Search Results
Results 351 - 400 of 1261
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Hsiao Ming-Chang - - 2006
Symptomatic hemorrhagic transformation is common in supratentorial and cerebellar infarction, but is rare in brainstem infarction. It is seldom reported in basilar artery occlusion. Although early arterial recanalization by thrombolytic agent has became the new trend of treatment, for some neurologists anticoagulant is still a conventional alternative treatment of basilar ...
Fan Ju-Sing - - 2006
The clinical course of patients with hemorrhagic transformation in stroke secondary to spontaneous cervical internal carotid artery dissection (ICAD) has not been elucidated. We report a 36-year-old man with presentation of headache and subsequent left hemiparesis. Magnetic resonance imaging disclosed right ICAD with nearly complete occlusion of the right distal ...
Nakahara Kuniaki - - 2006
A 46-year-old woman presented with hemorrhage from a non-functioning pituitary adenoma manifesting as sudden onset of severe headache. Computed tomography demonstrated diffuse subarachnoid hemorrhage (SAH) and a suprasellar mass with intratumoral hematoma. The patient underwent transnasal transsphenoidal removal of the pituitary adenoma. This type of SAH with intratumoral hematoma simulates ...
Turowski B - - 2007
INTRODUCTION: Exact quantification of vasospasm by angiography is known to be difficult especially in small vessels. The purpose of the study was to develop a new method for computerized analysis of small arteries and to demonstrate feasibility on cerebral angiographies of rats acquired on a clinical angiography unit. METHODS: A ...
Greenberg Edward - - 2007
BACKGROUND: The false-negative rate of DSA in the setting of a ruptured cerebral aneurysm is approximately 15% (Topcuoglu M, Ogilvy C, Carter B, et al. Subarachnoid hemorrhage without evident cause on initial angiography studies: diagnostic yield of subsequent angiography and other neuroimaging tests. J Neurosurg 2003;98:1235-1240). Detecting these aneurysms is ...
Boscolo Elisa - - 2006
Cerebral aneurysms and arteriovenous malformations (AVM) are a common cause of stroke and cerebral hemorrage. Both are often discovered when they rupture, causing subarachnoid hemorrhage (SAH). SAH-induced vasospasm is mediated by enhanced vasoconstriction due to endothelin-1 (ET-1). We investigated whether endothelial cells (ECs) obtained from aneurysm and AVM express phenotypic ...
Bendszus M - - 2006
Endovascular treatment of aneurysms has become an alternative to the neurosurgical approach. Here, we describe a patient presenting with a subarachnoid hemorrhage (SAH) due to a basilar tip aneurysm, which was completely occluded with coils. Fourteen days later the patient died due to massive recurrent SAH. Histologic evaluation showed aneurysm ...
Usman M Haris U - - 2006
Abciximab, a platelet glycoprotein IIb/IIIa receptor blocker, is a well-known agent in percutaneous coronary intervention because of its antiplatelet, antithrombotic effects, which allow for good outcome. Major bleeding is a well-recognized complication of abciximab therapy, and pulmonary hemorrhage, although infrequent, is a serious, under-recognized, and often fatal complication. We describe ...
Shahlaie Kiarash - - 2006
Pituitary apoplexy is an uncommon condition typically caused by acute, hemorrhagic expansion of the pituitary gland in patients with an adenoma that undergoes infarction. Although various risk factors have been described, the vascular events leading to apoplexy are not well understood. Disruption of microvascular blood flow is a well-known cause ...
de Oliveira Jean G - - 2007
Cerebral vasospasm is one of the most important complications of aneurysmal subarachnoid hemorrhage. The effect of aneurysm occlusion technique on incidence of vasospasm is not exactly known. The objective was to analyze surgical clipping versus endovascular coiling on the incidence of cerebral vasospasm and its consequences. Using the MEDLINE PubMed ...
Joo S P - - 2006
Digital subtraction angiography (DSA) has been used as the standard method for detecting cerebral vasospasm after subarachnoid hemorrhage (SAH). Multislice computed tomographic angiography (CTA) is a relatively recent method used for evaluating the vasculature of the intracranial arteries. The purpose of this study was to compare multislice CTA and DSA ...
Munch Elke - - 2006
Symptomatic vasospasm leading to delayed ischemia and neurological deficits is one of the most serious complications after aneurysmal subarachnoid hemorrhage (SAH). Reliable and early detection of symptomatic vasospasm is one of the major goals in the management of patients with SAH. In awake patients, the close clinical neurological examination still ...
Brisman Jonathan L - - 2006
OBJECTIVES: To review the historical development and current status of endovascular techniques used in the treatment of symptomatic vasospasm following aneurysmal subarachnoid hemorrhage. METHODS: This article summarizes the relevant literature on neurointerventional therapy for vasospasm, namely instillation of intraarterial medication (papaverine, nicardipine, verapamil) and transluminal balloon angioplasty. The authors synthesize ...
Rath G P - - 2006
Cerebral vasospasm remains a significant cause of mortality and morbidity after aneurysmal subarachnoid haemorrhage. Use of either intra-arterial or intracisternal papaverine as an alternative treatment of refractory cerebral vasospasm has been associated with various complications including haemodynamic instabilities. However, our search in literature did not reveal association of bradycardia and ...
Laurencikas Evaldas - - 2006
We describe a 12-year-old boy with subarachnoid hemorrhage. Cerebral angiography revealed multiple fusiform intracranial arterial aneurysms. Surgical therapy other than ventricular drainage was not feasible due to the extent and pattern of pathological changes. Aspergillus antigen was found in the cerebrospinal fluid (CSF). However, cultures of urine, CSF, and samples ...
Sun Li-Chuan - - 2006
Idiopathic pulmonary hemosiderosis (IPH) is a rare cause of diffuse alveolar hemorrhage (DAH) in pediatric patients. During the acute phase, death due to massive alveolar hemorrhage and subsequent severe respiratory failure with associated multiple organ failure often occurs. We report the case of an 11-year-old girl who developed severe hypoxemic ...
Sviri Gill E - - 2006
OBJECTIVE: Transcranial Doppler (TCD) criteria for basilar artery (BA) vasospasm are poorly defined, and grading criteria for vertebrobasilar vasospasm are unavailable. The purpose of the present study was to define TCD grading criteria for BA vasospasm on the basis of the absolute flow velocities and the intracranial to extracranial flow ...
Andaluz Norberto - - 2006
Given the relatively benign natural history of cavernous carotid artery aneurysms and based on anecdotal reports in the literature of subarachnoid hemorrhage (SAH) or subdural hemorrhage (SDH) from these aneurysms, observation is warranted and typically recommended. In this case report, the authors describe a woman who harbored a partially thrombosed, ...
Shintaku Masayuki - - 2006
An autopsy case of chronic thrombotic occlusion of the superior sagittal sinus (SSS) with an unusually protracted clinical course is reported. The patient was an 84-year-old man without any predisposing conditions for thrombosis. The clinical features were atypical and were characterized by recurrent cerebral subcortical hemorrhages. The autopsy revealed a ...
Walz D M - - 2006
Subarachnoid hemorrhage (SAH) is a recognized presentation of Moyamoya disease in adults. Because there are extensive collateral networks and potential complications that develop, a thorough investigation of the intracranial and extracranial circulation is necessary to exclude a treatable cause when these patients present with SAH. We present a case of ...
Macdonald James A - - 2006
Recombinant activated factor VII (rFVIIa) is a powerful hemostatic agent developed for use in hemophilia. It has been used increasingly in life-threatening hemorrhage in a variety of other settings in which conventional medical or surgical therapy is unsuccessful. This report describes the successful use of rFVIIa for pulmonary hemorrhage due ...
Terada Tomoaki - - 2006
OBJECTIVE: Hemorrhagic complications were analyzed in 106 procedures of 99 patients treated with percutaneous transluminal angioplasty (PTA) or stenting for intracranial arterial stenoses. METHODS: Ninety-nine patients with intracranial arterial stenosis were treated with PTA or stenting 106 times from January 1995 to December 2003. Fifty-seven patients had intracranial internal carotid ...
Ake Julie A - - 2006
Human immunodeficiency virus (HIV)-associated cerebral aneurysmal arteriopathy is described in the pediatric medical literature and features diffuse fusiform aneurysms of the arteries of the circle of Willis. We present the first report (to our knowledge) of this disease entity in an adult, a 29-year-old woman with acquired immunodeficiency syndrome who ...
Takenaka I - - 2006
We report the case of a 79-yr-old woman with subarachnoid haemorrhage (SAH) in whom torsade de pointes (TdP) caused by worsening the QT prolongation occurred during clipping of cerebral artery aneurysm. This patient shows a potential risk of occurrence of life-threatening tachyarrhythmia, TdP by prolonging the QT interval during surgery ...
Aghayev Emin - - 2006
OBJECTIVE: Autopsy determination of fatal hemorrhage as the cause of death is often a difficult diagnosis in forensic medicine. No quantitative system for accurately measuring the blood volume in a corpse has been developed. MATERIALS AND METHODS: This article describes the measurement and evaluation of the cross-sectional areas of major ...
Inoue Tomohiro - - 2006
A 61-year-old male initially presented to the ophthalmology department complaining of sudden visual loss. Fundus photography and ultrasonography followed by computed tomography identified Terson's syndrome caused by subarachnoid hemorrhage (SAH). Cerebral angiography revealed a dissecting aneurysm of the left vertebral artery. Other than obtunded visual acuity, his neurological examination was ...
Fainardi E - - 2006
INTRODUCTION: The aim of this study was to assess regional cerebral blood flow (rCBV) in areas of CT hypoattenuation appearing in the postoperative period in patients treated for aneurysmal subarachnoid hemorrhage (SAH) using xenon-enhanced CT scanning (Xe-CT). METHODS: We analyzed 15 patients (5 male and 10 female; mean age 49.7+/-12.1 ...
Herwadkar A A Newcastle General Hospital, Neuroradiology,Westgate Road; - - 2006
Carotid rete mirabile (CRM) is a rare condition consisting of a physiological network between the external and internal carotid arteries in lower vertebrates. Only a few cases have been reported in humans presenting as hemorrhagic or ischemic cerebrovascular disorder. We present a case of CRM presenting as an aneurysmal subarachnoid ...
Wong George K C - - 2006
Whereas advances in neurosurgical treatment and intensive care management improve the results from many of the devastating complications associated with aneurysmal subarachnoid hemorrhage, cerebral vasospasm remains a major cause of neurological morbidity and mortality. Experimental studies suggested that MgSO(4) inhibits excitatory amino acid release, blocks N-methyl-D-aspartate (NMDA) receptors and prevents ...
Sindel Timur - - 2006
Persistent sciatic artery PSA represents the persistence of the sciatic vessel in adult life that is responsible for the major blood supply to the lower limb in early embryologic development. The incidence of PSA has been estimated as low as 0.025-0.04%. We present 2 cases of PSA, one of which ...
Jacobi C - - 2006
We report the case history of a patient who suffered a subarachnoid hemorrhage (SAH) in association with early Lyme neuroborreliosis. After a tick bite, this patient developed erythema chronicum migrans and complained of stinging radicular pain in both legs. A computed tomography (CT) scan was performed because of acute headache ...
McGirt Matthew J - - 2006
OBJECTIVE: Experimental evidence suggests that intercellular adhesion molecule-1 mediated leukocyte extravasation contributes to the pathogenesis of cerebral vasospasm. Simvastatin, an HMG-CoA reductase inhibitor, decreases intercellular adhesion molecule-1 expression and competitively inhibits leukocyte intercellular adhesion molecule-1 binding. We hypothesized that administration of simvastatin after the onset of subarachnoid hemorrhage (SAH) would ...
Akimoto, Yonei
Changes in pial vessel diameter during hypotension induced by hemorrhage, trimethaphan, or nitropusside were studied in 21 cats anesthetized with halothane (0.9%, end-tidal). Pial arteries and veins were measured by immage-splitting technique and were each divided into three groups according to the reference diameter: Ⅰ; 24-50μm, Ⅱ; 51-100μm, Ⅲ; 101-352μm. ...
Sherlock Mark - - 2006
BACKGROUND: Hyponatraemia is common following subarachnoid haemorrhage (SAH) but the pathogenesis is unclear. Objective To establish the incidence, pathophysiology and consequences of hyponatraemia following SAH. METHODS: A retrospective case-note analysis of all patients with SAH admitted to Beaumont Hospital between January 2002 and September 2003. Three hundred and sixteen cases ...
Loch Macdonald R - - 2006
Cerebral vasospasm is delayed narrowing of the large arteries of the circle of Willis occurring 4 to 14 days after aneurysmal subarachnoid hemorrhage (SAH). It is but one cause of delayed deterioration after SAH but, in general, is the most important potentially treatable cause of morbidity and mortality after SAH. ...
Weidauer Stefan - - 2006
Although the rat subarachnoid hemorrhage model is well established in vasospasm research, the angiographic evaluation is difficult due to the animal's small size. For this reason, the aim of the study was to develop a standardized angiographic examination technique without additional complex equipment. Under general anesthesia, 11 Sprague-Dawley rats underwent ...
Murthy TV S P, ...
Cerebral vasospasm is the prolonged, intense constriction of the larger conducting arteries in the subarachnoid space which are initially surrounded by subarachnoid clot. Significant narrowing develops gradually over the first few days after the aneurysmal rupture. The spasm usually is maximal in about a week′s time following haemorrhage. Vasospasm is ...
Macdonald R Loch - - 2006
Arteries that develop vasospasm after subarachnoid hemorrhage (SAH) may have altered contractility and compliance. Whether these changes are due to alterations in the smooth muscle cells or the arterial wall extracellular matrix is unknown. This study elucidated the location of such changes and determined the calcium sensitivity of vasospastic arteries. ...
Phillips Courtney K - - 2006
Spontaneous retroperitoneal hemorrhage is a rare clinical entity; signs and symptoms include pain, hematuria, and shock. Spontaneous retroperitoneal hemorrhage can be caused by tumors, such as renal cell carcinoma and angiomyolipoma; polyarteritis nodosa; and nephritis. The least common cause is segmental arterial mediolysis. Although computed tomography is used for the ...
Armonda Rocco A - - 2006
INTRODUCTION: Cortical venous thrombosis is a rarely encountered mechanism for intracerebral hemorrhage. Multimodal monitoring may guide neurosurgical and critical care treatment in the setting of cerebral venous thrombosis. METHODS: We report a 37-year-old service member who was admitted to a local field hospital for complaints of severe headache and left ...
Sakowitz Oliver W - - 2006
OBJECTIVE: To assess the status quo of clinical management in patients with ruptured intracranial aneurysms in Germany. In addition to preferences in vascular treatment (i.e., surgical versus endovascular), the choice of diagnostics and treatment options in the pre- and postprocedural phase is emphasized. METHODS: A standardized questionnaire was used in ...
Stein Sherman C - - 2006
The authors review literature that challenges the view that vasospasm involving large arteries is the exclusive cause of delayed ischemic neurological deficits (DINDs) following subarachnoid hemorrhage. They discuss alternative mechanisms and review the evidence supporting a potential role for thromboembolism. They conclude that vasospasm and thromboembolism play interrelated and additive ...
Lee Kendall H - - 2006
The combination of induced hypertension, hypervolemia, and hemodilution (triple-H therapy) is often utilized to prevent and treat cerebral vasospasm after aneurysmal subarachnoid hemorrhage (SAH). Although this paradigm has gained widespread acceptance over the past 20 years, the efficacy of triple-H therapy and its precise role in the management of the ...
Misthos Panagiotis - - 2006
Sudden life-threatening hemorrhage caused by erosion of the wall of a thoracic blood vessel such as the aorta, pulmonary artery, or pulmonary vein, in the late postoperative period is extremely rare and presents a challenging emergency. We report the cases of two patients whose only clinical manifestation was a hemorrhagic ...
Marushima Aiki - - 2006
A patient with moyamoya disease presenting with subarachnoid hemorrhage (SAH) is reported. A 38-year-old Japanese woman developed a sudden onset headache and nausea during hospitalization for a cerebral infarct in the right frontal lobe. CT scan showed SAH in the left frontal sulci. Cerebral angiogram showed stenosis of the distal ...
Gonzalez L Fernando - - 2005
INTRODUCTION: Isolated spinal aneurysms are rare; only a few have been reported. To the best of our knowledge, this series represents the largest experience with four ruptured spinal aneurysms, all of which were treated surgically. METHODS: Clinical information from the hospital charts and diagnostic images of four patients with the ...
Ogungbo Biodun - - 2005
We report the case of a 43-year-old patient with delayed ischemic neurological deficit and an ischemic penumbra, reversed with triple H therapy (hypertension, hypervolemia, and hemodilution). The patient presented with subarachnoid hemorrhage caused by an aneurysm of the anterior communicating artery. He underwent surgical clipping and developed cerebral ischemia due ...
Hirashima Yutaka - - 2005
OBJECTIVE: In this study, we evaluated the difference in incidence of symptomatic vasospasm between ruptured aneurysms in the anterior and posterior circulation using multiple logistic regression analysis. METHODS: A total of 145 consecutive patients who underwent surgery for aneurysms within 72 hours after subarachnoid hemorrhage (SAH) were studied. RESULTS: The ...
Nakau Reiko - - 2005
A 59-year-old woman with type IIA von Willebrand's disease (VWD) presented with subarachnoid hemorrhage (SAH). Computed tomography showed SAH in the right sylvian fissure and intracranial hemorrhage in the right temporal lobe. Angiography demonstrated an aneurysm at the bifurcation of the right middle cerebral artery. Neck clipping was performed on ...
Provencio J Javier - - 2005
Subarachnoid hemorrhage (SAH) is a devastating and complicated disease. The development of therapeutic interventions has been hampered by a poor understanding of the three components of the disease pathology in SAH: aneurysm rupture, cerebral edema, and vasospasm. The role of inflammation in the pathology of subarachnoid hemorrhage will be reviewed. ...
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