendency to ...
A pulmonary aneurysm is the ballooning and weakened area of the pulmonary artery. It is a rare abnormality and is often difficult to diagnose. ...
Anastomotic aneurysms occurs at various levels of arterial system. Determining their location and incidence rate required investigation of large patient clinical material. Material and methods. In the years 1989-2010 in local centre 230 anastomotic aneurysms were operated in 180 patients. Results. For 187 (81.3%) patients anastomotic aneurysms were localised in the groin, while for remaining 43 (18.7%) they occurred in other localisations. In aortic arch branch they occurred four times (1.7), in descending aorta - three times (1.3%), in abdominal aorta - 14 (6.1%) and in iliac arteries - 6 (2.6%). While for anastomosis with popliteal artery they were diagnosed in 16 (7%) patients. Own clinical material was compared with literature data. Conclusions. Anastomotic aneurysms in over 80% of cases occur in the groin, remaining percentage corresponds to other localisations ...
Arterial aneurism. Close-up of an aneurism in the superior mesenteric artery. An aneurysm occurs when an artery wall weakens and swells like a balloon. If it bursts, an aneurysm can cause severe internal haemorrhage. - Stock Image C023/5657
Venous aneurysms may be either congenital or acquired. Most acquired venous aneurysms develop secondary to a traumatic vascular injury.2-4 Traumatic injury to a particular venous segment may cause disruption and weakness in the vessel wall and gradually result in dilatation and aneurysm formation, either true or false. Peripheral venous aneurysms may be seen in both lower and upper extremities and most have little clinical significance.7 However, they may present with severe clinical pictures such as deep venous thrombosis and pulmonary embolism.8. DSA produced a false positive result in this case. The wrong preoperative diagnosis in this case may be a result of problems attributable to angiography. Like almost every other diagnostic modality, it has user and technique dependent aspects to it. An error in the chain of consecutive steps may have resulted in the misdiagnosis. The premature diagnosis based on colour Doppler ultrasound and early DSA images may have been altered by DSA examination at ...
Development of aspergilloma is common in cases with a fungus ball-like shadow in cavities due to old tuberculosis. Some reports have shown that blood clots tend to appear as a fungus ball-like shadow. A 71-year-old man with a history of pulmonary tuberculosis presented with a fungus ball-like shadow in an old cavity and hemoptysis. There was no evidence of aspergillus infection on various examinations. We confirmed a blood clot and aneurysm of an artery under direct vision by bronchoscopy. A lateral thoracic artery aneurysm was detected by angiography ...
Aneurysms of the popliteal artery are the most frequent ones among all peripheral aneurysms. They are mainly of atherosclerotic in origin and only 4% of the cases have different origin, such as: Marfan syndrome, syphilis, bacterial infection, Behçet-syndrome, trauma or entrapment syndrome of the popliteal artery. The medical condition usually becomes apparent in the 5th-7th decade of age and afflicts mainly men in a gender ratio of 30:1.. The most frequent severe complication of popliteal aneurysms is the acute thrombotic occlusion, which often has a dramatic course.. The timely diagnosis and treatment of the acute cases is decisive for the final result. Apart from the acute arterial occlusion, the popliteal aneurysm leads also to peripheral arterioerterial embolisms which can be asymptomatic.. We did not experience any amputation in the a froid operated cases, but we observed a persistence of the pre-existing intermittent claudication with invalidating consequences. The frequent permanent ...
Treatment of a renal artery aneurysm depends on factors such as the size and location of the aneurysm and whether or not symptoms are present. Certain types of small (less than two centimeters, or about three-quarters of an inch) aneurysms may not be treated, but may be observed for growth or development of other complications.. Larger aneurysms (greater than two centimeters, or three-quarters of an inch), dissecting aneurysms, aneurysms causing kidney ischemia (lack of blood flow to the kidney tissue) and hypertension, aneurysms that are growing larger, and aneurysms causing symptoms may be treated surgically.. Because of the increased risk for rupture (bursting), a renal artery aneurysm in a pregnant woman or a woman of childbearing age will generally be treated surgically.. ...
The objectives of this study were to investigate the consistency, patency, and natural history of a vein graft canine aneurysm model and to determine the effectiveness of various coil designs on inducing aneurysm thrombosis. Twenty-one sacculuslike aneurysms were created in mongrel dogs by anastomosing a vein pouch to the common carotid artery. The model produced wide-neck aneurysms with 100% patency. The canine vein graft aneurysm provided an excellent model for the evaluation of endovascular devices. Three types of specially designed platinum coils were placed in the aneurysms: those with simple curves, those with complex curves, and those with flower petal curves and silk fibers. These coils were placed by the endovascular route by means of microcatheters. Flower petal coils with silk fibers were effective in producing thrombosis of the aneurysms, suggesting that coils of the appropriate design may be useful in the endovascular treatment of aneurysms. The other coil designs evaluated, those ...
Inclusion Criteria (Surgical Patients): 1. Non-emergent surgical candidate (aneurysm has not ruptured) 2. Patients 21 years of age or older 3. Male or infertile Female 4. Aneurysm >/=4.5 cm in diameter, or 5. Aneurysm >/= twice the normal aortic diameter directly above the aneurysm, or 6. Aneurysm >/= 4.0 cm in diameter and rapidly growing (0.5 cm in 6 months), or 7. Saccular aneurysm > 3.0 cm Inclusion Criteria (Stent Graft Patients) 1. Patient meets all inclusion criteria for surgical candidate 2. Aneurysm starts >/= 10 mm below the most distal main renal artery and the diameter of aorta within that aortic neck segment is not variable 3. Diameter of aortic fixation zone (neck) >/= 22mm and
Expertise, Disease and Conditions: Abdominal Aortic Aneurysm (AAA), Aneurysms, Angioplasty, Aortic Aneurysms, Aortic Stent-Grafts/Endografts, Aortic Surgery, Arterial Aneurysm, Arterial Occlusive Disease, Arterial Ultrasound, Arteriovenous Fistulas (AVF), Atherosclerosis, Atherosclerosis Imaging, Carotid Artery Disease, Carotid Artery Stenosis, Carotid Artery Stenting, Carotid Endarterectomy, Carotid Ultrasound, Cerebrovascular Diseases, Claudication, Deep Vein Thrombosis (DVT), Diabetic Foot Ulcers, Dialysis Access, Endovascular Interventions, Endovascular Stent Grafts, Endovascular Surgery, Endovascular Therapies, Extractional Atherectomy, Femoral Artery Aneurysms, General Vascular Surgery, Limb Salvage Revascularization, Limb Threatening Ischemia, Lower Extremity Angioplasty, Lower Extremity Revascularization, Lower Extremity Stenting, Mesenteric Arterial Insufficiency, Minimally Invasive Endovascular Aneurysm Repair, Minimally Invasive Interventions, Non-Invasive Flow Studies (NIFS), ...
Expertise, Disease and Conditions: Abdominal Aortic Aneurysm (AAA), Aneurysms, Angioplasty, Aortic Aneurysms, Aortic Stent-Grafts/Endografts, Aortic Surgery, Arterial Aneurysm, Arterial Occlusive Disease, Arterial Ultrasound, Arteriovenous Fistulas (AVF), Atherosclerosis, Atherosclerosis Imaging, Carotid Artery Disease, Carotid Artery Stenosis, Carotid Artery Stenting, Carotid Endarterectomy, Carotid Ultrasound, Cerebrovascular Diseases, Claudication, Deep Vein Thrombosis (DVT), Diabetic Foot Ulcers, Dialysis Access, Endovascular Interventions, Endovascular Stent Grafts, Endovascular Surgery, Endovascular Therapies, Extractional Atherectomy, Femoral Artery Aneurysms, General Vascular Surgery, Limb Salvage Revascularization, Limb Threatening Ischemia, Lower Extremity Angioplasty, Lower Extremity Revascularization, Lower Extremity Stenting, Mesenteric Arterial Insufficiency, Minimally Invasive Endovascular Aneurysm Repair, Minimally Invasive Interventions, Non-Invasive Flow Studies (NIFS), ...
Aneurysms outside of the brain.. The most common location for an aneurysm to occur outside of the brain is in the main artery in the stomach-the abdominal aorta. Abdominal Aortic Aneurysms (AAA) can be lethal if not recognized and treated.. The normal size (diameter) of the abdominal aorta is approximately one inch (2.5 cm.) Typically an artery is recognized to have an aneurysm when its diameter increases by 50%, which would be about 1.5 or approximately 4cm from side to side. Arteries behave much like water balloons-that is, the bigger they get, the thinner they get. The thinner they get, the more chance there is of the artery popping or rupturing. A ruptured abdominal aortic aneurysm (AAA) is often fatal as the ruptured artery leads to massive internal bleeding and usually immediate death from exsanguination.. Smaller aneurysms are less likely to rupture than larger ones. Typically, when an aneurysm reaches 5cm, consideration is given to repairing the artery to prevent rupture. The exact ...
TY - JOUR. T1 - Peripheral retinal microaneurysms in chronic leukemia. AU - Jampol, Lee M.. AU - Goldberg, Morton F.. AU - Busse, Bruce. N1 - Funding Information: From the University of Illinois Eye and Ear Infirmary, Chicago, Illinois. This study was supported in part by Postdoctoral Fellowship 1-F22-HL00812-01 from the National Institutes of Health.. PY - 1975/8. Y1 - 1975/8. N2 - Of 25 patients with chronic leukemia, there was clinical evidence of peripheral retinal microaneurysm formation in two of eight patients with chronic lymphocytic leukemia and six of 17 patients with chronic myelogenous leukemia. There was no proliferative retinopathy in any of the 25 patients. An elevated leukocyte count seemed necessary for microaneurysm formation in leukemia, although some patients with elevated counts had no microaneurysms. The prolonged leukocytosis of chronic leukemia can produce peripheral capillary dropout, vascular stagnation, microaneurysm formation, and, rarely, peripheral proliferative ...
Circulatory Failure and Lactic Acidosis Associated with Giant Saphenous Vein Graft Aneurysm, Rick Mooi, Carsten Arnoldussen and Jos le Noble
Results: In our experience, there were 47 males and the mean age was 62 years (16-80). In patients with PAAs and VAAs, technical success with the MFM was 100%. At 30 days, there were no deaths. Initial MFM patency was 97.5% (39/40) with patency of the thrombosed MFM successfully restored. Longer-term follow-up (mean 16±8 months) demonstrated progressive thrombosis and shrinkage of the aneurysm sacs and all side-branches were patent. In patients with aortic aneurysms, technical success was 100%, with no complications and no deaths at 30 days. Longer-term follow-up (8±7 months) demonstrated aneurysm-related survival of 100%, all-cause survival of 83.3%, intervention-free survival of 100% and 100% patency of the side branches. The longest duration for aneurysm sac thrombosis was 18 months. A significant mean diameter reduction was observed at 6 months (17.3 mm for the transversal maximal diameter and 13.83 mm for the antero-posterior diameter) in the TAAA group. In the literature review, there ...
Diagnosis of carotid artery aneurysm (costs for program #275058) ✔ Klinik Im Park ✔ Department of Vascular Surgery ✔ BookingHealth.com
A case of a portal venous aneurysm found incidentally on the staging of high-grade prostate cancer. In this case, the patient was asymptomatic and has not experienced any complications.
I really could use some input on this one. POSTOPERATIVE DIAGNOSIS: 1. Dysplastic pulmonary valve with mass. 2. Coronary artery disease. 3. Large pulm
OBJECTIVES: Medical therapies have not proven to be effective in halting or reversing the progressive dilation of aneurysms. Further, no therapy exists for small aortic aneurysms due to the significant risks of surgical repair. Smooth muscle cells (SMCs) have the ability to produce extracellular matrix (ECM) that is destroyed in the vessel wall during aneurysm formation. We hypothesized that polymeric nanoparticles bearing ascorbic acid (AA) and retinoic acid (RA) will be effective in reducing inflammation and promoting SMC synthesis of the ECM proteins, collagen and elastin, thus inhibiting aneurysm formation in vivo.. METHODS and RESULTS: Block co-polymer nanoparticles made of polyethylene oxide (PEO) and poly(ϵ-caprolactone) (PCL) capable of bearing both hydrophilic (AA) and hydrophobic (RA) drugs were fabricated by the formation of an organic/aqueous bi-phase stable emulsion. The particles were analyzed to ensure proper spherical morphology, nano diameter, and entrapment of drug prior to in ...
In endovascular repair, the aneurysm isnt removed. Instead, a graft is inserted into the aorta to strengthen it. This is done using catheters (tubes) inserted into the arteries; it doesnt involve surgically opening the chest or abdomen. General anaesthesia is used during this procedure.. ​. A catheter is inserted into an artery in the groin (upper thigh) and guided into the aneurysm. Then, using an x-ray to see the artery, the graft (also called a stent graft) is threaded into the aorta to the aneurysm.. ​. The graft is then expanded inside the aorta and fastened in place to form a stable channel for blood flow. The graft reinforces the weakened section of the aorta. This helps prevent the aneurysm from rupturing.. ​. Broomfield Hospital, Chelmsford, Essex - Where Mr Tom. Browne operates, is the only hospital in Britain to have a hybrid theatre where this procedure can be carried out using the most modern facilities. ...
Aortic Aneurysm An aneurysm is a bulge or ballooning in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from the heart to other parts of the body. If an aneurysm grows large, it can burst and cause dangerous bleeding or even death. Most aneurysms are in the infrarenal aorta (aorta below the kidney). The aorta is the largest artery in the body
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Experimental cervical carotid aneurysms in dogs are obliterated with isobutyl-cyanoacrylate ( IBCA ) injected under direct vision into the aneurysm. Reflux of IBCA into the artery was prevented by inflating either a latex or a Silastic balloon in the carotid artery at the level of the neck of the an …
Subclavian artery aneurysms are relatively rare in comparison with other peripheral aneurysms. We report a 65-year-old woman with multiple atherosclerotic aneurysms of the subclavian artery, aortic arch saccular aneurysm and abdominal aortic aneurysm
Splenic artery aneurysm (SAA) is defined as an abnormal dilatation of the splenic artery more than 1 cm in diameter. It was first described on cadavers in 1770 by Beaussier [7]. It accounts for approximately 60 % of all visceral arterial aneurysms [2]. It is the third most common intra-abdominal aneurysm, following aortic and iliac artery aneurysms [3]. SAA is rarely seen with a prevalence of 1 % [1]. It is four times more common in females compared to males [8-10]. Risk factors correlating to the development of SAA include fibromuscular dysplasia, collagen vascular diseases, female gender, history of multiple pregnancies, and portal hypertension, although the pathogenesis is not fully understood [11].. Splenic artery pseudoaneurysms are less prevalent than true SAA. They differ from true SAA in that the dilatation occurs following the disruption of one or more layers of the vessel wall. Splenic artery accounts for the majority of splanchnic pseudoaneurysms. Unlike true SAA, they have a slight ...
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Although pulmonary artery aneurysms are a rare vascular anomaly, they are seen in a wide variety of conditions, such as congenital heart disease, infection, trauma, pulmonary hypertension, cystic medial necrosis and generalized vasculitis. To our kno
Intracranial aneurysm, also known as brain aneurysm, is a cerebrovascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ballooning of the blood vessel. Aneurysms in the posterior circulation (basilar artery, vertebral arteries and posterior communicating artery) have a higher risk of rupture. Basilar artery aneurysms represent only 3%-5% of all intracranial aneurysms but are the most common aneurysms in the posterior circulation. Cerebral aneurysms are classified both by size and shape. Small aneurysms have a diameter of less than 15 mm. Larger aneurysms include those classified as large (15 to 25 mm), giant (25 to 50 mm), and super-giant (over 50 mm). Saccular aneurysms, also known as berry aneurysms, appear as a round outpouching and are the most common form of cerebral aneurysm. Fusiform dolichoectatic aneurysms represent a widening of a segment of an artery around the entire blood vessel, rather than just arising from a side of an arterys ...
A case of ruptured gastroepiploic artery aneurysm associated with thoracic aortic aneurysm is presented. Gastroepiploic artery aneurysms are rare, but the association of visceral artery aneurysm and aortic aneurysm is clinically significant and is emphasized in this report.
Congenital true aneurisms of peripheral arteries especially on the hand are rare and idiopathic. The present case is focused on the multiple aneurysms of a young boy on both radial and ulnar arteries since birth. The clinical indications include painful ulcers on the right middle finger, discoloration and swelling of dorsum of ulnar side of right hand. In addition, patchy necrosis of fifth finger with increased intensity of pain was observed. Here we successfully treated both aneurysms with partial amputation of the digit and the growth of the skin on both sides of the palm was restored by groin flap.
An aneurysm is defined as dilatation of the artery greater than 50% in diameter. Aneurysms are categorized as fusiform or saccular. The saccular aneurysms of the ascending aorta are rarely seen and are usually life-threatening. Excessive use of biologicglue, graft infection, mediastinitis, aortic dissection, atherosclerosis, hypertension, degeneration of a penetrating atherosclerotic ulcer, poorsurgical technique, trauma, fungal infections and previous aortic surgery (presumably due to the cannulation site) are the etiologic risk factors for the development of a false or true aneurysm of the ascending aorta [1]. There are a few reports for saccular aneurysm of the ascending aorta which are following coronary artery bypass grafting surgery. The wall stressis greater in saccular aneurysms rather than fusiform aneurysms. The disruption of the vesse lwall at the cannulation site oral long the aortic suture lines lead to saccular aneurysm.. Theaortic false aneurysm may surrounded and restricted by ...
Left main coronary artery compression by a giant pulmonary artery aneurysm associated with large atrial septal defect and severe pulmonary hypertension ...
Laparoscopic distal pancreasectomy and resection of retro-pancreatic splenic artery aneurysm: preserving the spleen - Chirurgia 2020 December;33(6):328-31 - Minerva Medica - Journals
A splenic artery aneurysm is a situation in which a blood vessel connected to the spleen becomes swollen. Its extremely dangerous...
Portal vein aneurysms are extremely rare, less than 200 cases have been reported until late 2015. They are defined as a portal vein diameter exceeding 19 mm for cirrhotic patients and 15 mm in normal livers. Most patients are asymptomatic, but complications may occur.We report a case of a 68-year-old female admitted for etiological assessment of a portal hypertension revealed by an upper gastro intestinal bleeding, who was incidentally diagnosed with a portal vein aneurysm.
This is a transforming event in cerebrovascular surgery, said Nelson, who has implanted the device in about 75 patients in the U.S.. Large aneurysms, which measure between 10 mm and 25 mm, and giant aneurysms, which are greater than 25 mm in size, are rare, with about 2,000 reported cases each year. There is a greater risk of rupture with giant aneurysms, and they are much more difficult to treat.. Smaller, uniformly shaped aneurysms with small necks attaching them to the artery can be treated by surgically clipping the base of the aneurysm, or by pushing platinum coils into the aneurysms to initiate a clotting reaction. But clipping the base of an large aneurysm is very difficult and extremely risky, and often coils wont fit into an oddly-shaped aneurysm, explained Nelson.. The flexible Pipeline, which resembles a mesh tube, is inserted into the artery from which the aneurysm has developed. It works by cutting off the blood supply to the aneurysm, which, over time, eliminates the aneurysm ...
DISCUSSION. Traumatic arterial injuries have a high mortality rate and lead to severe complications. They can be caused by penetrating or blunt traumas or may be iatrogenic. Injuries can lead to rupture of arteries, hemorrhage, arterial occlusion, dissection and formation of pseudoaneurysms, true aneurysms or arteriovenous fistulas.3 Aneurysms of the superficial temporal artery are rare events and there are currently a total of around 200 cases reported in the literature.4 In 95% of cases, aneurysms of the temporal artery have traumatic origin and form pseudoaneurysms. The remaining 5-8% are congenital aneurysms or have atherosclerotic origin.5,6 A true traumatic aneurysm, involving all three layers of the vessel, is an extremely rare event. It is believed that true aneurysms may develop from a preexisting vascular condition, but this remains uncertain.7 The first case of temporal artery aneurysm was described in 1740 by Thomas Bartolin.2 In 1934, Winslow and Edwards collected 108 cases of ...
Of the 104 aneurysms, 9 (8.7%) had aneurysmal remnant on postoperative angiography. Incomplete clipping was intentionally performed in 4 aneurysms more than 10mm in size and in one basilar tip aneurysm. The remaining 4 aneurysms had unexpected remnant of sac, which was anterior choroidal artery aneurysm in 1 and anterior communicating artery aneurysms projecting superiorly or posterior-superiorly in 3. Thus, the true incidence of residual aneurysm was 3.8% (4/104 aneurysms). Logistic regression analysis showed the size of aneurysm as the only risk factor of residual aneurysm. Occlusion or narrowing of major artery was noted in 4.8%. Even though we had re-adjusted the clip in two cases because of parent arterial narrowing on postoperative angiography, two patients died due to cerebral infarction ...
Rationale: Aneurysm development, progression and rupture are characterised by extensive inflammation, dominated by the infiltration of T-cells, B-cells and macrophages. Recent studies into the pathophysiology of aneurysm wall degradation suggest a close relation between increased mechanical stress and the local activation of infiltrated lymphocytes and macrophages. The non-invasive detection of aneurysm wall inflammation, using 18-fluorodeoxyglucose positron emission tomography (FDG-PET) might therefore provide valuable information on the extend of the disease and could clarify the role of mechanical stress on the propagation of aneurysm wall inflammation.. Objective: Correlation of FDG uptake and in vitro aneurysm wall tensile strength. (primary objective). The effect of aneurysm sac depressurisation, after endovascular aneurysm repair, on aneurysm wall inflammation (secondary objective).. Study design: Observational case series (pilot). Study population: Patients scheduled for conventional ...
Visceral vessel processes are primarily or secondarily included in a multitude of clinical abdominal symptoms, with which the specialist in internal medicine is confronted. The spectrum ranges from more sharply outlined manifestations, such as chronic ischemic bowel disease up to dysfunctional disturbances of blood pressure regulation, such as high-grade renal artery stenosis. Sometimes diseases with prognostic implications, such as arterial aneurysms, are revealed as incidental findings. As a rule the B‑mode and duplex ultrasound can often be complemented by computed tomography (CT) and magnetic resonance imaging (MRI), as in aneurysms or portal vein thrombosis or the indications for subsequent digital subtraction angiography (DSA) and catheter-based therapy can be directly obtained from duplex and Doppler ultrasound ...
Saccular aneurysm growth in a human middle cerebral artery is modeled. The aneurysm growth model was presented in a companion paper by Kroon and Holzapfel (A Model for Saccular Cerebral Aneurysm Growth by Collagen Fibre Remodelling, J. Theor. Biol., in press) and was assessed there for axisymmetric growth. The aneurysm growth model is now evaluated for a more realistic setting. The middle cerebral artery is modeled as a two-layered cylinder, where the layers correspond to the media and the adventitia. An instant loss of the media in a region of the artery wall initiates the growth of the saccular aneurysm. The aneurysm wall is assumed to be a development of the adventitia of the original healthy artery, and collagen is assumed to be the only load-bearing constituent in the adventitia and in the aneurysm wall. The collagen is organized in a number of distinct layers where fibers in a specific layer are perfectly aligned in a certain fiber direction. The production of new collagen is taken to ...
The clinical characteristics of elderly patients with multiple IAs were studied in 481 patients by Inagawa [31]. Patients were divided into two groups: group 1 - 59 years of age or younger and group 2- 60 years of age or older. Of the 481 patients, 136 (28%) had multiple aneurysms. The percentage of patients with multiple aneurysms was 30% for group 1 and 27% for group 2. The rate of multiple aneurysms was significantly less in males than in females (17% versus 31%). Due to the small sample size, no significant difference could be found between the male and female age groups in terms of the number of aneurysms by gender, yet it is important to highlight that there were no male patients reported in that series with 5 aneurysms or more. The only patients in this series reported to have 5 aneurysms or more were females; one patient in group 1 with 5 aneurysms and one with 6 aneurysms, and a single female patient with more than 5 aneurysms in group 2. Comparable findings were reported by Wilson et ...
Legendary rapper Dr. Dre was hospitalized on Tuesday after reportedly suffering a brain aneurysm, which can quickly turn deadly should it rupture. Clipping has been shown to be highly effective, depending on the location, size, and shape of the aneurysm. The work provides guidance on avoiding complications as well as anticipating and managing problems that may arise during surgery. The saccular aneurysm, which poses a high risk of rupture, is clipped. 93 people follow this. Tulane physicians are leaders in research and clinical trials to improve treatment for brain aneurysms and stroke. Brain aneurysm clipping is one of the most common treatments for non-emergency aneurysms. … of 17 . What are the symptoms of a Brain Aneurysm, and how is a Brain Aneurysm diagnosed? More than 50 percent of the patients … Help us improve your search experience.Send feedback. 93 people like this. (NEXSTAR) - Dr. Dre has suffered a brain aneurysm, according to multiple reports. See brain aneurysm stock video ...
Results Inclusions started in July 2014. End of February 2016, 92 patients with 92 aneurysms were included. The expectation is to have inclusions completed end of April 2016. Most patients were females (80/92, 87.0%). All but one patient were mRS 0 or 1 before the treatment.. Among the 92 aneurysms, 22 (23.9%) were aneurysm remnant after a previous treatment and the 70 others (76.1%) were unruptured. Aneurysm locations were internal carotid artery (n = 83, 90.2%), anterior communicating artery (n = 6, 6.5%), and middle cerebral artery (n = 3, 3.3%). Aneurysm size was ,10 mm in 57 aneurysms (62.0%), 10 to 24 mm in 31 aneurysms (33.7%), and ,24 mm in 3 aneurysms (3.3%).. Neck size was ,4 mm in 24/91 aneurysms (26.4%) and , or = 4 mm in 67/91 aneurysms (73.6%).. Placement of the flow diverter was achieved in all cases. Intra-operative events were reported in 7/92 patients (7.6%), including technical problems (n = 3), thromboembolic events (n = 3), and others (n = 1). Postoperative events, ...
About 3 out of 4 abdominal aortic aneurysms dont cause symptoms. An aneurysm may be found by X-ray, computed tomography (CT or CAT) scan, or magnetic resonance imaging (MRI) that was done for other reasons. Since abdominal aneurysm may not have symptoms, its called the silent killer because it may rupture before being diagnosed. Pain is the most common symptom of an abdominal aortic aneurysm. The pain associated with an abdominal aortic aneurysm may be located in the abdomen, chest, lower back, or groin area. The pain may be severe or dull. Sudden, severe pain in the back or abdomen may mean the aneurysm is about to rupture. This is a life-threatening medical emergency. Abdominal aortic aneurysms may also cause a pulsing sensation, similar to a heartbeat, in the abdomen. The symptoms of an abdominal aortic aneurysm may look like other medical conditions or problems. Always see your doctor for a diagnosis. ...
Oftentimes, brain aneurysms are not detected until they rupture or are found during medical imaging tests for other conditions.. If you experience a severe headache or other symptoms of an aneurysm, there are four types of tests your doctor may order to determine if your symptoms are the result of an aneurysm.. At the AdventHealth Neuroscience Institute, our doctors use the following tests to detect an aneurysm: Computed Tomography (CT) Scan. Fast and painless, a CT scan is usually the first test ordered for patients with aneurysm symptoms. A CT scan creates 2D images of the brain and skull - sometimes referred to as slices - using X-rays. Sometimes, a contrast dye is injected into the patients bloodstream before the CT scan to help locate an aneurysm. This is called a CT angiography (CTA) and it produces sharper and more detailed images of the blood flow in the arteries of the brain. A CTA can clearly determine the size, location and shape of both ruptured or unruptured aneurysms. Magnetic ...
|p|Renal artery aneurysm (RAA) occursto focal dilatation of artery secondary to weakness of the arterial intima and media, RAA is a rare condition withan incidence of 0. |/p||p|01 -1%. |/p||p|1R
Archives of cardiovascular diseases - Vol. 104 - N° 5 - p. 363-364 - Iconography : Coexisting renal artery aneurysm and adrenal adenoma in resistant hypertension - EM|consulte
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Treatment. Surgical clipping or coiling techniques are majorly used in the treatment of brain aneurysms. It is essential to note that not all aneurysms are amenable to both forms of treatment. Consulting a neurologist is of extreme importance.. Clipping:. The surgeon reaches the aneurysm by cutting out a portion of the skull (craniotomy) and then locates the injured blood vessel and inserts a clip across the aneurysm. This obstructs blood from entering the aneurysm and then leaking out, or incases of an un-ruptured aneurysm, stunts its growth.. Endovascular Coiling or Coil Embolization:. This treatment approach involves inserting a catheter into the femoral artery (in the patients leg) and steering it through the vascular system, into the brain and finally into the aneurysm. Small platinum coils are lined through the catheter and placed into the aneurysm, jamming blood flow into the aneurysm and preventing a fissure. This minimally invasive procedure can be performed under general ...
An aortic aneurysm is a dilation of a segment of the aorta where the wall of the vessel becomes thin and weak. The most common site involves the abdominal aorta below the arteries to the kidneys. The main risk of an aortic aneurysm is rupture. If the aneurysm ruptures, the chance for survival is very low. If the aneurysm is repaired before rupture, the chance of survival is very good. In general, an abdominal aortic aneurysm should be repaired when it reaches a size of 5 centimeters in diameter. On average, an aortic aneurysm will increase in size 0.5 centimeters per year. A more rapid rate of enlargement might lead us to recommend repair before the aneurysm reaches 5 centimeters. There are currently two acceptable methods used to repair an abdominal aortic aneurysm. The most common method involves making an incision in the abdomen and directly exposing the aneurysm. The involved section of aorta is completely replaced with a prosthetic fabric tube. This operation is highly effective at reducing ...
Brain aneurysm repair is a surgical procedure used to treat a bulging blood vessel in the brain thats at risk of rupturing or tearing open. In general, most brain aneurysms are small, rarely cause symptoms and have a very low risk of rupture. Feb 8, 2016 - My precious friend Peggy lost her life at 58 years of age to a Brain Aneurysm. The brain has very high oxygen and nutrient requirements and the flow of blood to the brain is critical. Symptoms may occur if the aneurysm is large or if it causes pressure on the structures, such as nerves or meninges (the three-layered covering over the brain), around it. About brain aneurysms. Brain aneurysm repair is surgery to correct an aneurysm. top. Researchers found that straining to defecate can cause over a seven-fold increase in the risk of a brain bleed. Women are more likely than men to develop brain aneurysms. Unruptured intracranial aneurysms (UIAs) are relatively common in the general population, found in and estimated … However, a brain ...
Abdominal aortic aneurysm (AAA) is a potentially fatal disease and survival rate is very low when rupture occurs. Experimental models related with abdominal aortic aneurysm are performed on intact and ruptured aneurysm (RAAA) models. By using AAA models; complex mechanisms of aneurysm formation, aneurysm progression, chance of rupture, preventative and treating methods are researched. Most commonly used methods for creating aneurysm are utilization of transgenic or knockout animals; intra/extraluminal pharmacologic treatments such as elastase, calcium chloride or angiotensin II; hyperlipidemic diet application and surgical interventions such as xenograft, stenosis or graft. Pathogenesis of aneurysm is predominantly examined on rodents whereas studies aimed at development of treatment modalities such as surgical or endovascular interventions are predominantly performed on large animals like rabbit, porcine or dog. Experimental studies modeling aneurysm rupture (RAAA) simulate shock (total hypoperfusion)
110 Francis St. Boston, MA 02215 P 617-632-9940. An aneurysm is an outward bulging, likened to a bubble or balloon, caused by a localized, abnormal, weak spot on a blood vessel wall. A ruptured brain aneurysm is a medical emergency and the clinical team will move quickly. The OHSU Brain Institute is a national leader in diagnosing and treating brain aneurysms. It involves opening the skull by removing a small piece of bone to have open access to locate the aneurysm. An aneurysm in the brain is a weak area in an artery in the brain that bulges out and fills with blood. The Neurological Institute is a leader in treating and researching the most complex neurological disorders and advancing innovations in neurology. An aneurysm in the brain is a weak area in an artery in the brain that bulges out and fills with blood. The neurosurgeon removes a section of your skull to access the aneurysm and locates the blood vessel that feeds the aneurysm. Some unruptured aneurysms need to be surgically repaired, ...
The red arrow in both illustrations shows an aneurysm (weak spot in vascular wall) of the right front cerebral artery (A. carotis interna right, front view). For the safe treatment of this aneurysm, a tubular metal mesh (stent) was first inserted in the vascular wall and precisely placed above the mouth of the aneurysm. The almost invisible stent is marked with green dotted lines on the right part of the illustration. On both of its ends, it is marked with visible dark markers which the green arrows are pointing out. The purpose of a stent in the treatment of aneurysms is to narrow the mouth of the aneurysm with a mesh. Then, the platinum coils can be inserted safely in the aneurysm through the mesh. The platinum coils seal the aneuryms and can, in difficult cases, be better held in the aneurysm due to the underlying stent. The platinum coils are inserted in the aneurysm via a very fine, tiny plastic tube (so-called micro-catheter) through the mesh. In this case, the path of the micro-catheter ...
Background and Purpose: Although various studies have been performed, the mechanism leading to the rupture of cerebral aneurysms has not yet been elucidated. Accurate assessment of cerebral aneurysm rupture risk is important because current treatments carry a small but significant risk that can exceed the small natural risk of rupture. Various hemodynamic parameters have been proposed for estimating the risk of rupture of cerebral aneurysms, with limited success. We evaluated several hemodynamic parameters to predict rupture in a dataset of initially unruptured aneurysms in which some aneurysms ruptured during follow-up observation.. Methods: Geometry of the aneurysm and blood vessels was extracted from CTA images and analyzed using a mathematical formula for fluid flow under pulsatile blood flow conditions. Fifty side-wall internal carotid posterior communicating artery (ICA-pcom) aneurysms and fifty middle cerebral artery (MCA) bifurcation aneurysms of medium size were investigated for Energy ...
The aorta is the largest artery in your body, and it carries blood away from your heart. Your aorta runs through your chest, where it is called the thoracic aorta. When it reaches your abdomen, it is called the abdominal aorta. The abdominal aorta supplies blood to the lower part of the body. Just below the abdomen, the aorta splits into two branches that carry blood into each leg. An aneurysm is a weakened and bulging area of a blood vessel. If an aneurysm ruptures, it causes internal bleeding with a less than one in five chance of survival. Abdominal aortic aneurysms are associated with more than 15,000 deaths per year in the United States. In a large study performed by the Veterans Administration, abdominal aneurysms were found in four percent of men and one percent of women over the age of 50 years. The highest risks for aneurysms are in men, active and former smokers and family history of aneurysms. The risk of rupture increases sharply as the aneurysms grow. Screening for aneurysms and ...
Arteries are the tubes carrying blood from the heart to the rest of the body. An aneurysm is a weak area in the wall of an artery that can bulge like a balloon, and can cause problems related to either bleeding or blood clotting. Aneurysms can occur throughout the body, but one of the most common locations is in the aorta. The aorta is the largest artery of the body, carrying blood directly from the heart through the chest and abdomen to the rest of the body.. Aneurysms of the aorta are worrisome because they can burst or rupture resulting in excessive bleeding and usually causing death. A small aneurysm may require no immediate treatment other than watchful waiting. The aneurysm should be monitored by a vascular specialist who will order periodic ultrasound exams or other tests to make sure that the aneurysm is not growing. Many times aneurysms remain small and pose no significant problems.. If an aneurysm reaches a certain size between 5 and 5.5 cm, your healthcare provider may refer you for ...
Results The aneurysm growth probability was 2.6±0.1% per year. The rate of unexpected aneurysm rupture before treatment was 0.24% per year (95% CI 0.17% to 2.40%). The calculated rate of aneurysm rupture after growth was 6.3% per aneurysm-year (95% CI 1% to 22%). Aneurysms located in the posterior circulation and aneurysms with lobulation were more likely to grow. Females or patients suffering hypertension were more likely to have an aneurysm growing. The probability of aneurysms growth increased with the size of the dome and was proportional to the number of aneurysms diagnosed in a patient. ...
Aneurysmal blood vessels are prone to rupture under normal blood pressure and flow due to the special mechanical properties that make them weaker. To better understand this phenomenon, we can first look at healthy arterial vessels which exhibit a J-shaped stress-strain curve with high strength and high toughness (for a biomaterial in vivo).[34] Unlike crystalline materials whose linear elastic region follows Hookes Law under uniaxial loading, many biomaterials exhibit a J-shaped stress-strain curve which is non-linear and concave up.[34] The blood vessel can be under large strain, or the amount of stretch the blood vessel can undergo, for a range of low applied stress before fracture, as shown by the lower part of the curve. The area under the curve up to a given strain is much lower than that for the equivalent Hookean curve, which is correlated to toughness. Toughness is defined as the amount of energy per unit volume material can absorb before rupturing. Because the amount of energy released ...
These results show that aneurysm treatment with CAP has a higher likelihood of producing arterial thrombosis and a lower likelihood of obliterating the aneurysm than aneurysm treatment with GDC. If CAP is allowed to overflow into the feeding or branch artery, thrombosis of these arteries generally occurs. If it remains in the aneurysm, there is some chance of the CAP dissolving and the aneurysm reforming. This may be prevented by mixing the CAP with less dimethyl sulfoxide (H. Ohmoto, personal communication, March 1997). The problems with GDC tend to be the opposite. There were no arterial thromboses, despite the coils protruding into the arterial lumen to some extent in some cases. The aneurysm, however, only obliterated and filled with solid tissue approximately 63% of the time.. Previous studies of CAP have produced more favorable results. In two experimental studies, 29 sidewall aneurysms were able to be completely obliterated in dogs with a risk of arterial occlusion of approximately 13% ...
Photo: MriMan/Shutterstock.com news-medical.net A brain aneurysm is a diseased or abnormal dilatation of the cerebral arteries at a weak spot. These typically thin-walled aneurysmal sacs of blood may continue to enlarge because of the force of the arterial pulsatile flow. A ruptured aneurysm leads to a subarachnoid hemorrhage, an SAH. Skewed Gender Representation in Aneurysm Formation Worldwide, cerebral aneurysms occur in 3.2% of the global population, with the mean age of presentation being 50 years. Scientists estimate that over 6 million Americans have an unruptured aneurysm in the brain, and about 30,000 of them rupture each year. In 40 of each hundred ruptures, the patient dies. Brain aneurysms are more common in females by about 60% overall, and more especially in the postmenopausal age group, where the risk is more than twice as high. This has prompted the hypothesis that sex hormones are involved in the formation of aneurysms. This may be the reason, some say, that women are protected
Celiac trunk aneurysm is a rare finding. Most patients are symptomatic at the time of diagnosis but occasionally such aneurysms are detected incidentally during diagnostic imaging for other diseases. Since the anomaly was first described in 1745(1) fewer than 180 cases have been reported in the international medical literature.(2) Atherosclerotic aneurysms of the celiac artery (CAAs) comprise approximately 4-6% of all visceral aneurysms.(3-4) Early surgical intervention has reduced the rupture rate to 7% in recent years.(5) Early recognition and intervention are crucial because the operative mortality rate associated with ruptured celiac artery aneurysms is around 40%.(6) There are no absolute size criteria associated with significant rates of CAA rupture, but 2 cm appears to warrant intervention in most series.(7-8) Surgical reconstruction, surgical ligation, intraluminal embolization, thrombin injection and endovascular grafting have all been reported with success/9
Experimental saccular aneurysm models are necessary for testing novel surgical and endovascular treatment options and devices before they are introduced into clinical practice. Furthermore, experimental models are needed to elucidate the complex aneurysm biology leading to rupture of saccular aneurysms. Several different kinds of experimental models for saccular aneurysms have been established in different species. Many of them, however, require special skills, expensive equipment, or special environments, which limits their widespread use. A simple, robust, and inexpensive experimental model is needed as a standardized tool that can be used in a standardized manner in various institutions. The microsurgical rat abdominal aortic sidewall aneurysm model combines the possibility to study both novel endovascular treatment strategies and the molecular basis of aneurysm biology in a standardized and inexpensive manner. Standardized grafts by means of shape, size, and geometry are harvested from a ...
These data demonstrate not only that the assigned cohorts were the same as in our publication but also that the actually treated aneurysms had similar outcomes. Despite the inclusion of more-difficult aneurysms that were assigned to endovascular coiling but were actually treated with clipping, plus those actually treated with clipping because of large hematomas, the results demonstrate a slight, although statistically nonsignificant, benefit to clipping. Thus, from a pool of 314 randomized patients, all those randomized to undergo clipping (with the exception of a single patient) had their aneurysms actually clipped, and in addition, 36% of cross-over patients who were randomized to undergo coiling had their aneurysms actually clipped. This finding emphasizes that the use of clipping to treat all anterior circulation aneurysms could achieve results equal to those for the selected anterior circulation coiling treatment cohort.. The lack of middle cerebral artery (MCA) aneurysms in the cohorts ...
A powerful type of artificial intelligence known as deep learning can help physicians detect potentially life-threatening cerebral aneurysms on CT angiography, according to a study published in the journal Radiology.. Cerebral aneurysms are weakened areas of blood vessels in the brain. Left untreated, they can leak or rupture, with sometimes fatal results. Detection and characterization of these aneurysms are critical, as the risk of rupture depends on the size, shape and location of the aneurysm.. CT angiography is usually the first choice for evaluating cerebral aneurysms. The exam is highly accurate, but cerebral aneurysms can be overlooked on the initial assessment due to their small size and the complexity of the blood vessels in the brain.. In our daily work we are always faced with cases in which some important lesions have been missed by the human eye, said study senior author Xi Long, Ph.D., from the Department of Radiology at Tongji Medical Colleges Union Hospital in Wuhan, China. ...
An aneurysm is a localized ballooning in an artery due to a weak portion of the vessel wall. A ruptured aneurysm can cause hemorrhaging that is severely debilitating or fatal. The two most medically significant aneuryms occur at the base of the brain (intracranial aneurysms) and in the artery coming out of the heart (aortic aneurysms) Wikipedia. The most common type of aortic aneurysm is abdominal aortic aneurysm (AAA). Wikipedia In 2014, a study found novel region on chromosome 7, near HDAC9, was associated with IA (rs10230207; P=4.14×10−8). See Stroke Journal 2014;45:3194-3199 In 2013, a meta-analysis confirmed 4 loci with robust association after random effects / sensitivity analysis. rs700651, rs9298506, rs10958409 and rs1333040. PMC3716358 As of 2010, at least 6 gene regions are known to be associated with increased risk for intracranial aneurysms in multiple ethnic groups, usually with multiple SNPs per region. [PMID 20364137], 23andMe blog ...
TY - JOUR. T1 - Management of complex, surgically intractable intracranial aneurysms. T2 - The option for intentional reconstruction of aneurysm neck followed by endovascular coiling. AU - Chen, Lukui. AU - Kato, Yoko. AU - Sano, Hirotoshi. AU - Watanabe, Sadayoshi. AU - Yoneda, Minoru. AU - Hayakawa, Motoharu. AU - Sadato, Akiyo. AU - Irie, Keiko. AU - Negoro, Makoto. AU - Karagiozov, Kostadin L.. AU - Kanno, Tetsuo. PY - 2007/5/1. Y1 - 2007/5/1. N2 - Background: A limited series of patients with aneurysm were reviewed retrospectively to analyze strategies for integrating microsurgical and endovascular techniques in the management of complex, surgically intractable aneurysms. Methods: Four patients were managed in Fujita Health University with a multimodality approach: intentional reconstruction of the aneurysm neck followed by endovascular coiling. Results: A total of 5 aneurysms were treated, of which 3 were large or giant in size, and 3 were fusiform or multilobulated. Complete angiographic ...
The physiopathology that leads to the development of aneurysms and their subsequent rupture has been partially explained by hemodynamic components in a multitude of studies; high wall shear stress seems to play the predominant role in high‐flow aneurysm, whereas high intra‐aneurysmal pressure and low‐flow stasis are the main factors in low‐flow aneurysms.25 It is hypothesized that the lower the flow, the higher the degenerative changes, and the higher the risk of rupture. Ruptured aneurysms (RAs) can have areas with higher than average and more concentrated wall shear stress with smaller impingement zones (where the inflow jet impacts against the aneurysm wall) when compared with unruptured ones.26, 27, 28 Furthermore, it is reported that hemodynamic variables are dependent on the morphology of the aneurysm and on its feeding vessels.25, 29, 30 Chronic hypertension seems to play a major role in aneurysm formation since it is more prevalent in patients with CAs compared to the general ...
BACKGROUND Intraprocedural rupture and thrombus formation are serious complications during coiling of ruptured intracranial aneurysms, and they more often occur in patients with anterior communicating artery (ACoA) aneurysms. OBJECTIVE To identify independent predictors of intraprocedural rupture and thrombus formation during coiling of ruptured ACoA aneurysms. METHODS Between January 2008 and February 2015, 254 consecutive patients with 255 ACoA aneurysms were treated with coiling. We retrospectively reviewed intraoperative angiograms and medical records to identify intraprocedural rupture and thrombus formation, and re-measured aneurysm morphologies using CT angiography images. Multivariate logistic regression models were used to determine independent predictors of intraprocedural rupture and thrombus formation. RESULTS Of the 231 patients included, intraprocedural rupture occurred in 10 (4.3%) patients, and thrombus formation occurred in 15 (6.5%) patients. Patients with smaller aneurysms more
The heart, including coronary artery aneurysms, ventricular aneurysms, aneurysm of sinus of Valsalva, and aneurysms following ... Without treatment, these aneurysms will ultimately progress and rupture. Infection. A mycotic aneurysm is an aneurysm that ... Wikimedia Commons has media related to Aneurysms. Look up aneurysm in Wiktionary, the free dictionary. Brain aneurysm and ... The aorta, namely aortic aneurysms including thoracic aortic aneurysms and abdominal aortic aneurysms. The brain, including ...
An aneurysm is a localized, blood-filled balloon-like bulge in the wall of a blood vessel. Aneurysm may also refer to: Aneurysm ... Look up aneurysm in Wiktionary, the free dictionary. ... band), an Italian metal band "Aneurysm" (song), by American ... rock band Nirvana This disambiguation page lists articles associated with the title Aneurysm. If an internal link led you here ...
A cirsoid aneurysm, also referred to as an arteriovenous hemangioma is the dilation of a group of blood vessels due to ... Cirsoid aneurysms appear as nodules or papules. Histologically, they are composed of both thick- and thin-walled blood vessels ...
... because mycotic aneurysms are not due to a fungal organism. Mycotic aneurysms account for 2.6% of aortic aneurysms. For the ... An infected aneurysm is an aneurysm arising from bacterial infection of the arterial wall. It can be a common complication of ... However, mycotic aneurysm is still used for all extracardiac or intracardiac aneurysms caused by infections, except for ... Experience with infected aneurysms of the abdominal aorta. Arch Surg. 1975;110:1281-1286. Mycotic (Infected) Aneurysm Caused by ...
Aortic aneurysms are classified by their location on the aorta.[citation needed] An aortic root aneurysm, or aneurysm of the ... or descending aneurysms. Abdominal aortic aneurysms, "AAA" or "Triple A", the most common form of aortic aneurysm, involve that ... patients with large aneurysms are likely to have continued aneurysm growth and risk of aneurysm rupture without surgical repair ... Rarely, clotted blood which lines most aortic aneurysms can break off and result in an embolus. Aneurysms cannot be found on ...
Aneurysm official website Aneurysm at Encyclopaedia Metallum "Aneurysm (ITA-1) - discography, line-up, biography, interviews, ... In June 2005, Aneurysm began recording "Shades", a 15 tracks concept in which Hansi Kürsch from Blind Guardian appeared as ... Aneurysm was an Italian industrial metal band, formed in 1994 in Verona. Although initially influenced by 1980s thrash metal ... Official website Aneurysm at Myspace (All articles with dead external links, Articles with dead external links from October ...
As with any aneurysm, a Rasmussen's aneurysm is at increased risk of rupture and bleeding into the lungs.[citation needed] ... Rasmussen's aneurysm is a pulmonary artery aneurysm associated with a cavitary lung lesion. It was originally described by ... Pulmonary artery aneurysms are rare. Historically, pulmonary artery aneurysms were believed to be a common cause of hemoptysis ... Even when the pulmonary aneurysm is present, the actual bronchial bleeding may be from the bronchial artery, rather than from ...
Cerebral aneurysms are classified both by size and shape. Small aneurysms have a diameter of less than 15 mm. Larger aneurysms ... Basilar artery aneurysms represent only 3-5% of all intracranial aneurysms but are the most common aneurysms in the posterior ... The risk of rupture from a cerebral aneurysm varies according to the size of an aneurysm, with the risk rising as the aneurysm ... Aneurysm means an outpouching of a blood vessel wall that is filled with blood. Aneurysms occur at a point of weakness in the ...
Ventricular aneurysms are one of the many complications that may occur after a heart attack. The word aneurysm refers to a ... Ventricular aneurysms usually grow at a very slow pace, but can still pose problems. Usually, this type of aneurysm grows in ... Also, blood clots may form on the inside of ventricular aneurysms, and form embolisms. If such a clot escapes from the aneurysm ... February 2009). "Diagnosing left ventricular aneurysm from pseudo-aneurysm: a case report and a review in literature". J ...
Tracks like "Aneurysm" were produced with this intention in mind. A second studio version of "Aneurysm" was recorded by Miti ... "Aneurysm" was ranked at number nine. A live version of "Aneurysm," recorded on December 28, 1991, at Del Mar Fairgrounds in Del ... "Aneurysm" is composed in the key of B minor, while Kurt Cobain's vocal range spans one octave and five notes, from a low of A4 ... "Aneurysm" is a grunge song that lasts for a duration of four minutes and thirty-five seconds. According to the sheet music ...
Aneurysms with an internal diameter > 8 mm have poorer outcomes, since these aneurysms can be occluded and be associated with ... The prognosis of coronary artery aneurysm is dependent on its diameter. The smaller the aneurysm the better the prognosis. ... Coronary artery aneurysm is an abnormal dilatation of part of the coronary artery. This rare disorder occurs in about 0.3-4.9% ... Aneurysm Coronary artery ectasia Kawsara, Akram; Núñez Gil, Iván J.; Alqahtani, Fahad; Moreland, Jason; Rihal, Charanjit S.; ...
Patients with aneurysms require elective repair of their aneurysm when it reaches a diameter large enough (typically greater ... May 2011). "A randomized controlled trial of endovascular aneurysm repair versus open surgery for abdominal aortic aneurysms in ... "The use of fenestrated and branched endovascular aneurysm repair for juxtarenal and thoracoabdominal aneurysms: a systematic ... debris from the aneurysm that dislodges and travel into other arteries). Lastly, the repair is also indicated for aneurysms ...
These are less common than abdominal aneurysms. Small aneurysms generally pose no threat. However, aneurysms increase the risk ... Aneurysm may also rupture. It is fragile and may burst under stress. The rupture of an aortic aneurysm is a catastrophic, life- ... If the aneurysm is large, a monitoring ultrasound may need to occur every 6 to 12 months. If the aneurysm is small, monitoring ... Inflammatory aortic aneurysm (IAA), also known as Inflammatory abdominal aortic aneurysm (IAAA), is a type of abdominal aortic ...
A popliteal artery aneurysm is a bulging (aneurysm) of the popliteal artery. A PAA is diagnosed when a focal dilation greater ... Unlike aneurysms elsewhere in the body, the typical course of PAAs is to embolize and produce ischaemia, rather than to ... The cause of these aneurysms is unknown, but they are more common in older people and men and occur in both legs about 50% of ... In some 60% of cases, the popliteal aneurysm presents as a palpable pulsatile mass at the level of the knee joint. Doppler ...
Charcot-Bouchard aneurysms are aneurysms of the brain vasculature which occur in small blood vessels (less than 300 micrometre ... Charcot-Bouchard aneurysms are aneurysms in the small penetrating blood vessels of the brain. They are associated with ... Charcot-Bouchard aneurysms are a common cause of cerebral hemorrhage. Retinal microaneurysms are seen in conditions like ... Charcot-Bouchard aneurysms are named for the French physicians Jean-Martin Charcot and Charles-Joseph Bouchard. Bouchard ...
... fungal aneurysm, spirochetal aneurysm, infested or amebic aneurysm, viral aneurysm and phytotic aneurysm, according to the ... An infectious intracranial aneurysm (IIA, also called mycotic aneurysm) is a cerebral aneurysm that is caused by infection of ... The terms infectious aneurysm and infective aneurysm are flawed because they imply that the aneurysm itself is the infecting ... It also accurately describes the congenital or berry aneurysm that has become secondarily infected. The terms septic aneurysm ...
A thoracic aortic aneurysm is an aortic aneurysm that presents primarily in the thorax. A thoracic aortic aneurysm is the " ... Thoracic aneurysms are less common than an abdominal aortic aneurysm. However, a syphilitic aneurysm is more likely to be a ... Thoracic Aortic Aneurysm at eMedicine Aneurysms: Aneurysms and Aortic Dissection at Merck Manual of Diagnosis and Therapy Home ... Aneurysms in the ascending aorta may require surgery at a smaller size than aneurysms in the descending aorta. Treatment may be ...
In those with an aneurysm less than 5.5 cm, the risk of rupture in the next year is below 1%. Among those with an aneurysm ... Two modes of repair are available for an AAA: open aneurysm repair, and endovascular aneurysm repair (EVAR). An intervention is ... The vast majority of aneurysms are asymptomatic. However, as the abdominal aorta expands and/or ruptures, the aneurysm may ... Alternative less often used methods for visualization of an aneurysm include MRI and angiography.[citation needed] An aneurysm ...
... is an autosomal dominant disorder of large arteries. There is an association between familial ... In the aorta, this can result in the formation of a fusiform aneurysm. There is also increased risk of aortic dissection.[ ... GeneReview/NCBI/NIH/UW entry on Thoracic Aortic Aneurysms and Aortic Dissections v t e (Articles with short description, Short ... thoracic aortic aneurysm and Marfan syndrome as well as other hereditary connective tissue disorders. A degenerative breakdown ...
The long-term data for unruptured aneurysms are still being gathered. Cerebral aneurysm Subarachnoid hemorrhage AJNR Am J ... given that the rebleed rate of coiled aneurysms appears to be 8 times higher than that of clipping treated aneurysms in this ... ISAT sought to measure outcomes of cerebral aneurysm patients at 2 and 12 months using a type of a Rankin scale.: 114 The study ... The International Subarachnoid Aneurysm Trial (ISAT) was a large multicentre, prospective randomised clinical medical trial, ...
Aortic aneurysm Thoracic aortic aneurysm Abdominal aortic aneurysm Topi, Bernard; John Jinu (2012). "An uncommon cause of a ... Aneurysms may affect the right (65-85%), non-coronary (10-30%), or rarely the left (< 5%) coronary sinus. These aneurysms may ... A ruptured aneurysm typically leads to an aortocardiac shunt and progressively worsening heart failure. An aneurysm of the ... Aneurysm of the aortic sinus, also known as the sinus of Valsalva, is a rare abnormality of the aorta, the largest artery in ...
... are flesh-colored solitary lesions, resembling an intradermal nevus, which may suddenly grow larger and ...
"Familial thoracic aortic aneurysm and dissection: MedlinePlus Genetics". "Familial thoracic aortic aneurysm and aortic ... Familial thoracic aortic aneurysm and aortic dissection is a very rare vascular genetic disorder, it's characterized by ... "Thoracic Aortic Aneurysm & Aortic Dissection". Guo, Dong-Chuan; Regalado, Ellen S.; Minn, Charles; Tran-Fadulu, Van; Coney, ... This disorder is the cause of 20% of thoracic aortic aneurysms Some families affected by this condition have shown mild ...
Hereditary angiopathy with nephropathy, aneurysms and muscle cramps syndrome is a rare genetic, multisystemic, COL4A1-related ... "Hereditary Angiopathy with Nephropathy, Aneurysms, and Muscle Cramps Syndrome (COL4A1 Single Gene Test) , Fulgent Genetics". " ... aneurysms_and_muscle_cramps "Orphanet: HANAC syndrome". (All articles with bare URLs for citations, Articles with bare URLs for ... aneurysms, and muscle cramps syndrome , Genetic and Rare Diseases Information Center (GARD) - an NCATS Program". web.archive. ...
April 27 - Iara Riça, 56, actress and voice actor (The Powerpuff Girls, X-Men: Evolution); aneurysm. May 4 - Paulo Gustavo (Vai ...
Common types of aneurysm include abdominal aortic aneurysm, thoracic aortic aneurysm and intracranial aneurysm. Most types of ... An aneurysm is a localized enlargement of arteries, characterized by a balloon-like bulge. It results from the abnormal ... D. (2014). "Aneurysm". AccessScience. doi:10.1036/1097-8542.034100. Cooke, John P; Marshall, Janice M (3 September 2016). " ... Mironov, A (20 July 2009). "026 Pathogenetic factors and management of distal dissecting brain aneurysms". Journal of ...
Bret P Nelson (October 1, 2015). "Thoracic Aneurysm". Medscape. Retrieved April 16, 2017. Wolak, Arik; Gransar, Heidi; Thomson ... whereas a diameter greater than 4.5 cm is generally considered to be a thoracic aortic aneurysm. Still, the average diameter in ...
ISBN 978-1-4471-1199-3. Kırali, Kaan; Gunay, Deniz (2017). "2. Isolated aortic root aneurysms". In Kırali, Kaan (ed.). Aortic ... Aneurysm. BoD - Books on Demand. p. 29. ISBN 978-953-51-2933-2. Yankah, A Charles (June 2002). "Forty Years of Homograft ...
It can also refer to the artery in which an aneurysm has occurred. "Parent artery". medilexicon. Retrieved 20 January 2017. " ...
Lindholt JS, Juul S, Fasting H, Henneberg EW (Apr 2005). "Screening for abdominal aortic aneurysms: single centre randomised ... Bret P Nelson (2015-10-01). "Thoracic Aneurysm". Medscape. Retrieved 2017-04-16. Wolak, Arik; Gransar, Heidi; Thomson, Louise E ... "Aortic Aneurysm Screening in a High-Risk Population: A Non-Contrast Computed Tomography Study in Korean Males with Hypertension ...
Learn about aortic aneurysms, a balloon-like bulge in the aorta that can dissect or rupture. ... Other Types of Aneurysms Aneurysms can happen in other parts of your body. A ruptured aneurysm in the brain can cause a stroke ... Abdominal Aortic Aneurysms An abdominal aortic aneurysm happens below the chest. Abdominal aortic aneurysms happen more often ... Thoracic Aortic Aneurysms A thoracic aortic aneurysm happens in the chest. Men and women are equally likely to get thoracic ...
An aneurysm is a bulge in the wall of an artery and can develop and grow for years without causing any symptoms. Learn about ... Aneurysms also can happen in arteries in the brain, heart and other parts of the body. If an aneurysm in the brain bursts, it ... Aneurysms can develop and become large before causing any symptoms. Often doctors can stop aneurysms from bursting if they find ... They use imaging tests to find aneurysms. Often aneurysms are found by chance during tests done for other reasons. Medicines ...
... serial screening for intracranial aneurysms should be considered in adults with at least 2 first-degree relatives with ... Five (3%) of 188 individuals without a history of aneurysms and with 2 negative screens had a de novo aneurysm on a follow-up ... history of aneurysms (OR, 3.9; 95% CI, 1.2 - 12.7), and high familial burden of aneurysms (OR, 3.5; 95% CI, 1.6 - 8.1). ... The researchers identified aneurysms in 51 (11%) of 458 individuals at first screening, in 21 (8%) of 261 at second screening, ...
... including coronary artery aneurysm (CA), in Kawasaki disease (KD), because the blood concentration of TNF-alpha is higher in ... Infliximab treatment for refractory Kawasaki disease with coronary artery aneurysm Circ J. 2008 May;72(5):850-2. doi: 10.1253/ ... including coronary artery aneurysm (CA), in Kawasaki disease (KD), because the blood concentration of TNF-alpha is higher in ...
Small aneurysms, large aneurysms, giant aneurysma, saccular aneurysms, berry aneurysms, fusiform neurysms are aneurysms without ... aneurysm rupture, aneurysm clips and applying forceps, self retaining retractor, basilar aneurysm, multiplex aneurysm, ... intracranial aneurysms, cerebral aneurysm, saccular or berry aneurysm, cerebrovascular disorder , cerebral artery, dilation of ... ophtalmic artery aneurysm, carotid siphon aneurysm, C4 segmental aneurysm, posterior communicating artery, chiasmatic cistern, ...
base on my research the pathophysiology is aaneurysm disease,.,
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By definition, an aneurysm is a localized or diffuse dilation of an artery with a diameter at least 50% greater than the normal ... encoded search term (Thoracic Aortic Aneurysm) and Thoracic Aortic Aneurysm What to Read Next on Medscape ... Thoracic Aortic Aneurysm Guidelines. Updated: Mar 13, 2023 * Author: Elaine Tseng, MD; Chief Editor: Mary C Mancini, MD, PhD, ... Treatment of aneurysm of transverse aortic arch. J Thorac Cardiovasc Surg. 1979 Sep. 78 (3):383-93. [QxMD MEDLINE Link]. ...
Dre reportedly suffers brain aneurysm, remains in ICU. Hip-hop icon Dr. Dre is at Cedars Sinai Medical Center in Los Angeles ...
What is a stroke, what is an aneurysm, and how are they connected? Find out more about the risk factors, how to recognize the ... Strokes and aneurysms are alike in that they both affect the brain and they have similar effects on the body. ... Aneurysms vary in shape, size, and location.. Aneurysms can affect any blood vessel. The most important aneurysms affect the ... What is an aneurysm?. An aneurysm is a bulge in an artery. It bulges because of a weakness in an artery wall. This makes the ...
An aneurysm is a bulging, weakened area in the wall of a blood vessel, resulting in an abnormal widening or ballooning. ... What is a brain aneurysm?. An aneurysm in the brain (also called a cerebral aneurysm or an intracranial aneurysm) is a bulging ... Symptoms and causes of a brain aneurysm. Symptoms that may occur with aneurysms in the brain, and their causes may include, but ... it takes many years for aneurysms to grow. An aneurysm grows because the pounding of the blood in this weak spot expands the ...
Thoracic aortic aneurysm, Marfan syndrome, Aneurysm, Renal artery stenosis, Popliteal aneurysm, Aortic dissection, ... rtic aneurysm repair, Fistulogram, Thrombolysis, Carotid angioplasty and stenting, Thoracic aortic aneurysm surgery, Varicose ... Abdominal aortic aneurysm, Vascular malformation, Critical limb ischemia, Venous aneurysm, Deep vein thrombosis, Venous ... See a list of publications about aortic aneurysms by Mayo Clinic doctors on PubMed, a service of the National Library of ...
Two patients sustained a subarachnoid haemorrhage secondary to radiation-induced vasculopathy and associated aneurysm. A 65- ... Intracranial aneurysm formation following radiotherapy Br J Neurosurg. 1993;7(5):575-9. doi: 10.3109/02688699308995083. ... Three-and-a-half years later, she suffered a subarachnoid haemorrhage secondary to a giant aneurysm arising from the middle ... Angiography following his subarachnoid haemorrhage revealed a distal right middle cerebral artery aneurysm that was not visible ...
Three aneurysms exhibited hemorrhage, one with type Ⅲ and two with type Ⅳ pattern. The two aneurysms with type Ⅳ recurrence ... Aneurysm recurrence patterns were classified as: type Ⅰ, enlargement of aneurysm neck; type Ⅱ, recurrent cavity within the coil ... Results Of the 173 aneurysms included in the study (mean follow-up period, 32 months; range, 6-99 months), 22 (13%) recurred ... Conclusions We recommend prompt re-treatment for aneurysms recurring with type Ⅲ or Ⅳ patterns, as such patterns were ...
Aneurysms can occur in any blood vessel, but the most dangerous aneurysms are those that form in the aorta or the arteries in ... An aneurysm is a bulge in the wall of a blood vessel caused by the weakening of the vessel wall. ... An aneurysm is a bulge in the wall of a blood vessel caused by the weakening of the vessel wall. Aneurysms can occur in any ... Not specifically, but smoking in general increases the risk or aneurysms. Thanks! Were glad this was helpful.. Thank you for ...
... why and how endovascular grafting is performed for aneurysms plus risks, side effects and recovery from the procedure from the ... Learn more about endovascular grafting and repair for aneurysms (aka EVAR, TEVAR or TA-EVAR), ... The size of the aneurysm, in particular its diameter. *How fast the aneurysm is growing, in particular, rapid aneurysm growth ( ... How are aortic aneurysms treated?. The best method to repair an aneurysm depends upon several factors, including the location ...
The Brain Aneurysm Institutes team of specialists works together to develop the best treatment plan for patients, guided by ... Family history of aneurysm. Treatments for Brain Aneurysm. Watchful Waiting. If an aneurysm has not ruptured, and it is very ... If the base of the aneurysm is wide or the aneurysm itself is large, doctors may need to use a small stent (a metal mesh device ... Treating Brain Aneurysms. Repairing neurological damage from aneurysm, stroke and other brain and spine vascular problems is ...
What is a cerebral aneurysm? What treatments are available? Learn more about this condition in this neurosurgeon-edited guide. ... such as complex aneurysms, including large and giant aneurysms, wide-neck aneurysms, fusiform aneurysms and recanalized ... for complex aneurysms such as wide-necked aneurysms with lower dome-to-neck ratios, large and giant aneurysms. Stent - or ... An aneurysm ruptures when a hole develops in the sac of the aneurysm. The hole can be small, in which case only a small amount ...
... multilobed PCoA aneurysms with larger height/width ratios and larger flow angles were associated with ruptured PCoA aneurysms, ... Morphological parameters are easy to assess and could help in risk stratification in patients with unruptured PCoA aneurysms. ... PCoA aneurysms diagnosed at older age have morphological features associated with lower risk. ... Three-dimensional morphological parameters in 409 patients with 432 PCoA aneurysms diagnosed at the Brigham and Womens ...
... , Ultrasonography of Abdominal Aortic Aneurysm, Ultrasound of AAA, Abdominal Aorta ... Ultrasound in Abdominal Aortic Aneurysm. Aka: Ultrasound in Abdominal Aortic Aneurysm, Ultrasonography of Abdominal Aortic ... Screening for Abdominal Aortic Aneurysm. *See Abdominal Aortic Aneurysm for screening indications ... Aorta diameter ,3 cm is consistent with Abdominal Aortic Aneurysm. *Aorta diameter ,5.5 cm meets criteria for elective repair ...
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Ano nga ba ang aneurysm at papaano ito maiiwasan? ... na nakaranas ng brain hemorrhage na indikasyon ng aneurysm ang ... Ano nga ba ang aneurysm at papaano ito maiiwasan?. Noong nakaraang taon, nakaranas at nakaligtas sa aneurysm ang aktor na si ... Batay umano sa mga pag-aaral, karamihan sa mga nagkakaroon ng aneurysm ay mga taong nasa edad 35 hanggang 60. Mas mataaas din ... Ano ang aneurysm at papaano ito maiiwasan?. Oktubre 25, 2017 8:42pm GMT+08:00 ...
During surgery the aneurysm sac was resected and processed for standardized histological analysis. Sections were stained with ... Inflammatory cells were observed in the vessel wall of the aneurysms. Conclusion Histological analysis in this small sample ... Introduction Extracranial carotid artery aneurysms (ECAA) are rare but may be accompanied with significant morbidity. Previous ...
The singer suffered a brain aneurysm according to her conservator, Leslie Morris, who previously revealed that the musician is ... Joni Mitchell is reportedly "making good progress" after suffering a brain aneurysm earlier this year. ... Joni Mitchell is walking, talking and painting as she recovers from brain aneurysm. ...
Care guide for Endovascular Aneurysm Repair of Abdominal Aorta. Includes: possible causes, signs and symptoms, standard ... What do I need to know about endovascular aneurysm repair (EVAR)?. EVAR is a procedure to repair an abdominal aortic aneurysm ( ... This will decrease pressure on the aneurysm. It will also decrease the risk of aneurysm rupture. ... Your healthcare provider will insert a graft inside of the aneurysm. A graft is a long tube that is covered by metal mesh. The ...
Learn about the types of visceral aneurysms and treatments available at UVA. ... Symptoms of Visceral Aneurysms. In some cases, visceral aneurysms may not have any symptoms. Common symptoms include:. * ... Visceral aneurysms occur within abdominal cavity arteries, including the celiac artery, the superior mesenteric artery, the ... Surgery may be necessary if the aneurysm is in a location which prevents adequate or safe repair by embolization or stent-graft ...
PSA for the Brain Aneurysm Foundation. The Brain Aneurysm Foundation had the opportunity to produce a short PSA with Christine ... 2022 Brain Aneurysm Foundation This site uses cookies. Our site uses cookies to personalize features and, via third-parties, to ... Woman With 5 Brain Aneurysms Recalls Surviving Rupture: It Scared Me To Death. A woman in Maryland is sharing her story after ... Stay current with the Brain Aneurysm Foundation. Sign up to receive our newsletter! ...
He added, "Given the complex nature of treating brain tumors and aneurysms, there is a risk of lengthy hospital stays following ... AIN Is Improving Patient Outcomes Following Surgeries for Brain Aneurysms and Tumors. ... of the AIN have extensive experience and are providing second-opinion consultation services for brain tumors and aneurysms. ...
Reliving aneurysms I just read your article on Darla Montgomery and her ruptured brain aneurysm ("Darlas Comeback," May 21). ... I had two aneurysms in 1986 at the age of 37 - one ruptured and one didnt. After the first surgery with the clip, my doctor ... By all rights, I should not have lived through the first aneurysm, as all my neurologists stated, but God kept me here for a ... It just was not my time because not many people survive a ruptured aneurysm. Mine were on opposite sides of my brain, near the ...
The NHS Abdominal Aortic Aneurysm (AAA) Screening Programmes main aim is to reduce the number of deaths from ruptured AAAs ...
  • These aneurysms are less likely to rupture or dissect than aortic aneurysms, but they can form blood clots. (cdc.gov)
  • Rapid aortic growth is a risk factor for rupture, and the definition for rapid aneurysm growth rate has been updated. (medscape.com)
  • Aneurysms are often difficult to detect until they rupture, and equally difficult to prevent, but there are steps you can take to lower your risk of an aneurysm and understand whether you may need screening. (wikihow.com)
  • The major risk for untreated aneurysms is rupture, and as an aneurysm gets bigger, the risk gets greater. (clevelandclinic.org)
  • Complications that are rare but serious include paralysis, delayed rupture of the aneurysm or infection. (clevelandclinic.org)
  • The exact mechanisms by which cerebral aneurysms develop, grow and rupture are unknown. (aans.org)
  • Patients with intracranial aneurysms can present with SAH from aneurysmal rupture or with un-ruptured aneurysms, which may have been discovered incidentally or resulted in neurological symptoms. (aans.org)
  • There is little doubt on the treatment for ruptured cerebral aneurysms, which are typically secured with clips or coils to prevent re-rupture. (aans.org)
  • Risk of intracranial aneurysm rupture could be affected by geometric features of intracranial aneurysms and the surrounding vasculature in a location specific manner. (nature.com)
  • Univariable and multivariable statistical analyses were performed to determine the association of morphological parameters with rupture of PCoA aneurysms. (nature.com)
  • Irregular, multilobed PCoA aneurysms with larger height/width ratios and larger flow angles were associated with ruptured PCoA aneurysms, whereas perpendicular height was inversely associated with rupture in a multivariable model. (nature.com)
  • Therefore, investigating the effects of morphological parameters of the aneurysm and surrounding vascular tree that affect these hemodynamic factors in a location specific manner would be important in understanding the rupture risk of an aneurysm. (nature.com)
  • Here, we present a large sample of 432 posterior communicating artery (PCoA) aneurysms that were examined using a diverse series of morphological and clinical variables to assess the features that are associated with rupture. (nature.com)
  • It will also decrease the risk of aneurysm rupture. (drugs.com)
  • Even with EVAR, your aneurysm may rupture and cause life-threatening bleeding. (drugs.com)
  • A woman in Maryland is sharing her story after surviving an aneurysm rupture, only to find that she had five. (bafound.org)
  • Ascending aortic aneurysm is a serious disease, and rupture of the bulge can be life-threatening. (apollohospitals.com)
  • Bleeding, or rupture, of a cerebral aneurysm causes death or neurological disability in a high percentage of cases. (whhs.com)
  • The type of bleeding caused by cerebral aneurysm rupture is called Subarachnoid Hemorrhage. (whhs.com)
  • Most aneurysms cause no symptoms until they rupture. (whhs.com)
  • Since rupture is unpredictable, neurosurgical intervention is often recommended when aneurysms are discovered incidentally (without bleeding). (whhs.com)
  • Complications from coronary artery aneurysms include thrombosis, embolism, AV fistualization or rupture. (appliedradiology.com)
  • Hemopericardium can be a clue to aneurysm rupture or impending rupture. (appliedradiology.com)
  • Aneurysms often cause no symptoms, but they can be life-threatening if they get too large and rupture, or burst. (uclahealth.org)
  • But medium and large aneurysms often require immediate treatment to repair them fast before they rupture. (uclahealth.org)
  • The main concern with a thoracic aortic aneurysm is preventing a potential rupture. (trihealth.com)
  • A thoracic aortic aneurysm should be monitored carefully, and will often require surgery to prevent rupture. (trihealth.com)
  • Abdominal aortic aneurysms are often undiagnosed because a large proportion are asymptomatic until the development of rupture, which is generally acute and often fatal (59% to 83% of patients die before hospitalization) 2 . (uspreventiveservicestaskforce.org)
  • Rupture of this aneurysm results in extremely severe, and, in one-third of cases, fatal haemorrhage. (unige.ch)
  • Every year, five out of every 100,000 people experience a rupture of an intracranial aneurysm - as many as those injured in road accidents. (unige.ch)
  • Until a rupture or leak occurs, many people are walking around with an aneurysm and don't know it,' he explains. (prevention.com)
  • But many aneurysms don't rupture, and so a lot of us never realize we have one, Riina says. (prevention.com)
  • Although it is possible to repair a ruptured aneurysm surgically, it is important to identify and treat aneurysms before a rupture occurs. (osu.edu)
  • The main risk factors for rupture include pregnancy, polyarteritis nodosa , and large aneurysm size. (logicalimages.com)
  • Moderate Case - An unoperated Aneurysm with controlled symptoms and complications of a possible rupture prevented, may still qualify for a "Medium Substandard" health class. (highrisklifeinsuranceagency.com)
  • Symptoms that include severe headache or chest pain that occurs anytime of the day and presents as sudden and severe may be flare signs posing an impending Aneurysm rupture. (highrisklifeinsuranceagency.com)
  • An Aneurysm is a serious condition not only because it involves major organs, but more so because of the danger of a blood vessel rupture to take place, which often results in death. (highrisklifeinsuranceagency.com)
  • It is rather difficult to isolate the symptoms of Aneurysm because they usually occur once the rupture has taken place. (highrisklifeinsuranceagency.com)
  • A multi-center study of more than 3,000 people with high blood pressure and brain aneurysms found that the use of RAAS inhibitors, a class of blood pressure lowering medications, reduced the risk of an aneurysm rupture by 18%, according to new research published today in Hypertension, a peer-reviewed journal of the American Heart Association. (ladyinrainbow.com)
  • Each year, approximately 30,000 adults in the United States have intracranial aneurysms that rupture, according to the National Institute of Neurological Disorders and Stroke. (ladyinrainbow.com)
  • Two components of RAAS have been shown to be involved in the development of intracranial aneurysms, and previous research has found that dysregulation of RAAS may also contribute to aneurysm rupture. (ladyinrainbow.com)
  • Approximately half of patients with intracranial aneurysms have high blood pressure, which can cause vascular inflammation and increase the risk of aneurysm rupture. (ladyinrainbow.com)
  • This multi-center study analyzed data collected from 2016 to 2021 at 20 medical centers in different regions across China, collected pre- and post-rupture, to evaluate the association among the use of RAAS inhibitors and other blood pressure medications, including beta-blockers and diuretics, on the risk of aneurysm rupture. (ladyinrainbow.com)
  • The analysis found that 32% of participants who took RAAS inhibitors experienced an intracranial aneurysm rupture, compared to 67% of those who used non-RAAS inhibitors. (ladyinrainbow.com)
  • Due to the strong potential benefit and high safety of RAAS inhibitors, these findings may also help clinicians to optimize treatment to help people with high blood pressure prevent aneurysm rupture. (ladyinrainbow.com)
  • These findings confirm previous studies indicating that-;in addition to blood pressure control-;smoking cessation and aggressive treatment of Type 2 diabetes may also help reduce the risk of aneurysm rupture," Huang said. (ladyinrainbow.com)
  • However, more research is needed to understand how RAAS inhibitors are involved in the prevention of intracranial aneurysm rupture in adults with high blood pressure. (ladyinrainbow.com)
  • Marijuana Use Risky After Aneurysm Rupture? (medscape.com)
  • A new study shows a significant association between cannabis use and delayed cerebral ischemia (DCI) after aneurysm rupture, with nearly three times the risk of DCI and poor functional outcome. (medscape.com)
  • Aneurysms are found in 3% of the population, but only a small fraction (approximately 1%) rupture per year. (medscape.com)
  • Future studies should attempt to better quantify the cannabis exposure in terms of chronicity, dose and temporal relationship between the cannabis use and the aneurysm rupture event, in order to better understand whether indeed marijuana can precipitate cerebral ischemia," Akbik and Sadan say. (medscape.com)
  • Determination of the genetic mechanism behind aneurysm formation, progression, and rupture crosses disciplines requiring input from multiple fields of study, larger patient cohorts, and the evolving modalities of genetic testing. (mssm.edu)
  • 2006 ). Indications for re-intervention often include stent migration and endoleak with the associated risk of subsequent aneurysm rupture. (springeropen.com)
  • Hemodynamics is recognized as a relevant factor in the development and rupture of cerebral aneurysms, so further studies related to different physiological conditions in human represent an advance in understanding the pathology and rupture risk. (pucv.cl)
  • This publication was the first of its kind in South Africa (SA), and aneurysm rupture during the next year? (who.int)
  • For patients with suitable anatomy, a potential option might be endovascular repair of thoracoabdominal aortic aneurysms with endografts. (medscape.com)
  • We offer comprehensive options for treating aneurysms, from traditional, open surgery to the latest advancements in minimally invasive, endovascular repair . (uclahealth.org)
  • Popliteal aneurysms may be repaired in one of two ways- open surgery or endovascular repair. (uamshealth.com)
  • Open surgical repair of the aneurysm may be recommended if the anatomy of the aneurysm prevents endovascular repair. (osu.edu)
  • Joni Mitchell is reportedly "making good progress" after suffering a brain aneurysm earlier this year. (nme.com)
  • An aneurysm in the brain (also called a cerebral aneurysm or an intracranial aneurysm ) is a bulging, weakened area in the middle layer of the wall of a blood vessel in the brain, resulting in an abnormal widening. (hopkinsmedicine.org)
  • Three-and-a-half years later, she suffered a subarachnoid haemorrhage secondary to a giant aneurysm arising from the middle cerebral artery bifurcation. (nih.gov)
  • Angiography following his subarachnoid haemorrhage revealed a distal right middle cerebral artery aneurysm that was not visible on earlier angiograms. (nih.gov)
  • A cerebral or intracranial aneurysm is an abnormal focal dilation of an artery in the brain that results from a weakening of the inner muscular layer (the intima) of a blood vessel wall. (aans.org)
  • In fact, 90 percent of SAHs are attributed to ruptured cerebral aneurysms and the two terms are often used synonymously. (aans.org)
  • Every year approximately 30,000 patients in the U.S. suffer from a ruptured cerebral aneurysm, and up to 6 percent of the population may have an un-ruptured cerebral aneurysm. (aans.org)
  • The management of both ruptured and un-ruptured cerebral aneurysms poses a significant challenge for patients and their treating physicians (1). (aans.org)
  • The treatment for un-ruptured cerebral aneurysms has been a matter of debate for decades. (aans.org)
  • PTA can be associated with numerous anomalies in the cerebral vasculature, including aneurysm of the circle of Willis and PTA itself [ 4 ]. (hindawi.com)
  • The CT-angiography (CTA) and digital subtraction angiography (DSA) showed multiple cerebral aneurysms at the site of bifurcation of right middle cerebral artery, A1 segment of left anterior cerebral artery, anterior communicating artery, left posterior communicating artery, and basilar artery bifurcation (Figure 1 ). (hindawi.com)
  • The patient had undergone clipping of multiple aneurysms (bifurcation site of right middle cerebral artery, left anterior communicating artery, and A1 segment of left anterior cerebral artery) and coiling of basilar artery bifurcation aneurysm. (hindawi.com)
  • Three-dimensional digital subtraction angiography demonstrating anterior communicating artery aneurysm ((b) arrow), A1 segment of left anterior cerebral artery ((b) arrowhead), bifurcation of right middle cerebral artery aneurysm ((c) arrow), and basilar artery bifurcation aneurysm ((d) arrow). (hindawi.com)
  • A cerebral aneurysm is a bulging abnormality of a brain artery that often resembles a sac or a balloon. (whhs.com)
  • Cerebral aneurysms are dangerous. (whhs.com)
  • Cerebral aneurysms are not infrequently multiple, and may sometimes be associated with a family history. (whhs.com)
  • Endovascular techniques for cerebral aneurysm include platinum microcoils (deposited within the aneurysm), stents (used to bridge the bottom of some aneurysms), and balloons (used to widen constricted blood vessels, or sometimes in conjunction with coils). (whhs.com)
  • Once an aneurysm is coiled, it is recommended to undergo cerebral angiography at half-year intervals for 2 years, to monitor the permanence of occlusion. (whhs.com)
  • Because of the dangerous nature and complexity of cerebral aneurysms, it is advantageous for the neurosurgeon to have access to all current treatment modalities. (whhs.com)
  • Most cerebral aneurysms can be eliminated successfully using a measured and well-planned approach to treatment. (whhs.com)
  • The traditional treatment of subarachnoid hemorrhage (SAH) from a ruptured cerebral aneurysm included strict blood pressure control, with fluid restriction and antihypertensive therapy. (medscape.com)
  • In this paper, Fluid-structure interaction simulations (FSI) were carried out in six models of cerebral aneurysms, in order to study the hemo-dynamics effects of an isolated systolic hypertension (ISH) condition and compare it to a normal or normotensive pressure condition and a higher hypertension condition. (pucv.cl)
  • Association between CM and cerebral aneurysm is well documented in this condition but the occurrence of cerebral aneurysm after resection of CM is very rare, with only 40 reports in medical literature . (bvsalud.org)
  • We present a case of a 45 years old female patient with multiple cerebral aneurysms 2 years after a successful resection of cardiac myxoma , submitted to radiosurgery for 2 bigger aneurysms with good results. (bvsalud.org)
  • It presents images and case reports related to cerebral aneurysms and vascular anomalies. (bvsalud.org)
  • Men and women are equally likely to get thoracic aortic aneurysms, which become more common with increasing age. (cdc.gov)
  • Thoracic aortic aneurysms are usually caused by high blood pressure or sudden injury. (cdc.gov)
  • Sometimes people with inherited connective tissue disorders, such as Marfan syndrome and Ehlers-Danlos syndrome, get thoracic aortic aneurysms. (cdc.gov)
  • Abdominal aortic aneurysms happen more often than thoracic aortic aneurysms. (cdc.gov)
  • Improved prognosis of thoracic aortic aneurysms: a population-based study. (cdc.gov)
  • At centers with multidisciplinary aortic teams and experienced surgeons, the threshold for surgical intervention for sporadic aortic root and ascending aortic aneurysms is now 5.0 cm (from 5.5 cm) in select individuals, and it is even lower in specific settings among patients with heritable thoracic aortic aneurysms. (medscape.com)
  • Society for Vascular Surgery clinical practice guidelines of thoracic endovascular aortic repair for descending thoracic aortic aneurysms. (medscape.com)
  • Ascending aortic aneurysms are a subtype of thoracic aortic aneurysms that develop above the diaphragm. (apollohospitals.com)
  • Genome-wide association study identifies a susceptibility locus for thoracic aortic aneurysms and aortic dissections spanning FBN1 at 15q21.1. (medscape.com)
  • The U.S. Preventive Services Task Force recommends that men 65 to 75 years old who have ever smoked should get an ultrasound screening for abdominal aortic aneurysms, even if they have no symptoms. (cdc.gov)
  • Long-term follow-up of population-based randomized, controlled trials (RCTs) have demonstrated that screening for abdominal aortic aneurysms (AAAs) measuring 3 cm or greater decreases AAA-related mortality rates in men aged 65 years or older. (uspreventiveservicestaskforce.org)
  • Dissections and ruptures are the cause of most deaths from aortic aneurysms. (cdc.gov)
  • An aneurysm ruptures when a hole develops in the sac of the aneurysm. (aans.org)
  • Riina says 30% to 50% of sufferers will die as soon as an aneurysm ruptures. (prevention.com)
  • The aorta is the body's largest blood vessel and if a section of this large artery forms an aneurysm (has damage) and ruptures, you will have life-threatening internal bleeding. (osu.edu)
  • If an intracranial aneurysm ruptures, it spills blood around the brain and cuts off oxygen to an affected area, which can cause a hemorrhagic stroke, coma and death. (ladyinrainbow.com)
  • However, patients with a known aneurysm that is being managed conservatively with observation may want to reconsider their cannabis use in the event that their aneurysm ruptures," said Lawton. (medscape.com)
  • Anyone with a diagnosis of a brain aneurysm who develops symptoms should seek medical help as soon as possible, as treatment may prevent a burst. (medicalnewstoday.com)
  • Mayo Clinic doctors trained in vascular diseases, vascular surgery, cardiovascular surgery, cardiovascular diseases and other areas research new and improved diagnosis and treatment options for aortic aneurysms. (mayoclinic.org)
  • Renal artery aneurysms are usually asymptomatic, and diagnosis is most often incidental. (logicalimages.com)
  • Although timely diagnosis and treatment with intravenous immunoglobulin (IVIG) are critical to reduce the incidence of coronary artery aneurysms, 8 diagnosis of KD is still established based on clinical criteria supported by laboratory evidence of acute inflammation and there is no specific diagnostic test to aid the clinician. (lww.com)
  • Which form of intervention is safest for the patient is a complex medical decision based on the shape and size of the aneurysm, the experience of the physician in the different procedures, and on the health and preferences of the patient. (whhs.com)
  • Magnetic resonance angiography (MRA) is useful in assessing the aortic anatomy, the size of the aneurysm, the dissection, and the branch vessels. (medscape.com)
  • The symptoms of an aneurysm may resemble other medical conditions or problems. (hopkinsmedicine.org)
  • Also, no one included in the survey could correctly identify all the signs and symptoms of an aneurysm. (prevention.com)
  • Repairing neurological damage from aneurysm, stroke and other brain and spine vascular problems is more promising today thanks to diagnostic, imaging and treatment advances. (bidmc.org)
  • Physicians perform endovascular treatment for aneurysms and other brain and spine vascular problems in BIDMC's arteriography suite. (bidmc.org)
  • Our study is unique in the large number of aneurysms, the inclusion of parameters that involve the surrounding vascular anatomy which are not intrinsic to aneurysm morphology, and the evaluation of clinical factors that may be associated with particular morphologies. (nature.com)
  • Other potential risk factors include a history of other vascular aneurysms 9 , coronary artery disease 10 , cerebrovascular disease 9 , atherosclerosis 10 , hypercholesterolemia 10 , and hypertension 1 , 10 . (uspreventiveservicestaskforce.org)
  • Through the examination of the genome of more than 10,000 people suffering from aneurysms compared to that of 300,000 healthy volunteers, 17 genetic abnormalities have been identified that are notably involved in the functioning of the vascular endothelium, the inner lining of blood vessels. (unige.ch)
  • Guidelines on popliteal artery aneurysms (PAAs) were published in January 2022 by the Society for Vascular Surgery (SVS) in the Journal of Vascular Surgery . (medscape.com)
  • Abdominal aortic aneurysms are usually caused by atherosclerosis (hardened arteries), but infection or injury can also cause them. (cdc.gov)
  • Peripheral aneurysms-those found in arteries other than the aorta-can happen in the neck, in the groin, or behind the knees. (cdc.gov)
  • Aneurysms also can happen in arteries in the brain, heart and other parts of the body. (medlineplus.gov)
  • The most important aneurysms affect the biggest artery leaving the heart and the arteries in the brain. (medicalnewstoday.com)
  • An aneurysm may occur in any artery, but is often seen in arteries in the brain. (hopkinsmedicine.org)
  • Although patients with aneurysms are born with a weakness in one or more spots of the arteries in the brain, it takes many years for aneurysms to grow. (hopkinsmedicine.org)
  • Aneurysms can occur in any blood vessel, but the most dangerous aneurysms are those that form in the aorta or the arteries in the brain. (wikihow.com)
  • Morphological parameters examined included aneurysm wall irregularity, presence of a daughter dome, presence of hypoplastic or aplastic A1 arteries and hypoplastic or fetal PCoA, perpendicular height, width, neck diameter, aspect and size ratio, height/width ratio, and diameters and angles of surrounding parent and daughter vessels. (nature.com)
  • Visceral aneurysms occur within abdominal cavity arteries, including the celiac artery, the superior mesenteric artery, the inferior mesenteric artery, the hepatic artery, the splenic artery and the renal arteries. (uvahealth.com)
  • We present the first case of an aneurysm of the PTA which is directly terminating in the cerebellar arteries and combined with multiple aneurysms. (hindawi.com)
  • Yearly monitoring for changes in symptoms, pulse examination, extent of thrombus, patency of the outflow arteries, and aneurysm diameter is suggested for patients with an asymptomatic PAA who are not offered repair. (medscape.com)
  • An aneurysm is a presence of a bulge or balloon-like structure in the major arteries of the brain or the heart. (highrisklifeinsuranceagency.com)
  • Pathological outpouching or sac-like dilatation in the wall of any blood vessel ( ARTERIES or VEINS ) or the heart ( HEART ANEURYSM ). (bvsalud.org)
  • Embolization is a non-surgical, minimally invasive procedure where blood flow is cut off to the area and rerouted around the aneurysm. (uvahealth.com)
  • Surgery may be necessary if the aneurysm is in a location which prevents adequate or safe repair by embolization or stent-graft placement. (uvahealth.com)
  • Placement of 1 or more Pipeline Embolization Device(s)(PED) into the parent artery at the target aneurysm. (clinicaltrials.gov)
  • In coil embolization for aneurysm, the aneurysm is excluded from the normal circulation by the deposition of platinum microcoils delivered through a microcatheter entering the body from the leg. (whhs.com)
  • An aortic aneurysm is a balloon-like bulge in the aorta, the large artery that carries blood from the heart through the chest and torso. (cdc.gov)
  • An aneurysm is a bulge or "ballooning" in the wall of an artery. (medlineplus.gov)
  • An aneurysm is a bulge in an artery. (medicalnewstoday.com)
  • An aneurysm is a bulge in the wall of a blood vessel caused by the weakening of the vessel wall. (wikihow.com)
  • A thoracic aortic aneurysm (TAA) is an expansion or bulge in the artery wall resulting from a weakening of the artery wall. (trihealth.com)
  • An aneurysm is a bulge in a blood vessel that, if overstretched, threatens to burst and cause internal bleeding. (tu-ilmenau.de)
  • Both the pressure and the lack of sufficient blood caused by a ruptured aneurysm can lead quickly to unconsciousness and death. (prevention.com)
  • If the bleeding is caused by a ruptured aneurysm, a metal clip may be put in place to stop the blood loss. (cdc.gov)
  • Most aneurysms occur in the aorta , the main artery that runs from the heart through the chest and abdomen. (medlineplus.gov)
  • most aortic aneurysms (AAs) occur in the abdominal aorta and thus are termed abdominal aortic aneurysms (AAAs). (medscape.com)
  • Dissection should not be termed dissecting aneurysm, because it can occur with or without aneurysmal enlargement of the aorta. (medscape.com)
  • Aortic aneurysms occur when a weak part of the aorta expands like a balloon, forming a blood-filled sac. (uclahealth.org)
  • Aortic aneurysms most often occur in the abdomen as an abdominal aortic aneurysm , but can also occur in the upper chest as a thoracic aortic aneurysm . (osu.edu)
  • Congenital renal artery aneurysms also occur. (logicalimages.com)
  • What are the risk factors for aortic aneurysm? (cdc.gov)
  • Know the risk factors for aortic aneurysms, educate yourself about this silent killer, and protect your health - starting today. (osu.edu)
  • Predicting neurobehavioral patterns following anterior communicating artery aneurysm. (bvsalud.org)
  • What are the types of aortic aneurysm? (cdc.gov)
  • a) Three-dimensional digital subtraction angiography shows left posterior communicating artery aneurysm (arrow) and left persistent trigeminal artery (PTA) aneurysm (arrowhead). (hindawi.com)
  • Her history was notable for clipping of a right posterior communicating artery aneurysm 18 years prior. (bmj.com)
  • She was found to have a 7.4×5.0×5.0 mm (97 mm 3 ) basilar artery bifurcation aneurysm and a 12.7×11.2×10.8 mm (804 mm 3 ) anterior communicating artery (Acomm) aneurysm. (bmj.com)
  • Nearly three percent of the world's population is at risk of developing an intracranial aneurysm, a localized dilation of a blood vessel forming a fragile pocket. (unige.ch)
  • By definition, an aneurysm is a localized or diffuse dilation of an artery with a diameter at least 50% greater than the normal size of the artery. (medscape.com)
  • Coronary artery aneurysm is an abnormal dilatation of a coronary artery segment over 1.5 times the diameter of normal adjacent segment. (wikidoc.org)
  • A coronary artery ectasia is considered as an aneurysm when the coronary artery dilatation is 1.5 times the normal artery diameter located anywhere in the culprit artery. (wikidoc.org)
  • An abdominal aortic aneurysm (AAA) is a weakening in the wall of the infrarenal aorta that results in an anteroposterior diameter of 3 cm or greater 1 . (uspreventiveservicestaskforce.org)
  • Renal artery aneurysm is a rare condition defined as a dilated arterial segment which exceeds twice the diameter of the normal renal artery. (logicalimages.com)
  • A, B) The infrarenal aortic aneurysm had a maximum short diameter of 39 mm and a cystic protrusion of 19 mm (arrow in panel A) before the operation. (cdc.gov)
  • The size of the resected aneurysm was approximately 80 mm in diameter. (bvsalud.org)
  • The two main treatments for aortic aneurysms are medicines and surgery . (cdc.gov)
  • Surgery is recommended for patients with aneurysms of aortic root and ascending thoracic aorta with a confirmed growth rate of ≥0.3 cm per year across 2 consecutive years or ≥0.5 cm in 1 year. (medscape.com)
  • He added, "Given the complex nature of treating brain tumors and aneurysms, there is a risk of lengthy hospital stays following surgery, risk of having morbidity (having a stroke) following surgery, and the risk of death following surgery. (prweb.com)
  • Coronary artery bypass graft surgery is also performed, often with resection of aneurysms. (appliedradiology.com)
  • Stents have revolutionized how doctors treat patients with blood-vessel diseases and, within neurosurgery, we can now fix aneurysms using a stent delivered through a small needle hole that only requires an overnight surgery," says Dr. John Wong, MD, associate professor at the Cumming School of Medicine, who co-founded Fluid Biotech with his research partner, associate professor Dr. Alim Mitha, MD. (ucalgary.ca)
  • Management of Aortic Aneurysm & Dissection Surgery Conclave 2022 was organized by Apollo Hospitals in Chennai. (apollohospitals.com)
  • Aneurysmal degeneration that occurs in the thoracic aorta is termed a thoracic aortic aneurysm (TAA). (medscape.com)
  • Aneurysms that coexist in both segments of the aorta (thoracic and abdominal) are termed thoracoabdominal aneurysms (TAAAs). (medscape.com)
  • Aneurysms that involve the ascending aorta may extend as far proximally as the aortic annulus and as far distally as the innominate artery, whereas descending thoracic aneurysms begin beyond the left subclavian artery. (medscape.com)
  • Screen first-degree relatives of individuals diagnosed with aneurysms of the aortic root or ascending thoracic aorta, or those with aortic dissection to identify individuals most at risk for aortic disease. (medscape.com)
  • Changes in the activity of certain elements within the aorta are thought to weaken the wall and lead to the formation of an aneurysm. (uclahealth.org)
  • An abdominal aortic aneurysm, known as a AAA, is an enlarged portion of the body's largest blood vessel, the aorta. (hamiltonhealthsciences.ca)
  • Infection, injury to the aorta and genetic disorders, including Marfan syndrome , are also factors that increase the risk of developing an aortic aneurysm. (osu.edu)
  • The Wexler Aorta Aneurysm Clamp is made of Stainless Steel. (wexlersurgical.com)
  • Total length of the Wexler Aorta Aneurysm Clamp is 10.75" (27cm). (wexlersurgical.com)
  • Aneurysms of the abdominal aorta (AAA) are relatively common - affecting as many as 8% of men and 1% of women over the age of 65. (mssm.edu)
  • To evaluate the incidence and clinical relevance of extravascular incidental findings (EVIF), particularly malignancies, in planning and follow-up CT angiograms (CTA) of the abdominal aorta in patients who underwent endovascular aneurysm repair (EVAR) of abdominal aortic aneurysm. (springeropen.com)
  • On Jan. 5, 2021, it was reported that Dr. Dre had suffered a brain aneurysm and he was rushed to Cedars-Sinai Medical Center in Los Angeles, California one day prior (Jan. 4). (hollywoodlife.com)
  • Contrast-enhanced computed tomography imaging for Case-patient 3 in the Helicobacter cinaedi group of 10 patients with infected aortic aneurysms with or without H. cinaedi , Aichi, Japan, September 2017-January 2021. (cdc.gov)
  • Aortic aneurysms or aortic dissections were the cause of 9,904 deaths in 2019. (cdc.gov)
  • In 2019, about 59% of deaths due to aortic aneurysm or aortic dissection happen among men. (cdc.gov)
  • The shape of an aortic aneurysm is either saccular or fusiform. (medscape.com)
  • A fusiform (or true) aneurysm has a uniform shape with a symmetrical dilatation that involves the entire circumference of the aortic wall. (medscape.com)
  • Studies have shown CTA to be highly sensitive and specific-and more sensitive than echocardiography for the detection of and demonstration of fusiform and distal aneurysms. (appliedradiology.com)
  • [1] An aneurysm can be classified as either saccular (wider than it is long) or fusiform (elongated). (wikidoc.org)
  • In 1951, Lam and Aram reported the resection of a descending thoracic aneurysm with allograft replacement. (medscape.com)
  • Because their abdominal aneurysms enlarged rapidly, all 3 patients underwent resection of the aneurysm and extensive local debridement and irrigation. (cdc.gov)
  • We successfully performed resection of a large asymptomatic left atrial appendage aneurysm ( LAAA) under non- cardiac arrest . (bvsalud.org)
  • The goals of aortic aneurysm treatment are to reduce the risk of complications from aneurysms. (clevelandclinic.org)
  • Treatment of AAAs, TAAAs, and TAAs involves surgical repair in good-risk patients with aneurysms that have reached a size sufficient to warrant repair. (medscape.com)
  • Tumor necrosis factor-alpha (TNF-alpha) is considered to be 1 of the factors that induce vasculitis, including coronary artery aneurysm (CA), in Kawasaki disease (KD), because the blood concentration of TNF-alpha is higher in patients with CA compared with those without. (nih.gov)
  • Two patients sustained a subarachnoid haemorrhage secondary to radiation-induced vasculopathy and associated aneurysm. (nih.gov)
  • Both patients underwent craniotomy for their aneurysms with good postoperative recoveries. (nih.gov)
  • Three-dimensional morphological parameters in 409 patients with 432 PCoA aneurysms diagnosed at the Brigham and Women's Hospital and Massachusetts General Hospital between 1990 and 2016 who had available CT angiography (CTA) or digital subtraction angiography (DSA) were evaluated. (nature.com)
  • Morphological parameters are easy to assess and could help in risk stratification in patients with unruptured PCoA aneurysms. (nature.com)
  • Using natural language processing (NLP) in conjunction with manual medical record review from the Partners Healthcare Research Patients Data Registry (RPDR), patients diagnosed with an intracranial aneurysm at the Brigham and Women's Hospital (BWH) and Massachusetts General Hospital (MGH), from 1990 to 2016 were identified. (nature.com)
  • Using a machine learning algorithm based on both codified and NLP data to identify an initial set of patients with potential aneurysms from the RPDR, 5,589 patients were eventually identified 16 , of which 727 patients were also seen on clinical presentation from 2007 to 2013 with prospectively collected data. (nature.com)
  • 4,701 patients with definite saccular aneurysms were identified by manually reviewing (AC and RD) the medical records of all 6,063 patients 17 . (nature.com)
  • Patients with SLE frequently have coronary artery manifestations, with atherosclerosis being much more common than aneurysms. (appliedradiology.com)
  • Treatment often varies depending on the etiology of the aneurysm.2 Many patients are placed on aspirin to decrease the changes of thrombosis. (appliedradiology.com)
  • Because ISAT was a positive pragmatic trial, the interpretation of the trial results was that coiling should be adopted as the first-line treatment for ruptured lesions, for patients with the types of aneurysms included in ISAT, of which the great majority were small (10 mm) anterior circulation aneurysms. (centerwatch.com)
  • Endovascular treatment for ruptured aneurysms has now become first-line treatment in many centers (2), which may be appropriate for small, anterior circulation lesions, but there is no evidence to support this practice for the wide spectrum of non-ISAT patients and aneurysms. (centerwatch.com)
  • The wider spectrum of patients and aneurysms now considered for EVT may not all experience the same degree of benefit as seen in the original ISAT trial (4). (centerwatch.com)
  • A UCeed-funded medical device company founded by two University of Calgary researchers is developing groundbreaking technology to improve the lives of patients with brain aneurysms. (ucalgary.ca)
  • John Wong, left, and Alim Mitha co-founded Fluid Biotech with the goal of improving the lives of patients who have brain aneurysms. (ucalgary.ca)
  • While the clinician-scientists are focused on improving treatments for brain aneurysm patients, they point out the potential applications of this new technology extend beyond the brain to treat other blood-vessel conditions in the body. (ucalgary.ca)
  • Screen patients who present with a PAA for both a contralateral PAA and an abdominal aortic aneurysm (AAA). (medscape.com)
  • Based on these data, we estimate that nearly 18% of ruptured aneurysms may be prevented if all patients with high blood pressure and intracranial aneurysms were prescribed with RAAS inhibitors. (ladyinrainbow.com)
  • Hematocrit may be lowered in patients with a ruptured aneurysm. (medscape.com)
  • Endovascular aneurysm repair (EVAR) has become the predominant treatment option for patients with abdominal aortic aneurysm (AAA) accounting for 78% of all elective repair in the United States in 2010 (Dua et al. (springeropen.com)
  • The National Institute of Neurological Disorders and Stroke (NINDS) say that about 25 percent of people who have a burst brain aneurysm die within the first 24 hours. (medicalnewstoday.com)
  • About five per cent of people harbour a brain aneurysm that, if it bursts, can cause devastating neurological effects and be fatal in one-third of cases. (ucalgary.ca)
  • Just over a year after he suffered a terrifying brain aneurysm, Dr. Dre will be taking the stage for the 2022 Super Bowl. (hollywoodlife.com)
  • Cite this: Popliteal Artery Aneurysms Clinical Practice Guidelines (SVS, 2022) - Medscape - Jan 31, 2022. (medscape.com)
  • When this happens in an artery in the brain, it is called an intracranial aneurysm. (ladyinrainbow.com)
  • Doctors may follow small aneurysms with regular imaging studies to monitor aneurysm growth and changes, and the development of any symptoms. (bidmc.org)
  • Findings may not demonstrate small aneurysms. (medscape.com)
  • The pulmonary artery had a focal dilatation at base of ~ 2.5 cm, interpreted as aneurysm, apparently with reduced wall thickness ( figure 1C ). (scielo.cl)
  • Instead of an open aneurysm repair in which your chest/abdomen are surgically opened, your surgeon may consider a procedure called an endovascular aneurysm repair (EVAR). (clevelandclinic.org)
  • In addition to EVAR, you may also hear your doctor refer to the procedure as a thoracic endovascular aneurysm repair (TEVAR) or fenestrated endovascular aneurysm Repair (FEVAR), depending on the type of repair that is being discussed. (clevelandclinic.org)
  • What do I need to know about endovascular aneurysm repair (EVAR)? (drugs.com)
  • EVAR is a procedure to repair an abdominal aortic aneurysm (AAA). (drugs.com)
  • CT scanning is useful in evaluating aneurysm size, proximal and distal extension, presence or absence of dissection, and in seeking other pathology within the chest. (medscape.com)
  • Conclusions The Penumbra Coil 400 filled a large aneurysm to adequate packing density in about the same overall time and use of fluoroscopy as a smaller aneurysm treated with 10-size coils, despite the Penumbra-treated aneurysm being 8.3 times larger by volume. (bmj.com)
  • It aims to improve care by helping people who are at risk to get tested, specifying how often to monitor asymptomatic aneurysms, and identifying when aneurysm repair is needed and which procedure will work best. (bvsalud.org)
  • Coronary artery aneurysms are a rare complication of a variety of disease processes. (appliedradiology.com)
  • Kawasaki disease is the most common cause of coronary artery aneurysms worldwide, particularly in children. (appliedradiology.com)
  • 2 SLE is a rather uncommon cause of coronary artery aneurysms. (appliedradiology.com)
  • Interestingly, clinical disease activity and serological markers do not seem to correlate well with coronary artery vasculitis or aneurysm. (appliedradiology.com)
  • 1 Catheter angiography historically was used in detecting coronary artery aneurysms, but due to invasiveness and morbidity, as well as technological advances in other modalities, it is performed less commonly now. (appliedradiology.com)
  • Systemic lupus erythematosus is an uncommon cause of coronary artery aneurysms, with Kawasaki disease being a much more common cause in children. (appliedradiology.com)
  • However, children with known SLE who present with chest pain should be evaluated for coronary artery disease, including aneurysms, with echocardiograms or contrast enhanced CT. (appliedradiology.com)
  • A case of giant coronary artery aneurysm and literature review. (appliedradiology.com)
  • Shown below are an animated image and a static image depicting an aneurysm in the left coronary artery . (wikidoc.org)
  • Coronary artery aneurysm has a good prognosis. (wikidoc.org)
  • 2007). "Coronary artery aneurysm induced by Kawasaki disease in children show features typical senescence" . (wikidoc.org)
  • Findings may demonstrate strain or ischemia when a proximal aneurysm distorts the anatomy of the aortic valve or the coronary artery. (medscape.com)
  • A sudden headache is the main difference between a burst aneurysm and a stroke that results from a blood clot. (medicalnewstoday.com)
  • You may be eligible for endovascular stent grafting if your aneurysm has not ruptured and the aneurysm is 5 centimeters or more in size. (clevelandclinic.org)
  • Catheters are inserted in the incisions to guide and deliver a stent-graft through the blood vessels to the aneurysm. (clevelandclinic.org)
  • Complications that can happen after endovascular aneurysm repair include leaking of blood around the graft, the graft moving away from its initial placement and the stent breaking. (clevelandclinic.org)
  • The Fluid Biotech stent is inserted in the blood vessel where the brain aneurysm has developed. (ucalgary.ca)
  • Since a stent has no purpose after it has finished healing the blood vessel, Mitha and Wong conceived the idea of a dissolving stent for treating brain aneurysms. (ucalgary.ca)
  • Pleural effusion is usually associated with aortic dissection rather than with a stable aneurysm. (medscape.com)
  • Hereditary influence in thoracic aortic aneurysm and dissection. (medscape.com)
  • Left atrial appendage aneurysm is believed to be congenital ;however, it is often detected in adulthood. (bvsalud.org)
  • Aneurysms that are greater than 2.5 cm, growing, or causing renal complications such as renovascular hypertension or hematuria are usually treated surgically. (logicalimages.com)
  • Note that every provider listed below may not perform or prescribe Popliteal Aneurysm Repair for all conditions related to it. (uamshealth.com)
  • Note that Popliteal Aneurysm Repair may not be performed at every location listed below. (uamshealth.com)
  • This can be due to a subarachnoid hemorrhage type of stroke, as mentioned above, or because of an aneurysm. (medicalnewstoday.com)
  • Once the aneurysm is isolated after tracing its parent blood vessel, a titanium clip is applied in such a way as to exclude the aneurysm from the normal circulation, which is preserved. (whhs.com)
  • Aneurysms are classified by location, etiology, or other characteristics. (bvsalud.org)