Arachnoid: A delicate membrane enveloping the brain and spinal cord. It lies between the PIA MATER and the DURA MATER. It is separated from the pia mater by the subarachnoid cavity which is filled with CEREBROSPINAL FLUID.Hydrocephalus: Excessive accumulation of cerebrospinal fluid within the cranium which may be associated with dilation of cerebral ventricles, INTRACRANIAL HYPERTENSION; HEADACHE; lethargy; URINARY INCONTINENCE; and ATAXIA.Subarachnoid Space: The space between the arachnoid membrane and PIA MATER, filled with CEREBROSPINAL FLUID. It contains large blood vessels that supply the BRAIN and SPINAL CORD.Cerebral Ventricle Neoplasms: Neoplasms located in the brain ventricles, including the two lateral, the third, and the fourth ventricle. Ventricular tumors may be primary (e.g., CHOROID PLEXUS NEOPLASMS and GLIOMA, SUBEPENDYMAL), metastasize from distant organs, or occur as extensions of locally invasive tumors from adjacent brain structures.Hydrocephalus, Normal Pressure: A form of compensated hydrocephalus characterized clinically by a slowly progressive gait disorder (see GAIT DISORDERS, NEUROLOGIC), progressive intellectual decline, and URINARY INCONTINENCE. Spinal fluid pressure tends to be in the high normal range. This condition may result from processes which interfere with the absorption of CSF including SUBARACHNOID HEMORRHAGE, chronic MENINGITIS, and other conditions. (From Adams et al., Principles of Neurology, 6th ed, pp631-3)Cerebrospinal Fluid Shunts: Tubes inserted to create communication between a cerebral ventricle and the internal jugular vein. Their emplacement permits draining of cerebrospinal fluid for relief of hydrocephalus or other condition leading to fluid accumulation in the ventricles.Cerebral Ventriculography: Radiography of the ventricular system of the brain after injection of air or other contrast medium directly into the cerebral ventricles. It is used also for x-ray computed tomography of the cerebral ventricles.Arachnoid Cysts: Intracranial or spinal cavities containing a cerebrospinal-like fluid, the wall of which is composed of arachnoidal cells. They are most often developmental or related to trauma. Intracranial arachnoid cysts usually occur adjacent to arachnoidal cistern and may present with HYDROCEPHALUS; HEADACHE; SEIZURES; and focal neurologic signs. (From Joynt, Clinical Neurology, 1994, Ch44, pp105-115)Ventriculostomy: Surgical creation of an opening in a cerebral ventricle.Cerebral Ventricles: Four CSF-filled (see CEREBROSPINAL FLUID) cavities within the cerebral hemispheres (LATERAL VENTRICLES), in the midline (THIRD VENTRICLE) and within the PONS and MEDULLA OBLONGATA (FOURTH VENTRICLE).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.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)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.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.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.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.Cerebral Angiography: Radiography of the vascular system of the brain after injection of a contrast medium.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, Abdominal: An abnormal balloon- or sac-like dilatation in the wall of the ABDOMINAL AORTA which gives rise to the visceral, the parietal, and the terminal (iliac) branches below the aortic hiatus at the diaphragm.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.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.Aorta, Abdominal: The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries.Blood Vessel Prosthesis Implantation: Surgical insertion of BLOOD VESSEL PROSTHESES to repair injured or diseased blood vessels.Blood Vessel Prosthesis: Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels.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.Aortography: Radiographic visualization of the aorta and its branches by injection of contrast media, using percutaneous puncture or catheterization procedures.International Cooperation: The interaction of persons or groups of persons representing various nations in the pursuit of a common goal or interest.Registries: The systems and processes involved in the establishment, support, management, and operation of registers, e.g., disease registers.Hypermedia: Computerized compilations of information units (text, sound, graphics, and/or video) interconnected by logical nonlinear linkages that enable users to follow optimal paths through the material and also the systems used to create and display this information. (From Thesaurus of ERIC Descriptors, 1994)Genetic Linkage: The co-inheritance of two or more non-allelic GENES due to their being located more or less closely on the same CHROMOSOME.Genetic Markers: A phenotypically recognizable genetic trait which can be used to identify a genetic locus, a linkage group, or a recombination event.ADAM Proteins: A family of membrane-anchored glycoproteins that contain a disintegrin and metalloprotease domain. They are responsible for the proteolytic cleavage of many transmembrane proteins and the release of their extracellular domain.Leukocyte Disorders: Disordered formation of various types of leukocytes or an abnormal accumulation or deficiency of these cells.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.Cell Wall: The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents.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.Arteries: The vessels carrying blood away from the heart.Neurology: A medical specialty concerned with the study of the structures, functions, and diseases of the nervous system.Tomography, X-Ray Computed: Tomography using x-ray transmission and a computer algorithm to reconstruct the image.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.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.Cranial Nerve Injuries: Dysfunction of one or more cranial nerves causally related to a traumatic injury. Penetrating and nonpenetrating CRANIOCEREBRAL TRAUMA; NECK INJURIES; and trauma to the facial region are conditions associated with cranial nerve injuries.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.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.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.Carotid Artery, External: Branch of the common carotid artery which supplies the exterior of the head, the face, and the greater part of the neck.Carotid Stenosis: Narrowing or stricture of any part of the CAROTID ARTERIES, most often due to atherosclerotic plaque formation. Ulcerations may form in atherosclerotic plaques and induce THROMBUS formation. Platelet or cholesterol emboli may arise from stenotic carotid lesions and induce a TRANSIENT ISCHEMIC ATTACK; CEREBROVASCULAR ACCIDENT; or temporary blindness (AMAUROSIS FUGAX). (From Adams et al., Principles of Neurology, 6th ed, pp 822-3)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.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.Heart Rupture, Post-Infarction: Laceration or tearing of cardiac tissues appearing after MYOCARDIAL INFARCTION.Heart Rupture: Disease-related laceration or tearing of tissues of the heart, including the free-wall MYOCARDIUM; HEART SEPTUM; PAPILLARY MUSCLES; CHORDAE TENDINEAE; and any of the HEART VALVES. Pathological rupture usually results from myocardial infarction (HEART RUPTURE, POST-INFARCTION).Ventricular Septal Rupture: Laceration or tearing of the VENTRICULAR SEPTUM, usually caused by MYOCARDIAL INFARCTION.Cardiac Tamponade: Compression of the heart by accumulated fluid (PERICARDIAL EFFUSION) or blood (HEMOPERICARDIUM) in the PERICARDIUM surrounding the heart. The affected cardiac functions and CARDIAC OUTPUT can range from minimal to total hemodynamic collapse.Rupture: Forcible or traumatic tear or break of an organ or other soft part of the body.Software: Sequential operating programs and data which instruct the functioning of a digital computer.Tissue Adhesives: Substances used to cause adherence of tissue to tissue or tissue to non-tissue surfaces, as for prostheses.Aneurysm, Ruptured: The tearing or bursting of the weakened wall of the aneurysmal sac, usually heralded by sudden worsening pain. The great danger of a ruptured aneurysm is the large amount of blood spilling into the surrounding tissues and cavities, causing HEMORRHAGIC SHOCK.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.Cerebral Arteries: The arterial blood vessels supplying the CEREBRUM.Surgical Instruments: Hand-held tools or implements used by health professionals for the performance of surgical tasks.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.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.Memory, Short-Term: Remembrance of information for a few seconds to hours.Memory: Complex mental function having four distinct phases: (1) memorizing or learning, (2) retention, (3) recall, and (4) recognition. Clinically, it is usually subdivided into immediate, recent, and remote memory.Neurosurgical Procedures: Surgery performed on the nervous system or its parts.Back: The rear surface of an upright primate from the shoulders to the hip, or the dorsal surface of tetrapods.Memory Disorders: Disturbances in registering an impression, in the retention of an acquired impression, or in the recall of an impression. Memory impairments are associated with DEMENTIA; CRANIOCEREBRAL TRAUMA; ENCEPHALITIS; ALCOHOLISM (see also ALCOHOL AMNESTIC DISORDER); SCHIZOPHRENIA; and other conditions.Blood Vessels: Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).

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

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

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

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

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

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

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

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

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

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

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

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

Celiomesenteric anomaly with concurrent aneurysm. (7/984)

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

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

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

*Intracranial aneurysm

Cerebral aneurysms are classified both by size and shape. Small aneurysms have a diameter of less than 15 mm. Larger aneurysms ... Basilar artery aneurysms represent only 3%-5% of all intracranial aneurysms but are the most common aneurysms in the posterior ... The risk of rupture from a cerebral aneurysm varies according to the size of an aneurysm, with the risk rising as the aneurysm ... Aneurysm means an outpouching of a blood vessel wall that is filled with blood. Aneurysms occur at a point of weakness in the ...

*Aneurysm

... including coronary artery aneurysms, ventricular aneurysms, aneurysm of sinus of Valsalva, and aneurysms following cardiac ... Without treatment, these aneurysms will ultimately progress and rupture. Infection. A mycotic aneurysm is an aneurysm that ... Capillaries, specifically capillary aneurysms. Cerebral aneurysms, also known as intracranial or brain aneurysms, occur most ... The aorta, namely aortic aneurysms including thoracic aortic aneurysms and abdominal aortic aneurysms. The brain, including ...

*Rasmussen's aneurysm

... is a pulmonary artery aneurysm adjacent or within a tuberculous cavity. It occurs in up to 5% of patients ... Even when the pulmonary aneurysm is present, the actual bronchial bleeding may be from the bronchial artery, rather than from ... While the "classic" terminology relates the lesion to cavitary tuberculosis, the term is now used for the anatomic aneurysm ... van den Heuvel MM, van Rensburg JJ (2006). "Rasmussen's aneurysm". New England Journal of Medicine. 355 (16): e17. doi:10.1056/ ...

*Popliteal aneurysm

A popliteal aneurysm is a bulging (aneurysm) of the popliteal artery. People with popliteal aneurysms rarely have symptoms, and ... The cause of these aneurysms is unknown, but they are more common in older people and men and occur in both legs about 50% of ... It is unclear whether stenting or open surgery is a better for those with aneurysms that are not causing symptoms. "Popliteal ... Joshi, D; James, RL; Jones, L (Aug 31, 2014). "Endovascular versus open repair of asymptomatic popliteal artery aneurysm". The ...

*Mycotic aneurysm

An infected aneurysm (also known as mycotic aneurysm or microbial arteritis) is an aneurysm arising from bacterial infection of ... because mycotic aneurysms are not due to a fungal organism. Mycotic aneurysms account for 2.6% of aortic aneurysms. For the ... However, mycotic aneurysm is still used for all extracardiac or intracardiac aneurysms caused by infections, except for ... Experience with infected aneurysms of the abdominal aorta. Arch Surg. 1975;110:1281-1286. Mycotic (Infected) Aneurysm Caused by ...

*Ventricular aneurysm

Ventricular aneurysms usually grow at a very slow pace, but can still pose problems. Usually this type of aneurysm grows in the ... Ventricular aneurysms are one of the many complications that may occur after a heart attack. The word aneurysm refers to a ... Also, blood clots may form on the inside of ventricular aneurysms, and form embolisms. If such a clot escapes from the aneurysm ... Play media Left ventricular aneurysm as seen on ultrasound Play media Left ventricular aneurysm as seen on ultrasound It should ...

*Aneurysm (song)

"Aneurysm" is a song by the American grunge band Nirvana. Two studio versions have been released, and a live version from the ... In a review for AllMusic, music critic Stephen Thomas Erlewine said of the song "Aneurysm" on Incesticide, that it was "perhaps ... The second studio version of "Aneurysm" was recorded at Maida Vale Studios on November 9, 1991 for Mark Goodier's BBC session, ... According to the 2001 Kurt Cobain biography Heavier Than Heaven by Charles R. Cross, Cobain wrote the lyrics to "Aneurysm" ...

*Aortic aneurysm

Aortic aneurysms are classified by their location on the aorta. An aortic root aneurysm, or aneurysm of the sinus of Valsalva. ... or descending aneurysms. Abdominal aortic aneurysms, "AAA" or "Triple A," the most common form of aortic aneurysm, involve that ... Risk of aneurysm rupture is weighed against procedural risk. The diameter of the aneurysm, its rate of growth, the presence or ... Thoracoabdominal aortic aneurysms involve both the thoracic and abdominal aorta. Most intact aortic aneurysms do not produce ...

*Aneurysm (band)

Aneurysm official website Aneurysm at Encyclopaedia Metallum http://www.spirit-of-metal.com/groupe-groupe-Aneurysm-l-en.html " ... In June 2005, Aneurysm began recording "Shades", a 15 tracks concept in which Hansi Kürsch from Blind Guardian appeared as ... Aneurysm define their own genre cyber metal Gianmaria Carneri - Vocals, Guitar Peter Calmasini - Guitar Ivano Dalla Brea - Bass ... aviso borrar,«es inexistente y no hay pruebas de lo contrario»,~~~~}} Aneurysm was an Italian industrial metal band, formed in ...

*Cirsoid aneurysm

A cirsoid aneurysm is the dilation of a group of blood vessels due to congenital malformations with AV (arterio venous) ... Sometimes, a minor traumatic episode, such as a fall or bump on the head, can lead to the formation of a cirsoid aneurysm. ... Often these are trivial traumatic episodes Cirsoid aneurysm, in general, is a hemangioma of an artery. It most commonly occurs ...

*Aneurysm (disambiguation)

An aneurysm is a localized, blood-filled balloon-like bulge in the wall of a blood vessel. Aneurysm may also refer to Aneurysm ... band), an Italian metal ban "Aneurysm" (song), a song by Nirvana. ...

*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 ... However, this is the case in less than half of all aneurysms. Ultrasonography is used to screen for aneurysms and to determine ... Two modes of repair are available for an AAA: open aneurysm repair, and endovascular aneurysm repair (EVAR). An intervention is ... Alternative less often used methods for visualization of an aneurysm include MRI and angiography. An aneurysm ruptures if the ...

*Coronary artery aneurysm

... is an abnormal dilatation of part of the coronary artery. Acquired causes include atherosclerosis, ... Seabra-Gomes R, Somerville J, Ross DN, Emanuel R, Parker DJ, Wong M (April 1974). "Congenital coronary artery aneurysms". Br ... Nichols L, Lagana S, Parwani A (May 2008). "Coronary artery aneurysm: a review and hypothesis regarding etiology". Arch. Pathol ... Meinert D, Mohammed Z (March 2000). "MRI of congenital coronary artery aneurysm". Br J Radiol. 73 (867): 322-4. PMID 10817051. ...

*Thoracic aortic aneurysm

A thoracic aortic aneurysm is an aortic aneurysm that presents primarily in the thorax. A thoracic aortic aneurysm is the " ... Thoracic aneurysms are less common than an abdominal aortic aneurysm. However, a syphilitic aneurysm is more likely to be a ... Thoracic Aortic Aneurysm at eMedicine Aneurysms: Aneurysms and Aortic Dissection at Merck Manual of Diagnosis and Therapy Home ... Aneurysms in the ascending aorta may require surgery at a smaller size than aneurysms in the descending aorta. Treatment may be ...

*Inflammatory aortic aneurysm

These are less common than abdominal aneurysms. Small aneurysms generally pose no threat. However, aneurysms increase the risk ... Aneurysm may also rupture. It is fragile and may burst under stress. The rupture of an aortic aneurysm is a catastrophic, life- ... If the aneurysm is large, a monitoring ultrasound may need to occur every 6 to 12 months. If the aneurysm is small, monitoring ... When an aneurysm is suspected or diagnosed, it is important to: Pinpoint the location of the aneurysm. Estimate its size. Find ...

*Endovascular aneurysm repair

May 2011). "A randomized controlled trial of endovascular aneurysm repair versus open surgery for abdominal aortic aneurysms in ... debris from the aneurysm that dislodge and travel into other arteries). Lastly, repair is also indicated for aneurysms that are ... fenestrated endovascular aortic/aneurysm repair). When the aneurysm begins at close to the renal arteries, standard EVAR may be ... Patients with aneurysms require elective repair of their aneurysm when it reaches a diameter large enough (typically greater ...

*Charcot-Bouchard aneurysm

Charcot-Bouchard aneurysms (also known as miliary aneurysms or microaneurysms) are aneurysms of the brain vasculature which ... Charcot-Bouchard aneurysms are a common cause of cerebral hemorrhage. If a Charcot-Bouchard aneurysm ruptures, it will lead to ... Charcot-Bouchard aneurysms are aneurysms in the small penetrating blood vessels of the brain. They are associated with ... Charcot-Bouchard aneurysms are named for the French physicians Jean-Martin Charcot and Charles-Joseph Bouchard. It was Bouchard ...

*Infectious intracranial aneurysm

... fungal aneurysm, spirochetal aneurysm, infested or amebic aneurysm, viral aneurysm and phytotic aneurysm, according to the ... An infectious intracranial aneurysm (IIA, also called mycotic aneurysm) is a cerebral aneurysm that is caused by infection of ... The terms infectious aneurysm and infective aneurysm are flawed because they imply that the aneurysm itself is the infecting ... The term mycotic aneurysm, initially attributed to Osler and used to describe bacterial intracranial aneurysms, is a misnomer. ...

*International Subarachnoid Aneurysm Trial

The long-term data for unruptured aneurysms are still being gathered. Cerebral aneurysm Subarachnoid hemorrhage AJNR Am J ... given that the rebleed rate of coiled aneurysms appears to be 8 times higher than that of clipping treated aneurysms in this ... ISAT sought to measure outcomes of cerebral aneurysm patients at 2 and 12 months using a type of a Rankin scale. The study was ... The International Subarachnoid Aneurysm Trial (ISAT) was a large multicentre, prospective randomised clinical medical trial, ...

*Familial thoracic aortic aneurysm

... is an autosomal dominant disorder of large arteries. There is an association between familial ... In the aorta, this can result in the formation of a fusiform aneurysm. There is also increased risk of aortic dissection. Types ... GeneReview/NCBI/NIH/UW entry on Thoracic Aortic Aneurysms and Aortic Dissections. ... thoracic aortic aneurysm, Marfan syndrome and massive baclofen overdose as well as other hereditary connective tissue disorders ...

*Aneurysm of sinus of Valsalva

Aortic aneurysm Thoracic aortic aneurysm Abdominal aortic aneurysm Topi, Bernard; John Jinu (2012). "An uncommon cause of a ... A ruptured aneurysm typically leads to an aortocardiac shunt and progressively worsening heart failure. An aneurysm of the ... Aneurysm of the aortic sinus, also known as the sinus of Valsalva, is comparatively rare. When present, it is usually in either ... Medical therapy of aneurysm of the aortic sinus includes blood pressure control through the use of drugs, such as beta blockers ...

*Capillary aneurysms

... are flesh colored solitary lesions, resembling an intradermal nevus, which may suddenly grow larger and ...

*DMOZ - Health: Conditions and Diseases: Cardiovascular Disorders: Vascular Disorders: Aneurysm

Aortic Aneurysm A public service web page with general information about a medical disease of aortic aneurysms written by a ... The Aneurysm Information Project Information on all aspects of the disease plus a support group offering insights from patients ... Brain Aneurysm Foundation A non-profit organization located in Boston, whose mission is to provide support networks and ... NHS Choices: Repair of Abdominal Aortic Aneurysm Provides information on this surgical procedure. Includes details of why it ...

*Ascending aorta

Bret P Nelson (2015-10-01). "Thoracic Aneurysm". Medscape. Retrieved 2017-04-16. Wolak, Arik; Gransar, Heidi; Thomson, Louise E ... whereas a diameter greater than 4.5 cm is generally considered to be a thoracic aortic aneurysm. Still, the average diameter in ...
Primary femoral aneurysms are uncommon and are frequently associated with other aneurysms, particularly those of the aorta and popliteal arteries. True isolated atherosclerotic aneurysm of the superficial femoral artery is a rare pathology [2].. Rigdon et al discussed 17 "arteriosclerotic" superficial femoral artery aneurysms in 14 patients, which revealed complication at presentation in 65% - rupture in 35%, thrombosis in 18%, and distal emboli in 12%. However, limb salvage was 94% and there were no perioperative deaths [3]. Males (75%) were more common than females, and the average age was 77 years (range 61 to 93) [3].. True femoral artery aneurysms are attributed to weakening of the arterial wall due to atherosclerosis. True femoral artery aneurysms are relatively rare and are found in elderly men who have strong smoking history. Aortic aneurysms are approximately 10 times more common. According to Levi et al distal embolization occurs in 0-26% of cases, acute thrombosis occurs in around 15% ...
Popliteal aneurysms are the most common peripheral artery aneurysms, followed by femoral artery aneurysms. Patients with popliteal artery aneurysms have a 70% risk of concurrent abdominal aortic aneurysm (AAA). Similarly, patients with AAA have a 3.1% risk of popliteal aneurysm. Patients have bilateral popliteal artery aneurysms in 50-70% of cases [1]. Patients with popliteal artery aneurysms usually present with critical limb ischemia, resulting from aneurysm thrombosis. Rupture of the popliteal aneurysms is uncommon.. Femoral aneurysms are asymptomatic in 30-40% of patients at the time of initial presentation. Approximately one third of patients presents with local symptoms such as groin pain or groin mass. Of patients presenting with femoral aneurysms 10-65% have complications at the time of initial presentation, including chronic thrombosis with claudication, acute thrombosis with limb ischaemia and rupture. Distal embolisation is less common. The majority of patients with femoral aneurysms ...
True pulmonary artery aneurysms are rare. Deterling and Clagett reported only eight cases in a review of 109 571 necropsies.2 Aggressive surgical approaches have often been advocated based on previous reports of dissection or rupture. Pulmonary artery aneurysms, even when very large, in the presence of low pulmonary pressures and the absence of left to right congenital or acquired shunts, may not pose such a risk in sharp contrast with those with pulmonary hypertension or Eisenmengers syndrome.3,4 Patients in this series all had low pulmonary arterial pressures, no significant congenital or acquired left to right shunts, and giant pulmonary artery aneurysms involving the main or proximal branch pulmonary arteries. They survived to a median age of 52 years without evidence of intimal tear or medial dissection and presented because of right ventricular dysfunction secondary to pulmonary regurgitation.. True aneurysms involve all components of the vessel wall.5 There may be associated intrinsic ...
True isolated atherosclerotic aneurysm of the superficial femoral artery is a rare patology. We report a case of ruptured superficial femoral artery aneurysms (SFAA) not associated with aortic, common femoral or popliteal artery aneurysms. An emergency surgical procedure was performed and, after endoaneurysmal branches ligation, a ePTFE graft interposition was performed. The litterature review shows a prevalence of rupture as compared with ischemic complications and the need for surgical repair in case of SFAA with diameter twice the normal vessel size. Early diagnosis and management are recommended because of the lower morbility and mortality rates associated with elective surgery by comparison with emergency procedures. ...
... s are uncommon and occur in a broad range of patients due to many etiologies. True aneurysms involving all layers of the carotid arterial wall and false aneurysms both occur. Overall, extracranial carotid artery an
Pulmonary artery aneurysms constitute ,1% of aneurysms occurring in the thoracic cavity. Congenital cardiac defects are responsible for the majority (,50%) of cases, however, pulmonary artery aneurysm is a rare sequelae of pulmonary tuberculosis reported in about 5% of patients with chronic cavitary tuberculosis on autopsy. The natural history of this potentially fatal condition remains poorly understood and guidelines for optimal management are controversial. A 24-year-old man, a nursing student of African descent, was referred to us from an up-country regional hospital with a 4-week history of recurrent episodes of breathlessness, awareness of heartbeats and coughing blood 3 weeks after completing a 6-month course of anti-tuberculosis drugs. A physical examination revealed conjuctival and palmar pallor but there were no stigmata of connective tissue disorders, systemic vasculitides or congenital heart disease. An examination of the cardiovascular system revealed accentuated second heart sound ...
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The limited number of patients with identified Hughes-Stovin syndrome has precluded the initiation of controlled studies of the management of patients with pulmonary arterial aneurysms [3]. Corticosteroids, alone or in combination with an immunosuppressant, are generally considered first-line therapy [4]. Surgical resection has been the traditional treatment of choice when the risk of lethal hemoptysis necessitates more definitive therapy. Total pneumonectomy or lobectomy has been performed with some successful results [5].. The high morbidity associated with surgery and the frequent bilaterality and multifocality of the pulmonary artery aneurysms make transcatheter embolization an attractive alternative to surgery in most cases. To our knowledge, few patients with Hughes-Stovin syndrome have been treated by performing embolization of a pulmonary arterial aneurysm with the use of several agents, including steel coils, Ethibloc, and isobutyl cyanoacrylate, an epoxy [4, 6, 7].. This is the first ...
Carotid artery aneurysm: Find the most comprehensive real-world symptom and treatment data on carotid artery aneurysm at PatientsLikeMe. 23 patients with carotid artery aneurysm experience fatigue, depressed mood, pain, anxious mood, and insomnia and use Amphetamine-Dextroamphetamine, Cyclobenzaprine, Handicap/Disability Parking Permit, Pregabalin, and Pyridostigmine to treat their carotid artery aneurysm and its symptoms.
This is a prospective, multi-center study of patients with intracranial or peripheral aneurysms who are treated by the PC 400 System. The primary objective is to gather post market data on the Penumbra Coil 400 (PC 400) System in the acute treatment of intracranial and peripheral aneurysms. Approximately 2,000 patients with intracranial or peripheral aneurysms treated by the PC 400 System at up to 100 centers will be enrolled. Data for each patient are collected up to discharge or 3 days post-procedure, whichever occurs sooner. Long term follow-up to one year will be conducted in accordance to the standard of care at each participating hospital ...
2018 The Authors Introduction: The case of an idiopathic thrombosed popliteal aneurysm is described in an otherwise healthy 6 year old child. This is the fourth reported case and the second youngest patient to present with an idiopathic isolated popliteal aneurysm. Report: A 6 year old boy presented with an acutely ischaemic right foot. Computed tomography angiography confirmed a thrombosed popliteal aneurysm. A femoropopliteal bypass was performed with reversed long saphenous vein and ligation of the aneurysm. Yearly follow up is ongoing with ultrasound surveillance; the childs growth and development is unaffected, and the graft is patent. There was a readmission over six years later with claudication on the right side. There was evidence of thrombus in the graft with associated distal embolisation, which was managed conservatively with anticoagulation. Discussion: Given the rarity of such presentations in the paediatric population, there is minimal good quality data to guide treatment. There ...
The shape of an aneurysm is described as being fusiform or saccular which helps to identify a true aneurysm. A true aneurysm involves all three layers of the arterial blood vessel wall. The more common fusiform-shaped aneurysm bulges or balloons out on all sides of the aorta. A saccular-shaped aneurysm bulges or balloons out only on one side.. The aorta is under constant pressure from blood being ejected from the heart. With each heartbeat, the walls of the aorta expand and spring back, exerting continual pressure or stress on the already weakened aneurysm wall. Therefore, there is a potential for rupture (bursting) or dissection (separation of the layers of the thoracic aortic wall), which may cause life-threatening hemorrhage (uncontrolled bleeding) and, potentially, death.. Once formed, an aneurysm will gradually increase in size and there will be a progressive weakening of the aneurysm wall. Treatment for a thoracic aneurysm may include surgical repair or removal of the aneurysm to prevent ...
The shape of an aneurysm is described as being fusiform or saccular which helps to identify a true aneurysm. A true aneurysm involves all three layers of the arterial blood vessel wall. The more common fusiform-shaped aneurysm bulges or balloons out on all sides of the aorta. A saccular-shaped aneurysm bulges or balloons out only on one side.. The aorta is under constant pressure from blood being ejected from the heart. With each heartbeat, the walls of the aorta expand and spring back, exerting continual pressure or stress on the already weakened aneurysm wall. Therefore, there is a potential for rupture (bursting) or dissection (separation of the layers of the thoracic aortic wall), which may cause life-threatening hemorrhage (uncontrolled bleeding) and, potentially, death.. Once formed, an aneurysm will gradually increase in size and there will be a progressive weakening of the aneurysm wall. Treatment for a thoracic aneurysm may include surgical repair or removal of the aneurysm to prevent ...
Find the best popliteal aneurysm doctors in Kolkata. Get guidance from medical experts to select popliteal aneurysm specialist in Kolkata from trusted hospitals - credihealth.com
Behcet disease is a sort of systemic vasculitis characterized by oral and genital ulcers as well as uveitis of the eye. Thoracic manifestations of Behcet disease include multiple bilateral pulmonary artery aneurysms that are of fusiform or saccul...
Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. Colantino on what does it mean to have a popliteal aneurysm rupture: An aneurysm is an dilitation of a blood vessel. This is the result of weakening in the wall of the artery. The weakened wall can rupture, and bleeding into the tissues around the knee occurs, causing tremendous pain and swelling. The blood outside the artery can then impinge on flow to the lower leg and foot, causing ischemia. In all, very bad, and one of the reasons to fix aneurysms electively. for topic: What Does It Mean To Have A Popliteal Aneurysm Rupture
WHAT THIS STUDY ADDS Previous comparisons between open and endovascular repair of popliteal aneurysms have focused on asymptomatic patients, and have short follow up. This study is strengthened by the fact that it is contemporary, population based, without any selection bias, reporting on all kinds of presentations, and has approximately 90% 1 year follow up data. It shows that endovascular repair has significantly inferior results compared with open repair, in particular in the group of patients who present with acute ischaemia. We believe these results will make many vascular surgeons think twice before they treat patients endovascularly in the future. Background: Popliteal aneurysm (PA) is traditionally treated by open repair (OR). Endovascular repair (ER) has become more common. The aim was to describe time trends and compare results (OR/ER). Methods: The Swedish vascular registry, Swedvasc, has a specific PA module. Data were collected (2008-2012) and supplemented with a specific protocol ...
Charcot-Bouchard aneurysms (also known as miliary aneurysms or microaneurysms) are aneurysms of the brain vasculature which occur in small blood vessels (less than 300 micrometre diameter). Charcot-Bouchard aneurysms are most often located in the lenticulostriate vessels of the basal ganglia and are associated with chronic hypertension. Charcot-Bouchard aneurysms are a common cause of cerebral hemorrhage. If a Charcot-Bouchard aneurysm ruptures, it will lead to an intracerebral hemorrhage, which can cause hemorrhagic stroke, typically experienced as a sudden focal paralysis or loss of sensation. Charcot-Bouchard aneurysms are aneurysms in the small penetrating blood vessels of the brain. They are associated with hypertension. The common artery involved is the lenticulostriate branch of the middle cerebral artery. Common locations of hypertensive hemorrhages include the putamen, caudate, thalamus, pons, and cerebellum.[citation needed] As with any aneurysm, once formed they have a tendency to ...
Anastomotic aneurysms occurs at various levels of arterial system. Determining their location and incidence rate required investigation of large patient clinical material. Material and methods. In the years 1989-2010 in local centre 230 anastomotic aneurysms were operated in 180 patients. Results. For 187 (81.3%) patients anastomotic aneurysms were localised in the groin, while for remaining 43 (18.7%) they occurred in other localisations. In aortic arch branch they occurred four times (1.7), in descending aorta - three times (1.3%), in abdominal aorta - 14 (6.1%) and in iliac arteries - 6 (2.6%). While for anastomosis with popliteal artery they were diagnosed in 16 (7%) patients. Own clinical material was compared with literature data. Conclusions. Anastomotic aneurysms in over 80% of cases occur in the groin, remaining percentage corresponds to other localisations ...
Arterial aneurism. Close-up of an aneurism in the superior mesenteric artery. An aneurysm occurs when an artery wall weakens and swells like a balloon. If it bursts, an aneurysm can cause severe internal haemorrhage. - Stock Image C023/5657
Venous aneurysms may be either congenital or acquired. Most acquired venous aneurysms develop secondary to a traumatic vascular injury.2-4 Traumatic injury to a particular venous segment may cause disruption and weakness in the vessel wall and gradually result in dilatation and aneurysm formation, either true or false. Peripheral venous aneurysms may be seen in both lower and upper extremities and most have little clinical significance.7 However, they may present with severe clinical pictures such as deep venous thrombosis and pulmonary embolism.8. DSA produced a false positive result in this case. The wrong preoperative diagnosis in this case may be a result of problems attributable to angiography. Like almost every other diagnostic modality, it has user and technique dependent aspects to it. An error in the chain of consecutive steps may have resulted in the misdiagnosis. The premature diagnosis based on colour Doppler ultrasound and early DSA images may have been altered by DSA examination at ...
Development of aspergilloma is common in cases with a fungus ball-like shadow in cavities due to old tuberculosis. Some reports have shown that blood clots tend to appear as a fungus ball-like shadow. A 71-year-old man with a history of pulmonary tuberculosis presented with a fungus ball-like shadow in an old cavity and hemoptysis. There was no evidence of aspergillus infection on various examinations. We confirmed a blood clot and aneurysm of an artery under direct vision by bronchoscopy. A lateral thoracic artery aneurysm was detected by angiography ...
Expertise, Disease and Conditions: Abdominal Aortic Aneurysm (AAA), Aneurysms, Angioplasty, Aortic Aneurysms, Aortic Stent-Grafts/Endografts, Aortic Surgery, Arterial Aneurysm, Arterial Occlusive Disease, Arterial Ultrasound, Arteriovenous Fistulas (AVF), Atherosclerosis, Atherosclerosis Imaging, Carotid Artery Disease, Carotid Artery Stenosis, Carotid Artery Stenting, Carotid Endarterectomy, Carotid Ultrasound, Cerebrovascular Diseases, Claudication, Deep Vein Thrombosis (DVT), Diabetic Foot Ulcers, Dialysis Access, Endovascular Interventions, Endovascular Stent Grafts, Endovascular Surgery, Endovascular Therapies, Extractional Atherectomy, Femoral Artery Aneurysms, General Vascular Surgery, Limb Salvage Revascularization, Limb Threatening Ischemia, Lower Extremity Angioplasty, Lower Extremity Revascularization, Lower Extremity Stenting, Mesenteric Arterial Insufficiency, Minimally Invasive Endovascular Aneurysm Repair, Minimally Invasive Interventions, Non-Invasive Flow Studies (NIFS), ...
Expertise, Disease and Conditions: Abdominal Aortic Aneurysm (AAA), Aneurysms, Angioplasty, Aortic Aneurysms, Aortic Stent-Grafts/Endografts, Aortic Surgery, Arterial Aneurysm, Arterial Occlusive Disease, Arterial Ultrasound, Arteriovenous Fistulas (AVF), Atherosclerosis, Atherosclerosis Imaging, Carotid Artery Disease, Carotid Artery Stenosis, Carotid Artery Stenting, Carotid Endarterectomy, Carotid Ultrasound, Cerebrovascular Diseases, Claudication, Deep Vein Thrombosis (DVT), Diabetic Foot Ulcers, Dialysis Access, Endovascular Interventions, Endovascular Stent Grafts, Endovascular Surgery, Endovascular Therapies, Extractional Atherectomy, Femoral Artery Aneurysms, General Vascular Surgery, Limb Salvage Revascularization, Limb Threatening Ischemia, Lower Extremity Angioplasty, Lower Extremity Revascularization, Lower Extremity Stenting, Mesenteric Arterial Insufficiency, Minimally Invasive Endovascular Aneurysm Repair, Minimally Invasive Interventions, Non-Invasive Flow Studies (NIFS), ...
... outside of the brain.. The most common location for an aneurysm to occur outside of the brain is in the main artery in the stomach-the abdominal aorta. Abdominal Aortic Aneurysms ("AAA") can be lethal if not recognized and treated.. The "normal size" (diameter) of the abdominal aorta is approximately one inch (2.5 cm.) Typically an artery is recognized to have an aneurysm when its diameter increases by 50%, which would be about 1.5" or approximately 4cm from side to side. Arteries behave much like water balloons-that is, the bigger they get, the thinner they get. The thinner they get, the more chance there is of the artery popping or rupturing. A ruptured abdominal aortic aneurysm (AAA) is often fatal as the ruptured artery leads to massive internal bleeding and usually immediate death from exsanguination.. Smaller aneurysms are less likely to rupture than larger ones. Typically, when an aneurysm reaches 5cm, consideration is given to repairing the artery to prevent rupture. The exact ...
... , or that form of the disease which consists in a dilatation of all the coats of the vessel, is extremely rare: Pelletan mentions an example of it in his Clinique...
Treatment of a renal artery aneurysm depends on symptoms and the size and location of the aneurysm. Some smaller aneurysms may not be treated, but may be watched for growth or problems.. Surgery may be used to treat larger, tearing, or growing aneurysms. It may also be used for aneurysms causing lack of blood flow to the kidney and high blood pressure, and aneurysms causing symptoms.. Because of the increased risk for rupture (bursting), a renal artery aneurysm in a pregnant woman or a woman of childbearing age will generally be treated with surgery.. ...
In this study, we investigated the role of cell type-specific SOCS3/STAT3 signaling in aneurysm development. Unexpectedly, inhibition of STAT3 signaling in vascular and myeloid cells did not alter mice susceptibility to AAA. We therefore considered a role for T cells. A review of the literature indicated that their role in vascular aneurysm was still debated.6-9 Th1 responses have been shown to be pathogenic in calcium chloride-induced aneurysm formation,7 whereas Th2-mediated immunity contributed to aneurysms in allografted aortas.8 In the Ang II model, lymphocyte deficiency under a hypercholesterolemic Apoe−/−/Rag−/− background did not significantly alter aneurysm development.9 In contrast, we have previously observed a significant protection from the disease in normocholestomic Rag−/− mice using a more severe aneurysm model involving neutralization of TGF-β activity on top of Ang II infusion.6 It was therefore remarkable that the selective transfer of CD4+ T cells exhibiting ...
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 ...
Circulatory Failure and Lactic Acidosis Associated with Giant Saphenous Vein Graft Aneurysm, Rick Mooi, Carsten Arnoldussen and Jos le Noble
Results: In our experience, there were 47 males and the mean age was 62 years (16-80). In patients with PAAs and VAAs, technical success with the MFM was 100%. At 30 days, there were no deaths. Initial MFM patency was 97.5% (39/40) with patency of the thrombosed MFM successfully restored. Longer-term follow-up (mean 16±8 months) demonstrated progressive thrombosis and shrinkage of the aneurysm sacs and all side-branches were patent. In patients with aortic aneurysms, technical success was 100%, with no complications and no deaths at 30 days. Longer-term follow-up (8±7 months) demonstrated aneurysm-related survival of 100%, all-cause survival of 83.3%, intervention-free survival of 100% and 100% patency of the side branches. The longest duration for aneurysm sac thrombosis was 18 months. A significant mean diameter reduction was observed at 6 months (17.3 mm for the transversal maximal diameter and 13.83 mm for the antero-posterior diameter) in the TAAA group. In the literature review, there ...
Diagnosis of carotid artery aneurysm (costs for program #275058) ✔ Klinik Im Park ✔ Department of Vascular Surgery ✔ BookingHealth.com
A case of a portal venous aneurysm found incidentally on the staging of high-grade prostate cancer. In this case, the patient was asymptomatic and has not experienced any complications.
I really could use some input on this one. POSTOPERATIVE DIAGNOSIS: 1. Dysplastic pulmonary valve with mass. 2. Coronary artery disease. 3. Large pulm
OBJECTIVES: Medical therapies have not proven to be effective in halting or reversing the progressive dilation of aneurysms. Further, no therapy exists for small aortic aneurysms due to the significant risks of surgical repair. Smooth muscle cells (SMCs) have the ability to produce extracellular matrix (ECM) that is destroyed in the vessel wall during aneurysm formation. We hypothesized that polymeric nanoparticles bearing ascorbic acid (AA) and retinoic acid (RA) will be effective in reducing inflammation and promoting SMC synthesis of the ECM proteins, collagen and elastin, thus inhibiting aneurysm formation in vivo.. METHODS and RESULTS: Block co-polymer nanoparticles made of polyethylene oxide (PEO) and poly(ϵ-caprolactone) (PCL) capable of bearing both hydrophilic (AA) and hydrophobic (RA) drugs were fabricated by the formation of an organic/aqueous bi-phase stable emulsion. The particles were analyzed to ensure proper spherical morphology, nano diameter, and entrapment of drug prior to in ...
Splanchnic Artery Aneurysms powerpoint presentation slides is available for free download uploaded in belonging ppt presentation Health & Wellness category, Download and Use!
Diabetes is a negative risk factor for aortic aneurysm, but the underlying explanation for this phenomenon is unknown. We have previously demonstrated that Cell Division Autoantigen 1 (CDA1), which enhances TGF-β signaling, is upregulated in diabetes. We hypothesized that CDA1 plays a key role in conferring the protective effect of diabetes against aortic aneurysms. Male wildtype, CDA1 knockout, Apolipoprotein E (ApoE) knockout and CDA1/ApoE double knockout (dKO) mice were rendered diabetic. Whereas aneurysms were not observed in diabetic ApoE knockout and wildtype mice, 40% of diabetic dKO mice developed aortic aneurysms. These aneurysms were associated with attenuated aortic TGF-β signaling, reduced expression of various collagens as well as increased aortic macrophage infiltration and matrix metalloproteinase12 expression. In the well characterized model of angiotensin II (AngII) induced aneurysm formation, concomitant diabetes reduced fatal aortic rupture and attenuated suprarenal aortic ...
Amazon has announced Simple Workflow Service (SWF), a service for orchestrating distributed and fault-tolerant tasks that are part of a workflow implementing a business process. Are the recently announced DynamoDB and SWF pieces of a bigger puzzle suggesting Amazons entering into PaaS cloud computing?
OpenLogic is launching a platform-as-a-service offering that aims to give users the flexibility that many developers like about infrastructure-as-a-service...
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Subclavian artery aneurysms are relatively rare in comparison with other peripheral aneurysms. We report a 65-year-old woman with multiple atherosclerotic aneurysms of the subclavian artery, aortic arch saccular aneurysm and abdominal aortic aneurysm
Splenic artery aneurysm (SAA) is defined as an abnormal dilatation of the splenic artery more than 1 cm in diameter. It was first described on cadavers in 1770 by Beaussier [7]. It accounts for approximately 60 % of all visceral arterial aneurysms [2]. It is the third most common intra-abdominal aneurysm, following aortic and iliac artery aneurysms [3]. SAA is rarely seen with a prevalence of 1 % [1]. It is four times more common in females compared to males [8-10]. Risk factors correlating to the development of SAA include fibromuscular dysplasia, collagen vascular diseases, female gender, history of multiple pregnancies, and portal hypertension, although the pathogenesis is not fully understood [11].. Splenic artery pseudoaneurysms are less prevalent than true SAA. They differ from true SAA in that the dilatation occurs following the disruption of one or more layers of the vessel wall. Splenic artery accounts for the majority of splanchnic pseudoaneurysms. Unlike true SAA, they have a slight ...
PubMed Central Canada (PMC Canada) provides free access to a stable and permanent online digital archive of full-text, peer-reviewed health and life sciences research publications. It builds on PubMed Central (PMC), the U.S. National Institutes of Health (NIH) free digital archive of biomedical and life sciences journal literature and is a member of the broader PMC International (PMCI) network of e-repositories.
Although pulmonary artery aneurysms are a rare vascular anomaly, they are seen in a wide variety of conditions, such as congenital heart disease, infection, trauma, pulmonary hypertension, cystic medial necrosis and generalized vasculitis. To our kno
Intracranial aneurysm, also known as brain aneurysm, is a cerebrovascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ballooning of the blood vessel. Aneurysms in the posterior circulation (basilar artery, vertebral arteries and posterior communicating artery) have a higher risk of rupture. Basilar artery aneurysms represent only 3%-5% of all intracranial aneurysms but are the most common aneurysms in the posterior circulation. Cerebral aneurysms are classified both by size and shape. Small aneurysms have a diameter of less than 15 mm. Larger aneurysms include those classified as large (15 to 25 mm), giant (25 to 50 mm), and super-giant (over 50 mm). Saccular aneurysms, also known as berry aneurysms, appear as a round outpouching and are the most common form of cerebral aneurysm. Fusiform dolichoectatic aneurysms represent a widening of a segment of an artery around the entire blood vessel, rather than just arising from a side of an arterys ...
A case of ruptured gastroepiploic artery aneurysm associated with thoracic aortic aneurysm is presented. Gastroepiploic artery aneurysms are rare, but the association of visceral artery aneurysm and aortic aneurysm is clinically significant and is emphasized in this report.
An aneurysm is defined as dilatation of the artery greater than 50% in diameter. Aneurysms are categorized as fusiform or saccular. The saccular aneurysms of the ascending aorta are rarely seen and are usually life-threatening. Excessive use of biologicglue, graft infection, mediastinitis, aortic dissection, atherosclerosis, hypertension, degeneration of a penetrating atherosclerotic ulcer, poorsurgical technique, trauma, fungal infections and previous aortic surgery (presumably due to the cannulation site) are the etiologic risk factors for the development of a false or true aneurysm of the ascending aorta [1]. There are a few reports for saccular aneurysm of the ascending aorta which are following coronary artery bypass grafting surgery. The wall stressis greater in saccular aneurysms rather than fusiform aneurysms. The disruption of the vesse lwall at the cannulation site oral long the aortic suture lines lead to saccular aneurysm.. Theaortic false aneurysm may surrounded and restricted by ...
A splenic artery aneurysm is a situation in which a blood vessel connected to the spleen becomes swollen. Its extremely dangerous...
Portal vein aneurysms are extremely rare, less than 200 cases have been reported until late 2015. They are defined as a portal vein diameter exceeding 19 mm for cirrhotic patients and 15 mm in normal livers. Most patients are asymptomatic, but complications may occur.We report a case of a 68-year-old female admitted for etiological assessment of a portal hypertension revealed by an upper gastro intestinal bleeding, who was incidentally diagnosed with a portal vein aneurysm.
This is a transforming event in cerebrovascular surgery," said Nelson, who has implanted the device in about 75 patients in the U.S.. Large aneurysms, which measure between 10 mm and 25 mm, and giant aneurysms, which are greater than 25 mm in size, are rare, with about 2,000 reported cases each year. There is a greater risk of rupture with giant aneurysms, and they are much more difficult to treat.. Smaller, uniformly shaped aneurysms with small necks attaching them to the artery can be treated by surgically clipping the base of the aneurysm, or by pushing platinum coils into the aneurysms to initiate a clotting reaction. But clipping the base of an large aneurysm is very difficult and extremely risky, and often coils wont fit into an oddly-shaped aneurysm, explained Nelson.. The flexible Pipeline, which resembles a mesh tube, is inserted into the artery from which the aneurysm has developed. It works by cutting off the blood supply to the aneurysm, which, over time, eliminates the aneurysm ...
DISCUSSION. Traumatic arterial injuries have a high mortality rate and lead to severe complications. They can be caused by penetrating or blunt traumas or may be iatrogenic. Injuries can lead to rupture of arteries, hemorrhage, arterial occlusion, dissection and formation of pseudoaneurysms, true aneurysms or arteriovenous fistulas.3 Aneurysms of the superficial temporal artery are rare events and there are currently a total of around 200 cases reported in the literature.4 In 95% of cases, aneurysms of the temporal artery have traumatic origin and form pseudoaneurysms. The remaining 5-8% are congenital aneurysms or have atherosclerotic origin.5,6 A true traumatic aneurysm, involving all three layers of the vessel, is an extremely rare event. It is believed that true aneurysms may develop from a preexisting vascular condition, but this remains uncertain.7 The first case of temporal artery aneurysm was described in 1740 by Thomas Bartolin.2 In 1934, Winslow and Edwards collected 108 cases of ...
Varying endovascular treatment alternatives currently are available for the management of cerebral aneurysms. 3D coil technology and balloon remodeling techniques have been very important advances (5, 9). During recent years, new treatment materials and techniques offering a different concept in endovascular reconstruction have been described for the more complicated broad necked, fusiform, and large and giant aneurysms. One of these is the use of liquid embolic Onyx (MTI-tv3 Inc., Irvine, CA) for cerebral aneurysm treatment, both with or without stent, which has recently been reported in the literature (6, 10). These studies have shown that Onyx can produce durable aneurysm occlusion in patients with difficult large and giant wide necked intracranial aneurysms in whom other endovascular techniques are likely to fail and for whom surgery carries substantial morbidity risk. The clinical results and complication rates seem comparable to those of other endovascular techniques for similar patient ...
Rationale: Aneurysm development, progression and rupture are characterised by extensive inflammation, dominated by the infiltration of T-cells, B-cells and macrophages. Recent studies into the pathophysiology of aneurysm wall degradation suggest a close relation between increased mechanical stress and the local activation of infiltrated lymphocytes and macrophages. The non-invasive detection of aneurysm wall inflammation, using 18-fluorodeoxyglucose positron emission tomography (FDG-PET) might therefore provide valuable information on the extend of the disease and could clarify the role of mechanical stress on the propagation of aneurysm wall inflammation.. Objective: Correlation of FDG uptake and in vitro aneurysm wall tensile strength. (primary objective). The effect of aneurysm sac depressurisation, after endovascular aneurysm repair, on aneurysm wall inflammation (secondary objective).. Study design: Observational case series (pilot). Study population: Patients scheduled for conventional ...
Visceral vessel processes are primarily or secondarily included in a multitude of clinical abdominal symptoms, with which the specialist in internal medicine is confronted. The spectrum ranges from more sharply outlined manifestations, such as chronic ischemic bowel disease up to dysfunctional disturbances of blood pressure regulation, such as high-grade renal artery stenosis. Sometimes diseases with prognostic implications, such as arterial aneurysms, are revealed as incidental findings. As a rule the B‑mode and duplex ultrasound can often be complemented by computed tomography (CT) and magnetic resonance imaging (MRI), as in aneurysms or portal vein thrombosis or the indications for subsequent digital subtraction angiography (DSA) and catheter-based therapy can be directly obtained from duplex and Doppler ultrasound ...
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 ...
Results Inclusions started in July 2014. End of February 2016, 92 patients with 92 aneurysms were included. The expectation is to have inclusions completed end of April 2016. Most patients were females (80/92, 87.0%). All but one patient were mRS 0 or 1 before the treatment.. Among the 92 aneurysms, 22 (23.9%) were aneurysm remnant after a previous treatment and the 70 others (76.1%) were unruptured. Aneurysm locations were internal carotid artery (n = 83, 90.2%), anterior communicating artery (n = 6, 6.5%), and middle cerebral artery (n = 3, 3.3%). Aneurysm size was ,10 mm in 57 aneurysms (62.0%), 10 to 24 mm in 31 aneurysms (33.7%), and ,24 mm in 3 aneurysms (3.3%).. Neck size was ,4 mm in 24/91 aneurysms (26.4%) and , or = 4 mm in 67/91 aneurysms (73.6%).. Placement of the flow diverter was achieved in all cases. Intra-operative events were reported in 7/92 patients (7.6%), including technical problems (n = 3), thromboembolic events (n = 3), and others (n = 1). Postoperative events, ...
About 3 out of 4 abdominal aortic aneurysms dont cause symptoms. An aneurysm may be found by X-ray, computed tomography (CT or CAT) scan, or magnetic resonance imaging (MRI) that was done for other reasons. Since abdominal aneurysm may not have symptoms, its called the "silent killer" because it may rupture before being diagnosed. Pain is the most common symptom of an abdominal aortic aneurysm. The pain associated with an abdominal aortic aneurysm may be located in the abdomen, chest, lower back, or groin area. The pain may be severe or dull. Sudden, severe pain in the back or abdomen may mean the aneurysm is about to rupture. This is a life-threatening medical emergency. Abdominal aortic aneurysms may also cause a pulsing sensation, similar to a heartbeat, in the abdomen. The symptoms of an abdominal aortic aneurysm may look like other medical conditions or problems. Always see your doctor for a diagnosis. ...
Abstract Rupture of a renal artery aneurysm is a well-recognized phenomenon. The rupture usually occurs in late pregnancy. We report a case in whom this occurred in the first trime..
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Infra-inguinal venous aneurysms are uncommon and isolated popliteal vein aneurysms are particularly rare, with less than 100 cases reported in the literature. While the overall incidence is unknown, the male/female ratio is equal and the majority of cases occur in patients aged over 50 years. Most patients are asymptomatic, but the condition can present as an unusual source of fatal pulmonary embolism. Other symptomatic presentations include swelling in the popliteal fossa, local pain and the post-phlebitic syndrome. We present a case of an asymptomatic popliteal vein aneurysm detected on routine investigation of varicose veins.
Treatment. Surgical clipping or coiling techniques are majorly used in the treatment of brain aneurysms. It is essential to note that not all aneurysms are amenable to both forms of treatment. Consulting a neurologist is of extreme importance.. Clipping:. The surgeon reaches the aneurysm by cutting out a portion of the skull (craniotomy) and then locates the injured blood vessel and inserts a clip across the aneurysm. This obstructs blood from entering the aneurysm and then leaking out, or incases of an un-ruptured aneurysm, stunts its growth.. Endovascular Coiling or Coil Embolization:. This treatment approach involves inserting a catheter into the femoral artery (in the patients leg) and steering it through the vascular system, into the brain and finally into the aneurysm. Small platinum coils are lined through the catheter and placed into the aneurysm, jamming blood flow into the aneurysm and preventing a fissure. This minimally invasive procedure can be performed under general ...
An aortic aneurysm is a dilation of a segment of the aorta where the wall of the vessel becomes thin and weak. The most common site involves the abdominal aorta below the arteries to the kidneys. The main risk of an aortic aneurysm is rupture. If the aneurysm ruptures, the chance for survival is very low. If the aneurysm is repaired before rupture, the chance of survival is very good. In general, an abdominal aortic aneurysm should be repaired when it reaches a size of 5 centimeters in diameter. On average, an aortic aneurysm will increase in size 0.5 centimeters per year. A more rapid rate of enlargement might lead us to recommend repair before the aneurysm reaches 5 centimeters. There are currently two acceptable methods used to repair an abdominal aortic aneurysm. The most common method involves making an incision in the abdomen and directly exposing the aneurysm. The involved section of aorta is completely replaced with a prosthetic fabric tube. This operation is highly effective at reducing ...
The red arrow in both illustrations shows an aneurysm (weak spot in vascular wall) of the right front cerebral artery (A. carotis interna right, front view). For the safe treatment of this aneurysm, a tubular metal mesh (stent) was first inserted in the vascular wall and precisely placed above the mouth of the aneurysm. The almost invisible stent is marked with green dotted lines on the right part of the illustration. On both of its ends, it is marked with visible dark markers which the green arrows are pointing out. The purpose of a stent in the treatment of aneurysms is to narrow the mouth of the aneurysm with a mesh. Then, the platinum coils can be inserted safely in the aneurysm through the mesh. The platinum coils seal the aneuryms and can, in difficult cases, be better held in the aneurysm due to the underlying stent. The platinum coils are inserted in the aneurysm via a very fine, tiny plastic tube (so-called micro-catheter) through the mesh. In this case, the path of the micro-catheter ...
Background and Purpose: Although various studies have been performed, the mechanism leading to the rupture of cerebral aneurysms has not yet been elucidated. Accurate assessment of cerebral aneurysm rupture risk is important because current treatments carry a small but significant risk that can exceed the small natural risk of rupture. Various hemodynamic parameters have been proposed for estimating the risk of rupture of cerebral aneurysms, with limited success. We evaluated several hemodynamic parameters to predict rupture in a dataset of initially unruptured aneurysms in which some aneurysms ruptured during follow-up observation.. Methods: Geometry of the aneurysm and blood vessels was extracted from CTA images and analyzed using a mathematical formula for fluid flow under pulsatile blood flow conditions. Fifty side-wall internal carotid posterior communicating artery (ICA-pcom) aneurysms and fifty middle cerebral artery (MCA) bifurcation aneurysms of medium size were investigated for Energy ...
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. ...
Aneurysms form for a variety of interacting reasons. Multiple factors, including factors affecting a blood vessel wall and the blood through the vessel, contribute.. Atherosclerosis. A variety of different factors, including atherosclerosis, may contribute to weakening of a blood vessel wall. The repeated trauma of blood flowing through the vessel may contribute to degeneration [clarification needed] of the vessel wall. Hypertensive injury may compound this degeneration and accelerate the expansion of the aneurysm. As the aneurysm expands, the wall tension increases.[13][citation needed]. The pressure of blood within the expanding aneurysm may also injure the blood vessels supplying the artery itself, further weakening the vessel wall. Without treatment, these aneurysms will ultimately progress and rupture.[14]. Infection. A mycotic aneurysm is an aneurysm that results from an infectious process that involves the arterial wall.[15] A person with a mycotic aneurysm has a bacterial infection in ...
These results show that aneurysm treatment with CAP has a higher likelihood of producing arterial thrombosis and a lower likelihood of obliterating the aneurysm than aneurysm treatment with GDC. If CAP is allowed to overflow into the feeding or branch artery, thrombosis of these arteries generally occurs. If it remains in the aneurysm, there is some chance of the CAP dissolving and the aneurysm reforming. This may be prevented by mixing the CAP with less dimethyl sulfoxide (H. Ohmoto, personal communication, March 1997). The problems with GDC tend to be the opposite. There were no arterial thromboses, despite the coils protruding into the arterial lumen to some extent in some cases. The aneurysm, however, only obliterated and filled with solid tissue approximately 63% of the time.. Previous studies of CAP have produced more favorable results. In two experimental studies, 29 sidewall aneurysms were able to be completely obliterated in dogs with a risk of arterial occlusion of approximately 13% ...
Experimental saccular aneurysm models are necessary for testing novel surgical and endovascular treatment options and devices before they are introduced into clinical practice. Furthermore, experimental models are needed to elucidate the complex aneurysm biology leading to rupture of saccular aneurysms. Several different kinds of experimental models for saccular aneurysms have been established in different species. Many of them, however, require special skills, expensive equipment, or special environments, which limits their widespread use. A simple, robust, and inexpensive experimental model is needed as a standardized tool that can be used in a standardized manner in various institutions. The microsurgical rat abdominal aortic sidewall aneurysm model combines the possibility to study both novel endovascular treatment strategies and the molecular basis of aneurysm biology in a standardized and inexpensive manner. Standardized grafts by means of shape, size, and geometry are harvested from a ...
Duplex ultrasound of a 5.5 centimeter abdominal aortic aneurysm. An aneurysm is a dilation of a segment of an artery. The aorta, the main artery through the trunk, can develop an aneurysm that can grow to the point of rupture of the aortic wall. The most common site for an aneurysm of the aorta is in the abdomen, below the level of the arteries to the kidneys (renal arteries). An abdominal aortic aneurysm (AAA) may not be detected on routine examinations, but ultrasound imaging provides an accurate, safe and non-invasive means to measure the aortic size.. When ballooning of the aorta leads to rupture, the results are catastrophic. Many people with a ruptured AAA dont make it to the hospital, and those who do often die of complications. Ruptured aortic aneurysm is the 13th leading cause of death in the U.S. - a cause of 15,000 deaths each year. Detection and treatment make this preventable.. The most important risk factors for abdominal aortic aneurysm development include: age over 60 years, a ...
An aneurysm is a localized ballooning in an artery due to a weak portion of the vessel wall. A ruptured aneurysm can cause hemorrhaging that is severely debilitating or fatal. The two most medically significant aneuryms occur at the base of the brain (intracranial aneurysms) and in the artery coming out of the heart (aortic aneurysms) Wikipedia. The most common type of aortic aneurysm is abdominal aortic aneurysm (AAA). Wikipedia In 2014, a study found novel region on chromosome 7, near HDAC9, was associated with IA (rs10230207; P=4.14×10−8). See Stroke Journal 2014;45:3194-3199 In 2013, a meta-analysis confirmed 4 loci with robust association after random effects / sensitivity analysis. rs700651, rs9298506, rs10958409 and rs1333040. PMC3716358 As of 2010, at least 6 gene regions are known to be associated with increased risk for intracranial aneurysms in multiple ethnic groups, usually with multiple SNPs per region. [PMID 20364137], 23andMe blog ...
The physiopathology that leads to the development of aneurysms and their subsequent rupture has been partially explained by hemodynamic components in a multitude of studies; high wall shear stress seems to play the predominant role in high‐flow aneurysm, whereas high intra‐aneurysmal pressure and low‐flow stasis are the main factors in low‐flow aneurysms.25 It is hypothesized that the lower the flow, the higher the degenerative changes, and the higher the risk of rupture. Ruptured aneurysms (RAs) can have areas with higher than average and more concentrated wall shear stress with smaller impingement zones (where the inflow jet impacts against the aneurysm wall) when compared with unruptured ones.26, 27, 28 Furthermore, it is reported that hemodynamic variables are dependent on the morphology of the aneurysm and on its feeding vessels.25, 29, 30 Chronic hypertension seems to play a major role in aneurysm formation since it is more prevalent in patients with CAs compared to the general ...
Cerebral or brain aneurysm is a cerebra-vascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ballooning of the blood vessel.. Hypertension is known to be a silent killer (by killing the person silently without any symptoms). Its silence can be very dangerous sometimes which can be fatal or can leave a serious morbidity behind. Hypertension may cause many health problems but this is article is written with the idea to provide you information about cerebral aneurysm.. The blood vessels are made up of three layers .i.e. tunica intima, media & adventitia.. When the Tunica Intima the inner most layer gets damaged usually due to high blood pressure or due to trauma, the vessels elasticity is compromised & the blood gets turbulence leading to the ballooning of vessel known as False Aneurysm formation. The True Aneurysm is said when all three layers of vessel is involved.. These Aneurysm can occur anywhere is the human body such as Abdominal Aorta ...
BACKGROUND: Primary endovascular reconstruction with flow diversion represents a fundamental paradigm shift in the technique of endovascular aneurysm treatment. Unlike coil embolization, often there remains residual post-procedural filling within the aneurysm with flow diverters, the curative reconstruction presumably occurring over a period of weeks. Thus, conventional grading scales for post-procedural aneurysm occlusion and recanalization are inadequate. The aim of this paper is to propose a new angiographic grading scale that addresses this fundamentally new treatment option. METHOD: A five-point grading scale describes the location of residual flow within the aneurysm in the venous phase [grade 1: patent aneurysm with diffuse inflow; grade 2: residual filling of the aneurysm dome (saccular) or wall (fusiform); grade 3: only residual neck (saccular) or only intra-aneurysmal filling with former boundaries covered (fusiform); grade 4: complete occlusion]. FINDINGS: Grade 0 represents any aneurysm,
These experiments demonstrate that CCL5 and its receptor CCR5 are expressed in experimental aneurysm tissue and mural CD45+CD11b+ monocytes/macrophages, respectively. MKEY, a peptide inhibitor to CXCL4-CCL5 heterodimer formation, significantly inhibits migration of adoptively transferred donor leukocytes into recipient aneurysmal aortae. Furthermore, MKEY treatment initiated after aneurysm formation stabilizes aortic mural architecture and limits further aneurysm progression. The relevance of these findings to aneurysm disease was generally validated by the observation that MKEY suppressed aneurysms initiated by Ang II infusion in male ApoE−/− mice. Together, these experiments highlight the significance of CCL5 in experimental aneurysm pathogenesis and underscore its potential role in human AAA disease.. Chemokines CCL2 and CCL5 recruit inflammatory monocytes into target tissues, promoting macrophage-driven inflammatory conditions, such as vascular disease.28,37-42 Previous work suggests ...
OBJECTIVE: The usefulness of intraoperative microvascular Doppler (IMD) in preventing an incorrect placement of the clip during intracranial aneurysm surgery is described. Such incorrect placement of the clip may cause new bleeding or ischemic accident as a consequence of incomplete exclusion of the aneurysm or stenosis/occlusion of the parent and/or adjacent arteries. METHODS: One hundred thirty patients, harboring 136 aneurysms, were operated on using IMD. IMD study was performed on the aneurysm and adjacent arterial vessels before and after the clip placement. Mechanical arterial spasm was treated by topical sodium nitroprusside (SNP) and its efficacy verified by IMD. RESULTS: In 55 aneurysms (42.3%), IMD was helpful in understanding the microvascular anatomy before clip placement. Complete exclusion resulted in 129 aneurysms (94.9%). In 5 cases (3.7%) in which IMD revealed a persistent blood flow in the aneurysm, the clip was repositioned. In 2 cases (1.4%), we obtained false-negative ...
aneurysm - MedHelps aneurysm Center for Information, Symptoms, Resources, Treatments and Tools for aneurysm. Find aneurysm information, treatments for aneurysm and aneurysm symptoms.
A brain aneurysm is a uniquely devastating occurrence. An aneurysm happens when the artery walls in the brain thin and become unstable. They often form at branches or forks in the arteries where the structures are weaker. Without proper treatment, an aneurysm can lead to brain oxygen deprivation or death. When physicians want to treat a brain aneurysm, they have several different techniques at their disposal. One of the most effective methods is endovascular stenting. With an endovascular stent, doctors are able to create new pathways, avoiding the constriction of the blood going to the brain. Since a deficit of blood leading to the brain can cause such serious problems, doctors need to be aware of the consequences of their actions. Vikas Patel, an Interventional neuroradiologist from New Jersey, explains the procedure of the endovascular stent and how it can help a patient regain a full and healthy life. Brain Aneurysms A brain aneurysm is a ballooning or bulge in the brains blood vessels. It can
STIAS Fellow Malebogo Ngoepe during her seminar presentation on 2 November 2017. Ngoepe was presenting her project entitled Comparative computational study of thrombosis in cerebral and abdominal aortic aneurysms to STIAS fellows. She is from the Department of Mechanical Engineering at the University of Cape Town and is currently an Iso Lomso fellow.. Thrombosis - clotting which causes blockage of blood vessels - is the underlying condition for many cardiovascular diseases. Clotting is also closely linked to aneurysms, which are balloon-like expansions of blood vessel walls caused by weakening of the wall layers. Aneurysms are most commonly found on blood vessels of the brain and on the aorta, and are at risk of rupture with subsequent morbidity or mortality. Clots are observed in both ruptured and unruptured aneurysms. Clots that grow in aneurysms can either assist by sealing off the aneurysm, can exacerbate the situation by speeding up the time to rupture, or can break away and cause problems ...
The abdominal aorta runs down the center of the abdomen and is the main blood vessel that supplies blood to your body. An aneurysm is a bulge in the blood vessel which is caused by a weakness in the wall of the vessel. The analogy of a bubble in a garden hose would be appropriate in describing an aneurysm. As the bubble becomes larger, it becomes weaker and is more at risk for rupture. If you have an aneurysm, you will generally not have any symptoms. Because AAA do not produce clear symptoms, there is a high rate of sudden rupture with a significantly high death rate. Aortic aneurysms tend to be more common in people who are 65 or older. Each year 15,000 Americans die of a ruptured aortic aneurysm. When detected in time, an aneurysm can usually be repaired with surgery.. ...
A brain aneurysm is defined as any abnormal enlargement or dilatation of the lumen of a cereb ral artery. The cerebral aneurysms according to their morphology identified as Saccular and Fusiform,and the most common form is Saccular. In other words a sac is formed at a weak point in the artery with a stem which joins it to the rest of the artery. They usually develop in arterial junction areas. In a Fusiform brain aneurysm, the aneurysm takes a long narrow shape which includes all the wall of the artery on both sides. The size and the anatomical position of the aneurysm are the factors which usually define the clinical manifestation. Usually the rupture of the aneurysm manifests with subarachnoid hemorrhage (SAH) and more often with intraventricular hemorrhage or intraparenchymal ...
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 ...
Results of a study in the Oct. 26 issue of The Lancet show that researchers -- including a member of a University of Iowa Health Care team -- have determined that a new approach to treating ruptured aneurysms in the brain is superior to surgery.. Researchers at 44 medical centers in Australia, Europe and North America participated in the International Subarachnoid Aneurysm Trial (ISAT). The studys investigators ended the trial early because the early results definitively showed that the new technique achieved better outcomes for patients than traditional surgery.. A brain aneurysm is an abnormal bulging outward of the wall of an artery. The defect is most common among people between ages 35 and 60. Brain aneurysms can cause a stroke when they rupture and blood flows into the brain or the space closely surrounding the brain. The traditional treatment for a ruptured brain aneurysm was surgery. Neurosurgeons placed metal clips across the neck of the aneurysm in an effort to stop arterial blood ...
The endovascular treatment (EVT) has been performed in four cases, while the surgical treatment has been performed in three cases (two of trapping and one of clipping). In one patient, the infectious aneurysm has resolved spontaneously after antibiotic therapy. In all treatments performed, the patients have improved the neurologic symptoms and no residual aneurysms have been observed in the subsequent neuroradiology follow-up 12). Although surgery remains the main choice in the M4 aneurysms, because of the extremely distal location of them over the motor/somatosensory cortices, 13) Lv et al. 14) propose the use of the EVT in all types of the M4 aneurysms, especially after the surgery, when it is impossible to locate the small ruptured aneurysm. The main difficulty of the surgery is the precise surgical localization of the small M4 aneurysms 15). An inaccurate localization of these vascular lesions may result in larger craniotomies and unnecessary arachnoid and pial dissections with possible ...
Abdominal aortic aneurysm (AAA). EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T114361/Abdominal-aortic-aneurysm-AAA. Updated August 29, 2016. Accessed September 29, 2016. Screening for abdominal aortic aneurysm: recommendation statement. US Preventive Services Task Force website. Available at: http://www.uspreventiveservicestaskforce.org/uspstf05/aaascr/aaars.htm. Published June 2014. Accessed March 1, 2016.. Thoracic aortic aneurysm. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T908572/Thoracic-aortic-aneurysm. Updated May 26, 2016. Accessed September 29, 2016.. 7/21/2009 DynaMed Plus Systematic Literature Surveillance http://www.dynamed.com/topics/dmp~AN~T908572/Thoracic-aortic-aneurysm: Thompson SG, Ashton HA, Gao L, Scott RA, Multicentre Aneurysm Screening Study Group. Screening men for abdominal aortic aneurysm: 10 year mortality and cost effectiveness results from the randomised Multicentre Aneurysm Screening Study. BMJ. ...
The management of intracranial aneurysms in our center consists of a multidisciplinary evaluation by the neurosurgical and endovascular teams. All patients are evaluated after their presentation to our hospital, and treatment is performed when the patient is stable for the procedure, usually within a timeframe of less than 72 h after admission. With consensus, the treatment choice for tiny false intracranial rupture aneurysm at our institution is primarily endovascular approach.. Tiny false intracranial rupture aneurysm still is challenging to us all. Clinical manifestations and signs of this type of patients were milder than typical aneurysmal SAH. Additional salient features of these aneurysms include the usual occurrence on low flow arteries and the fact that they are frequently partially thrombosed upon discovery. These features underscore a potentially more benign natural history, and we tend to underestimate that these aneurysms are likely dissecting in nature. Nevertheless, re-rupture ...
Ascending thoracic aortic aneurysm (ATAA) is defined as a dilatation of the ascending aorta producing a cross sectional diameter more than 1.5 times its normal value; values between 1.1 and 1.5 are considered dilated or ectatic ascending aorta. Normal values have been established by different imaging techniques: echocardiography, computed tomography (CT) and magnetic resonance imaging (MRI)1-3 (table 1). Aneurysmal disease of the aorta is clinically important since, as the diameter of the aorta expands, linear wall stress increases, which in turn directly increases the risk of spontaneous aortic rupture-an event with extremely poor prognosis for the patient. Thoracic aortic aneurysms (TAAs) involve the ascending aorta most commonly (50%), followed by the descending aorta (40%), whereas arch aneurysms (10%) and thoraco-abdominal aneurysms (10%) occur less often. In 25% of patients with ATAA, concomitant abdominal aortic aneurysm is present. Anatomical distinction is important since the aetiology, ...
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 ...
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An aneurysm is classified as an abnormal enlargement of the arteries. If left untreated, an aneurysm can rupture and be fatal. Aneurysms oftentimes do not display symptoms, but when they do, they manifest in the form of blurred vision, drooping eyelids, dilated pupils, and weakness or numbness on one or both sides of the body. In order to look for an aneurysm, doctors will have the option to perform a variety of different tests. CT scans will often be the first performed to see if you have bleeding sections in your brain. Afterwards, you may need to have a cerebrospinal fluid test done, which is only performed depending on what can help narrow down the symptoms. Other tests can include having an MRI performed or a cerebral angiogram, which will help the doctor analyze the condition of your brain without the use of larger machinery.. At Metroview Vascular, we diagnose aneurysms and offer treatment options including open surgery, or stent-graft. These procedures are performed in the ...
An aneurysm is classified as an abnormal enlargement of the arteries. If left untreated, an aneurysm can rupture and be fatal. Aneurysms oftentimes do not display symptoms, but when they do, they manifest in the form of blurred vision, drooping eyelids, dilated pupils, and weakness or numbness on one or both sides of the body. In order to look for an aneurysm, doctors will have the option to perform a variety of different tests. CT scans will often be the first performed to see if you have bleeding sections in your brain. Afterwards, you may need to have a cerebrospinal fluid test done, which is only performed depending on what can help narrow down the symptoms. Other tests can include having an MRI performed or a cerebral angiogram, which will help the doctor analyze the condition of your brain without the use of larger machinery.. At Metroview Vascular, we diagnose aneurysms and offer treatment options including open surgery, or stent-graft. These procedures are performed in the ...
This work presents new Fluid-Structure Interaction (FSI) models in both 2D and 3D of the effect of using vascular stents as treatment of cerebral berry aneurysms. The stent is positioned inside the cerebral artery covering the neck of the aneurysm. The stent is expected to alter the blood flow into the aneurysm such that the blood coagulates due to low blood velocity, and rupture of the aneurysm is prevented. A 3D FSI model consisting of three domains (blood, arterial, and aneurismal) is used to investigate the effect of the aneurysm on blood flow. Aspects of stent design such as pore size and shape and strut size, shape, and position are modeled in 2D and 3D FSI models.. ...
Several predisposing factors have been identified as increasing the likelihood of aneurysm formation. These include older age, male gender, systolic and diastolic hypertension, history of current or past cigarette smoking, and first-degree relatives with a history of AAA. After age 50 in men and age 60 in females, the risk of an aneurysm increases with each subsequent decade. Males are four times as likely as females to have aneurysms, and having a first-degree relative with AAA increases risk four times. Smoking is the most important amendable risk factor, influencing both the likelihood of developing an aneurysm and rate of growth acceleration.. Although ideally individuals would have been identified and managed before developing complications like rupture, more than half of patients presenting with rAAA have previously undiagnosed aneurysms and as many as 30% of patients with rAAA are initially misdiagnosed. It is reported that 25% to 50% of patients with the rAAA present with the classic ...
WEDNESDAY, Aug. 19, 2015 (HealthDay News) -- A change in screening policies could help detect more abdominal aortic aneurysms in older men and save more lives, a new study claims.. Abdominal aortic aneurysm is a potentially deadly bulging of the aorta, the bodys largest blood vessel. The aorta extends from the heart down to the abdomen, supplying blood there and to the rest of the body. Major risk factors for an aortic aneurysm include smoking, high blood pressure, older age and being male.. Currently, men aged 65 and older are screened in the United States and Europe, but the study authors said that a growing number of deaths from abdominal aortic aneurysms occur among people aged 75 and older, and that the number is likely to shift to those over 85 in coming decades.. They also noted that most of the ruptured aortic aneurysms among people between the ages of 65 and 75 occur in male smokers.. Screening male smokers at age 65 and all men at age 75 could prevent nearly four times the number of ...
Since often these aneurysms are asymptomatic until they rupture, causing severe neurologic problems as well as possibly being fatal. Due to their weakened walls, brain aneurysms can acutely rupture, causing massive hemorrhage that may lead to death.The presence of associated high blood pressure from PKD increases the likelihood of aneurysm rupture, as does a prior family history of aneurysm rupture ...
Through the embryo stage of the being pregnant, the mobile differentiation begins to perform on the round construction. That is okay. It is yet one more frequent symptom of being pregnant. Poor weight loss program, lack of a certain nutrient, stress, melancholy. In: Gabbe SG, Niebyl JR, Simpson JL, et al, eds. You recognize what Im speaking about. This can be dangerous for the newborn. Fruits, greens, and complete grains are all a part of a pregnancy after tubes burned and cut diet. One quick word about the vitamin of pregnant cats. Any of the visceral vessels may turn out to be aneurysmal, but splenic artery aneurysms are most likely the commonest and the most apt to rupture through the puerperium. It isnt needed that the date predicted in the calendar is 100 accurate. However should you actually love your yet-to-be-born child, domesticate the quality of early signs of pregnancy while on pill and go in for a being pregnant diet menu. It appears incredible that such a violation would not be ...
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An aneurysm is a weak area in the wall of a blood vessel that causes the blood vessel to bulge or balloon out. There are many different types of aneurysms. A berry aneurysm can vary in size from a few millimeters to over a centimeter. Giant berry aneurysms can reach well over 2 centimeters.
Page 6-An aneurysm is a weak area in the wall of a blood vessel that causes the blood vessel to bulge or balloon out. There are many different types of aneurysms. A berry aneurysm can vary in size from a few millimeters to over a centimeter. Giant berry aneurysms can reach well over 2 centimeters.
The Division of Vascular Surgery provides:. • expert diagnostic evaluation of arterial and venous blood flow problems in the lower extremities;. • diagnosis and management of aneurysmal or occlusive disease of the thoracic aorta, abdominal aorta, peripheral aneurysms and aortic dissections;. • solutions for failed prior attempts at endovascular aneurysm exclusion or revisions of previously placed endografts;. • management of cerebrovascular disease;. • open and catheter-based (angioplasty and stenting) treatment for carotid disease; and • special expertise in the multi-modality management of venous insufficiency and thoracic outlet syndromes.. Learn more. ...
A 65-year-old man presented to our hospital with a chief complaint of hoarseness. Chest radiography and computed tomography detected a right subclavian artery aneurysm. The aneurysm had a maximum diameter of 85 mm, and was associated with a mural thrombus and displacement of the trachea to the left, which led to airway stenosis. In case ventilatory insufficiency developed during anesthesia induction, an extracorporeal membrane oxygenator was prepared, followed by administration of anesthesia. Careful administration of anesthesia allowed for anesthesia management without the extracorporeal membrane oxygenator. We approached the periphery and the proximal portion of the aneurysm through a right subclavicular incision and partial median sternotomy, respectively. After excision of the aneurysm, we performed EPTFE prosthesis implantation. The patient fs postoperative course was uneventful, which led to postoperative improvement of the airway stenosis. The combination of a right subclavicular incision ...
Pseudoaneurysms, or false aneurysms, are differentiated from true aneurysms by the layers of the artery involved. Pseudoaneurysms are the result of the rupture of all three layers of the artery: the tunica intima, media, and adventitia. The aneurysm is contained by an organized hematoma or neighboring connective tissue. With true aneurysms, the outermost layer, the adventitia, remains intact.. As a result of its secure location, injury to the basilar artery is rare.1 Only 10% of traumatic aneurysms in the brain occur in the posterior circulation. As was seen in this case, the majority of basilar artery aneurysms are associated with skull base fractures. In addition, the connective tissue surrounding the basilar artery is usually unable to contain the aneurysm, making it improbable that a patient would survive a traumatic aneurysm in the posterior circulation.2 Rapid treatment is imperative because of the high morbidity and mortality associated with basilar artery pseudoaneurysms. ...
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 ...
Poster 4 Salim Ben Yahia. Advantages: To report clinical findings and outcome of an atypical case of Coats disease in an adult patient.. Methods: A 48-year-old female underwent ocular examination including dilated fundus examination, fluorescein angiography, and optical coherence tomography.. Effectiveness / Safety: The patient presented with decreased vision in her left eye. Fundus examination revealed multiple macroaneurysms in the posterior pole superior to the macula associated with hard exudates. In addition to macroaneurysms, fluorescein angiography showed numerous microaneurysms and telangiectatic vessels with fluorescein leakage on macular area. Optical coherence tomography revealed macular edema and serous retinal detachment of the macula. The patient was treated by transpupillary thermotherapy, with spots applied to the macroaneurysms, leading to an improvement of visual acuity and partial resolution of macular edema and serous retinal detachment on optical coherence tomography three ...
Methods We retrospectively reviewed cases of ruptured distal vertebral artery or PICA dissecting aneurysms that underwent endovascular treatment. Diagnosis was based on the presence of subarachnoid hemorrhage on initial CT imaging and of a dissecting aneurysm on catheter angiography. Patients with vertebral artery aneurysms were selected for coil embolization of the diseased arterial segment based on the adequacy of flow to the basilar artery from the contralateral vertebral artery. Patients with PICA aneurysms were generally treated only if they were poor surgical candidates. Outcomes included symptomatic and asymptomatic procedure-related cerebral infarction, recurrent aneurysm rupture, angiographic aneurysm recurrence, and estimated modified Rankin Scale (mRS). ...
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 ...
The Marfan Syndrome, Loeys-Dietz Syndrome, Familial Thoracic Aortic Aneurysms & Dissections, and Related Disorders NGS Panel is designed to be a cost effective method for detecting mutations in genes causing aneurysms of the aorta and its major branches. Mutations in the genes on this panel cause numerous disorders with variable but often overlapping phenotypes that should be considered in the differential diagnosis of patients presenting with aneurysms. In many instances, different mutations within any gene have been reported to result in variable phenotypes. The genes constituting this panel have been carefully selected so that they are truly representative of those associated with aneurysms of the major vessels. The Marfan syndrome, Loeys-Dietz syndrome, Familial thoracic aortic aneurysms & dissections, and related disorders NGS panel consists of twenty-eight genes: ACTA2, BGN, CBS, COL3A1, COL5A1, COL5A2, FBN1, FBN2, FLNA, FOXE3, LOX, LTPB3, MAT2A, MFAP5, MED12, MYH11, MYLK, NOTCH1, PRKG1, ...
Coronary artery disease (CAD) is associated with abdominal aortic aneurysm in greater than 60% of cases. CAD continues to affect postoperative complication rates. Half of the deaths that follow resection of abdominal aortic aneurysms are due to perioperative myocardial infarctions. On evaluation for surgical resection of an abdominal aortic aneurysm, six patients were found to have significant CAD. Each underwent coronary artery bypass surgery prior to elective resection of the aneurysm. No deaths or myocardial infarctions occurred following any of the procedures. We restrict our indications for coronary angiography to the evaluation of patients with unstable angina (pain at rest or after minimal exertion) in whom noninvasive studies reveal evidence of CAD, and for patients who are unresponsive to medical management. ...

Aneurysm ComplicationsAneurysm Complications

... Rebleeding *Of the 18,000 persons who survive the initial rupture of an aneurysm annually, 3,000 either ... Early treatment, with either surgical or endovascular methods, of the aneurysm is the most effective means of preventing ... Stay current with the Brain Aneurysm Foundation. Sign up to receive our newsletter! ... middle cerebral aneurysm location, and duration of coma after SAH. Seizures generally occur within 18 months (if they do occur ...
more infohttps://www.bafound.org/about-brain-aneurysms/risk-factors/aneurysm-complications/

RecoveryRecovery

Click here to listen to a webinar on brain aneurysms and the recovery process in "The Care of Cerebral Aneurysms: What the ... Brain aneurysm survivors are a small population of people, but they are growing larger as medical technology continues to grow ... One of the most frequently asked questions by brain aneurysm survivors is "How long until I get better?" Unfortunately, there ... "Ive met many people through The Brain Aneurysm Foundation. Each one with their own unique story. Of survival, of appreciation ...
more infohttps://www.bafound.org/patient-resources/recovery/

Cerebral Aneurysms Information Page | National Institute of Neurological Disorders and StrokeCerebral Aneurysms Information Page | National Institute of Neurological Disorders and Stroke

These aneurysms can occur anywhere in the brain. Some small aneurysms may not show signs and are usually detected during ... These aneurysms can occur anywhere in the brain. Some small aneurysms may not show signs and are usually detected during ... These aneurysms can occur anywhere in the brain. Some small aneurysms may not show signs and are usually detected during ... These aneurysms can occur anywhere in the brain. Some small aneurysms may not show signs and are usually detected during ...
more infohttps://www.ninds.nih.gov/Disorders/All-Disorders/Cerebral-Aneurysms-Information-Page

Intracranial aneurysm - WikipediaIntracranial aneurysm - Wikipedia

Saccular aneurysms[edit]. Saccular aneurysms, also known as berry aneurysms, appear as a round outpouching and are the most ... See also: Aneurysm § Pathophysiology. Aneurysm means an outpouching of a blood vessel wall that is filled with blood. Aneurysms ... Cerebral aneurysms are classified both by size and shape. Small aneurysms have a diameter of less than 15 mm. Larger aneurysms ... Basilar artery aneurysms represent only 3%-5% of all intracranial aneurysms but are the most common aneurysms in the posterior ...
more infohttps://en.wikipedia.org/wiki/Cerebral_aneurysm

Aortic aneurysmAortic aneurysm

An aneurysm is a ballooning of part of the aorta caused by hardening of the lining of this artery due to a build up of fatty ... Aortic aneurysm. An operation to remove the diseased part of the aorta and replace it with a graft is an effective, relatively ... When the aneurysm reaches a certain size it can interfere with the circulation to various organs of the body. ... My uncle had surgery a few days ago for an aortic aneurysm. ... What is a dissecting aortic aneurysm?. Why am I getting ...
more infohttp://www.netdoctor.co.uk/ask-the-expert/heart-and-blood/a1078/aortic-aneurysm/

Mycotic (Infected) AneurysmMycotic (Infected) Aneurysm

Signs and symptoms of mycotic aneurysms may often be misleading during the early stages, resulting in misdiagnosis and delay in ... Mycotic (Infected) Aneurysm Caused by Streptococcus pneumoniae Khosrow Afsari, MD, Touro University College of Osteopathic ...
more infohttps://www.medscape.com/viewarticle/410168_0

Carotid aneurysm - PostsCarotid aneurysm - Posts

Find Carotid aneurysm information, treatments for Carotid aneurysm and Carotid aneurysm symptoms. ... MedHelps Carotid aneurysm Center for Information, Symptoms, Resources, Treatments and Tools for Carotid aneurysm. ... 1 year after dissecting carotid aneurysm- headaches/aneamia is it related? - Brain (Cerebral) Aneurysm Community ... They found a 4mm carotid aneurysm in my scan last week. I am to get a CT Angiogram Wed and ... ...
more infohttps://www.medhelp.org/tags/show/135050/Carotid-aneurysm?section=subjects

Cerebral Aneurysm SymptomsCerebral Aneurysm Symptoms

... a large aneurysm or one that is pressing against certain nerves or tissues may cause symptoms even though the aneurysm has not ... A brain aneurysm seldom causes any noticeable symptoms until it ruptures. In some cases, however, ... A brain aneurysm seldom causes any noticeable symptoms until it ruptures. In some cases, however, a large aneurysm or one that ... Once a cerebral aneurysm has burst, the consequences can be severe and life threatening. A ruptured cerebral aneurysm is also ...
more infohttps://www.news-medical.net/health/Cerebral-Aneurysm-Symptoms.aspx

Endovascular Aneurysm RepairEndovascular Aneurysm Repair

An aneurysm is an enlarged and weakened section of an artery. An aneurysm can be dangerous because as it increases in size, it ... The best method to repair each aneurysm depends upon several factors, including the location and shape of the aneurysm as well ... How is endovascular aneurysm repair performed?. Following is a general description of the procedure. Your vascular surgeon will ... Depending upon the type and location of the aneurysm, your surgeon may repair or replace your artery using tissues from your ...
more infohttps://www.hopkinsmedicine.org/heart_vascular_institute/conditions_treatments/treatments/endovascular_aneurysm_repair.html

Intracranial AneurysmIntracranial Aneurysm

... An aneurysm represents a weak spot in the wall of an artery which results in a "focal bulge" or widening ... Embolization of the aneurysm with placement of platinum GDC coils from inside the blood vessel through a catheter in the groin. ... Currently, there are two methods of treating intracranial aneurysms:. *Brain surgery with placement of a clip around the neck ... In the brain, these aneurysms have a 2-4% annual risk of rupture which can result in "subarachnoid hemorrhage", or bleeding in ...
more infohttp://www.emoryhealthcare.org/brain-health/intracranial-aneurysm.html

Revolutionizing Aneurysm TreatmentRevolutionizing Aneurysm Treatment

... Background. According to the World Health Organization (WHO), stroke (a disruption of blood ... The aneurysm then slowly shrinks, completely disappearing within a few months. The technology is a vast improvement over ... In Singapore, doctors see over 200 patients a year with ruptured or burst aneurysms, and in the United States alone nearly ... The first innovation in this line is the X*Calibur Aneurysm Occlusion Device (X*Calibur AOD), an innovative, minimally invasive ...
more infohttp://www.wipo.int/ipadvantage/en/details.jsp?id=2577

Aneurysm | CirculationAneurysm | Circulation

A Population-Based Study of Abdominal Aortic Aneurysm Treatment in Finland 2000 to 2014 Matti T. Laine, Sani J. Laukontaus, ... Aortic Wall Inflammation Predicts Abdominal Aortic Aneurysm Expansion, Rupture, and Need for Surgical Repair The MA3RS Study ... Outcome of the Swedish Nationwide Abdominal Aortic Aneurysm Screening ProgramClinical Perspective Anders Wanhainen, Rebecka ... Female Mice With an XY Sex Chromosome Complement Develop Severe Angiotensin II-Induced Abdominal Aortic AneurysmsClinical ...
more infohttp://circ.ahajournals.org/taxonomy/term/1733

What is a pseudo aneurysm?What is a pseudo aneurysm?

Answers.com® WikiAnswers® Categories Health Conditions and Diseases Aneurysm What is a pseudo aneurysm? ... What are aneurysms? "An aneurysm is a localized , blood-filled dilation of a blood vessel caused by disease or weakening of the ... How do you treat pseudo aneurysms? A pseudoaneurysm or a false aneurysm is a hematoma that forms outside the wall of an artery ... Where can you get an aneurysm? you can an aneurysm by a diseases ... What is a pseudo aneurysm? What is a pseudo aneurysm?. SAVE. ...
more infohttp://www.answers.com/Q/What_is_a_pseudo_aneurysm

Aneurysm... inoperable? - Neurology - MedHelpAneurysm... inoperable? - Neurology - MedHelp

I was just diagnosed with 2 aneurysms, the small one (2mm) is located in the right side of my brain, not sure of exact location ... Aneurysm... inoperable? JenVT Hi, I am a 33 year old female in good health, I was just diagnosed with 2 aneurysms, the small ... Told her also that my mother has had aneurysms ( which were clipped), and she just said I was too young to have aneurysms, ... It then looked at certain criteria such as patient age, aneurysm size, and aneurysm location. What the study showed was that in ...
more infohttps://www.medhelp.org/posts/Neurology/Aneurysm-inoperable/show/346523

Nanorobot for Brain Aneurysm | ZDNetNanorobot for Brain Aneurysm | ZDNet

Nanorobot for Brain Aneurysm. The idea of nanorobots floating throughout our arteries to fight diseases and deliver drugs is ... Nanorobots used to detect brain aneurysm: (a) the nanorobots enter the vessel and flow with the bloodstream (b) the nanorobots ... So how does a nanorobot detect a cerebral aneurysm? First the research team, which includes the Center for Automation in ... the nanobiosensor is activated as the nanorobots move closer to the aneurysm, emitting RF signals sent to the cell phone (h) as ...
more infohttps://www.zdnet.com/article/nanorobot-for-brain-aneurysm/

Extracranial carotid artery aneurysmExtracranial carotid artery aneurysm

True aneurysms involving all layers of the carotid arterial wall and false aneurysms both occur. Overall, extracranial carotid ... Extracranial carotid artery aneurysms are uncommon and occur in a broad range of patients due to many etiologies. ... In most series, open surgical repair is more often selected for true aneurysms, infected aneurysms, and larger aneurysms ... Extracranial carotid artery aneurysms. Surgery 1983; 93:319.. *McCollum CH, Wheeler WG, Noon GP, DeBakey ME. Aneurysms of the ...
more infohttp://www.uptodate.com/contents/extracranial-carotid-artery-aneurysm

Abdominal Aortic Aneurysm HistoryAbdominal Aortic Aneurysm History

... central incision and removal of thrombotic material from the aneurysm. The surgical management of aneurysms however dates back ... Greek surgeon Antyllus tried to treat the aneurysm with proximal and distal ligature, ... Earliest records of abdominal aorta aneurysm in history come from Ancient Rome in the 2nd century AD. ... Records of knowledge of aneurysms. The word aneurysm is derived from the Greek aneurysma which means "widening". The earliest ...
more infohttps://www.news-medical.net/health/Abdominal-Aortic-Aneurysm-History.aspx

Aneurysm: Causes, symptoms, and treatmentsAneurysm: Causes, symptoms, and treatments

An aneurysm is the bulging of artery or cardiac chamber walls. There may be no symptoms, but, if the walls rupture, it can be ... Peripheral aneurysms are less likely to rupture than aortic aneurysms.. Treatment. Not all cases of unruptured aneurysm need ... Peripheral aneurysm. An aneurysm can also occur in a peripheral artery. Types of peripheral aneurysm include:. *Popliteal ... Fast facts on aneurysms. *Aneurysms affect a variety of arteries. The most significant aneurysms affect the arteries supplying ...
more infohttps://www.medicalnewstoday.com/articles/156993.php

AANS | Cerebral AneurysmAANS | Cerebral Aneurysm

What is a cerebral aneurysm? What treatments are available? Learn more about this condition in this neurosurgeon-edited guide. ... such as complex aneurysms, including large and giant aneurysms, wide-neck aneurysms, fusiform aneurysms and recanalized ... for complex aneurysms such as wide-necked aneurysms with lower dome-to-neck ratios, large and giant aneurysms. Stent - or ... What is an Aneurysm?. A cerebral or intracranial aneurysm is an abnormal focal dilation of an artery in the brain that results ...
more infohttp://www.aans.org/Patients/Neurosurgical-Conditions-and-Treatments/Cerebral-Aneurysm

Thoracic Aortic AneurysmThoracic Aortic Aneurysm

... The aorta is the artery that carries oxygen-rich blood away from the heart and on to other arteries ... A thoracic aortic aneurysm occurs when a "balloon" forms in a weakened area of the aorta wall within the chest cavity. The ... Thoracic aneurysm may occur in three parts of the thoracic aorta: the ascending aorta, the descending aorta or the aortic arch ... A minor thoracic aortic aneurysm may have little effect on an individual, but can also be life-threatening and fatal if it ...
more infohttps://www.emoryhealthcare.org/heart-vascular/thoracic-aortic-aneurysm.html

Intracranial Aneurysm CoilIntracranial Aneurysm Coil

Subsequently, the aneurysm coil fiber was then used to wrap and tie down to the external adventitial area of the common femoral ... Subsequently, the aneurysm coil fiber was then used to wrap and tie down to the external adventitial area of the common femoral ... DX: Intracranial aneurysm coil extending into the right common femoral artery. Procedure: Right common femoral cut down with ... DX: Intracranial aneurysm coil extending into the right common femoral artery. Procedure: Right common femoral cut down with ...
more infohttps://www.aapc.com/memberarea/forums/17725-intracranial-aneurysm-coil.html

12mm brain aneurysm 2003 - opinions12mm brain aneurysm 2003 - opinions

Brain Aneurysm Posted by Peter Smith on 9 Aug 2014 at 8:22 pm I had an uncle who died of an aneurysm, I also had a bleed and ... Aneurysm Hereditary Posted by Angela B on 10 Jan 2014 at 2:06 pm I was diagnosed with a large 16mm x 8mm aneurysm on my basilar ... 12mm brain aneurysm 2003. Posted by Margaret Bunyan on 9 Nov 2010 at 4:56 am I had a brain aneurysm coiled in 2003 by a ... Aneurysm Posted by Anushika on 22 Dec 2013 at 2:04 pm Im writing to let you know of my personal experience with aneurysms. My ...
more infohttps://www.medicalnewstoday.com/opinions/55510

Aneurysm - WikipediaAneurysm - Wikipedia

The heart, including coronary artery aneurysms, ventricular aneurysms, aneurysm of sinus of Valsalva, and aneurysms following ... Most aneurysms develop after the age of 40.[citation needed]. Pediatric aneurysmsEdit. Pediatric aneurysms have different ... Aneurysms may be classified by type, morphology, or location.. True and false aneurysmsEdit. A true aneurysm is one that ... Without treatment, these aneurysms will ultimately progress and rupture.[14]. Infection. A mycotic aneurysm is an aneurysm that ...
more infohttps://en.m.wikipedia.org/wiki/Aneurysm

Aneurysm | LHSCAneurysm | LHSC

ANEURYSM An aneurysm is a bulge in the wall of a blood vessel. Fatty deposits can build up in the vessel wall and damage the ... This can lead to the formation of an aneurysm. ... ANEURYSM. An aneurysm is a bulge in the wall of a blood vessel ... Occasionally, aneurysms develop as a result of infection or trauma.. Aneurysms can develop in any artery of the body. Aneurysms ... Thoracic aortic aneurysms are higher up in the chest. Aneurysm can also affect the blood vessels of the brain (called cerebral ...
more infohttps://www.lhsc.on.ca/critical-care-trauma-centre/aneurysm

Brain AneurysmBrain Aneurysm

... also called cerebral aneurysm). Covers possible causes, including hardening of the arteries, hypertension, and smoking. Lists ... Brain Aneurysm. Topic Overview. What is a brain aneurysm?. A brain (cerebral) aneurysm is a bulging, weak area in the wall of ... What causes a brain aneurysm?. A person may inherit the tendency to form aneurysms, or aneurysms may develop because of ... Some aneurysms bulge in such a way that the aneurysm has to be cut out and the ends of the blood vessel stitched together, but ...
more infohttps://www.rexhealth.com/rh/health-library/document-viewer/?id=aa31978spec
  • Microaneurysms, also known as Charcot-Bouchard aneurysms , typically occur in small blood vessels (less than 300 micrometre diameter), most often the lenticulostriate vessels of the basal ganglia , and are associated with chronic hypertension . (wikipedia.org)
  • Rebleeding, hydrocephalus (the excessive accumulation of cerebrospinal fluid ), vasospasm (spasm, or narrowing, of the blood vessels), or multiple aneurysms may also occur. (wikipedia.org)
  • I guess if they were to operate I would lose my eyesight in left eye because the aneurysm is surrounded by all the optic blood vessels/nerves, however if I wait till it bursts I still will lose my eyesight. (medhelp.org)
  • For the proposed model, the nanorobots were able to recognize chemical gradient changes in the bloodstream, retrieving information about the position inside the vessel as intracranial aneurysm detection. (zdnet.com)
  • What this study did was it looked at patients with aneurysms and divided them into 2 groups, those with SAH and those without SAH. (medhelp.org)
  • See how new research at the Krembil Neuroscience Centre is improving the way we treat patients with aneurysms. (uhn.ca)
  • The technology is a vast improvement over current methods, comparatively cheaper in terms of overall hospital charges, minimally invasive, and arteries that have been treated remain clear with no incidence of aneurysm re-growth. (wipo.int)
  • Aneurysms affect a variety of arteries. (medicalnewstoday.com)
  • Visceral aneurysm: This is a bulge of the arteries that supply blood to the bowel or kidneys. (medicalnewstoday.com)
  • They found a 4mm carotid aneurysm in my scan last week. (medhelp.org)
  • 1 year after dissecting carotid aneurysm- headaches/aneamia is it related? (medhelp.org)
  • An aneurysm represents a weak spot in the wall of an artery which results in a "focal bulge" or widening of the artery. (emoryhealthcare.org)
  • The first innovation in this line is the X*Calibur Aneurysm Occlusion Device (X*Calibur AOD), an innovative, minimally invasive cranial stent which can clear up aneurysms (a localized, blood filled bulge of a blood vessel caused by disease or weakening of the vessel wall) within a few months. (wipo.int)
  • An aneurysm refers to a weakening of an artery wall that creates a bulge, or distention, of the artery. (medicalnewstoday.com)
  • An aneurysm is a localized, blood-filled balloon-like bulge in the wall of a blood vessel . (wikipedia.org)
  • An aneurysm is a bulge in the wall of a blood vessel. (lhsc.on.ca)
  • An aneurysm occurs when an artery's wall weakens and causes an abnormally large bulge. (healthline.com)
  • While the "classic" terminology relates the lesion to cavitary tuberculosis, the term is now used for the anatomic aneurysm associated with other destructive lung lesions. (wikipedia.org)
  • Smoking and high blood pressure are major risk factors for the development of an aneurysm. (medicalnewstoday.com)
  • Once a cerebral aneurysm has burst, the consequences can be severe and life threatening. (news-medical.net)
  • In Singapore, doctors see over 200 patients a year with ruptured or burst aneurysms, and in the United States alone nearly twelve million people suffer from them. (wipo.int)
  • The best method to repair each aneurysm depends upon several factors, including the location and shape of the aneurysm as well as the overall health of the patient. (hopkinsmedicine.org)
  • An aneurysm is a localized , blood-filled dilation of a blood vessel caused by disease or weakening of the vessel wall. (answers.com)
  • Embolization of the aneurysm with placement of platinum GDC coils from inside the blood vessel through a catheter in the groin. (emoryhealthcare.org)
  • Aneurysms are a result of a weakened blood vessel wall, and can be a result of a hereditary condition or an acquired disease. (wikipedia.org)
  • Some aneurysms are best repaired through an incision that allows the surgeon to visualize the bood vessel and replace the damaged area with a piece of "graft" material. (lhsc.on.ca)
  • Other aneurysms can be repaired from inside by inserting a "new liner" or stent into the vessel. (lhsc.on.ca)
  • In your particular case, a review of pertinent imaging (i.e. conventional angiogram, CT angiogram, and/or MR angiogram) would be especially Also, type of helpful to me in assessing the reason your aneurysm has been deemed inoperable. (medhelp.org)
  • He was 39 and had an inoperable aneurysm. (medicalnewstoday.com)