Intracranial Aneurysm: 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)Aneurysm: 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, Infected: Aneurysm due to growth of microorganisms in the arterial wall, or infection arising within preexisting arteriosclerotic aneurysms.Aortic Aneurysm: An abnormal balloon- or sac-like dilatation in the wall of AORTA.Heart Aneurysm: 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.Aortic Aneurysm, Thoracic: 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, Dissecting: 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.Iliac Aneurysm: 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.Embolization, Therapeutic: 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.Coronary Aneurysm: 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.Blood Vessel Prosthesis Implantation: Surgical insertion of BLOOD VESSEL PROSTHESES to repair injured or diseased blood vessels.Cerebral Angiography: Radiography of the vascular system of the brain after injection of a contrast medium.Aortic Rupture: 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.Aneurysm, False: 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.Blood Vessel Prosthesis: Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels.Aorta, Abdominal: The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries.Subarachnoid Hemorrhage: 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, X-Ray Computed: Tomography using x-ray transmission and a computer algorithm to reconstruct the image.Endovascular Procedures: 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.Angiography, Digital Subtraction: 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.Aortography: Radiographic visualization of the aorta and its branches by injection of contrast media, using percutaneous puncture or catheterization procedures.Vascular Surgical Procedures: Operative procedures for the treatment of vascular disorders.Treatment Outcome: 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.Surgical Instruments: Hand-held tools or implements used by health professionals for the performance of surgical tasks.Stents: Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.Angiography: Radiography of blood vessels after injection of a contrast medium.Postoperative Complications: 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.Prosthesis Design: The plan and delineation of prostheses in general or a specific prosthesis.Follow-Up Studies: 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.Anterior Cerebral Artery: 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.Retrospective Studies: 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.Carotid Artery, Internal: Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose.Iliac Artery: Either of two large arteries originating from the abdominal aorta; they supply blood to the pelvis, abdominal wall and legs.Neurosurgical Procedures: Surgery performed on the nervous system or its parts.Endoleak: 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.Aortitis: Inflammation of the wall of the AORTA.Platinum: 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".Carotid Artery Diseases: 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.Polyethylene Terephthalates: 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.Splenic Artery: The largest branch of the celiac trunk with distribution to the spleen, pancreas, stomach and greater omentum.Angioplasty: 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.Reoperation: A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.Balloon Occlusion: Use of a balloon CATHETER to block the flow of blood through an artery or vein.Renal Artery: A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters.Sinus of Valsalva: The dilatation of the aortic wall behind each of the cusps of the aortic valve.Imaging, Three-Dimensional: 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.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Vertebral Artery: The first branch of the SUBCLAVIAN ARTERY with distribution to muscles of the NECK; VERTEBRAE; SPINAL CORD; CEREBELLUM; and interior of the CEREBRUM.Pancreatic Elastase: 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 3.4.21.36.Cerebral Arteries: The arterial blood vessels supplying the CEREBRUM.Dilatation, Pathologic: The condition of an anatomical structure's being dilated beyond normal dimensions.Retreatment: 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.Posterior Cerebral Artery: 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.Celiac Artery: The arterial trunk that arises from the abdominal aorta and after a short course divides into the left gastric, common hepatic and splenic arteries.Anastomosis, Surgical: 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.Basilar Artery: 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.Mesenteric Artery, Superior: 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.Marfan Syndrome: 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.Prosthesis Failure: Malfunction of implantation shunts, valves, etc., and prosthesis loosening, migration, and breaking.Foreign-Body Migration: Migration of a foreign body from its original location to some other location in the body.Circle of Willis: 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.Craniotomy: Any operation on the cranium or incision into the cranium. (Dorland, 28th ed)Microsurgery: The performance of surgical procedures with the aid of a microscope.Equipment Design: Methods of creating machines and devices.Risk Factors: 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.Subclavian Artery: 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.Cerebral Revascularization: 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.Aorta, Thoracic: The portion of the descending aorta proceeding from the arch of the aorta and extending to the DIAPHRAGM, eventually connecting to the ABDOMINAL AORTA.Mucocutaneous Lymph Node Syndrome: 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.Risk Assessment: 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)Popliteal Artery: The continuation of the femoral artery coursing through the popliteal fossa; it divides into the anterior and posterior tibial arteries.Vascular Fistula: An abnormal passage between two or more BLOOD VESSELS, between ARTERIES; VEINS; or between an artery and a vein.Radiography, Interventional: 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.Models, Cardiovascular: 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.Vertebral Artery Dissection: 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.Carotid Artery, Internal, Dissection: 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.Mechanical Thrombolysis: Procedures to cause the disintegration of THROMBI by physical interventions.Recurrence: The return of a sign, symptom, or disease after a remission.Incidental Findings: 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.Arteriovenous Fistula: 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.Mesenteric Artery, Inferior: 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.Thrombosis: Formation and development of a thrombus or blood clot in the blood vessel.Aortic Diseases: Pathological processes involving any part of the AORTA.Femoral Artery: The main artery of the thigh, a continuation of the external iliac artery.Glasgow Outcome Scale: A scale that assesses the outcome of serious craniocerebral injuries, based on the level of regained social functioning.Fatal Outcome: 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.Coated Materials, Biocompatible: 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.Polytetrafluoroethylene: 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.Intracranial Thrombosis: 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.Tomography, Spiral Computed: 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.Intracranial Arteriovenous Malformations: 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.Vascular Patency: The degree to which BLOOD VESSELS are not blocked or obstructed.Ligation: Application of a ligature to tie a vessel or strangulate a part.Prospective Studies: 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.ElastinCerebral Hemorrhage: Bleeding into one or both CEREBRAL HEMISPHERES including the BASAL GANGLIA and the CEREBRAL CORTEX. It is often associated with HYPERTENSION and CRANIOCEREBRAL TRAUMA.Equipment Failure Analysis: 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.Feasibility Studies: Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.Patient Selection: 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.Intraoperative Complications: 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.Paraplegia: 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.Buttocks: 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.Catheterization: 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.Carotid Artery, Common: 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.Loeys-Dietz Syndrome: 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.Magnetic Resonance Imaging: 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.Spinal Cord Ischemia: 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.Aorta: The main trunk of the systemic arteries.Arterial Occlusive Diseases: 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.Vascular Grafting: Surgical insertion of BLOOD VESSEL PROSTHESES, or transplanted BLOOD VESSELS, or other biological material to repair injured or diseased blood vessels.Viscera: Any of the large interior organs in any one of the three great cavities of the body, especially in the abdomen.Ophthalmic Artery: Artery originating from the internal carotid artery and distributing to the eye, orbit and adjacent facial structures.Behcet Syndrome: 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.Elastic Tissue: Connective tissue comprised chiefly of elastic fibers. Elastic fibers have two components: ELASTIN and MICROFIBRILS.Brachiocephalic Trunk: 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.Disease Models, Animal: 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.Esophageal Fistula: Abnormal passage communicating with the ESOPHAGUS. The most common type is TRACHEOESOPHAGEAL FISTULA between the esophagus and the TRACHEA.Survival Rate: 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.Cranial Nerve Diseases: 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.Prostheses and Implants: 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.Predictive Value of Tests: 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.Axillary Artery: The continuation of the subclavian artery; it distributes over the upper limb, axilla, chest and shoulder.Oculomotor Nerve Diseases: 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)Suture Techniques: Techniques for securing together the edges of a wound, with loops of thread or similar materials (SUTURES).Fistula: Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.Hematoma: A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.Aortic Coarctation: 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.Matrix Metalloproteinase 9: An endopeptidase that is structurally similar to MATRIX METALLOPROTEINASE 2. It degrades GELATIN types I and V; COLLAGEN TYPE IV; and COLLAGEN TYPE V.Hospital Mortality: A vital statistic measuring or recording the rate of death from any cause in hospitalized populations.Transducers, Pressure: Transducers that are activated by pressure changes, e.g., blood pressure.Arteries: The vessels carrying blood away from the heart.Length of Stay: The period of confinement of a patient to a hospital or other health facility.Ultrasonography, Doppler, Duplex: 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.Replantation: Restoration of an organ or other structure to its original site.Hepatic Artery: A branch of the celiac artery that distributes to the stomach, pancreas, duodenum, liver, gallbladder, and greater omentum.Incidence: 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.Equipment Safety: Freedom of equipment from actual or potential hazards.Severity of Illness Index: Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.Temporal Arteries: Arteries arising from the external carotid or the maxillary artery and distributing to the temporal region.Vasospasm, Intracranial: 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).Image Processing, Computer-Assisted: 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.Disease Progression: 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.Sensitivity and Specificity: 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)Constriction: The act of constricting.Echocardiography, Transesophageal: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.Saphenous Vein: The vein which drains the foot and leg.Radiographic Image Interpretation, Computer-Assisted: Computer systems or networks designed to provide radiographic interpretive information.Surgical Procedures, Minimally Invasive: 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.Enbucrilate: 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.Models, Anatomic: Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.Arteritis: INFLAMMATION of any ARTERIES.Intestinal Fistula: 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).Cyanoacrylates: 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.Middle Cerebral Artery: 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.Matrix Metalloproteinase 2: A secreted endopeptidase homologous with INTERSTITIAL COLLAGENASE, but which possesses an additional fibronectin-like domain.Vertebrobasilar Insufficiency: 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.Ischemia: 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.Chi-Square Distribution: 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.Cerebrovascular Circulation: The circulation of blood through the BLOOD VESSELS of the BRAIN.Neurologic Examination: Assessment of sensory and motor responses and reflexes that is used to determine impairment of the nervous system.Preoperative Care: 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)Pulsatile Flow: Rhythmic, intermittent propagation of a fluid through a BLOOD VESSEL or piping system, in contrast to constant, smooth propagation, which produces laminar flow.Databases as Topic: 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)Intracranial Embolism and Thrombosis: 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.Tissue Adhesives: Substances used to cause adherence of tissue to tissue or tissue to non-tissue surfaces, as for prostheses.Paraparesis: 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.Emergencies: Situations or conditions requiring immediate intervention to avoid serious adverse results.Stress, Mechanical: 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.Kaplan-Meier Estimate: 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)Cardiovascular Surgical Procedures: Surgery performed on the heart or blood vessels.Alloys: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.Arterio-Arterial Fistula: Abnormal communication between two ARTERIES that may result from injury or occur as a congenital abnormality.Retroperitoneal Space: 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.Carotid Arteries: 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.Laparotomy: Incision into the side of the abdomen between the ribs and pelvis.Takayasu Arteritis: 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.Doxycycline: A synthetic tetracycline derivative with similar antimicrobial activity.Cerebellum: 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.Tuberculosis, Cardiovascular: Pathological conditions of the CARDIOVASCULAR SYSTEM caused by infection of MYCOBACTERIUM TUBERCULOSIS. Tuberculosis involvement may include the HEART; the BLOOD VESSELS; or the PERICARDIUM.Thromboembolism: Obstruction of a blood vessel (embolism) by a blood clot (THROMBUS) in the blood stream.Graft Occlusion, Vascular: Obstruction of flow in biological or prosthetic vascular grafts.Hematoma, Subdural, Acute: 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.Hemoptysis: 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.Survival Analysis: 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.Popliteal Vein: The vein formed by the union of the anterior and posterior tibial veins; it courses through the popliteal space and becomes the femoral vein.Equipment and Supplies: Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures.Catheterization, Peripheral: Insertion of a catheter into a peripheral artery, vein, or airway for diagnostic or therapeutic purposes.Emergency Treatment: 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.Reproducibility of Results: 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.Retroperitoneal Fibrosis: 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.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Fibromuscular Dysplasia: 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.Intraoperative Care: 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.Shear Strength: 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.Cardiac Surgical Procedures: Surgery performed on the heart.Basal Ganglia Cerebrovascular Disease: 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).Observer Variation: 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).Rupture: Forcible or traumatic tear or break of an organ or other soft part of the body.Embolism: Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream.Neurosurgery: A surgical specialty concerned with the treatment of diseases and disorders of the brain, spinal cord, and peripheral and sympathetic nervous system.Logistic Models: 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.

Serum triglyceride: a possible risk factor for ruptured abdominal aortic aneurysm. (1/956)

BACKGROUND: We aimed to determine the relationship between ruptured abdominal aortic aneurysm (AAA) and serum concentrations of lipids and apolipoproteins. METHODS: A cohort of 21 520 men, aged 35-64 years, was recruited from men attending the British United Provident Association (BUPA) clinic in London for a routine medical examination in 1975-1982. Smoking habits, weight, height and blood pressure were recorded at entry. Lipids and apolipoproteins were measured in stored serum samples from the 30 men who subsequently died of ruptured AAA and 150 matched controls. RESULTS: Triglyceride was strongly related to risk of ruptured AAA. In univariate analyses the risk in men on the 90th centile of the distribution relative to the risk in men on the 10th (RO10-90) was 12 (95% confidence interval [CI] : 3.8-37) for triglyceride, 5.5 (95% CI: 1.8-17) for apolipoprotein B (apoB) (the protein component of low density lipoprotein [LDL]), 0.15 (95% CI : 0.04-0.56) for apo A1 (the protein component of high density lipoprotein [HDL]), 3.7 (95% CI: 1.4-9.4) for body mass index and 3.0 (95% CI: 1.1-8.5) for systolic blood pressure. Lipoprotein (a) (Lp(a)) was not a significant risk factor (RO10-90 = 1.6, 95% CI: 0.6-3.0). In multivariate analysis triglyceride retained its strong association. CONCLUSION: Triglyceride appears to be a strong risk factor for ruptured AAA, although further studies are required to clarify this. If this and other associations are cause and effect, then changing the distribution of risk factors in the population (by many people stopping smoking and adopting a lower saturated fat diet and by lowering blood pressure) could achieve an important reduction in mortality from ruptured AAA.  (+info)

Transcatheter arterial embolization for impending rupture of an isolated internal iliac artery aneurysm complicated with disseminated intravascular coagulation. (2/956)

A 90-year-old male, with impending rupture of an isolated internal iliac artery aneurysm (IIAA) complicated with disseminated intravascular coagulation (DIC) was successfully treated with transcatheter arterial embolization (TAE). After TAE, enlargement of the aneurysm was arrested and coagulation-fibrinolytic abnormalities induced by DIC improved without severe complications. Although IIAA is relatively rare, the post-operative mortality of patients with ruptures is reportedly high. We assessed the usefulness of this procedure for impending rupture of IIAA, especially for patients in high risk groups.  (+info)

Combination therapy of fasudil hydrochloride and ozagrel sodium for cerebral vasospasm following aneurysmal subarachnoid hemorrhage. (3/956)

Fasudil hydrochloride is a new type of intracellular calcium antagonist, different from the calcium entry blockers that are commonly employed for clinical use. Since September 1995, the combination of fasudil hydrochloride and ozagrel sodium, an inhibitor of thromboxane A2 synthesis, has been used to treat 60 patients at risk of cerebral vasospasm after aneurysmal subarachnoid hemorrhage. The effectiveness of this combination therapy was investigated by comparison with the outcome of 57 patients previously treated with only ozagrel sodium. The combination therapy was significantly more effective (p < 0.01) in reducing the incidence of low density areas on computed tomography scans, and reduced, but not significantly, the occurrence of symptomatic vasospasm. The combination therapy of fasudil hydrochloride and ozagrel sodium has superior effectiveness over only ozagrel sodium in treating patients at risk of vasospasm after aneurysmal subarachnoid hemorrhage.  (+info)

Significance of acute cerebral swelling in patients with sylvian hematoma due to ruptured middle cerebral artery aneurysm, and its management. (4/956)

A retrospective study of 75 patients treated surgically for ruptured middle cerebral artery (MCA) aneurysm within 48 hours evaluated clinical grade at admission, secondary development and management of cerebral swelling associated with space-occupying hematoma, cerebral infarction caused by vasospasm, development of hydrocephalus, and clinical outcome. Clinical grade at admission was significantly better in patients without than in those with hematoma (p < 0.01). Twenty-seven patients with sylvian hematoma caused by ruptured MCA aneurysm often developed ipsilateral cerebral swelling in the early period after subarachnoid hemorrhage. Seventeen of these patients developed serious cerebral swelling and received barbiturate therapy. Nine of these 17 patients had good outcome, but six patients died of cerebral swelling. The incidence of hydrocephalus was significantly higher in patients with than in those without hematoma (p < 0.01). The incidence of infarction was more pronounced in patients with sylvian hematoma. Clinical outcome was significantly better in patients without than in those with sylvian hematoma (p < 0.01). Development of cerebral swelling in patients with sylvian hematoma due to ruptured MCA aneurysm has a significant effect on outcome, and improvements in management are required.  (+info)

Rupture mechanism of a thrombosed slow-growing giant aneurysm of the vertebral artery--case report. (5/956)

A 76-year-old male developed left hemiparesis in July 1991. The diagnosis was thrombosed giant vertebral artery aneurysm. He showed progressive symptoms and signs of brainstem compression, but refused surgery and was followed up without treatment. He died of rupture of the aneurysm and underwent autopsy in March 1995. Histological examination of the aneurysm revealed fresh clot in the aneurysmal lumen, old thrombus surrounding the aneurysmal lumen, and more recent hemorrhage between the old thrombus and the inner aneurysmal wall. The most important histological feature was the many clefts containing fresh blood clots in the old thrombus near the wall of the distal neck. These clefts were not lined with endothelial cells, and seemed to connect the lumen of the parent artery with the most peripheral fresh hemorrhage. However, the diameter of each of these clefts is apparently not large enough to transmit the blood pressure of the parent artery. Simple dissection of the aneurysmal wall by blood flow in the lumen through many clefts in the old thrombus of the distal neck may be involved in the growth and rupture of thrombosed giant aneurysms of the vertebral artery.  (+info)

Management of true aneurysms of the pancreaticoduodenal arteries. (6/956)

OBJECTIVE: To review the authors' recent experience and that of the literature since 1973 and to provide management guidelines for true aneurysms of the pancreaticoduodenal arteries (PDA). SUMMARY BACKGROUND DATA: True aneurysms of the PDA are rare, with a total of only 52 cases reported since 1973. METHODS: Six patients were admitted to the authors' institution between 1985 and 1995 for rupture of a true aneurysm of the PDA. They were analyzed with regard to the mode of presentation, preoperative workup, management, and outcome. RESULTS: All patients had severe epigastric pain from retroperitoneal hemorrhage. Computed tomography scanning and angiography were performed in all cases. Aneurysms ranged from 0.7 to 1.2 cm (median 0.9 cm). The celiac axis was stenotic or occluded in five cases. Three patients underwent emergency pancreatoduodenectomy. Two of them survived. In one case, section of the median arcuate ligament was associated with the procedure, and the patient died from an aortic dissection. Embolization was performed in the last three patients. The procedure was definitive in two cases. In one, hemorrhage recurred 8 days later and required surgical ligation of the bleeding artery. CONCLUSIONS: The authors recommend rapid treatment of all true aneurysms of the PDA. Because most of these aneurysms result from a stenosis of the celiac axis, selective embolization may help to preserve patency of the PDA and should, therefore, be the primary therapeutic choice in ruptured aneurysms. Close follow-up is mandatory because of possible recurrent bleeding. Appropriate and expeditious management of true PDA aneurysms should help reduce the mortality rate.  (+info)

Surgical treatment of internal carotid artery anterior wall aneurysm with extravasation during angiography--case report. (7/956)

A 54-year-old female presented subarachnoid hemorrhage from an aneurysm arising from the anterior (dorsal) wall of the internal carotid artery (ICA). During four-vessel angiography, an extravasated saccular pooling of contrast medium emerged in the suprasellar area unrelated to any arterial branch. The saccular pooling was visualized in the arterial phase and cleared in the venophase during every contrast medium injection. We suspected that the extravasated pooling was surrounded by hard clot but communicated with the artery. Direct surgery was performed but major premature bleeding occurred during the microsurgical procedure. After temporary clipping, an opening of the anterior (dorsal) wall of the ICA was found without apparent aneurysm wall. The vessel wall was sutured with nylon thread. The total occlusion time of the ICA was about 50 minutes. Follow-up angiography demonstrated good patency of the ICA. About 2 years after the operation, the patient was able to walk with a stick and to communicate freely through speech, although left hemiparesis and left homonymous hemianopsia persisted. The outcome suggests our treatment strategy was not optimal, but suture of the ICA wall is one of the therapeutic choices when premature rupture occurs in the operation.  (+info)

Evaluation of cerebral aneurysms with high-resolution MR angiography using a section-interpolation technique: correlation with digital subtraction angiography. (8/956)

BACKGROUND AND PURPOSE: The objective was to evaluate the results of high-resolution, fast-speed, section-interpolation MR angiography and digital subtraction angiography (DSA), thereby examining the potential use of a primary noninvasive screening test for intracranial aneurysms. METHODS: The images were obtained in 39 cerebral aneurysmal lesions from 30 patients with a time-of-flight MR angiographic technique using a 1.5-T superconducting MR system. The total image volume was divided into four slabs, with 48 partitions each. To save time, only 24 phase-encoded steps were measured and interpolated to 48. The parameters used included 30/6.4 (TR/TE), a flip angle of 25 degrees , a 160x512 matrix, a field of view of 150x200, 7 minutes 42 seconds of scan time, an effective thickness of 0.7 mm, and an entire thickness of 102.2 mm. Maximum intensity projection was used for the image analysis, and a multiplanar reconstruction technique was used for patients with intracranial aneurysms. RESULTS: Among 39 intracranial aneurysmal lesions in 30 patients, 21 were ruptured and 18 were unruptured. Twelve lesions were less than 2 mm in size, 12 were 3 to 5 mm, 12 were 6 to 9 mm, and three were larger than 10 mm. At initial examinations, 38 of 39 aneurysmal lesions were detected by both MR angiography and DSA, with 97% sensitivity. In confirming aneurysms in neck and parent vessels, multiplanar reconstruction was successful in detecting all 39 aneurysms, whereas MR angiography was successful in detecting 27 (69%) and DSA was successful in detecting 32 (82%) of the lesions. CONCLUSION: High-resolution MR angiography with a section-interpolation technique showed equal results to those of DSA for the detection of intracranial aneurysms and may be used as a primary noninvasive screening test. In the evaluation of aneurysms in neck and parent vessels, the concurrent use of MR angiography and multiplanar reconstruction was far superior to the use of either MR angiography or DSA alone.  (+info)

*Charcot-Bouchard aneurysm

Charcot-Bouchard aneurysms are a common cause of cerebral hemorrhage. If a Charcot-Bouchard aneurysm ruptures, it will lead to ... Charcot-Bouchard aneurysms (also known as miliary aneurysms or microaneurysms) are aneurysms of the brain vasculature which ... Charcot-Bouchard aneurysms are aneurysms in the small penetrating blood vessels of the brain. They are associated with ... As with any aneurysm, once formed they have a tendency to expand and eventually rupture, in keeping with the Law of Laplace. ...

*Guglielmi detachable coil

It is advantageous in treating early ruptured cerebral aneurysms for patients in critical condition. The short and medium term ... Upon reaching the aneurysm, GDC coils are released from the microcatheter into the aneurysm sac. Detachment is triggered by a ... If endothelial cells successfully grow across the aneurysm neck, blood flow will no longer enter the aneurysm, preventing ... Cerebral aneurysm Endovascular coiling "Guglielmi Detachable Coils Aneurysm Embolization". Emory Healthcare. Retrieved 2015-11- ...

*Intracranial aneurysm

The risk of rupture from a cerebral aneurysm varies according to the size of an aneurysm, with the risk rising as the aneurysm ... The risk of rupture is less than a percent for aneurysms of this size. The prognosis for a ruptured cerebral aneurysm depends ... Larger aneurysms have a greater tendency to rupture, though most ruptured aneurysms are less than 10 mm in diameter. The risk ... Generally, aneurysms larger than 7 mm in diammeter should be treated because they are prone for rupture. Meanwhile, aneurysms ...

*Aortic dissection

About 29% of late deaths following surgery are due to rupture of either a dissecting aneurysm or another aneurysm. In addition ... These new aneurysms are more likely to rupture, due to their thinner walls. Serial imaging of the aorta is suggested, with MRI ... The relative risk of late rupture of an aortic aneurysm is 10 times higher in individuals who have uncontrolled hypertension, ... Rupture leads to hemorrhaging into a body cavity, and prognosis depends on the area of rupture. Retroperitoneal and pericardial ...

*Abdominal aortic aneurysm

In those with an aneurysm less than 5.5 cm the risk of rupture in the next year is less than 1%. Among those with an aneurysm ... Alternative less often used methods for visualization of an aneurysm include MRI and angiography. An aneurysm ruptures if the ... Large aneurysms can sometimes be felt by pushing on the abdomen. Rupture may result in pain in the abdomen or back, low blood ... A ruptured AAA with an open arrow marking the aneurysm and the closed arrow marking the free blood in the abdomen Sagittal CT ...

*Confabulation

Alexander, M. P.; Freedman, M (1984). "Amnesia after anterior communicating artery aneurysm rupture". Neurology. 34 (6): 752-57 ... Most known cases of confabulation are symptomatic of brain damage or dementias, such as aneurysm, Alzheimer's disease, or ... rupture of the anterior or posterior communicating artery, subarachnoid hemorrhage, and encephalitis are also possible causes ... "Memory disturbances following anterior communicating artery rupture". Annals of Neurology. 31 (5): 473-80. doi:10.1002/ana. ...

*Masakane Yonekura

On 26 August 2014, Yonekura died of an abdominal aortic aneurysm rupture. He was 80. Zatoichi Meets Yojimbo (1970) Kanashimi no ...

*Barrel Man (Denver Broncos)

McKernan had serious health issues in 2003, after an abdominal aneurysm ruptured. After that time he was restricted by doctors ...

*Aortic rupture

The most common cause is an abdominal aortic aneurysm that has ruptured spontaneously. Aortic rupture is distinct from aortic ... The most common cause of aortic rupture is a ruptured aortic aneurysm. Other causes include trauma and iatrogenic (procedure- ... Aortic rupture is the rupture or breakage of the aorta, the largest artery in the body. Aortic rupture is a rare, extremely ... Traumatic aortic rupture Aortic rupture secondary to an aortic aneurysm Tearing pain, located in the abdomen, flank, groin, or ...

*Aditya Dev

He died on 13 September 2012 after a brain aneurysm rupture. "Romeo Dev, the world's smallest bodybuilder - Telegraph". 2008-04 ... In summer of 2008, Dev was diagnosed with aneurysms which, if left untreated, are a serious threat to his life. Aneurysms and ...

*Aneurysm

Without treatment, these aneurysms will ultimately progress and rupture. Infection. A mycotic aneurysm is an aneurysm that ... There may be no symptoms present at all until the aneurysm ruptures. For an aneurysm that has not ruptured the following ... or life-threatening bleeding if the aneurysm ruptures. Less than 3% of abdominal aortic aneurysms are mycotic aneurysms. ... including coronary artery aneurysms, ventricular aneurysms, aneurysm of sinus of Valsalva, and aneurysms following cardiac ...

*Traumatic aortic rupture

Aortic rupture can also be caused by non-traumatic mechanisms, particularly abdominal aortic aneurysm rupture. The injury is ... Thus traumatic aortic rupture is a common killer in automotive accidents and other traumas, with up to 18% of deaths that occur ... Traumatic aortic rupture is treated with surgery. However, morbidity and mortality rates for surgical repair of the aorta for ... Traumatic aortic rupture, also called traumatic aortic disruption or transection, is a condition in which the aorta, the ...

*Cheesewiring

... fenestration of a chronic aortic dissection flap for endovascular repair of a contained aneurysm rupture". Journal of vascular ... and treatment of tendon rupture, when sutures pull through the tendon. The term can also be used for to name the process of ...

*Aortic aneurysm

The risk of rupture of an AAA is related to its diameter; once the aneurysm reaches about 5 cm, the yearly risk of rupture may ... Aortic aneurysms cause weakness in the wall of the aorta and increase the risk of aortic rupture. When rupture occurs, massive ... An aortic aneurysm can rupture from wall weakness. Aortic rupture is a surgical emergency, and has a high mortality even with ... Risk of aneurysm rupture is weighed against procedural risk. The diameter of the aneurysm, its rate of growth, the presence or ...

*Surgical Outcomes Analysis and Research

"Relative importance of aneurysm diameter and body size for predicting abdominal aortic aneurysm rupture in men and women." ... "Relative importance of aneurysm diameter and body size for predicting abdominal aortic aneurysm rupture in men and women". J ... 2012). "Endovascular vs open repair for ruptured abdominal aortic aneurysm". Journal of Vascular Surgery. 56 (1): 15-20. doi: ... "Comparative effectiveness of endovascular versus open repair of ruptured abdominal aortic aneurysm in the Medicare population ...

*Paul Brophy

... sustained a basilar artery aneurysm rupture with very destructive neurologic consequences. Following the rupture he ...

*Michel-Gaspard Coppenrath

... died of a ruptured aneurysm on 14 August 2008, aged 84. His survivors included his brother, the ... "Papeete's Catholic archbishop emeritus dies at 84 of ruptured aneurysm". Tahitipresse. 2008-08-17. Archived from the original ... "Papeete's Catholic archbishop emeritus dies at 84 of ruptured aneurysm". Tahitipresse. Pacific Magazine. 2008-08-17. Archived ...

*Hubert Coppenrath

"Papeete's Catholic archbishop emeritus dies at 84 of ruptured aneurysm". Tahitipresse. 2008-08-17. Retrieved 2008-08-26. [dead ...

*Anthony Howard (journalist)

He died in London, after surgery for a ruptured aneurysm. Harry Wallop "Anthony Howard dies", Daily Telegraph (blog), 19 ...

*Armand Lévy (mineralogist)

He died of a ruptured aneurysm at the age of 45. Armand Lévy described many mineral species, such as babingtonite, beudantite, ...

*Paul Sussman

On 31 May 2012 Paul died suddenly after suffering a ruptured aneurysm. He is survived by his wife and two sons. The Lost Army ...

*Cyprian Michael Iwene Tansi

He died the same day as a result of Arteriosclerosis and ruptured aneurysm. The date of his death was 20 January 1964. His body ...

*Aneurysm of sinus of Valsalva

A ruptured aneurysm typically leads to an aortocardiac shunt and progressively worsening heart failure. An aneurysm of the ... Aortic aneurysm Thoracic aortic aneurysm Abdominal aortic aneurysm Topi, Bernard; John Jinu (2012). "An uncommon cause of a ... A ruptured Sinus of Valsalva abscess represents a surgical emergency. This type of aneurysm is typically congenital and may be ... The manifestations appear depending on the site where the sinus has ruptured. For example, if the sinus ruptures in a low ...

*Dennis J. Roberts

Roberts died while in surgery for a ruptured aneurysm in Rhode Island Hospital in Providence. He was a Catholic. "La Salle ...

*William Guarnere

Guarnere died of a ruptured aneurysm at Jefferson University Hospital, Philadelphia on 8 March 2014. He was 90 years old. He is ...

*List of ICD-9 codes 390-459: diseases of the circulatory system

... ruptured (441.4) Abdominal aortic Aneurysm, w/o rupture (441.9) Abdominal Aortic Aneurysm, unspecified (442) Other aneurysm ( ... Aneurysm and dissection of heart (414.10) Aneurysm of heart (wall) (414.11) Aneurysm of coronary vessels (414.12) Dissection of ... Rupture of chordae tendineae (429.6) Rupture of papillary muscle (429.7) Certain sequelae of myocardial infarction not ... Aortic aneurysm and dissection (441.0) Aortic Dissection (441.3) Abdominal Aortic Aneurysm, ...

*Paul Dixon (entertainer)

Complications later led to a ruptured aneurysm, which claimed Dixon's life on December 28, 1974. Avco executives concluded that ...
Details of the image Segmental arterial mediolysis with gastroduodenal artery aneurysm Modality: DSA (angiography) (Celiac axis)
Open peer review is a system where authors know who the reviewers are, and the reviewers know who the authors are. If the manuscript is accepted, the named reviewer reports are published alongside the article. Pre-publication versions of the article are available by contacting [email protected] You can find further information about the peer review system here.. ...
This investigation further develops our prior observations made with retrospective data with 40 prospectively identified and recruited patients presenting with incidental or ruptured IAs. Additionally, we demonstrate the ease of use and practical use of SR in a real-world situation with blinded technologists performing SR evaluation off 2-dimensional angiographic images at the time of initial presentation. The ruptured cohort demonstrated statistically significantly larger SRs compared with the unruptured cohort, suggesting that SR may provide a valuable real-world tool in the assessment of IA rupture risk.14. IA size continues to be an efficient and widely used measure for IA rupture risk assessment. Multiple previous studies, as well as our data, demonstrate that ruptured IAs are larger than unruptured IAs.2,11 Although easy to measure and very useful, size alone does not take into account additional characteristics or hemodynamics that may increase rupture risk. Specifically, IA size may miss ...
Preoperative Nursing Care for a Patient with Cerebral Artery Aneurysm Rupture Ljubov Kinner North Estonian Medical Centre Foundation, Estonia Mentor: Eha Hõrrak, MA
Introduction: Various factors have been nominated for the rupture of unruptured cerebral aneurysms including size, shape and specific locations of aneurysms. Size ratio, which is the quotient of maximum size of the aneurysm divided by the diameter of the adjacent parent artery, has also been nominated as a strong indicator to discriminate ruptured versus unruptured cerebral aneurysms. However, this has never been tested as a risk in the prospective cohort. In this paper, we have assimilated size ratio in cases of UCAS Japan using reported average parent arterial size and evaluated its value.. Methods: We used average main intracranial artery diameter reported in anatomical studies as follows: AComA: 1.5mm, MCA: 3.9mm, ICA: 4.3mm, PComA: 1.3mm, BA: 4.1mm and VA: 3.9mm. UCAS Japan cohort, which is a Japanese prospective cohort of unruptured cerebral aneurysms in Japan, were utilized (6,312 aneurysms with 11,011 aneurysm*year follow-up).. Result: Rupture risks according to this assimilated size ...
Objectives: To determine under what circumstances repair of unruptured intracranial aneurysms may be beneficial. Methods: A life expectancy analysis of patients with unruptured aneurysms with and without repair based on prospective data from the International Study of Unruptured Intracranial Aneurysms (ISUIA). Results: Life years are lost at all ages by repairing anterior circulation aneurysms under 7 mm in diameter in patients with no history of a subarachnoid haemorrhage from another aneurysm (incidental). For all other aneurysms the number of life years saved by repair is dependent on the patients age at the time when repair is undertaken. Between 2 and 40 years are saved by repairing aneurysms in patients aged 20 years. These benefits fall to 0 when remaining life expectancy falls below 15-35 years, corresponding to the age range of 45-70 years. Conclusions: Repair of unruptured aneurysms benefits patients harbouring them by improving life expectancy except in certain circumstances. The ...
TY - JOUR. T1 - Management of anterior inferior cerebellar artery aneurysms. T2 - Endovascular treatment and clinical outcome. AU - Suh, S. H.. AU - Kim, D. J.. AU - Kim, D. I.. AU - Kim, Byungmoon. AU - Chung, T. S.. AU - Hong, C. K.. AU - Jung, J. Y.. PY - 2011/1/1. Y1 - 2011/1/1. N2 - BACKGROUND AND PURPOSE: AICA aneurysms are rare and a challenge to treat surgically. We present our experience of the angiographic results and the clinical outcomes for 9 AICA aneurysms treated by EVT. MATERIALS AND METHODS: Between 1997 and 2009, EVT was attempted for 9 AICA aneurysms. Six patients presented with SAH, and 3 aneurysms were found incidentally. The location of the aneurysms was the proximal AICA in 7 and the distal AICA in 2. Five aneurysms originated from an AICA-PICA variant. Clinical outcomes and procedural complications were evaluated, and angiography was performed 6, 12, and 24 months after embolization to confirm recanalization of the coiled aneurysm. RESULTS: EVT was technically successful ...
Background To compare the effects of endovascular coiling and neurosurgical clipping in patients with unruptured intracranial aneurysm.
Unruptured intracranial aneurysms are common and occurred in approximately 1%-2% of the population, as reviewed by Vlak et al.19 Because most unruptured intracranial aneurysms are asymptomatic and are found incidentally, treatment should be considered after balancing the natural history of the aneurysm with the risk posed by the treatment. Prospective data for the natural history of unruptured intracranial aneurysms by the International Study of Unruptured Intracranial Aneurysms and UCAS Japan investigators showed that the annual rupture rate increased for aneurysms that were ≥7 mm. The presence of a daughter sac and a history of SAH increased the rupture rate.5,7 In the Japanese cohort, the annual rupture rates for paraclinoid aneurysms were approximately 0.1%, 1%, and 10% when they were ,7 mm, 7-24 mm, and ,25 mm, respectively, in size.7 Analysis of our data showed that the 6-month morbidity and mortality rates for aneurysms ≥7 mm were acceptably low (0.8% and 0%, respectively). The ...
Results From December 1996 to August 2012, 281 patients underwent 331 attempted endovascular procedures for treatment of an MCA aneurysm. Of these, 326 procedures were completed (5 attempted and failed). 217 procedures used balloon assistance. 85 were primary coilings. 4 were with the Pipeline device. 25 were with stent assistance. 17 were retreatments. 92 were for ruptured aneurysms. Mean aneurysm size was 6.6 mm.. The rate of intraprocedural aneurysm rupture or vessel perforation was 2.7% (9 of 331). 2 resulted in disabling strokes (mRS,2 at discharge) in patients with unruptured aneurysms, comprising the only patients with new disabling strokes with unruptured aneurysms in the entire cohort (0.6%, 2 of 331).. The rate of intraprocedural thromboembolic events was 13.9% (46 of 331), mostly in patients with acute subarachnoid haemorrhage (SAH, p,0.0001). Of these, 10 were symptomatic (3.0%); 9 of the 10 had SAH. Of the 10, 3 were transient ischaemic attacks (TIA) and 7 were strokes in the ...
To the Editor:. We read with interest the results of a large series of patients with intracranial aneurysms treated with stent-assisted coiling.1 A series of 216 patients with aneurysms (181 unruptured and 35 ruptured) were treated with this technique. Direct procedure-related mortality occurred in 10 of 216 (4.6%) and procedure-related permanent neurological deficit occurred in 16 of 216 (7.4%). In other words, 12% of patients either died or had permanent neurological deficit as a direct consequence of the treatment. This is an alarmingly high rate of serious complications, especially in a population harboring mostly unruptured aneurysms (with benign natural history) located on sites that are easily accessible for surgery. We cannot think of an unruptured aneurysm with a cumulative risk that outweighs this high complication rate. It is difficult to conceive that future patients with incidentally found unruptured aneurysms will consent to a proposed therapy with an almost 1-in-8 chance of death ...
Objectives: The aim of this study was to compare the pre- and postoperative health-related quality-of-life (QOL) and psychological state of patients with asymptomatic unruptured intracranial aneurysms (ICAs) who underwent elective surgery. Methods: Of 67 patients who underwent neck clipping of ICAs, we assessed the QOL of 61 patients using Short Form-36 (SF-36); their psychological state was rated on the Hospital Anxiety and Depression Scale (HADS) before, 3 months, and 1- and 3 years after treatment. Results: The preoperative mean scores for each of the 8 SF-36 domains except bodily pain were significantly lower in the study- than the reference population. Fourteen patients (20.9%) experienced surgical complications defined as neurological deterioration and/or abnormal CT findings within 30 days of the operation. Despite some complications, the QOL of all operated patients returned to the mean level of the reference population 3 years post-treatment. At 3 months after surgery, the scores for ...
This study showed that coiling is associated with less harm than clipping in terms of disability measured by mRS and GOS, neurological and cardiac complications, but all of the studies included were observational. It is difficult to randomise controlled trials of surgical intervention in terms of such factors; consequently, observational studies may be the best available evidence. This is the first comprehensive systematic review and meta-analysis comparing clipping and coiling in patients with UIA. King et al. [11] and Raaymakers et al. [12] found mortality rates of 1.0% and 2.6% and morbidity rates of 4.1% and 10.9%, respectively, in meta-analyses of the outcome of clipping for UIA. Ontario [13] performed a systematic review on the outcome of clipping for intracranial aneurysms including UIA. These previous studies were systematic reviews of only a single intervention and did not compare interventions with one another. Therefore, the present study is meaningful despite some ...
suggested by others 5, 15, 19 in multiple-aneurysm patients who had only one aneurysm treated. In addition, the percentage of the population suffering a rupture of an intact aneurysm is comparable to that found by Wiebers, et al. , 29 who studied the natural history of unruptured intracranial aneurysms in 65 patients followed for an average of 8.2 years. Eight of their 65 patients (12.3%) suffered a subsequent hemorrhage during the first decade after the initial bleed. The present study has an almost identical follow-up period (8.1 years), during which at least three. ...
The endovascular treatment of cerebral aneurysms was revolutionized by the introduction of the GDCs, a system that proved effective, safe, and "user-friendly."1,2 The advantages of the GDC system allowed for the spread of its use worldwide in a short period and resulted in numerous publications reporting on its use.. Over the next few years, coiling was gaining ground as the preferred method of treatment of aneurysms. When the results of the International Study on Unruptured Intracranial Aneurysms8 and of the International Subarachnoid Aneurysm Trial (ISAT)9 were published, a controversy was raised over their interpretation. Nevertheless, the final effect of these studies, combined with an ever-increasing number of publications reporting on the efficacy and safety of coiling,3-7 was that endovascular therapy is now considered in many parts of the world the method of choice for the treatment of intracranial aneurysms, both ruptured and unruptured. Despite the controversy and the reactions to the ...
Gemayel G, Verdon G, Murith N, Huber C. Rescue of a Failing Endovascular Infrarenal Aortic Repair Using an Off-The-Shelf Branched Endograft. Ann Vasc Surg. 2017 Jul 21. Gemayel G et al. Traitement des anévrismes aortiques à lère endovasculaire. Rev Med Suisse 2017; 13: 519-23. Gemayel G, A Rare Cause of Pulmonary Embolism: Popliteal Vein Aneurysm. Eur J Vasc Endovasc Surg. 2016 Jun;51(6):809. Gemayel G, Mootoosamy P, Murith N, Kalangos A. Embolization of a large rapidly growing aortic pseudo-aneurysm not amenable to open or endovascular repair. Ann Vasc Surg. 2016 May;33:230.e15-8. Myers PO, Gemayel G, Mugnai D, Murith N, Kalangos A. Endovascular exclusion of aortoesophageal fistula after coarctation extraanatomical bypass. Ann Thorac Surg.. 2014 Jul;98(1):314-6. Gemayel G, Murith N, Kalangos A. Off-label use of a reversed flared endurant iliac limb stengraft for the management of a life-threatening internal iliac artery aneurysm rupture. Vascular. 2014 Oct;22(5):381-4. Gariani K, Righini M, ...
The string of beads sign is the description typically given to the appearance of the renal artery in fibromuscular dysplasia (FMD) but may also be used to describe the appearance of splanchnic arteries in segmental arterial mediolysis (SAM). It r...
In this sample of patients treated in the United States from 2001 to 2008, we have found that endovascular coiling of unruptured intracranial aneurysms was associated with significantly less morbidity and mortality than surgical clipping. While we cannot know for any individual case in our study the relative merits of endovascular therapy versus open surgery versus observation, the results from the NIS data base suggest that patients treated in the United States with surgery generally face a significantly higher risk of adverse outcome than patients treated with endovascular therapy. This trend does not necessarily imply that all the patients treated with surgery should have been offered endovascular therapy, because for many of these patients, endovascular therapy may have been an inadequate option. While some have recommended that in treating unruptured cerebral aneurysms, "microsurgical clipping rather than endovascular coiling should be the first treatment choice in low-risk cases,"4 our ...
Background and Purpose-The purpose of the present study was to calculate the prevalence and relative risk of unruptured incidental intracranial aneurysms IAs among families with IA cases compared with the general population in one geographically defined area in East Finland and to identify the risk group that could benefit most from screening...
Although treatment of a ruptured aneurysm is accepted as an emergency, indication for treatment of unruptured intracranial aneurysms (IAs) is still being discussed.
Ive been diagnosed with two mirror aneurysms with sacs in opthalmic artery. Have been given advise for clipping or flow diverter. Im looking for others who have or have had treated such aneurysm. Thanks to get In touch!
Ive been diagnosed with two mirror aneurysms with sacs in opthalmic artery. Have been given advise for clipping or flow diverter. Im looking for others who have or have had treated such aneurysm. Thanks to get In touch!
Go through More thanks a ton for this reply, ur ideas r of wonderful enable, i checked the angiogram report finished nine yrs in the past. Examine Much more Unruptured cerebral aneurysm can be investigated with cerebral arteriogram or angiogram. A health care provider inserts a protracted thin tube into an artery in your legs and guides it by your blood vessels for the arteries in your neck that bring on your brain. A professional injects dye in the arteries, which produces a map of the arteries and the aneurysm on xrays. CT can reveal blood move inside your Mind and present aneurysm area. Study Far more (Slight degeneration of lessen lumbar discs but very little to lead to my signs.) He also asked for Yet another CT angiogram which was also crystal clear. Went to your vascular surgeon and apart from slight varacose veins everything regular. Went into a rheumatologist and all ordinary there also. GP has Test all bloods and all Alright. My father is pernicious anemic so I do check that acquire ...
Unruptured saccular intracranial aneurysm (sIA) is a relatively common disease (2%-3% prevalence).1 Asymptomatic unruptured sIAs are diagnosed increasingly frequently due to improved availability of magnetic resonance imaging (MRI) scans. Although sIAs may rupture causing devastating hemorrhage with mortality of 30% to 50%,2 most sIAs never rupture.3 The pathobiology of sIA formation and rupture need to be elucidated in…
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Jauffrais, T. , Herrenknecht, C. , Séchet, V. , Sibat, V. , Tillmann, U. , Krock, B. , Kilkoyne, J. , Miles, C. O. , McCarron, P. , Amzil, Z. and Hess, P. (2012 ...
Clinical presentation A middle-aged patient was referred for treatment of a bilobed saccular aneurysm identified on a CT angiogram performed for a subarachnoid hemorrhage which occurred 20 days prior to presentation. A diagnostic angiogram showed a bilobed wide-necked saccular aneurysm at the AICA origin with the AICA arising from the dome of the aneurysm and also supplying the territory of the posterior inferior cerebellar artery. The therapeutic procedure involved trans-aneurysmal cannulation of the AICA with the microcatheter left in situ. Another microcatheter was maneuvered into the larger dome of the aneurysm. A stent was then deployed in the basilar artery, jailing the previous microcatheter in the aneurysm. Helical Guglielmi detachable coils were deployed in the aneurysm resulting in complete occlusion of the aneurysm with preservation of the AICA.. ...
ISAT 2005": Molyneux AJ, Kerr RS, Yu LM, Clarke M, Sneade M, Yarnold JA, Sandercock P; International Subarachnoid Aneurysm Trial (ISAT) Collaborative Group. International subarachnoid aneurysm trial (ISAT) of neurosurgical clipping versus endovascular coiling in 2143 patients with ruptured intracranial aneurysms: a randomised comparison of effects on survival, dependency, seizures, rebleeding, subgroups, and aneurysm occlusion. Lancet 2005 Sep 3-9;366(9488):809-17 ...
BACKGROUND AND PURPOSE: Because the long-term security of endovascular treatments remains uncertain, a follow-up study of the patients treated in the International Subarachnoid Aneurysm Trial was performed to compare the frequency, timing, and consequences of aneurysm recurrence. METHODS: Patient data were reclassified by actual treatment performed. Aneurysm and patient characteristics, including occlusion grades, time and type of retreatment, and clinical outcomes, were compared. The relationship between these variables and late retreatment as a surrogate for recurrence was analyzed by means of the Cox proportional hazards model. RESULTS: Retreatment was performed in 191 of 1096 (17.4%) patients after primary endovascular coiling (EVT) and in 39 of 1012 patients (3.8%) after neurosurgical clipping. After EVT, 97 (8.8%) patients were retreated early and 94 (9.0%) late, 7 (0.6%) after rebleeding and 87 (8.3%) without. The mean time to late retreatment was 20.7 months. After neurosurgical clipping, 30 (2
OBJECT: Endovascular treatment of very small aneurysms poses a significant technical challenge for endovascular therapists. The authors review their experience with a series of patients who had intracranial aneurysms smaller than 3 mm in diameter. METHODS: Between 1995 and 2006, 97 very small aneurysms (defined for purposes of this study as | 3 mm in diameter) were diagnosed in 94 patients who were subsequently referred for endovascular treatment. All patients presented after subarachnoid hemorrhage, which was attributed to the very small aneurysms in 85 patients. The authors reviewed the endovascular treatment, the clinical and angiographic results of the embolization, and the complications. RESULTS: Five (5.2%) of the 97 endovascular procedures failed, and these patients underwent craniotomy and clip ligation. Of the 92 aneurysms successfully treated by coil embolization, 64 (69.6%) were completely occluded and 28 (30.4%) showed minor residual filling or neck remnants on the immediate postembolization
... is an abnormal localized widening or ballooning of the wall of the basilar artery. Sometimes, this aneurysm puts a great stress on the artery wall and cause it to burst. Before the aneurysm bursts, symptoms include a sudden and unusually severe headache, nausea, vision impairment, vomiting, and loss of consciousness, or the individual may experience no symptoms at all. When the basilar artery aneurysm ruptures, it usually results in bleeding into the meninges or the brain itself, leading to a subarachnoid hemorrhage (SAH) or intracranial hematoma (ICH), either of which constitutes a stroke, which can cause the death or paralysis. Aneurysm of the basilar artery can be corrected with a basilar artery angioplasty. ...
We discuss a case with combined vestibulocochlear and facial neuropathy mimicking a less urgent peripheral vestibular pattern of acute vestibular syndrome (AVS). With initial magnetic resonance imaging read as normal, the patient was treated for vestibular neuropathy until headaches worsened and a diagnosis of subarachnoid hemorrhage was made. On conventional angiography, a ruptured distal right-sided aneurysm of the anterior inferior cerebellar artery was diagnosed and coiled. Whereas acute vestibular loss usually points to a benign peripheral cause of AVS, combined neuropathy of the vestibulocochlear and the facial nerve requires immediate neuroimaging focusing on the cerebellopontine angle. Imaging should be assessed jointly by neuroradiologists and the clinicians in charge to take the clinical context into account. ...
In recent years the endovascular treatment of intracranial aneurysms (coiling) has progressively gained recognition, particularly after the publication of the International Subarachnoid Aneurysm Trial (ISAT) in 2002. Despite the fact that in ISAT mid
Blood blister-like aneurysms (BBAs) are rare but challenging to treat owing to their fragile, thin walls and poorly defined necks. A right-sided aortic arch is an uncommon congenital cardiac anomaly with an estimated incidence of only 0.1% and presen
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. ...
The objective of the GELATIN registry is to prospectively evaluate intracranial aneurysm occlusion and retreatment rates as well as adverse event rates in patients undergoing balloon-assisted coiling using the MicroVention Scepter Occlusion Balloon Catheter and second-generation MicroVention hydrogel coils for treatment of previously treated or untreated ruptured and unruptured intracranial aneurysms ...
Many unruptured cerebral aneurysms can now be identified with CTA or MRA, without the more invasive catheter angiography. However, catheter angiography better diagnoses SAH. Angiography of any type is not perfect and can fail to identify small aneurysms of less than 3 mm.. Cerebral aneurysms may be treated surgically to reduce the risk of rupture, rebleeding, or brain damage from pressure the aneurysm places on brain tissue. Surgery to place a metal clip on the neck of an aneurysm that connects it to a parent vessel has been the standard treatment in the past. This procedure is major brain surgery and requires a craniotomy. A piece of the skull (skull flap) is sawed under general anesthesia and laid back for entry into the brain. This surgery has risks and the surgical risks for small aneurysms considerably exceed the risks of conservative (non-surgical) treatment.. A second surgical option has been the use of detachable coils of various sizes and shapes, which can be inserted without opening ...
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Hemodynamic stress toward the wall of intracranial artery with associated genuine defects of wall remodeling capacity is one of many hypotheses of subarachnoid aneurysm development. In addition, hemodynamic stress toward an aneurysm wall may play a very significant role for the rupture of an aneurysm creating acute Subarachnoid hemorrhage. We think the Wall Shear Stress (WSS) measurement toward an intracranial arterial wall and intracranial aneurysmal wall may provide valuable information for understanding of intracranial aneurysm development as well as predicting future morphological changes of aneurysm and possibly risk of future rupture. This study is significant especially in the management of unruptured subarachnoid arterial aneurysm patients and identifying patients who have higher rupture risks for active treatments such as surgical clipping or coiling to prevent unnecessary but potentially risky procedures.. Gadolinium MR Angiography with NOVA® Software will be used to measure the ...
When imaging patients for intracranial aneurysm, the goals are: (1) to assess the contour of the intracranial arteries, particularly in he regions of the ACOM (anterior communicating artery), PCOM (posterior communicating artery), ICA (internal carotid artery) bifurcation, MCA (middle cerebral artery) trifurcation, basilar tip, and PICA (posterior inferior cerebellar artery); (2) to assess the anatomy of the Circle of Willis and direction of flow, and; (3) to determine if there is evidence of a recent subarachnoid bleed
Flow diverters are endovascular devices that can reroute blood flow away from an aneurysm. This less invasive endovascular procedure is gaining acceptance as a safe and effective treatment for unruptured cerebral aneurysms.
Background: Ruptured tiny intracranial aneurysms (TIAs) have been challenging both for endovascular and neurosurgical interventions. Thus, we aimed to evaluate the safety and efficacy of low-profile visualized intraluminal support (LVIS) device in the treatment of ruptured TIAs (rTIAs). Material and Methods: Among 761 intracranial aneurysms which were treated either surgically or endovascularly, 3...
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Since the availability of endovascular treatment and the advantage of intraprocedural anticoagulation, an endovascular strategy has become the mainstay of their therapy. But in some cases selective aneurysm obliteration by the endovascular approach is impossible or associated with an unacceptable risk of morbidity. This is particularly true when the IDA is a blood blister-like aneurysm or when dissection affects peripheral branches of the internal carotid artery. The literature dealing with surgical treatment of IDAs in the anterior circulation is heterogeneous, and formulation of general recommendations concerning the surgical strategy remains difficult. The aim of a study was to conduct a systematic review of the current knowledge on incidence, pathogenesis, clinical presentation, and diagnostic procedures with a special emphasis on the surgical treatment of intracranial dissections of anterior circulation 2) ...
Subarachnoid haemorrhage (SAH) is a devastating neurological insult, and is increasingly understood as a multi-system condition initiated in the central nervous system. Perioperative investigation of patients presenting for aneurysm surgery often includes a routine electrocardiogram (ECG) which frequently reveals an abnormality. We describe a patient who presented with SAH and who was found to have significant Q waves on the ECG suggestive of a trans-mural myocardial infarction, despite a negative medical history for such an event. We brie-fly highlight the issues faced by the anaesthesiologist when dealing with the patient with SAH and ECG abnormality, and the implications for cardiovascular dysfunction.
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Hello. I hope someone can help me make sense of this. Due to severe headaches, I was given a brain MRI which showed a possible small aneurysm. A subsequent CTA verified that I do have a 4mm aneurysm...
RESULTS: Of 283 coiled patients with a total follow-up of 1778 patient-years (mean, 6.3 years), one patient had a recurrent SAH (0.4%) and 2 patients had a possible recurrent SAH. For recurrent SAH within the first 8 years after treatment, the cumulative incidence was 0.4% (95% CI, -0.4 to 1.2) after coiling versus 2.6% (95% CI, 1.2 to 4.0) after clipping (hazard ratio, 0.2; 95% CI, 0.03 to 1.6). For possible and confirmed recurrent SAH combined, the cumulative incidence was 0.7% (95% CI, 0.3 to 1.7) after coiling versus 3.0% (95% CI, 1.3 to 4.6) after clipping (hazard ratio, 0.7; 95% CI, 0.2 to 2.3 ...
I am a 35 year old female. I have been having problems with my head for a little while now. First it started where if I would turn my head to the RIGHT, it would hurt. I have also been noticing when I wake up in the morning, it would feel as if there was a hand around my neck although my breathing would be fine. I have just realized this morning that this feeling is the result of my lying flat on my stomache with my head turned to the RIGHT. I found this out because when I woke up this morning I had this feeling and then when I straightened my head, the feeling started going away. As soon as I turned my head back to the RIGHT, I could gradually feel it coming back again. I also frequently have sharp pains in the back of my head like just above my neck. These pains comes and goes and only last for seconds at the most. My eyes also stay extremely dry. I am not sure what this could be but I hope that someone on this site can give me some input. Thank you in advance ...
Unruptured brain aneurysms are typically completely asymptomatic. These aneurysms are typically small in size, usually less than one half inch in diameter. However, large unruptured aneurysms can occasionally press on the brain or the nerves stemming out of the brain and may result in various neurological symptoms. Any individual experiencing some or all of the following symptoms, regardless of age, should undergo immediate and careful evaluation by a physician.. ...
With the help of $8 million in federal stimulus funds, University of Cincinnati researchers will continue their efforts to identify genes responsible for the formation and rupture of intracranial aneurysms.
Vasculo-Behçet disease iVBD jis a special type of Behçet disease iBD jinvolving some vascular disorders like aneurysmal formation, arterial occlusion, and venous thrombosis in various vessels. VBD has a poor prognosis due to aneurysmal rupture or recurrence of vascular disorders despite optimal treatment. However, definite diagnosis in BD is made on the basis of clinical features, and early diagnosis is difficult. We report 2 patients whose first clinical symptoms were femoral-pseudoaneurysms. They received a diagnosis of VBD after surgery. The first patient was a 69-year-old man, who underwent autologous-vein patch closure of a perforated region in the left femoral artery. One year later, he had a pseudoaneurysm of the right profunda femoris artery, which was ligated. The second patient was a 51-year-old man, who underwent the interposition of the saphenous vein for defective artery due to left superficial femoral-pseudoaneurysm ...
Overview of diagnosis and treatment for MCA (middle cerebral artery) aneurysm provided by Farhad Limonadi MD, Palm Springs, California area neurosurgeon.
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​What is a cerebral aneurysm? What treatments are available? Learn more about this condition in this neurosurgeon-edited guide.
Aachen / Institut f r Textiltechnik der RWTH Aachen University (2015) [Journal Article, Poster]. Mitteilungen / Institut f r ...
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Downloadable (with restrictions)! The heavy dependence and inefficient utilization of biomass resources have contributed to the depletion of forest resources in Ethiopia, while the use of traditional cooking technology has also been linked to indoor air pollution and poor health. In response, the government and other institutions have pushed for the adoption of new cooking technologies, with limited success. This research examines the reasons underpinning the lack of widespread adoption, via duration analysis, correlating the speed of adoption of Mirte and Lakech cook stoves - two examples of new cooking technologies - in urban Ethiopia to socioeconomic factors. According to the duration analysis, adoption rates have steadily increased over time, while economic factors, such as product price, household income and household wealth, are, for the most part, important determinants of adoption behavior. There is also evidence that the availability of substitute technologies tends to hinder adoption, and that
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
A Guglielmi detachable coil (GDC) is a medical device made of platinum used in the treatment of brain aneurysms. It led to a revolutionary advance in the field of endovascular minimally-invasive surgery for the occlusion of cerebral vascular disease. Invented by Dr. Guido Guglielmi, Italian neurosurgeon and professor of UCLA interventional neuroradiology in 1990, and gradually introduced in the later 1990s as an alternative to invasive surgical clipping. In September 1995, the Guglielmi Detachable Coil (GDC) system received formal approval from the U.S. Food and Drug Administration (FDA) for treatment of surgically high-risk intracranial aneurysms. Due to advances and patent rights, not all coils used today are GDCs, however they are modeled on the same mechanism. These coils have special physical and electrolytic properties: the material is a high shape-memory alloy, allowing it to easily bend and regain its original coil shape. These platinum coils are fairly soft and adaptable to the shape ...
by TimH , Feb 13, 2013. Ruptures of cerebral aneurysms lead to subarachnoid hemorrhage (SAH) and are associated with substantial mortality and morbidity. Previous research has indicated that the rupture rates of aneurysms vary with size, location, and morphological characteristics, as well as patients personal and family medical history. "These variables have historically been used to help guide the clinical management of cerebral aneurysms," explains Robert M. Friedlander, MD. "For clinicians who treat these patients, microsurgical clipping and endovascular coiling have emerged as the two primary interventions for cerebral aneurysms that require intervention." In 2002, outcomes for patients with ruptured cerebral aneurysms were reported in the International Subarachnoid Aneurysm Trial (ISAT). The trial compared mortality and clinical outcomes of patients with aneurysmal SAH who were treated with either surgical clipping or endovascular coiling. The study found that patients who underwent ...
Although lot of studies have been conducted to examine the association of genetic polymorphism and intracranial aneurysms, the relationship between the APOE polymorphism and intracranial aneurysms has previously only been studied in Russia and Japan but not in Chinese populations [13, 14]. Evidence from a case-control study suggested that the collagen type I alpha2 gene polymorphism was associated with intracranial aneurysms in a subset of the German population [15]. Authors of a case-control study suggested that the IL-12A and IL-12B independently and jointly was involved in the susceptibility to intracranial aneurysms in a Chinese population [16]. Evidence from a meta-analysis included six case-control studies, which included 1188 intracranial aneurysms cases and 4099 controls, suggested that IL-6 promoter polymorphisms (-174G/C and -572G/C) were associated with intracranial aneurysms [17]. Authors of a case-control study in a Chinese population suggested that the miR-34b/c rs4938723CC and ...
Although a cerebral aneurysm may be present without symptoms, the most common initial symptom of a cerebral saccular aneurysm is a sudden headache from a subarachnoid hemorrhage (SAH) or bleeding in the space between the brain and the membranes that cover the brain. Minor subarachnoid hemorrhage most often happens after head injury. Major subarachnoid hemorrhage is most commonly from a ruptured cerebral saccular aneurysm. A sudden headache associated with SAH is a medical emergency. Increased risk for aneurysm rupture is associated with aneurysms that are over 10 millimeters (less than four-tenths of an inch) in diameter, in a particular location (circulation in the back portion of the brain), and/or previous rupture of another aneurysm. A significant risk of death is associated with the rupture of a cerebral aneurysm. Hemorrhagic strokes happen when a blood vessel that supplies the brain ruptures and bleeds. When an artery bleeds into the brain, brain cells and tissues do not receive oxygen and ...
Hemodynamics are considered a risk factor for the initiation, growth and rupture of intracranial aneurysms. In this thesis several aspects of the research of hemodynamics in intracranial aneurysms are discussed. First, I discuss the need to obtain aneurysm hemodynamics in a patient-specific manner, followed by possible clinical routines for obtaining such information. Second, the strengths and limitations of presented studies and the underlying technology are discussed. Third, the main outcome of the comparison study in chapter 10 is absence of additional value of aneurysm hemodynamics for characterization of ruptured versus unruptured aneurysm. This outcome raises questions whether there still is a future for hemodynamics in rupture risk prediction, and whether additional studies are still required to determine its definitive role for this purpose ...
Coiling associated with placement of self-expandable intracranial stents has amplified the treatment of intracranial wide-necked aneurysms, but the durability of this treatment and the existence of de
Objective: Endovascular coiling techniques for the treatment of intracranial aneurysms as an alternative option for surgical clipping have rapidly developed in the past few years, however their side effects and new problems also become more obvious. A distinct problem after endovascular coiling is the management of a residual aneurysm neck due to incomplete coiling, compaction of coils or regrowth of the aneurysm. Treatment options in this situation include surgical clipping, re-coiling, stent implantation or observation. We present twelve patients who underwent surgical clipping of previously coiled intracranial aneurysms and discuss the indication for surgery in this particular group of patients.. Methods: From June 2006 to May 2010, twelve patients underwent surgical clipping of residual or recurrent aneurysms after previous endovascular treatment. The mean age of the patients was 49 years (range of 27-85 years). The mean interval between coiling and clipping was 79 weeks (range of 0-288 ...
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 ...
Importance of independent evaluation of initial anatomic results after endovascular coiling for ruptured cerebral aneurysms. / Taki W, Sakai N, Suzuki H; Prospective Registry of Subarachnoid Aneurysms Treatment (PRESAT) group. Taki W, Sakai N, Hyodo A, Nemoto S, Hyogo T, Terada T, Satoh K, Kuwayama N, Miyachi S, Komiyama M, Ezura M, Murayama Y, Sakaida H, Maeda M, Nagai H, Kichikawa K, Uemura A, Numaguchi Y, Momoshima S, Kuribayashi S, Sakai C, Hyogo T, Kataoka T, Ishihara S, Koguchi Y, Kobayashi S, Enomoto Y, Yamada K, Yoshimura S, Matsumoto Y, Hirohata M, Sakai N, Adachi H, Ueno Y, Kunieda T, Sakai C, Yamagami H, Imamura H, Koyanagi M, Todo K, Yamamoto S, Kuramoto Y, Sonobe M, Kato N, Hirayama T, Kano T, Naito I, Matsubara S, Satomi J, Satoh K, Hamada H, Toma N, Asakura F, Suzuki H, Sakaida H, Matsushima S, Taki W, Terada T, Shibuya T, Oishi H, Abe H, Konishi Y, Sato E, Nakamura M, Kurata A, Houya K, Uchida T, Hyodo A, Nakahara I, Higashi T, Murai N, Iwamuro Y, Watanabe Y, Nakagaki H, Takezawa ...
Vasospasm following cerebral aneurysm rupture is one of the most devastating sequelae and the most common cause of delayed ischemic neurological deficit (DIND). Because vasospasm also is the most common cause of morbidity and mortality in patients who survive the initial bleeding episode, it is imperative not only to diagnose the condition but also to predict which patients are likely to become symptomatic. The exact pathophysiology of vasospasm is complex and incompletely elucidated. Early recognition of vasospasm is essential because the timely use of several therapeutic interventions can counteract this disease and prevent the occurrence of DIND. However, the prompt implementation of these therapies depends on the ability to predict impending vasospasm or to diagnose it at its early stages.. A number of techniques have been developed during the past several decades to evaluate cerebral perfusion, including positron emission tomography, xenon-enhanced computed tomography, single-photon ...
... ,Aneurysm occlusion is the ultimate objective of neurovascular treatment with conventional bare platinum coils. With Matrix Detachable Coils, occlusion is only the beginning... Matrix Detachable Coils are intended for embolization of those intracranial aneurysms that -- because of their mor,medicine,medical supply,medical supplies,medical product
Objective: Evaluation of the angiographic and clinical results of endovascular coil treatment of patients with acutely ruptured intracranial aneurysms and the statistical analysis of determining factors.. Methods: From November 1992 through September 2006, a total of 3038 aneurysms in 2599 patients were treated by endovascular coil occlusion. In 1363 patients (52%) treatment was performed within 30 days after aneurysm rupture. Data registration was carried out at the time of treatment.. Results: 1375 acutely ruptured aneurysms were occluded with detachable coils. The mean fundus diameter was 8 mm. 75% of the patients were in a good clinical condition (Hunt and Hess I - III). Vasospasm was noted in 34% of the patients. Using single catheter treatment in 88% of the procedures, a 90 - 100% occlusion rate of the aneurysm was achieved in 91% of the patients. The rate of a periprocedural aneurysm rupture and thromboembolic events was 5.2% and 6.6% respectively. Significant morbidity and mortality was ...
Hemorrhage due to Empty-Heat No breast milk, Breastfeeding no milk, , Dryness of the eyes, Eye dryness, Dry eye syndrome, Calf muscle cramps, Calf crams, , Hand cramping, , hemorrhage due to empty-heat
David Amarasinge and Steve Hendrickson Cerebral aneurysms are the leading cause of hemorrhagic strokes. In unruptured aneurysms, current treatment risks can exceed the risk of natural rupture. A better understanding of the processes leading to rupture is needed to better select only those aneurysms which place themselves in a high-risk category. Recently, several studies have used image-based computational fluid dynamics to analyze the hemodynamic behavior in cerebral aneurysms. These studies suggest that complex/unstable flow patterns, with concentrated inflow jets impacting on a small region of the aneurysm, have a higher rupture risk. However, one of the limitations of these studies is that they assumed that the shape, and thus the hemodynamic profile, is not dramatically changed by the aneurysm rupture. This case presents a computational analysis of a fatal aneurysm of the basilar artery that was imaged with 3D rotational angiography hours before its rupture, and before the patient could be ...
A splenic artery aneurysm is a situation in which a blood vessel connected to the spleen becomes swollen. Its extremely dangerous...
Another name for Brain Aneurysm Rupture is Subarachnoid Hemorrhage. Surgery may be required if the subarachnoid hemorrhage is due to a ruptured aneurysm ...
Treatment of brain aneurysm by surgical clipping (costs for program #249305) ✔ University Hospital Halle (Saale) ✔ Department of Neurosurgery ✔ BookingHealth.com
Treatment of brain aneurysm by surgical clipping (costs for program #39619) ✔ University Hospital Marburg UKGM ✔ Department of Neurosurgery ✔ BookingHealth.com
Objective: The aim of the study was to assess the risk of de novo aneurysm (dnA) formation in patients after aneurysmal subarachnoid hemorrhage (SAH). Methods: Computed tomography angiography (CTA) was performed in 119 patients 3 to 11 years (mean 6) after clipping of a ruptured aneurysm. In the [for full text, please go to the a.m. URL ...
Bøthun, Marianne Lundervik; Haaland, Øystein Ariansen; Logallo, Nicola; Svendsen, Frode; Thomassen, Lars; Helland, Christian Andre. 2018. Time course of cerebrovascular reactivity in patients treated for unruptured intracranial aneurysms: A one-year transcranial Doppler and acetazolamide follow-up study. BioMed Research International. 2018:6489276: 1-9. doi: 10.1155/2018/6489276 ...
Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology. (RAD) ...
A new study reveals that the risk of aneurysm ruptures in women, who have aneurysms involving the brain blood vessels, does not increase with pregnancy and delivery.
Another name for Ruptured Cerebral Aneurysm is Subarachnoid Hemorrhage. Facts about a subarachnoid hemorrhage: * About 1 out of 10,000 people develop ...
Saccular intracranial aneurysms (IAs) are balloon-like dilations of the arterial wall with a risk of hemorrhage that can result in severe neurologic impairment...
A very worthwhile and insightful overview of SAH management in the acute phase. Courtesy of Continuing Education in Anaesthesia, Critical Care & Pain. Read it here.
Surgical treatment of space occupying edema and hemorrhage due to cerebral venous thrombosis during pregnancy.: While previous reports have demonstrated the fea
A subarachnoid haemorrhage is most often caused by a brain aneurysm.. A brain aneurysm is a bulge in a blood vessel, caused by a weakness in the blood vessel wall, usually at a point where the vessel branches off. As blood passes through the weakened vessel, the pressure causes a small area to bulge outwards like a balloon.. Occasionally, this bulge can burst (rupture), causing bleeding around the brain. Around eight out of every 10 subarachnoid haemorrhages happen in this way.. A brain aneurysm doesnt usually cause any symptoms unless it ruptures. However, some people with unruptured aneurysms experience symptoms such as:. ...
Cerebral aneurysms are dangerous, which is why the neurosurgery team at Washington Township Medical Foundation provides effective treatment options. Call now!
I. Cerebral aneurysm is defined as a cerebrovascular disorder causes of the blood vessel to bulge or balloon out of the wall of a blood vessel as a result of the weaken of blood vessels and veins and occurred mostly at the bifurcations and branches of the large arteries located at the Circle of Willis. …. ...
September 21, 2017-Medtronic announced the launch of its Concerto three-dimensional (3D) detachable coil system at CIRSE 2017, the annual congress of the Cardiovascular and Interventional Radiological Society of Europe held September 16-20 in Copenhagen, Denmark. The product is now available in both the United States and Europe.. According to the company, the 3D coil is an adjunctive product to the existing Concerto Helix line and is indicated for arterial and venous embolization in the peripheral vasculature.. The devices complex shape allows physicians to frame the treatment area by creating a scaffold. In addition, the coil also contains fibers that increase thrombogenicity, stated Medtronic.. ...
If an aneurysm needs treatment, options include clipping, endovascular coiling or embolization, or a combination of surgery with clipping or embolization.
This weeks case marks a return to planning of anaesthesia. No single tweet will raise all the relevant points so we would like as many as possible to join in. A 66 year old woman is listed for semi-urgent craniotomy and clipping of right MCA aneurysm. She had a subarachnoid haemorrhage 10 days ago, resulting…
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It is every mothers nightmare -- your kid is perfectly healthy one minute, and the next, hes in the hospital, diagnosed with a condition you never knew about.
It is every mothers nightmare -- your kid is perfectly healthy one minute, and the next, hes in the hospital, diagnosed with a condition you never knew about.
Andover is usually our choice variety of parsnip, largely because organic seed is (sometimes) available for this variety. (Sourcing organic parsnip seed can be challenging.) We havent noticed major quality or yield differences between this variety and a couple others weve tried, though we havent done side-by-side trials. Perfect parsnips are usually accompanied by a high percentage of small/split/oddly shaped ones, but that just seems to be the reality of growing parsnips in our soil. We think they are delicious enough to be worth the hassle.. Weve learned the hard way to avoid weeding parsnips in the morning, especially on sunny days. Contact with the leaves, seemingly in conjunction with sun exposure, can cause a skin reaction in the form of blister-like bumps. Based on a small sample size, weve concluded that a high percentage of people exposed to parsnip leaves and sun will develop this rash. However, we wonder if the growing conditions matter; weve been growing parsnips for years, but ...
Advances in Clip Techniques: Indication for Clipping Complication management with clips, Managing patients on anti-clotting agents, Prophylactic clipping with Dr. Pauli.
Following a subarachnoid haemorrhage you may experience one or more of the following symptoms Return to top of page Headaches. Die Blutung entsteht in einem Raum zwischen zwei Gewebeschichten, die das Gehirn bedecken. Bleeding into the intracranial or spinal subarachnoid space, most resulting from intracranial aneurysm rupture. Subarachnoid hemorrhage from ruptured brain aneurysm Overview Mayo Clinic neurosurgeon Giuseppe Lanzino, M. Half of the hemorrhagic strokes are subarachnoid hemorrhages, and its overall incidence is around 9/100. If CT is negative LP is indicated. Subarachnoid hemorrhage, bleeding into the space between the two innermost protective coverings surrounding the brain, the pia mater and the arachnoid mater. The ruptured vessel bleeds into the space between the pia and arachnoid matter. 000 person-years. The subarachnoid space is the space where the cerebrospinal fluid circulates, and its responsible for protecting your brain from injury by serving as a cushion. Subarachnoid ...
Neurosurgery 73:1026-1033, 2013. Blister aneurysms of the internal carotid artery (ICA) are uncommon. There is a paucity of data on the long-term outcomes of patients.. OBJECTIVE: To review our experience with the treatment of these lesions.. METHODS: We retrospectively reviewed all aneurysms treated at our institution between 1994 and 2005. Relevant operative notes, radiology reports, and inpatient/ outpatient records were reviewed.. RESULTS: Seventeen patients (3 male, 14 female) with 18 blister aneurysms of the ICA were identified. The mean age was 44.6 years (range, 17-72; median, 42 years). Twelve patients (70.6%) presented with aneurysmal subarachnoid hemorrhage. The mean admission Glasgow Outcome Scale score was 4.3 (range, 2-5; median, 5). All patients were initially treated using microsurgical technique with direct clipping (n = 15; 83.3%) or clip-wrapping with Gore-Tex (n = 3, 16.7%). There were 4 cases of intraoperative rupture, all associated with attempted direct clipping; all 4 ...
Dissecting posterior inferior cerebellar artery (PICA) aneurysms typically have nonsaccular morphology, involve an entire segment of artery, and are unclippable. Exclusion of these ruptured aneurysms can be accomplished endovascularly or microsurgically by sacrificing the parent artery, but revascularization of the PICA territory can only be accomplished microsurgically. In situ bypass with a side-to-side anastomosis between…
Looking for online definition of posterior inferior cerebellar artery syndrome in the Medical Dictionary? posterior inferior cerebellar artery syndrome explanation free. What is posterior inferior cerebellar artery syndrome? Meaning of posterior inferior cerebellar artery syndrome medical term. What does posterior inferior cerebellar artery syndrome mean?
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 ...
Aneurysms that involve the internal carotid artery and posterior communicating artery junction and incorporate a fetal posterior cerebral artery are known as fetal posterior communicating artery aneurysms. We report the outcomes of four patients with fetal posterior communicating artery aneurysms who underwent treatment with the pipeline embolization device with or without adjunctive coil embolization. In our study, all four patients failed to achieve aneurysm occlusion at the last follow-up evaluation. Based on our results, we currently do not recommend the use of the flow diverter for the treatment of fetal posterior communicating artery aneurysms.

Fibromuscular Dysplasia: Understanding Fibromuscular DysplasiaFibromuscular Dysplasia: Understanding Fibromuscular Dysplasia

... may occur if an aneurysm ruptures. FMD involving the mesenteric arteries (arteries that supply the intestines, liver and spleen ... and may be associated with later aneurysm formation. The most common location for a true left ventricular aneurysm involves the ... A pseudoaneurysm, also known as a false aneurysm, is a hematoma (localized swelling filled with blood) that forms as the result ... This must be distinguished from a true aneurysm, which is a localized dilatation of an artery including all the layers of the ...
more infohttp://fibromusculardysplasia.blogspot.com/2010/11/understanding-fibromuscular-dysplasia.html

Predictors and outcomes of shunt-dependent hydrocephalus in patients with aneurysmal sub-arachnoid hemorrhage | BMC Surgery |...Predictors and outcomes of shunt-dependent hydrocephalus in patients with aneurysmal sub-arachnoid hemorrhage | BMC Surgery |...

A ruptured, angiographically verified aneurysm was the cause of the SAH in all patients. Patients initially treated in other ... anterior cerebral artery aneurysm in four, pericallosal artery aneurysm in three, posterior cerebral artery aneurysm in four, ... Fisher CM, Roberson GH, Ojemann RG: Cerebral vasospasm with ruptured saccular aneurysm - the clinical manifestations. ... η = The other locations of aneurysms included the superior cerebellar artery aneurysm in four,, posterior inferior cerebellar ...
more infohttps://bmcsurg.biomedcentral.com/articles/10.1186/1471-2482-12-12

Sex risks brain aneurysm rupture | Health24Sex risks brain aneurysm rupture | Health24

... having sex or even getting angry may boost the risk of it rupturing, a new study suggests. ... If you have a brain aneurysm, drinking coffee, ... Sex risks brain aneurysm rupture. If you have a brain aneurysm ... Even if you do have an aneurysm, its unlikely to bother you. We think most aneurysms never rupture, said Vlak, a neurologist ... If you have a brain aneurysm, drinking coffee, having sex or even getting angry may boost the risk of it rupturing, a new study ...
more infohttp://www.health24.com/Mental-Health/Brain/News/Sex-risks-brain-aneurysm-rupture-20120721

Search Results for cerebral aneurysm rupture | jnsSearch Results for "cerebral aneurysm rupture" | jns

Vasospasm following cerebral aneurysm rupture is one of the most devastating sequelae and the most common cause of delayed ... aneurysm rupture can be devastating, with 30%-50% mortality and 50% significant morbidity. 20 , 29 , 36 , 49 Only a small ... Therefore, prior to aneurysm rupture, a large number of diagnosed patients are treated either microsurgically via clipping or ... However, anecdotal evidence suggests that the risk of sexually related cerebral aneurysm rupture is greater in men than women. ...
more infohttps://thejns.org/search?q=%22cerebral%20aneurysm%20rupture%22

One-third Of All Brain Aneurysms Rupture Regardless Of Size - RedorbitOne-third Of All Brain Aneurysms Rupture Regardless Of Size - Redorbit

Consequently, small (,7mm) aneurysms have often been left untreated, even though such aneurysms have also been known to rupture ... The new study established that approximately one third of all aneurysms and up to one fourth of small aneurysms will rupture ... The risk of rupture is particularly high for female smokers with brain aneurysms of seven millimeters or more in diameter. What ... "This is not to say that aneurysms in non-smoking men never rupture, but that the risk is much lower than we previously thought ...
more infohttps://www.redorbit.com/news/health/1113153801/one-third-of-brain-aneurysms-rupture-regardless-of-size-052314/

Prehemorrhage Risk Factors for Fatal Intracranial Aneurysm Rupture | StrokePrehemorrhage Risk Factors for Fatal Intracranial Aneurysm Rupture | Stroke

... aneurysm rupture seem to predict fatal SAH independently of aneurysm size or patient age or sex at the time of aneurysm rupture ... diameter of ruptured aneurysm in cases with prior SAH; presence of multiple unruptured aneurysms; aneurysm group (symptomatic ... were cases with unruptured aneurysms and SAH with only the ruptured aneurysm clipped and occlusion of the aneurysm confirmed by ... These patients may have an increased risk for aneurysm formation and possibly for rupture of an unruptured aneurysm. They also ...
more infohttp://stroke.ahajournals.org/content/34/8/1852

The Radiology Assistant : Aorta - Aneurysm ruptureThe Radiology Assistant : Aorta - Aneurysm rupture

Aorta - Aneurysm rupture. CT signs of pending Aortic aneurysm rupture. Jay P. Heiken, M.D. Mallinckrodt Institute of Radiology ... Abdominal aortic aneurysm morphology: CT features in patients with ruptured and nonruptured aneurysms CL Siegel, RH Cohan, M ... Aortic aneurysm rupture is the most important diagnosis you want to be able to exclude in patients with acute abdominal pain ... On the left we see three patients with aortic aneurysm rupture.. In the image on the far left we only see a little bit of ...
more infohttp://radiologyassistant.nl/en/p452fe3aa7ef9c/aorta-aneurysm-rupture.html

Risk of Brain Aneurysm Rupture Does Not Increase With Pregnancy and DeliveryRisk of Brain Aneurysm Rupture Does Not Increase With Pregnancy and Delivery

... who have aneurysms involving the brain blood vessels, does not increase with pregnancy and delivery. ... A new study reveals that the risk of aneurysm ruptures in women, ... If the aneurysm enlarges or ruptures (breaks), it can cause ... Aneurysms of the brain blood vessels are rarely detected in pregnant women. However, ruptured aneurysm during pregnancy and ... A new study published in the journal Neurosurgery reveals that the risk of aneurysm ruptures in women, who have aneurysms ...
more infohttp://www.medindia.net/news/risk-of-brain-aneurysm-rupture-does-not-increase-with-pregnancy-and-delivery-114167-1.htm

Experimental drug reduces second stroke after aneurysm rupture - Healthcanal.com : Healthcanal.comExperimental drug reduces "second stroke" after aneurysm rupture - Healthcanal.com : Healthcanal.com

Study included 571 patients with a ruptured aneurysm treated with an endovascular coil, a device used to repair the ruptured ... They halted CONSCIOUS-3 prematurely after patients in CONSCIOUS-2 (a trial of patients whose ruptured aneurysm was secured by ... which can occur about three to 14 days after aneurysm rupture. ... risk of blood vessel spasm in patients with a brain aneurysm, ...
more infohttps://www.healthcanal.com/blood-heart-circulation/26077-experimental-drug-reduces-second-stroke-after-aneurysm-rupture.html

Brain Aneurysm Rupture Risk Tied to Locat... ( Those greater than 13 millimeters in ...)Brain Aneurysm Rupture Risk Tied to Locat... ( Those greater than 13 millimeters in ...)

25 at the World Stroke Congress me...,,Brain,Aneurysm,Rupture,Risk,Tied,to,Location,,,Size,medicine,medical news today,latest ... 25 (HealthDay News) -- The risk of a brain aneurysm ru...The international study found that people with aneurysms in the back o ... 25 (HealthDay News) -- The risk of a brain aneurysm rupturing over time depends on the location and size of the aneurysm, ... Brain Aneurysm Rupture Risk Tied to Location, Size. ...Those greater than 13 millimeters in width twice as likely to burst s... ...
more infohttp://www.bio-medicine.org/medicine-news-1/-Brain-Aneurysm-Rupture-Risk-Tied-to-Location---Size-26800-1/

Abdominal aortic aneurysm rupture | Radiology Case | Radiopaedia.orgAbdominal aortic aneurysm rupture | Radiology Case | Radiopaedia.org

The diagnostic suggestion is based on retroperitoneal hemorrhage adjacent to the aneurysm extending to perirenal, pararenal ... Abdominal aortic aneurysm rupture is a complication of abdominal aortic aneurysm and is a surgical emergency. ... Aneurysm larger than 7 cm is at high risk of rupture, in this case it measured 10 x 11 cm. Treatment of an acute rupture should ... Abdominal aortic aneurysm rupture is a complication of abdominal aortic aneurysm and is a surgical emergency. The diagnostic ...
more infohttps://radiopaedia.org/cases/abdominal-aortic-aneurysm-rupture-1?lang=us

Barrow Ruptured Aneurysm Trial - Full Text View - ClinicalTrials.govBarrow Ruptured Aneurysm Trial - Full Text View - ClinicalTrials.gov

Aneurysm. Intracranial Aneurysm. Aneurysm, Ruptured. Brain Diseases. Hemorrhage. Subarachnoid Hemorrhage. Rupture. Pathologic ... Barrow Ruptured Aneurysm Trial (BRAT). The safety and scientific validity of this study is the responsibility of the study ... Analysis of saccular aneurysms in the Barrow Ruptured Aneurysm Trial. J Neurosurg. 2018 Jan;128(1):120-125. doi: 10.3171/2016.9 ... Ruptured Cerebral Aneurysm Subarachnoid Hemorrhage (SAH) Procedure: coil embolization Procedure: clip occlusion ...
more infohttps://clinicaltrials.gov/ct2/show/NCT01593267?term=Cerebral+Aneurysms&rank=7

Recent asthma may be linked with abdominal aneurysm rupture | American Heart AssociationRecent asthma may be linked with abdominal aneurysm rupture | American Heart Association

Abdominal aortic aneurysm is a dangerous weakening of the main blood vessel in the body and may lead to rupture and sudden ... Asthmatic adults were significantly more likely than non-asthmatics to develop abdominal aortic aneurysm. ... Recent active asthma may increase the risk of abdominal aortic aneurysm and rupture in adult patients. ... Fragment of ruptured human abdominal aortic aneurysm. Fragment of ruptured human abdominal aortic aneurysm ...
more infohttps://newsroom.heart.org/news/recent-asthma-may-be-linked-with-abdominal-aneurysm-rupture

Coronary Arteriovenous Fistula and Aortic Sinus Aneurysm Rupture. | Annals of Internal Medicine | American College of PhysiciansCoronary Arteriovenous Fistula and Aortic Sinus Aneurysm Rupture. | Annals of Internal Medicine | American College of Physicians

RUPTURE OF AN ANEURYSM OF A SINUS OF VALSALVA INTO THE RIGHT AURICLE(RUPTURE OF AN ANEURYSM OF A SINUS OF VALSALVA INTO THE ... Growth and Rupture Risk of Small Unruptured Intracranial Aneurysms: A Systematic Review Annals of Internal Medicine; 167 (1): ... Coronary Arteriovenous Fistula and Aortic Sinus Aneurysm Rupture. John C. Holmes, M.D. (Associate); Noble Fowler, M.D., F.A.C.P ... In local experience coronary arteriovenous fistula or aortic sinus of Valsalva aneurysm rupture into the right heart are the ...
more infohttp://annals.org/aim/article-abstract/680691/coronary-arteriovenous-fistula-aortic-sinus-aneurysm-rupture

dreddyclinic.com - Abdominal Aortic Aneurysm, Rupturedreddyclinic.com - Abdominal Aortic Aneurysm, Rupture

These can continue to expand and rupture spontaneously, exsanguinate, and cause death.AAA rupture is an important cause of ... Rupture - Abdominal aortic aneurysms (AAAs) are segmental dilatations of the aortic wall that cause the vessel to be larger ... Fortunately, not all aortic aneurysms reach the point of rupture. Many start small and stay small. Others slowly expand over ... Aortic aneurysms can house small blood clots. If a blood clot breaks loose from the inside wall of an aneurysm and travels into ...
more infohttp://www.dreddyclinic.com/findinformation/aa/aorticaneurysm.php

Abdominal aortic aneurysm rupture with aortocaval fistula | Radiology Case | Radiopaedia.orgAbdominal aortic aneurysm rupture with aortocaval fistula | Radiology Case | Radiopaedia.org

... of all aneurysms and in ~ 3% of ruptured aortic aneurysms. ... Spontaneous rupture of an AAA into the adjacent vena cava ... Spontaneous rupture of an AAA into the adjacent vena cava occurs in , 1% of all aneurysms and in ~ 3% of ruptured aortic ... Abdominal aortic aneurysm rupture with aortocaval fistula. Case contributed by Dr Sajoscha Sorrentino ... Aortocaval fistula associated with ruptured abdominal aortic aneurysm. Ann Vasc Surg. 2014;28 (7): 1793.e5-9. doi:10.1016/j. ...
more infohttps://radiopaedia.org/cases/abdominal-aortic-aneurysm-rupture-with-aortocaval-fistula

Ruptured Aneurysm - Stock Image - M136/0324 - Science Photo LibraryRuptured Aneurysm - Stock Image - M136/0324 - Science Photo Library

CT image of the head in a person with a ruptured aneurysm shows a massive subarachnoid and intraventricular hemorrhage. A ... This axial (cross sectional) CT image of the head in a person with a ruptured aneurysm shows a massive subarachnoid and ...
more infohttps://www.sciencephoto.com/media/255771/view/ruptured-aneurysm

Aortic Aneurysm Rupture Stock Image Search ResultsAortic Aneurysm Rupture Stock Image Search Results

Aortic Aneurysm Rupture,Medical Illustration database of the best portfolios and stock images now features General and ... Accurately shows middle-aged man with aortic aneurysm in two common sites. Inset shows two types of rupture of aneurysm.. ... Accurately depicts the progression of a middle cerebral artery (MCA) aneurysm rupture in the brain. Arteries labeled: common ... Abdominal Aortic Aneurysm May be customized by editing labels, or by combining artwork with graphics from our 15,000 image li ...
more infohttp://www.indexedvisuals.com/scripts/ivstock/search.asp?q=Aortic+Aneurysm+Rupture&terms=alphalist%3An

Letter: Ruptured aneurysm of splenic artery in pregnancyLetter: Ruptured aneurysm of splenic artery in pregnancy

Ruptured rudimentary horn pregnancy misdiagnosed as ruptured pseudo aneurysm internal iliac artery. Indu, Lata; Deepa, Kapoor; ... Dimensions of the splenic artery aneurysm; Factors contributing towards formation of splenic artery aneurysm; Risk of rupture ... of all visceral aneurysms. Pregnancy is a risk factor for splenic artery aneurysms rupture with high maternal mortality and ... Splenic artery aneurysm rupture is a rare but a serious complication especially when it occurs in pregnancy. Following is a ...
more infohttp://connection.ebscohost.com/c/articles/64322173/letter-ruptured-aneurysm-splenic-artery-pregnancy

Treatment selection for ruptured aneurysm and outcomes: clipping or coil embolization.  - PubMed - NCBITreatment selection for ruptured aneurysm and outcomes: clipping or coil embolization. - PubMed - NCBI

Other aneurysms were principally treated by clipping. Aneurysms with a dome/neck ratio of less than 1.5, distorted aneurysms, ... Treatment selection for ruptured aneurysm and outcomes: clipping or coil embolization.. Tenjin H1, Takadou M, Ogawa T, Mandai A ... However, many ruptured aneurysms are hardly treatable by either clipping or coil embolization. Selection of either clipping or ... This study included 113 patients with ruptured intracranial saccular aneurysms measuring less than 10 mm. Selection criteria ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed/21273740?dopt=Abstract

HON - News : AHA News: Emphysema May Raise Risk of Ruptured AneurysmsHON - News : AHA News: Emphysema May Raise Risk of Ruptured Aneurysms

Generally, aneurysms develop slowly and dont cause symptoms. When an aneurysm in the brain ruptures or leaks, it can cause a ... its called an aneurysm. For people with emphysema, the risk of that aneurysm rupturing is much higher than for those without ... AHA News: Emphysema May Raise Risk of Ruptured Aneurysms TUESDAY, March 19, 2019 (American Heart Association News) -- When a ... Of the more than 4,800 patients diagnosed with an aneurysm rupture, 433 cases occurred in those with emphysema. ...
more infohttps://www.hon.ch/News/HSN/743986.html

Extending statistical learning for aneurysm rupture assessment to Finnish and Japanese populations using morphology,...Extending statistical learning for aneurysm rupture assessment to Finnish and Japanese populations using morphology,...

Developing an aneurysm rupture prediction model that applies to Japanese and Finnish aneurysms requires including data from ... A recently developed aneurysm rupture probability model performed well in the US data used for model training and in data from ... Incidental aneurysms pose a challenge for physicians, who need to weigh the rupture risk against the risks associated with ... Because Japanese and Finnish patients are known to have a higher aneurysm rupture risk, the authors goals in the present study ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed/31261120

What does it mean to have a popliteal aneurysm rupture - Answers on HealthTapWhat does it mean to have a popliteal aneurysm rupture - Answers on HealthTap

In all, very bad, and one of the reasons to fix aneurysms electively. for topic: What Does It Mean To Have A Popliteal Aneurysm ... The weakened wall can rupture, and bleeding into the tissues around the knee occurs, causing tremendous pain and swelling. The ... An aneurysm is an dilitation of a blood vessel. This is the result of weakening in the wall of the artery. ... Colantino on what does it mean to have a popliteal aneurysm rupture: ...
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Elevated International Normalized Ratio Is Associated With Ruptured AneurysmsElevated International Normalized Ratio Is Associated With Ruptured Aneurysms

INR elevation is associated with intracranial aneurysm rupture, but the effects may be moderated by warfarin. INR values should ... and presentation with a ruptured intracranial aneurysm, taking into account the interaction between anticoagulant use and INR. ... We aimed to investigate the association between anticoagulation therapy, elevated INR values, and rupture of intracranial ... aneurysms.. Methods-. We conducted a case-control study of 4696 patients with 6403 intracranial aneurysms, including 1198 ...
more infohttps://insights.ovid.com/stro/201809000/00007670-201809000-00007

Perioperative Use of Recombinant Factor VII to Prevent Intraoperative Aneurysm Rupture in High Risk Patients: A Preliminary...Perioperative Use of Recombinant Factor VII to Prevent Intraoperative Aneurysm Rupture in High Risk Patients: A Preliminary...

... in a series of subarachnoid hemorrhage patients undergoing microsurgical aneurysm clipping ... Predictors and outcomes of intraprocedural rupture in patients treated for ruptured intracranial aneurysms. The CARAT study. ... In each case, the aneurysm was felt to be a "high risk" lesion for intraoperative rupture either because it had bled multiple ... Analysis of intraoperative rupture in the surgical treatment of 1694 saccular aneurysms. Neurosurgery. 2005;56:455-68. doi: ...
more infohttps://link.springer.com/article/10.1007/s12028-008-9149-9
  • Results- During follow-up, 34 first episodes of hemorrhage from a previously verified unruptured aneurysm occurred. (ahajournals.org)
  • We describe our experience with the use of a single dose of rFVIIa administered perioperatively in an attempt to decrease the rate of intraoperative aneurysm rupture in patients undergoing microsurgical aneurysm clipping. (springer.com)
  • However, a recent study by researchers from the University of Helsinki and Helsinki University Central Hospital demonstrated that the size of an aneurysm has no great significance on the risk of rupture. (redorbit.com)
  • What surprised the researchers most was that the size of an aneurysm had little impact on its risk for rupture, particularly for men, despite a previously presumed correlation. (redorbit.com)
  • Using these figures, the researchers estimated a 1.4 percent risk of aneurysm rupture during pregnancy and 0.05 percent during delivery. (medindia.net)
  • High Rate of Cesarean Section May Be Unnecessary The researchers also identified 218 deliveries in women with known unruptured aneurysms. (medindia.net)
  • Although surgical repair of aortic aneurysms can help prevent rupture and reduce death, researchers say it is important to find signs of increased risk, before this medical emergency occurs. (heart.org)
  • Current computational fluid dynamics findings correlating both high and low wall shear stress with intracranial aneurysm growth and rupture puzzle researchers and clinicians alike. (ajnr.org)
  • Researchers hope to add a third alternative -- drugs to lower the odds of the aneurysm rupturing. (hon.ch)
  • When this vessel becomes weakened it can form a balloon-like bulge that may rupture and if left untreated can cause sudden death. (heart.org)
  • Up to 50% of individuals do not survive aneurysm rupture, with the majority of survivors suffering some degree of neurological deficit. (thejns.org)
  • While using administrative data allows investigators to study a large group of people, these records don't capture clinical variables, such as the severity, treatment or duration of a patient's emphysema or aneurysm, or the context in which the diagnosis was made. (hon.ch)
  • Models with and without interaction terms between patient population and aneurysm characteristics were trained and evaluated including data from all four cohorts obtained by repeatedly randomly splitting the data into training and test data. (nih.gov)
  • Intracranial aneurysm rupture is closely related to clinical characteristics, aneurysm morphology and location. (alliedacademies.org)
  • In the future, we expect that larger datasets, better analyses, and increased understanding of hemodynamic-biologic mechanisms will lead to more accurate predictive models for intracranial aneurysm risk assessment from computational fluid dynamics. (ajnr.org)
  • Hemodynamic parameters, particularly those related to aneurysmal wall shear stress (WSS), the frictional force of flowing blood on the vessel lumen, have been shown to correlate with IA growth 1 ⇓ - 3 and rupture. (ajnr.org)
  • 4 , 5 Consequently, the clinical community has taken an interest in not only the intuitive and esthetic aspects of CFD simulations (dubbed "color for doctors") 6 but also the enormous potential of CFD to provide objective, quantitative, and mechanism-based markers of aneurysm rupture risk. (ajnr.org)
  • In a recent American Journal of Neuroradiology editorial, Kallmes 7 raised concerns regarding the current status of CFD studies and their clinical utility in IA rupture risk assessments, asking if CFD should alternatively be interpreted as "confounding factor dissemination. (ajnr.org)
  • The study also finds that women with known, unruptured aneurysms have a very high rate of cesarean delivery which isn't supported by evidence and "may not be necessary," according to Dr. Brian L. Hoh of University of Florida, Gainesville, and colleagues. (medindia.net)
  • In an earlier laboratory study done in mice, Shi's team found a link between asthma and aneurysm. (heart.org)
  • Emphysema and aneurysms is a very common association that we as surgeons have noted for years," said Dr. Irving Kron, a cardiothoracic surgeon and interim dean of the University of Arizona's College of Medicine-Tucson, who was not involved in the study. (hon.ch)
  • A report of the Cooperative Aneurysm Study. (springer.com)
  • Du emphasized, however, that her study doesn't support statin use to prevent a rupture. (hon.ch)
  • Incidental aneurysms pose a challenge for physicians, who need to weigh the rupture risk against the risks associated with treatment and its complications. (nih.gov)
  • A 70-year-old asymptomatic man presented with moyamoya disease (MMD)-associated basilar tip aneurysm (BTA) noted on digital subtraction angiography ( figure 1, A-D ). 4D-flow MRI revealed a concentrated inflow jet with high velocity compared with previous studies 1 ( video 1 and figure 2, A-F ). Considering the high risk of endovascular treatment, the patient chose conservative treatment. (neurology.org)