Search Results
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Ibrahim Timothy - - 2009
Posteriorly projecting carotid bifurcation aneurysms are rare. Proximal anterior cerebral artery aneurysms are even more uncommon. Distinguishing between true posteriorly projecting carotid bifurcation aneurysms and carotid A1 aneurysms can be difficult but it is important because small posteriorly projecting carotid bifurcation aneurysms may need a contralateral approach for adequate exposure. ...
Willinsky R A - - 2009
BACKGROUND AND PURPOSE: Endovascular embolization is a well-established treatment of ruptured intracranial aneurysms, but concern about its long-term stability and its ability to prevent rehemorrhage are still present. We evaluated the long-term clinical and angiographic follow-up of patients with ruptured cerebral aneurysms treated with coiling, focusing on rehemorrhage and changes ...
Otani Naoki - - 2009
Optimal surgical management of ruptured aneurysms of the distal anterior cerebral artery continues to provide unique technical challenges. This study presents 20 consecutively managed such patients, with special attention given to the clinical and radiological characteristics, as well as the surgical outcomes. Intracerebral hematoma was seen in 11 of the ...
Miyazawa Takahito - - 2009
BACKGROUND: Phosphenes, flashes of light, are a visual phenomenon experienced by patients with ophthalmological disease and normal individuals. CASE REPORT: We report here a 68-year-old woman in whom phosphenes appeared in the left visual field due to compression of the right optic nerve by an aneurysm of the anterior communicating ...
Nussbaum Eric S - - 2009
Intracranial arterial fenestrations are uncommon developmental anomalies that may alter local hemodynamic stress patterns and may be associated with intracranial aneurysms. A 75-year-old woman presented with a mild subarachnoid hemorrhage. Cerebral angiography demonstrated a 5 mm aneurysm arising from the middle cerebral artery (MCA) associated with a dramatic fenestration of ...
Grotemeyer Dirk - - 2009
PURPOSE: Visceral artery aneurysms (VAA) are rare forms of vascular pathology, with an incidence of 0.1% to 0.2% in routine autopsies. They frequently present as a life-threatening, often fatal, emergency, if associated with rupture and intra- or retroperitoneal bleeding. The clinical symptoms, natural history, and mortality of VAAs vary depending ...
Lee Ho-Joon - - 2009
The mechanism of aneurysm growth after isolation from the circulation is not well known. We report a case of a woman who presented with mass effects of a large cavernous internal carotid artery (ICA) aneurysm. The parent vessel harboring the aneurysm was sacrificed but the aneurysm continued to enlarge with ...
Roebuck Jeremy C - - 2009
We report a case of idiopathic rupture of an internal carotid artery (ICA) aneurysm in an infant, a finding that we believe has not been previously reported in the literature. The more common causes of isolated injury to the ICA are deep neck space infections and penetrating intraoral trauma. Pseudoaneurysms ...
Park Sun Jin - - 2009
The purpose of this article is to report a case of ruptured celiac trunk aneurysm treated with glue embolization. A 39-year-old man presented with abdominal pain. Abdominal computed tomography (CT) depicted the presence of hemoperitoneum, and CT angiography revealed an aneurysm in the celiac trunk. The endovascular access into the ...
Trager Asher L AL Department of Biomedical Engineering, University of Miami, 1251 Memorial Drive, Coral Gables, FL 33146, USA. - - 2009
The rupture of a cerebral aneurysm can result in a hemorrhagic stroke. A flow diverter, which is a porous tubular mesh, can be placed across the neck of a cerebral aneurysm to induce the cessation of flow and initiate the formation of an intra-aneurysmal thrombus. By finding a correlation between ...
Roche-Nagle Graham - - 2009
Carotid artery aneurysms are an uncommon but important problem. Untreated, these aneurysms lead to neurologic symptoms from embolization. Although open surgery has been the primary mode of treatment, these aneurysms are being treated more commonly with endovascular approaches. This article describes a case of aneurysms of the carotid artery and ...
van Hooft I M - - 2009
BACKGROUND: A persistent sciatic artery (PSA) is a rare vascular anomaly with an estimated incidence of 0.03-0.06%. During early embryonic development, the sciatic artery usually disappears when the superficial femoral artery has developed properly. This study aimed to assess the clinical presentation and outcome of a PSA. METHOD: A systematic ...
Fiehler Jens - - 2009
This brief review highlights some factors affecting the short-term and long-term outcomes after endovascular treatment (EVT) of patients with intracranial aneurysms. The principal procedural risks associated with EVT are symptomatic thromboembolic events affecting 2.4-5.2% of treatments, and aneurysm perforation which occurs in 0.5-2.4% of the patients with unruptured aneurysms and ...
Berenstein Alejandro - - 2009
OBJECTIVE: To assess the feasibility and analyze angiographic and histological results of experimental aneurysms treated with an embolic-containing device (ECD) and to test a liquid embolic agent (LEA), N-butyl cyanoacrylate. METHODS: Four experimental large bifurcation aneurysms and 1 large sidewall aneurysm were created in 5 dogs. These venous pouch aneurysms ...
Gologorsky Yakov - - 2009
OBJECTIVE: Pulsatile tinnitus is a relatively common, potentially incapacitating condition that is often vascular in origin. We present a case of disabling pulsatile tinnitus caused by a transverse-sigmoid sinus aneurysm that was surgically treated with self-tying U-clips (Medtronic, Inc., Memphis, TN). We also review the literature and discuss other described ...
Hassan F - - 2009
Spontaneous thrombosis of an intracranial aneurysm is a rare event. It is predominantly observed with aneurysms that are large and have relatively narrow necks. We report here a case of a 48-year-old woman presenting with subarachnoid hemorrhage (SAH) due to rupture of a 2-mm aneurysm of the anterior cerebral artery ...
Ionita Ciprian N CN Department of Neurosurgery, School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, USA. - - 2009
Development of hemodynamic modifying devices to treat intracranial aneurysms is an active area of research. The asymmetrical vascular stent (AVS), a stent containing a low-porosity patch, is such device. We evaluate AVS efficacy in an in vivo intracranial aneurysm model. We created 24 elastase rabbit model aneurysms: 13 treated with ...
Castro M A MA Department of Computational and Data Sciences, College of Sciences, George Mason University, Fairfax, Va., - - 2009
The anterior communicating artery (AcomA) is a predilect location of aneurysms which typically carry higher rupture risks than other locations in the anterior circulation. The purpose of this study was to characterize the different flow types present in AcomA aneurysms and to investigate possible associations with rupture. Patient-specific computational models ...
Sasaki Tatsuya - - 2009
A 79-year-old woman who had a previous history of sudden onset of pain and coldness of her right leg was referred to our hospital. There were no palpable right popliteal and pedal pulses with the ankle-brachial pressure index being 0.63. Computed tomography showed a 2.6-cm diameter right buttock mass which ...
Haug Tonje - - 2009
The neuropsychological outcome and Health Related Quality of Life (HRQOL) after SAH have been largely believed to be unrelated to the location of the ruptured aneurysm. This notion needs verification due to the contemporary availability of more sensitive neuropsychological test batteries and more recent clinical observations of deviant behaviour after ...
Sforza Daniel M - - 2009
The initiation and progression of cerebral aneurysms are degenerative processes of the arterial wall driven by a complex interaction of biological and hemodynamic factors. Endothelial cells on the artery wall respond physiologically to blood-flow patterns. In normal conditions, these responses are associated with nonpathological tissue remodeling and adaptation. The combination ...
Seo Dae-Hee - - 2009
Anterior communicating artery (Acom) complex and anterior cerebral artery (ACA) are the frequent sites of arterial anomalies. Aneurysms associated with triplicate ACA are rare. Blood blister-like aneurysm (BBA) of the Acom is also very rare. This report presents these two rare types of aneurysms in a 63-year old man who ...
Nussbaum Eric S - - 2009
OBJECT: The authors report the management and outcomes of 55 patients with 60 intracranial aneurysms arising distal to the major branch points of the circle of Willis and vertebrobasilar system. METHODS: Between July 1997 and December 2006, the authors' neurovascular service treated 2021 intracranial aneurysms in 1850 patients. The database ...
Tabatabai Seyed Ali F - - 2009
Traditionally, surgery of the anterior circulation aneurysms of the cerebral vasculature is dictated by the site of the lesion, excluding such midline lesions as anterior communication artery aneurysms. Few reports address the issue of using a single craniotomy to obliterate multiple aneurysms located in both hemispheres. A 51 year-old Caucasian ...
Lykoudis Efstathios G - - 2009
Microvascular anastomotic aneurysms are an uncommon complication in reconstructive surgery, which can lead to free flap failure or even threaten the life of the patient. The literature referring to microvascular anastomotic aneurysms was reviewed in order to highlight their clinical presentation, diagnostic work-up, and therapeutic management. Also, a case of ...
Kirk Jeffrey S - - 2009
Ovarian artery aneurysms have rarely been reported in the literature, with almost all being unilateral and occurring in the peripartum period. We herein describe a unique case of a postmenopausal patient with a ruptured ovarian aneurysm and an intact contralateral aneurysm that were both successfully treated by endovascular techniques.
Ravn H - - 2009
PAA is a predominantly male disease, more than 90% of affected patients are men. Risk factors for amputation are poor run-off, use of a synthetic graft, emergency treatment and high age. The frequency of amputation decreased over time in Sweden, which was associated with increased use of preoperative thrombolysis and ...
Takeuchi Satoru - - 2009
Aneurysms of lenticulostriate artery (LSA) have rarely been reported. We present an extremely rare case of bilateral aneurysm of LSA, which spontaneously disappeared. A 59-year-old man presented to us with a decreased level of consciousness. Twice repeated blood culture was negative. Computed tomography (CT) showed bilateral basal ganglia hemorrhage with ...
Prestigiacomo Charles J - - 2009
OBJECT:The goal of this study was to establish a biomathematical model to accurately predict the probability of aneurysm rupture. Biomathematical models incorporate various physical and dynamic phenomena that provide insight into why certain aneurysms grow or rupture. Prior studies have demonstrated that regression models may determine which parameters of an ...
Suzuki Hiroyuki - - 2009
Coronary aneurysm is rare in SLE and confirmation of etiology is usually made at postmortem examination. We encountered a giant aneurysm with multiple stenotic segments of the coronary arteries in a patient with SLE who had previous history of AAA/TAA. Resection of the aneurysm and coronary artery bypass graft were ...
Kim Dal-Soo - - 2009
The authors report an extremely rare case of a ruptured saccular aneurysm of the right posterior inferior cerebellar artery (PICA) associated with hypoplasia of bilateral internal carotid arteries (ICAs) and the right vertebral artery (VA). The aneurysm was successfully treated by clipping of the aneurysm itself using a lateral suboccipital ...
Wang Chia-Sheng - - 2009
With improved angiographic techniques and magnetic resonance angiography available today, an increasing number of incidental aneurysms are being detected. Occurrence of an intracranial aneurysm together with a pituitary adenoma presents tremendous risk to the patient, particularly when the aneurysm lies near the operative field.A 61-year-old woman presented with a progressive ...
Ionita Ciprian N - - 2009
Image-guided endovascular intervention (EIGI), using new flow modifying endovascular devices for intracranial aneurysm treatment is an active area of stroke research. The new polyurethane-asymmetric vascular stent (P-AVS), a vascular stent partially covered with a polyurethane-based patch, is used to cover the aneurysm neck, thus occluding flow into the aneurysm. This ...
Gopalakrishnan C V - - 2009
Aneurysms arising from anterior inferior cerebellar artery-posterior inferior cerebellar artery (AICA-PICA) variant are exceedingly rare. We report two cases of distal AICA-PICA variant aneurysms and discuss their surgical management with emphasis on the higher risk for perforator artery injury. The etiopathogenesis of these rare aneurysms at non-branching sites remains elusive.
Furtado Sunil V - - 2009
An elderly male was evaluated for subarachnoid hemorrhage and found to have a persistent primitive hypoglossal artery with its associated abnormal posterior fossa circulation and a lower basilar artery aneurysm. Angiography findings are described and are corroborated with computed tomography and magnetic resonance imaging. Its surgical and clinical relevance are ...
Oertel Joachim M K - - 2009
OBSTRUCTIVE: hydrocephalus due to giant basilar artery (BA) aneurysm is a rare finding, and endoscopic treatment has not been reported. Here the authors present their experience with endoscopic third ventriculostomy (ETV) in obstructive hydrocephalus due to giant BA aneurysm. Between December 2000 and March 2007, 3 patients (2 men and ...
Kato Takayoshi - - 2009
We report a case of a ruptured isolated true external iliac artery aneurysm (EIAA). A 78-year-old woman was admitted to our institution in a shock state after the sudden onset of severe pain in the right hypogastric region. A pulsating mass was found in her right lower abdomen. Computed tomography ...
Hirokawa Takahisa - - 2009
An aneurysm of the middle-colic artery, associated with segmental arterial mediolysis (SAM), is a rare condition. This report describes a case of a middle-colic artery aneurysm that was associated with SAM. A 57-year-old man was admitted to our hospital because of severe abdominal pain. A rupture of a middle-colic artery ...
Chao Lai-Wan - - 2009
BACKGROUND: Spontaneous rupture of an ovarian artery aneurysm is an extremely rare and usually life-threatening event, most often associated with pregnancy. CASE: A 46-year-old woman presented to the emergency room with left lower abdominal pain and cold sweating. Contrast-enhanced dynamic computed tomography (CT) showed a left retroperitoneal hematoma with extravasation ...
Ford M D - - 2009
Human studies of haemodynamic factors in the pathogenesis of cerebral aneurysms require knowledge of the pre-aneurysmal vasculature. This paper presents an objective and automated technique to digitally remove an aneurysm and reconstruct the parent artery, based on lumen geometries segmented from angiographic images. Relying on robust computational geometry concepts, notably ...
Carter Bob S - - 2009
Cerebral aneurysms are abnormal widening or ballooning of a localized segment of an intracranial blood vessel. Surgical clipping is an important treatment for aneurysms which attempts to exclude blood from flowing into the aneurysmal segment of the vessel while preserving blood flow in a normal fashion. Improper clip placement may ...
Aljabri Badr - - 2009
Celiac artery aneurysms are rare and usually asymptomatic. The management of these aneurysms is challenging, especially when they are large and involve the confluence of the trifurcation. We present here a case of a large celiac artery aneurysm involving its branches in a young woman. Preoperative investigations, intraoperative findings, and ...
Ritelli Marco - - 2009
Arterial tortuosity syndrome (ATS) (OMIM #208050) is a rare autosomal recessive connective tissue disorder characterized by tortuosity and elongation of the large and medium-sized arteries, propensity to aneurysms formation, vascular dissection, and pulmonary arteries stenosis. ATS is caused by mutations in SLC2A10 gene, encoding for the facilitative glucose transporter 10 ...
Molony David S - - 2009
Abdominal aortic aneurysms (AAA) are local dilatations of the infrarenal aorta. If left untreated they may rupture and lead to death. One form of treatment is the minimally invasive insertion of a stent-graft into the aneurysm. Despite this effective treatment aneurysms may occasionally continue to expand and this may eventually ...
Zoffoli Giampaolo - - 2009
Rupture of the free wall of the left ventricle (LV) is a catastrophic complication occurring in 4% of patients after myocardial infarction (MI) and in 23% of those who die of MI. Rarely the rupture is contained by an adherent pericardium creating a pseudo-aneurysm. This clinical finding calls for emergency ...
Avolio Alberto A Australia School of Advanced Medicine, Macquarie University, Sydney, Australia. - - 2009
Surgical decisions on treatment of cerebral aneurysms are based predominantly on aneurysm size. This study has assessed the influence of parent vessel geometry on intra-aneurysmal flow patterns and mass flow rate using computational fluid dynamics and finite element modeling of straight and curved vessels feeding saccular aneurysms of varying size ...
Spiegel Martin M Friedrich-Alexander University Erlangen-Nuremberg (FAU), Department of Computer Science, Germany. - - 2009
Computational fluid dynamic (CFD) based on patient-specific medical imaging data has found widespread use for visualizing and quantifying hemodynamics in cerebrovascular disease such as cerebral aneurysms or stenotic vessels. This paper focuses on optimizing mesh parameters for CFD simulation of cerebral aneurysms. Valid blood flow simulations strongly depend on the ...
Sarikaya B B Gaziosmanpasa University Medical Faculty, Egitim Alayi Yani, Tokat, Turkey - - - 2008
We describe a patient with a small ruptured azygos anterior cerebral artery aneurysm located at a non-bifurcation distal site on the artery treated successfully with simple coiling.
Meguro T T Department of Neurological Surgery, Hiroshima City Hospital; Hiroshima, Japan - - - 2008
Cases of aneurysm associated with the occlusion of both common carotid arteries are very rare.We present a case of ruptured aneurysms of the basilar bifurcation and posterior cerebral artery coexisting with bilateral common carotid artery occlusion, successfully treated by endovascular coil embolization with a double-balloon remodeling technique. Finally, we review ...
Plumb Andrew A - - 2009
A case of double origin of the posterior inferior cerebellar artery (PICA) is presented, with appearances on both cross-sectional imaging and conventional angiography. An associated aneurysm was found, strengthening the belief that this variation is associated with intracranial aneurysms. Furthermore, this is the first report of a right-sided double-origin PICA ...
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