Search Results
Results 251 - 300 of 1910
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Brus-Ramer Marcel - - 2010
BACKGROUND AND PURPOSE: Hyperperfusion is a rare but serious complication following cerebrovascular angioplasty and stent placement. Radiographically identifying hyperperfusion before the development of severe sequelae is difficult, as few diagnostic criteria have been established. METHODS: A 50-year-old woman, initially presenting with 6 weeks of right-sided hemiparesis and dysarthria, was treated ...
Yoshimura S - - 2009
The frontal bone window (FBW) is a promising approach in evaluating the anterior cerebral artery. The goal of the present study was to determine the rates of detection of the basal cerebral arteries by using the FBW alone and a combination of the FBW with the temporal bone window (TBW) ...
Shinn S H - - 2009
Left cardiac myxoma and consecutive embolization into the brain is well documented, whereas the association of myxoma with multiple fusiform cerebral aneurysms is rare. A 48-year old female with chronic renal failure had complained of syncope after receiving hemodialysis. An echocardiogram showed a 3 x 4 cm sized myxoma and ...
Meng He H Department of Neurology, University of Michigan Medical School, Ann Arbor, MI 48109-5622, - - 2009
Visualization of the cerebral vascular tree is important in experimental stroke and cerebral vascular malformation research. We describe a simple method, nuclear contrast angiography, that enables simultaneous visualization of the arterial tree and cerebral endothelial cells in rodent brain whole mounts. A mixture of latex and black ink was injected ...
Fellgiebel A - - 2009
BACKGROUND: Neurologic hallmarks of Fabry disease (FD) include small fiber neuropathy as well as cerebral micro- and macroangiopathy with premature stroke. Cranial MRI shows progressive white matter lesions (WML) at an early age, increased signal intensity in the pulvinar, and tortuosity and dilatation of the larger vessels. To unravel the ...
Maffei P - - 2009
We report a case of ischemic stroke in a 43 year-old woman with no traditional cardiovascular risk factors and a history of cranial surgery and cranial radiation therapy (CRT) for a GH-secreting pituitary macroadenoma. The neurological work-up on this patient disclosed several cerebral ischemic lesions and demonstrated the occlusion of ...
Gielecki Jerzy - - 2009
The morphometrical and volumetrical changes of the middle cerebral artery (MCA) during the fetal period of development were analyzed by digital-image analysis system (DIAS). Examinations were performed on 304 MCAs from 152 brains of human fetuses ranging from the 12th to 40th weeks of gestation. MCAs were analyzed with respect ...
Phan Thanh G - - 2009
BACKGROUND AND PURPOSE: The diagnosis of external borderzone infarction is made when the stroke is located at the border between the arterial territories. Recent studies have raised questions regarding the location of this borderzone given the variability in the arterial territories. We examined the location of this region using a ...
Suyama Kazuhiko - - 2009
A 17-year-old female with Chiari 2 malformation developed cerebral infarction with angiographically typical bilateral moyamoya vessels manifesting as sudden onset of moderate left hemiparesis. Magnetic resonance imaging revealed multiple infarcts in the right frontal lobe, agenesis of the corpus callosum, upward herniation of the dorsal cerebellum, tectal beak of the ...
Park Kwang-Yeol - - 2009
BACKGROUND/AIMS: Vascular calcification is known to be associated with cardiovascular mortality, and arterial stiffness measured by pulse wave velocity is associated with major cardiovascular risk factors. The aim of the present study was to elucidate the correlation between arterial stiffness and cerebral arterial calcification. METHODS: Arterial stiffness, as measured by ...
Konaka Kuni - - 2009
We present the case of a comatose patient with acute large infarction of posterior cerebral and cerebellar areas and severe hyperthermia (max. 40.4 degrees C). Angiography demonstrated four-vessel occlusion of the main cerebral arteries, suggesting the possibility that both internal carotid and left vertebral arteries were already occluded and he ...
Mishra Pankaj Kumar - - 2009
INTRODUCTION: Retrograde cerebral perfusion is used as an adjunct to deep hypothermic circulatory arrest (DHCA) for cerebral protection while dealing with complex aortic lesions. PATIENTS AND METHODS: Sixty-six patients, operated for aneurysms of the aorta using DHCA, were studied. In 52 patients, retrograde cerebral perfusion was used as an adjunct ...
Nomura Ryutaro - - 2009
A 61-year-old man presented with an extremely rare neoplastic cerebral aneurysm caused by brain metastasis from pleomorphic lung carcinoma manifesting as intracerebral hematoma and sudden onset of semicoma. Computed tomography demonstrated huge intracerebral hemorrhage in the left cerebral hemisphere, which had collapsed into the lateral ventricle. Cerebral angiography disclosed a ...
Hou Wei Hua - - 2009
BACKGROUND AND PURPOSE: Cerebral artery stenosis or occlusion is the most common etiological factor in patients with acute cerebral ischemia, but the rate of early diagnosis is low. The purpose of the study is to evaluate the diagnostic accuracy of transcranial color-coded sonography (TCCS) for cerebral artery stenosis with digital ...
Friedman Jonathan A - - 2009
Intraoperative angiography (IOA) has proven to be a safe and effective adjunct to surgical repair of cerebral aneurysms. Substantial practice variation exists regarding use of this modality in different centers, including use of IOA routinely, selectively, or rarely. In this editorial, we discuss our experience and review the existing literature ...
Seçkin Hakan - - 2009
Crossed aphasia (CA) refers to aphasia occurring after right brain damage in right handers. In the literature, numerous CA cases following cerebral ischemia have been reported, but few met the criteria for a prompt diagnosis. The authors present the case of a 52-year-old woman with SAH caused by a right ...
De Silva K R D KR Department of Anatomy, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka. - - 2009
The degree of contribution from the vertebro-basilar and carotid systems to the origin of the posterior cerebral artery (PCA) is of clinico-anatomical importance. Three configurations in the bifurcation of the posterior communicating artery (PcomA) have been described, foetal, transitional and adult. To examine the extent of contribution from the vertebro-basilar ...
Dimmick S J SJ Department of Radiology, Royal North Shore Hospital; Sydney, Australia - - - 2008
Fenestration of the A2 segment is extremely rare. Cerebrovascular fenestration may be associated with an increased incidence of cerebral aneurysm and other vascular anomalies. Two case reports are presented which identify a fenestration of the A2 segment and other normal variations of the intra-cerebral circulation. A review of the literature ...
Koçer, Abdulkadir
A 28 year-old-male sufferred left third nerve paresis. A pattern of complete and isolated paresis was observed. Neuroimaginings and conventional cerebral angiography revealed abnormally enlarged middle cerebral artery. Because of its fusiform nature, the abnormality was left untreated surgically. The third nerve palsy began to resolve within a week from ...
Oishi Yasuhisa - - 2008
A 76-year-old woman presented with multiple brain infarctions in the right middle cerebral artery and vertebral artery area. Carotid sonography revealed a large mobile pedunculated mass in the brachiocephalic artery, which showed rapid growth despite treatment with heparin and aspirin. Graft replacement of the brachiocephalic artery was performed under selective ...
Miller Alyson A - - 2009
We previously reported that NADPH oxidase activity is greater in intracranial cerebral versus systemic arteries of the rat. Here, we first tested whether NADPH oxidase activity is also greater in intracranial cerebral than systemic arteries of three other animal species, i.e., mouse, rabbit, and pig. Second, using Nox2-deficient mice, we ...
Zhao Hua - - 2008
We report a rare case of acute pulmonary and cerebral complication after transarterial chemoembolisation (TACE) for inoperable hepatocellular carcinoma. The case involved a large tumor and hepatic vein invasion. Nonspecific pulmonary and cerebral symptoms such as acute dyspnoea and transient consciousness loss developed in the patient, a 49-year-old woman, following ...
Aydin Mehmet Dumlu - - 2008
BACKGROUND: Cerebral fat embolism constitutes a major problem in intensive care units and treatment methods are highly controversial. Cerebral fat embolism has been thought to result from the migration of bone marrow fragments to the brain. However, the present authors observed that cerebral fat embolism is not possible unless the ...
Kuo Sheng-Han - - 2008
The hyperdense vessel sign is a debated topic in terms of its sensitivity and specificity for acute cerebral ischemia. Bilateral, hyperdense middle cerebral artery signs are rare presentations of bilateral cerebral infarction. We describe a 17-year-old boy with a history of cerebral palsy and a repaired atrial septal defect, presenting ...
Ahmed Shahzada K - - 2008
Pituitary apoplexy is a potentially fatal condition that can have serious consequences even after successful treatment. One of the potential complications of this syndrome is occlusion of the internal carotid arteries, which causes cerebral ischaemia. This can occur through one of two mechanisms--direct compression of the artery or vasospasm caused ...
Goedee H S - - 2009
INTRODUCTION: Aneurysms of the intracranial arteries in the pediatric population are reportedly rare. There is a male predominance, association with connective tissue disorders, as well as bacterial, mycotic infections, and trauma. RESULTS AND DISCUSSION: Common sites of presentation are the internal carotid artery bifurcation, posterior circulation, and distal segment of ...
Park Byong-Gon - - 2008
Two farnesylacetones, 311 and 312, major active constituents of Sargassum siliquastrum collected from the coast of the East Sea in Korea, showed a moderate vasodilatation effect on the basilar arteries of rabbits. Therefore, treatment with farnesylacetones 311 and 312 may selectively accelerate cerebral blood flow through dilatation of the basilar ...
Monson Kenneth L KL Department of Neurological Surgery, University of California, San Francisco, 1001 Potrero Ave., Building 1, Room 101, San Francisco, CA 94110, USA. - - 2008
The cerebral circulation is fundamental to the health and maintenance of brain tissue, but injury and disease may result in dysfunction of the vessels. Characterization of cerebral vessel mechanical response is an important step toward a more complete understanding of injury mechanisms and disease development in these vessels, paving the ...
Ozturk Hakan A - - 2008
During the cerebral dissection of a 67-year-old male cadaver, a unique combination of variations at the circle of Willis and anterior cerebral artery (ACA) distribution were encountered. The A1 segment of both ACA were fused without an anterior communicating artery (ACoA), forming an X shape and giving rise to a ...
Sfyroeras Giorgos S - - 2009
AIM: To document the incidence of symptomatic cerebral hyperperfusion after carotid stenting and to determine possible predisposing factors. METHODS: A prospective study of 29 consecutive patients undergoing carotid stenting. All patients underwent 1) brain computed tomography scan and magnetic resonance imaging, 2) transcranial Doppler including assessment of cerebrovascular reactivity of ...
Okanishi Tohru - - 2009
We report a two-year and one-month-old immunocompetent boy who developed aphasia and right hemiparesis eight months after mild varicella with only a few vesicles. Magnetic resonance images and angiography demonstrated mixed acute and old infarctions of the bilateral middle cerebral arteries. VZV-DNA was detected on polymerase chain reaction analysis of ...
De Araujo A C P - - 2009
The aim of the present study was to analyse thirty chinchilla (Chinchilla lanigera) brains, injected with latex, and to systematize and describe the distribution and the vascularization territories of the middle cerebral artery. This long vessel, after it has originated from the terminal branch of the basilar artery, formed the ...
Wong S T - - 2008
Infraoptic course of the pre-communicating anterior cerebral artery (A1) is a rare anomaly. In total, there are 42 examples reported in the literature. We report two further patients. The first had an intradural cerebral aneurysm at the low bifurcation of an internal carotid artery (ICA) with bilateral infraoptic course of ...
Pruissen D M O - - 2009
OBJECTIVE: Prothrombotic genetic variants associated with arterial disease probably affect arterial thrombus formation but may also promote atherosclerosis. We hypothesized that specific prothrombotic variants lead to advanced atherosclerosis in patients with cerebral ischemia of arterial origin. METHODS AND RESULTS: We included 689 patients with nondisabling cerebral ischemia of arterial origin. ...
Anda Takeo - - 2008
The authors describe a very rare case of intravascular large B-cell lymphoma in a woman whose ruptured distal middle cerebral artery (MCA) aneurysms were filled with lymphoma cells. A 69-year-old woman who had undergone artificial graft replacement for an aortic aneurysm presented with transient left hemiparesis. Magnetic resonance imaging demonstrated ...
Ulrich Peter T - - 2008
Two hours after a fall, a 5-month-old girl was admitted to our hospital because of an extended galea hematoma and restlessness. Five hours after the trauma, a left hemiparesis developed. The child became drowsy. The hematocrit had fallen to 7.1 g/dL. Cranial computerized tomography disclosed a huge frontoparietal epidural hematoma ...
Sirucek Pavel - - 2008
Moya moya is a progressive cerebral occlusive vasculopathy, rare in European countries. We describe a case of a young woman with right-hand side hemiparesis, mixed expressive aphasia, organic psychosyndrome and cognitive malfunction. Detailed imaging methods displayed bilateral stenosis of the internal carotid artery, bilateral ischemic cerebral changes and bilateral perfusion ...
Shoja Mohammadali M - - 2008
Carbon dioxide (CO(2)) interacts in complex ways with the brain and the endocrine and immune systems. Arterial CO(2) may be elevated or decreased following cerebral ischemia-reperfusion injury or stroke. The aim of the present review is to delineate potential changes in the neuroimmunoendocrine system following cerebral ischemia-reperfusion injury and to ...
Tanaka M - - 2008
BACKGROUND AND PURPOSE: Chronic middle cerebral artery (MCA) occlusion is more common than generally thought. It is important to assess the cerebral hemodynamic status in patients with this chronic condition. We investigated the cerebral hemodynamic and metabolic disturbances in these patients in relation to the development of the collateral vasculature. ...
Bouchard Manon - - 2009
Reversible cerebral vasoconstriction syndrome (RCVS) usually presents with recurrent thunderclap headaches and is characterized by multifocal and reversible vasoconstriction of cerebral arteries that can sometimes evolve to severe cerebral ischemia and stroke. We describe the case of a patient who presented with a clinically typical RCVS and developed focal neurological ...
Lau Gilbert - - 2008
An eight-year-old female developed cerebral infarction, with eventual brain death, as a consequence of therapeutic embolisation of a large facial haemangioma. Post-mortem histological examination revealed the presence of identical foreign body emboli, consistent with at least one of the embolic agents used in the procedure, within the haemangioma and both ...
Kahilogullari G - - 2008
Although the morphology of the corpus callosum is well defined, the arterial supply of this structure has not been comprehensively studied. To elucidate this further, 40 cerebral hemispheres from 30 adult cadaveric brains were obtained. The anterior cerebral arteries were cannulated and injected with red latex. The following were observed ...
Schirmer Clemens M - - 2008
OBJECTIVE: Calcific cerebral emboli are rare yet pose a difficult therapeutic challenge because of their lack of response to thrombolytic therapy and their propensity for fragmentation. CLINICAL PRESENTATION: A 75-year-old woman developed aphasia and hemiparesis after cardiac catheterization from a near-occlusive calcific embolus to the left middle cerebral artery origin. ...
Reis Cassius V C - - 2008
OBJECTIVE: An accessory middle cerebral artery (MCA) usually originates between the A1 and proximal A2 segment of the anterior cerebral artery, reaches the sylvian fissure, and supplies the territory of the MCA. This anomaly has been associated with cerebral aneurysms and Moyamoya disease. We report an accessory MCA arising from ...
Zheng L L Department of Neuroradiology, Institute of Neurological Sciences, Southern General Hospital, Glasgow, UK - - - 2008
We present the case of a 41-year-old man with a vascular network associated with the left posterior cerebral artery (PCA). Although initially considered to be a brain AVM, further investigation showed no arteriovenous shunting and a rete mirabile of the PCA was diagnosed. A well known but rare occurrence mainly ...
Terasawa Yuka - - 2008
A 70-year-old man with right hemiparesis (NIHSS score 15) was admitted to our hospital 1 h after onset. Diffusion-weighted imaging (DWI) revealed a hyperintense lesion in the left corona radiata and magnetic resonance angiography (MRA) revealed occlusion of the left middle cerebral artery (MCA). At 2.5 h after onset, his ...
Christiansen Ingelise - - 2008
Long-term exposure to organic nitrates influences different sections of the vascular bed heterogeneously. Continuous dosage of nitrates leads to the development of tolerance both to the vascular effects and to the unwanted adverse effect, headache. Human data on the development of tolerance in different cranial arteries over more than 24 ...
Kapoor Kanchan - - 2008
Brains were obtained from 1000 medicolegal autopsy subjects of varying ages. The circle of Wills was examined at the base of the brain. The cerebral vessels were observed with regards to their origin, caliber and typical configuration. Variations were noted and grouped into different categories. Out of 1000 specimens examined, ...
Sekhar Laligam N - - 2008
This article extensively reviews the history, indications for bypass, choice of grafts, techniques, complications, and results after cerebral revascularization. The current role and future perspectives of cerebral revascularization are discussed. The results of 295 direct revascularization procedures in 285 patients (130 tumors and 115 aneurysms from 1988 to 2006; 40 ...
Melo Hyder Aragão de - - 2008
BACKGROUND: Environmental factors interfere on sickle cell anaemia (SCA). Transcanial Doppler (TCD) is important to evaluate cerebrovascular disease. OBJECTIVE: To evaluate brain haemodynamic profile of children with SCA in Sergipe. METHODS: Cross sectional study (group1: SCA patients aged 3-18; group2: age and sex matched healthy individuals). Baseline brain flow was ...
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