Search Results
Results 451 - 500 of 1208
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Sato N - - 2007
BACKGROUND AND PURPOSE: Hemimegalencephaly is a rare but well-known congenital malformation with ipsilateral enlargement of the hemicerebrum. However, very little is known about changes in structures outside the involved hemisphere in patients with this condition. We investigated morphologic abnormalities occurring outside the affected hemisphere by MR imaging in a large ...
Petrica Ligia - - 2007
INTRODUCTION: The aim of the study was to evaluate cerebral microangiopathy in type 2 noninsulin- dependent diabetes mellitus (NIDDM) patients and to establish potentially conducive factors. MATERIALS AND METHODS: A group of 34 patients with NIDDM and 31 gender- and agematched normal controls (NC) were assessed by extracranial Doppler ultrasound, ...
Stopa Marcin - - 2007
PURPOSE: To analyze the forces affecting pneumatic displacement of submacular hemorrhage and determine an efficient postoperative positioning method for patients. METHOD: Geometric analysis of the forces that act upon submacular hemorrhage in the absence and presence of a gas bubble. RESULTS: A component of gravity force of the hemorrhage parallel ...
Wada Ryan - - 2007
BACKGROUND AND PURPOSE: Morbidity and mortality in spontaneous intracerebral hemorrhage (ICH) are correlated with hematoma progression. We hypothesized that the presence of tiny, enhancing foci ("spot sign") within acute hematomas is associated with hematoma expansion. METHODS: We prospectively studied 39 consecutive patients with spontaneous ICH by computed tomography angiography within ...
Kanazawa Ryuzaburo - - 2007
BACKGROUND: Vasospasm is a frequent complication in the early clinical course after SAH. Although various methods have been used to measure cerebral perfusion including PET, SPECT, xenon CT, and TCD, these require the patients to remain still for a long period. In addition, TCD is operator dependent. The current study ...
Krisht Ali F - - 2007
OBJECTIVE: Complex basilar aneurysms (large size, wide base, low bifurcation, and dysmorphic posteriorly projecting domes) frequently fail endovascular treatment. We report our experience using the pretemporal transzygomatic transcavernous approach with 50 complex basilar aneurysms. METHODS: Using the pretemporal transcavernous route, opening the occulomotor trigone, and removing the anterior clinoid and ...
Sorimachi Takatoshi - - 2007
Hematoma enlargement is a major cause of poor outcome in patients with intracerebral hemorrhage (ICH). A combination of rapid administration of antifibrinolytics and strict blood pressure (BP) control for prevention of hematoma enlargement has been recently reported. The authors examined the incidence and predictors of hematoma enlargement in patients with ...
Wessling H - - 2007
BACKGROUND: During the last decade of the 20th century, continuous invasive PtO(2) recording has become a widely accepted and well-established means of monitoring patients with acute traumatic or spontaneous cerebral lesions. It is considered a safe and reliable tool for the detection of hypoxia in the ICU setting. However, while ...
Groeschel Samuel - - 2007
BACKGROUND: Perivascular spaces of the brain, also known as Virchow-Robin spaces (VRS), are of immunological and neuropathological relevance and can be observed in magnetic resonance images (MRI). Their histopathological significance in X-linked adrenoleukodystrophy (ALD) has been reported. Aim of this study was to elucidate the prognostic or diagnostic value of ...
Kim Dong Gyu - - 2007
OBJECTIVES: Diffusion tensor image tractography (DTT) could be useful for exploring the state of the corticospinal tract (CST) at the level of the subcortical white matter. The purpose of this study was to demonstrate the speed of degeneration of the CST in patients with cerebral infarct, using DTT. DESIGN: Two ...
Marklund Niklas - - 2007
INTRODUCTION: We describe the neurointensive care (NIC) management of a patient with severe cerebral swelling and raised intracranial pressure (ICP) after severe sodium valproic acid (VPA) intoxication. A previously healthy 25-year old male with mild tonic-clonic epilepsy was found unconscious with serum VPA levels >10,000 micromol/l. The patient deteriorated to ...
Cottin Vincent - - 2007
Hereditary hemorrhagic telangiectasia (HHT) is a genetic disorder characterized by epistaxis, telangiectasia, and visceral vascular manifestations. Infectious and ischemic central nervous system (CNS) manifestations due to embolism through pulmonary arteriovenous malformations (PAVMs) represent the main causes of morbidity. To improve the phenotypic characterization of HHT with PAVM, we conducted a ...
Hernández Glenn - - 2007
INTRODUCTION: Splanchnic ischemia (SI) and increased gut permeability (GP) have been described in acute brain injury (ABI), although their incidence and relation to the type and severity of injury are uncertain. The aim of this study was to evaluate the incidence of both abnormalities in a series of patients with ...
Carmagnani Fabíola Grammatico - - 2007
PURPOSE: The purpose of this study was to evaluate the occlusal characteristics of 104 randomly selected, noninstitutionalized patients with a medical diagnosis of cerebral palsy (CP). METHODS: Patients were grouped according to the CP motor disorder and clinical patterns. Occlusal characteristics were collected by one examiner. Nonparametric statistical tests, including ...
Park J - - 2007
BACKGROUND: This study was carried out to examine indications for angiographic evaluation in the case of spontaneous putaminal hemorrhage. METHODS: Angiographic examinations were performed on 62 consecutive adults with spontaneous putaminal hemorrhage without remarkable subarachnoid hemorrhage. Most patients were evaluated using conventional catheter angiography except for hypertensive patients over the ...
Eldesoky Ehab S - - 2007
The urinary ratio of 6 beta-hydroxycortisol/cortisol (6 beta-OHC/C) as a biomarker of CYP3A4 metabolizing activity has been studied in Egyptian patients with chronic liver cirrhosis associated with previous hepatic Schistosomiasis infection to determine any possible alteration in enzyme activity. The ratio of 6-beta OHC/C was determined in morning urine samples ...
Girot Marie - - 2007
BACKGROUND: Fluid-attenuated inversion recovery (FLAIR) sequences may reveal hyperintense vessel signals (HVS) at the acute stage of cerebral ischemia. The aim of this study was to test the hypothesis that HVS are associated with a worse outcome. METHODS: We included 30 consecutive patients admitted within 12 h after onset of ...
Fukuda, Ikuo
The objective of this study was to investigate the role of immediate cerebral angiography and local thrombolysis for stroke after cardiovascular surgery. Patients and methods: Aggressive approach including early cerebral angiography and intraarterial administration of fibrinolytic agent for stroke after cardiovascular surgery was employed. Seven patients who had stroke after ...
Maruyama Keisuke - - 2006
OBJECT: Appropriate management of hemorrhage after Gamma Knife surgery (GKS) for arteriovenous malformations (AVMs) of the brain is poorly understood, although a certain proportion of patients suffer from hemorrhage. METHODS: Among 500 patients observed for 1 to 183 months (median 70 months) after GKS, 32 patients (6.4%) suffered a hemorrhage. ...
Fonseca José Roberto Falco - - 2006
Endovascular treatment of intracranial aneurysms with coil embolization became the most important therapeutic option with better morbidity and mortality rates and quality of life. Following immobility, patients are treated with general anaesthesia. OBJECTIVE: To test viability of endovascular treatment on wake patients. METHOD: Considering clinical symptoms, psychological characteristics and aneurysmal ...
Hellingman Catharine A - - 2007
BACKGROUND AND PURPOSE: Cerebrospinal fluid drainage is often indicated in patients with acute hydrocephalus after aneurysmal subarachnoid hemorrhage but is believed to increase the risk of rebleeding. We studied the risk of rebleeding in patients with subarachnoid hemorrhage during treatment for acute hydrocephalus. METHODS: We included patients with hydrocephalus treated ...
Luo Chao-Bao - - 2007
The decision to manage ruptured cerebral aneurysms (RCAs) aggressively in elderly patients remains difficult because of inherent procedural risks and patient comorbidities. The purpose of this study was to report our experiences with and outcomes of endovascular embolization of RCAs in patients older than 70years. We studied 25 patients older ...
Hameed Bilal - - 2006
Cerebral venous sinus thrombosis (CVT) can affect all age groups, particularly women of childbearing age. Overall prognosis for survival and functional independence is better than it was believed. Mortality usually ranges from 6-15% and transtentorial herniation is the major cause of death. Approximately 80% of patients are functionally independent in ...
Anzej Sasa - - 2007
INTRODUCTION: Young subjects with acute cerebral ischaemia - stroke or transient ischaemic attack - form an etiologically heterogeneous and often not clearly explained group of patients. The aim was to investigate possible disturbances in haemostasis and inflammation long after an acute cerebral ischaemic event. MATERIALS AND METHODS: Forty-four consecutive patients ...
Naidech Andrew M - - 2006
OBJECTIVE: Higher-goal hemoglobin (hgb) and more packed red blood cell transfusions lead to worse outcomes in general critical care patients. There are few data on hgb, transfusion, and outcomes after aneurysmal subarachnoid hemorrhage (SAH). METHODS: We reviewed the daily hgb levels of 103 patients with aneurysmal SAH. Cerebral infarction was ...
Agid R - - 2006
INTRODUCTION: To evaluate the clinical role of CT angiography (CTA) in patients with acute subarachnoid hemorrhage (SAH) for treatment decision-making. METHODS: Consecutive patients with acute SAH had CTA using a 64-slice scanner for initial clinical decision-making. Image processing included multiplanar volume reformatted (MPVR) maximum intensity projections (MIP) and 3D volume-rendered ...
Beck Jürgen - - 2006
BACKGROUND AND PURPOSE: The clinical significance of sentinel headaches in patients with subarachnoid hemorrhage (SAH) is still unknown. We investigated whether patients with a sentinel headache (SH) have a higher rate of rebleeding after SAH. METHODS: An SH was defined as a sudden, severe, unknown headache lasting >1 hour with ...
Sviri Gill E - - 2006
BACKGROUND AND PURPOSE: The purpose of the present study was to evaluate the impact of basilar artery (BA) vasospasm on outcome in patients with severe vasospasm after aneurysmal subarachnoid hemorrhage (aSAH). METHODS: Sixty-five patients with clinically suspect severe cerebral vasospasm after aSAH underwent cerebral angiography before endovascular treatment. Vasospasm severity ...
Holt, John F.
Data were collected on 52 patients (30 males and 22 females) with neurofibromatosis. Using the volumetric method of Gordon, it was found that 44% of the patients had cranial capacities above the 95th percentile (70% were above the 50th percentile). The presence of intracranial tumors and/or hydrocephalus did not influence ...
Kim-Han Jeong Sook JS Department of Neurology, Washington University, St. Louis, MO, - - 2006
Recent measurements in intracerebral hemorrhage (ICH) patients suggest a primary reduction in brain metabolism is responsible for reduced cerebral blood flow and low oxygen extraction surrounding the hematoma. We sought to determine whether reduced mitochondrial respiratory function could account for reduced metabolic demand in ICH patients. Brain-tissue samples from 6 ...
Huttner Hagen B - - 2006
OBJECT: Only limited data exist addressing the long-term outcome of patients with ganglionic hemorrhage complicated by intraventricular hemorrhage (IVH) and hydrocephalus that requires an external ventricular drain (EVD). The aim of this study was to compare the long-term outcome of patients with pure ganglionic hemorrhage and those requiring an EVD ...
Pretnar-Oblak Janja - - 2006
BACKGROUND AND PURPOSE: In our study we hypothesized that statins improve endothelial function in patients with lacunar infarctions (LI). Cerebral and systemic endothelial function was determined before and after 3-months treatment with atorvastatin. METHODS: Cerebral endothelial function was determined by L-arginine reactivity and systemic endothelial function by flow-mediated dilatation (FMD) ...
Jung Jin Young - - 2006
The need for repeat angiography in patients with subarachnoid haemorrhage (SAH) who initially present with a negative angiogram is still debated. The aim of this study was to provide a management protocol for 'angiogram-negative SAH'. From January 1986 to June 2004, 143 patients with SAH were admitted to our institution ...
Oertel Matthias - - 2006
S100-B and neuron specific enolase (NSE) are known predictors of outcome in head injured and stroke patients. This study was conducted to test the hypothesis that S-100B and NSE can predict the development of vasospasm and outcome within the first 3 days after subarachnoid haemorrhage (SAH). Fifty-one SAH patients (mean ...
van den Bergh W M - - 2006
BACKGROUND AND PURPOSE: Atherosclerosis impairs the endothelial dependent vasodilatation and may change the diameter and plasticity of cerebral vessels. The aim of this study was to investigate if an index of the occurrence of atherosclerosis is associated with the risk of delayed cerebral ischemia or poor outcome after subarachnoid haemorrhage. ...
Okazawa Hidehiko - - 2007
PURPOSE: The aim of this study was to clarify whether decreases in baseline regional cerebral blood flow (rCBF) and in residual cerebral vasoreactivity (CVR), assessed by the acetazolamide (ACZ) challenge, can detect misery perfusion in patients with chronic cerebrovascular disease (CVD). METHODS: Oxygen extraction fraction (OEF) and other haemodynamic parameters ...
Fiehler Jens - - 2006
Black dots in the brain parenchyma diagnosed in T2(*)-weighted magnetic resonance imaging should be interpreted in light of the patient's history as well as the location, number and distribution of the lesions and associated imaging findings. These dots will correspond to haemoglobin degradation products in most of the cases referred ...
Kreulen M - - 2007
The aim of this study was to objectively assess the relationship between impaired forearm rotation and movement patterns of the upper arm and trunk in patients with hemiplegic cerebral palsy. For this purpose, 'extrinsic forearm rotation' was introduced as a parameter to quantify the cumulative result of all movements that ...
Missori Paolo - - 2006
The assessment of the flow-void in the cerebral aqueduct of patients with post-traumatic hydrocephalus on magnetic resonance imaging (MRI) evaluation could concur the right diagnosis and have a prognostic value. We analysed prospectively 28 patients after a severe head injury (GCS<or=8), with radiological or clinical suspicion of post-traumatic hydrocephalus and ...
Hurst Daniel L - - 2006
A retrospective review of pediatric patients with spastic cerebral palsy was undertaken at Texas Tech University Health Sciences Center covering a period from January 1, 2000, until December 31, 2003. One hundred twenty pediatric patients were identified in the Texas Tech University Health Sciences Center child neurology clinic with spastic ...
Feenstra I - - 2006
Inversion duplication 8p is a rare chromosome disorder characterised by severe mental retardation, minor facial dysmorphisms, and corpus callosum agenesis. Few cerebral imaging studies have been reported. We describe 9 patients with an inversion duplication 8p, involving variable segments of the short arm of chromosome 8. MRI was performed in ...
Huttner H B - - 2006
BACKGROUND AND PURPOSE: In patients with perimesencephalic subarachnoid hemorrhage (pSAH) DSA is recommended to exclude aneurysms to due false negative findings in CT-angiography. However, whether a second DSA is indicated during the clinical course to exclude--in addition to aneurysms--fistulas, too, is still under debate. We aimed to evaluate the benefit ...
Ellis Martin H - - 2006
Low molecular weight heparins (LMWHs) are a rapidly growing class of anticoagulant drug. Their efficacy has been demonstrated in several clinical settings where they are rapidly becoming the anticoagulant of choice. Controlled clinical studies in patients with deep vein thrombosis, pulmonary embolism, and unstable angina have documented that the frequency ...
Shigeki Yamashita
The effects of hypocapnic-hyperventilation on cerebral blood flow (CBF) and cerebral metabolic rate for oxgen (CMRO2) were evaluted in 7 patients with hepatic or septec encephalopathy. A positive linear relationship between CBF and PaCO2 was observed in hepatic patients (CBF=3.12PaCO2-81.4,r=0.739) and in septic patients (CBF=1.96PaCO2-36.1, r=0.535). Although these regression equations ...
McCarron M O - - 2006
BACKGROUND: The natural history and triggers of perihaematomal oedema (PHO) remain poorly understood. Cerebral amyloid angiopathy (a common cause of lobar haemorrhage) has localised anticoagulant and thrombolytic properties, which may influence PHO. We hypothesised that early (within 24 hours) oedema to haematoma volume ratios are smaller in patients with lobar ...
Esper Dema Halasa - - 2006
BACKGROUND: Patients with intracerebral (ICH), intraventricular (IVH) and subarachnoid hemorrhage (SAH) have increased morbidity and mortality compared with other forms of stroke. We postulate that the systemic inflammatory state triggered by these forms of nontraumatic intracranial hemorrhage (IH) translates into higher nutrition requirements than traditionally assumed. In order to test ...
Frontera J A - - 2006
The authors performed serial transcranial Doppler (TCD) and carbon dioxide reactivity (CO2R) testing in 20 aneurysmal subarachnoid hemorrhage patients to determine whether impaired cerebrovascular reactivity was associated with symptomatic vasospasm. Symptomatic vasospasm occurred in 9 of 14 patients with abnormal CO2R and in none of 6 patients with preserved reactivity ...
Arai Y Y Department of Neurosurgery, Faculty of Medical Sciences, University of Fukui, Fukui, Japan - - - 2006
Pre-radiosurgical embolization was carried out using cyanoacrylate in seven of 13 patients with cerebral arteriovenous malformations (AVMs) treated by stereotactic radiosurgery (SRS) with a linear accelerator (LINAC). The aim of embolization before SRS was the reduction of AVM volume and/or the elimination of vascular structures bearing an increased risk of ...
Urban P P - - 2006
Dysarthria is a frequent symptom in cerebral ischaemia. However, speech characteristics of these patients have not previously been investigated in relation to lesion site in a prospective study. We investigated the auditory perceptual features in 62 consecutive patients with dysarthria due to a single, non-space-occupying cerebral infarction confirmed by MRI. ...
Danaci Murat - - 2006
PRINCIPLES: Coumadin-induced renal and retroperitoneal hemorrhages are rare. Clinical and laboratory findings are not specific for the diagnosis. Computed tomography (CT) has some advantages in the evaluation of these patients. The aim of this study is to report our experience regarding renal and retroperitoneal hemorrhage due to Coumadin, and describe ...
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