Search Results
Results 551 - 600 of 1015
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Powsner R A - - 1998
Cerebral vasospasm is a frequent complication after subarachnoid hemorrhage and contributes to overall morbidity and mortality. Arteriography is the standard test for determining the presence of vasospasm. A retrospective review of 16 patients with cerebral aneurysm was undertaken to assess the sensitivity and specificity of SPECT for diagnosis of vasospasm. ...
Lance R S - - 1998
Telomerase activity has been detected in a wide variety of human malignancies. It appears to be one of the fundamental ingredients necessary for cellular immortality. We sought to determine the incidence of telomerase activity in solid transitional cell carcinoma (TCC) specimens, benign urothelium, bladder washings, and voided urine from patients ...
Kuhn F - - 1998
OBJECTIVE: The purpose of study A was to assess the effectiveness of vitrectomy for Terson syndrome. The purpose of study B was to determine the incidence and significance of vitreous hemorrhage in patients with subarachnoid hemorrhage. DESIGN: Study A is a retrospective review of case series. Study B is a ...
Yoshimoto Y - - 1998
OBJECT: The authors sought to investigate the mechanisms and pathophysiological effects of subdural fluid collection after surgery for aneurysmal subarachnoid hemorrhage (SAH). METHODS: The authors retrospectively analyzed the medical records of 76 patients who had undergone craniotomy. The patients included 55 with aneurysmal SAH (SAH group) and 21 with unruptured ...
Eskridge J M - - 1998
OBJECTIVE: To report the results of the first 50 consecutive patients with vasospasm secondary to subarachnoid hemorrhage treated with balloon angioplasty after failure of medical management. METHODS: Retrospective uncontrolled study of 50 consecutive patients treated with balloon angioplasty between February 1988 and July 1992. Forty-six had objective clinical deterioration despite ...
Kasuya H - - 1998
We previously reported that the coagulation system in cerebrospinal fluid (CSF) is strongly activated in the early stage of a subarachnoid haemorrhage (SAH). We evaluated the relationship among thrombin activity, degree of SAH, amount of clearance of SAH, and vasospasm. The CSF levels of fibrinopeptide A (FPA) were measured by ...
Schmidtke K - - 1998
The aim of this study was to investigate the pattern of regional cerebral blood flow changes associated with transient global amnesia (TGA). METHODS: HMPAO SPECT was performed in six consecutive patients during the acute phase of TGA. A follow-up SPECT was performed 3-20 wk later in four of the six ...
Wingerchuk D M - - 1998
BACKGROUND AND PURPOSE: Anticoagulation (AC) may improve outcome in cerebral venous thrombosis (CVT), even when complicated by pretreatment hemorrhagic infarction (HI). The HI characteristics which affect the decision to initiate AC therapy and its outcome are unknown. We reviewed our experience with AC treatment for patients with CVT and HI. ...
Cronqvist M - - 1998
PURPOSE: We describe our therapeutic strategy and correlate the anatomic results and clinical outcomes in patients who received immediate fibrinolytic therapy for thromboembolic complications occurring during endovascular treatment of an intracerebral aneurysm. METHODS: The medical records and angiographic examinations of 19 patients were reviewed. All endovascular procedures were performed with ...
Mori K - - 1998
Downward transtentorial herniation is a major cause of death and disability caused by acute supratentorial mass lesions. Thirteen patients, 7 men and 6 women aged from 23 to 75 years old, with progressive transtentorial herniation caused by cerebral contusion with acute subdural haematoma, acute brain swelling after aneurysmal subarachnoid haemorrhage, ...
Schröder M L - - 1998
Recent early cerebral blood flow (CBF) studies on severe head injury have revealed ischemia in a substantial number of patients with a variety of CT diagnoses. However, the underlying derangements causing this early ischemia are unknown, but cerebral blood volume (CBV) measurements might offer some insight into this pathology. Therefore, ...
Barinagarrementeria F - - 1998
BACKGROUND AND PURPOSE: Subarachnoid cysticercosis is a well-recognized cause of cerebral infarction. However, few patients with this infection develop cerebral infarction, and the reason for this is not known. The aim of this study was to determine the frequency of cerebral arteritis in these patients. METHODS: Using cerebral arteriography, we ...
Abdul Mannan M - - 1998
In this study of 1000 cerebrovascular disease patients, the commonest age are 50 to 70 years with male predominance. The urban patients are large in number and the risk factors are sedentary life, stress and strain, smoking, and hypertension. The patients are more chronic than acute and transport facilities are ...
Davies M A - - 1997
Summary: The recently proposed classification scheme of Borden, Wu, and Shucart (Borden(*)) should have the ability to identify those intracranial dural arteriovenous fistulae (ICDAVF) which will continue to behave in a benign fashion. We examine for the first time the natural history of benign ICDAVF, including the predictive ability of ...
Kawai K - - 1997
We retrospectively evaluated efficacy and risk of external ventricular drainage which was performed in early management of high grade subarachnoid hemorrhage. Acute ventricular drainage was performed on 36.6% of 93 patients with grade V subarachnoid hemorrhage. The percentage of patients whose GCS improved following ventricular drainage were 14.3% from GCS ...
Nobili F - - 1997
Systemic Sclerosis (SSc) is a multisystem disease characterised by proliferation of vascular tissue, obliterative microvascular lesions and diffuse organ fibrosis. Despite widespread vascular disease, Central Nervous System complaints are only infrequently reported and it is uncertain whether they merely derive from systemic complications or whether they may be also caused ...
Miyasaka Y - - 1997
OBJECTIVE: It is generally considered that mass effect caused by arteriovenous malformations (AVMs) is evidence of ruptures. In the present study, the incidence of mass effect in clinically unruptured AVMs was evaluated, and the underlying causative factors and pathophysiological mechanisms were studied. METHODS: Twenty-seven patients with clinically unruptured supratentorial pial ...
Yang T F - - 1997
The presence of clinical autonomic dysfunction in patients with neurologic diseases, such as multiple sclerosis, Parkinson's disease, and cerebrovascular accident, has become increasingly recognized in the past decade. Very few autonomic tests have been done on pediatric patients thus far. The purpose of this study was to investigate the autonomic ...
Tomita H - - 1997
The relationship between traumatic extra-axial hematomas and cerebral atrophy was investigated in 42 adult patients aged between 15 and 50 years who required removal of extra-axial hematomas. These patients were followed up by serial computed tomography for more than 6 months after head injury. Nine of these patients developed cerebral ...
Seki Y - - 1997
To evaluate the clinical implications of soluble thrombomodulin and lipoprotein (a) [Lp(a)] in patients with cerebral thrombosis, these parameters were measured in the plasma of 28 patients with cerebral thrombosis within 3 days of onset, 36 with cerebral thrombosis more than 1 month after onset, six with cerebral hemorrhage more ...
Ikezaki K - - 1997
To both clarify the current clinico-epidemiological features of Moyamoya disease in Korea as well as compare these cases with Japanese patients, 451 cases were collected from 26 Korean major neurosurgical institutes and 296 definite cases were analyzed statistically. Although the Korean age distribution patterns of Moyamoya disease showed two peaks, ...
Kuwabara Y - - 1997
We studied the cerebral blood flow (CBF), cerebrovascular response to hypercapnia, oxygen extraction fraction (OEF), metabolic rate for oxygen (CMRO2), blood volume (CBV) and transit time (TT: CBV/CBF) in Moyamoya disease using positron emission tomography (PET). The subjects consisted of 23 patients with Moyamoya disease, including eight pediatric and 15 ...
Oshima H - - 1997
The jugular bulb oxygen saturation (SjO2) and end-tidal carbon dioxide (ETCO2) were monitored continuously during surgery in six cases of Moyamoya disease who had demonstrated multiple episodes of transient ischemic attacks (TIAs) and/or fluctuating neurological deficits preoperatively. The arterial carbon dioxide tension (PaCO2) levels were also measured repeatedly at predetermined ...
Gillams A R - - 1997
PURPOSE: To establish the frequency, distribution, and pathogenesis of cerebral infarction as confirmed with MR imaging in a cohort of patients with acquired immunodeficiency syndrome (AIDS). METHODS: We reviewed all (71) abnormal cranial MR studies obtained at our institution in human immunodeficiency virus (HIV)-positive patients over a 2-year period and ...
Frizzell R T - - 1997
BACKGROUND: Terson's syndrome (vitreous hemorrhage) and other ocular hemorrhages (retinal hemorrhages) have been reported to occur in up to 40% of patients with ruptured cerebral aneurysms. Because microsurgical vitrectomy can safely restore vision in patients with visual loss secondary to Terson's syndrome, we hypothesized that prospectively screening a selected group ...
van den Berg E - - 1997
Recurrent thrombo-embolism represents by far the commonest cause of cerebral and retinal ischaemia. In an open clinical study, experience with a largely general anticoagulation in the acute phase of cerebral and retinal ischaemia is reported. From October 1993 to October 1996, 781 patients with acute cerebral ischaemia were admitted to ...
Malisch T W - - 1997
A prospective study was designed to evaluate clinical outcome in a series of 100 consecutively treated patients who underwent endovascular embolization of 104 intracranial aneurysms using Guglielmi detachable coils (GDCs). Midterm clinical outcome (2-6 years, average 3.5 years) was obtained for 94 patients and was classified according to a modified ...
Neau J P - - 1997
Between 1984 and 1994, of the 375 patients admitted to our department for intracerebral hemorrhage (ICH), 24 (6.4%) had a recurrent ICH. There were 15 women and nine men and the mean age of the patients was 64.7 +/- 9.4 years (range 49-81) at the first bleeding episode and 68.7 ...
Beritashvili N - - 1997
Blood rheological properties were examined in patients before, during and after neurosurgical operations of arterial aneurisms, as well as in patients where no operation was carried out, and in healthy volunteers. Erythrocyte aggregability was quantified by using the "Georgian technique" and compared with other indices of blood rheological disorders. Prior ...
Kamba M - - 1997
Repeated apneic episodes during sleep may lead to cerebral damage in patients with obstructive sleep apnea (OSA). We performed proton magnetic resonance (MR) spectroscopic studies to examine cerebral metabolism in patients with OSA. We studied 15 healthy subjects and 23 patients with OSA who displayed no anatomical abnormalities on MR ...
Schwab S - - 1997
Barbiturates are administered in a variety of clinical conditions to control elevated intracranial pressure (ICP). However, their routine use to treat elevated ICP has been questioned because it may cause severe side effects. We therefore investigated the effect of high-dose barbiturate therapy on ICP and outcome in patients with severe ...
Lee K C - - 1997
To formulate treatment strategies for poor-grade patients after aneurysmal subarachnoid hemorrhage (SAH), medical records were analyzed for 166 patients who were in Hunt and Hess Grade IV or V among 588 consecutive cases with ruptured intracranial aneurysm admitted during the past 5 years. Causes of unfavorable outcome (poor or dead) ...
Spruit M - - 1997
In a retrospective study of 12 cerebral palsy patients with 17 hips treated for subluxation, clinical and radiographic results of psoas and adductor releases were reviewed. With an average follow-up of 4.05 years, the functional ability was improved in 3 spastic quadriplegics and 3 diplegics and maintained in 6 other ...
Radhakrishnan D - - 1997
Nimodipine is widely used in patients with aneurysmal subarachnoid haemorrhage for the prevention and treatment of delayed ischaemic neurological deficits. Intravenous nimodipine has significant vasodilatory properties and may compromise the achievement of haemodynamic targets in patients who receive hypertensive hypervolaemic haemodilution therapy. We have studied 22 patients who received postoperative ...
Woo M H - - 1997
Hyponatremia, natriuresis, and a decrease in plasma volume of greater than 10% occurs in approximately 50% of the patients with aneurysmal SAH, perhaps due to SIADH and CSWS. However, fluid restriction, as indicated in SIADH, might result in vasospasm and cerebral infarction in these patients. Maintaining intravascular volume seems to ...
Mennemeier M - - 1997
Thirty-one right-hemisphere lesioned (RHL) patients, 11 left-hemisphere lesioned patients (LHL) and 10 normal controls (NC) bisected lines in three spatial location and four directional cuing conditions. The error direction and error size were analyzed as separate and combined variables. Seventy-seven percent of RHL patients and 45% of LHL patients made ...
Enblad P - - 1997
OBJECTIVE: To analyse the occurrence and influence on outcome of secondary brain insults during neurointensive care of patients with subarachnoid haemorrhage. METHODS: Sixty one seriously ill patients with subarachnoid haemorrhage with a poor neurological grade, acute hydrocephalus, or intraventricular and/or intracerebral haemorrhages, who were referred as emergency cases to the ...
Firlik A D - - 1997
In this study the authors have examined the effects of transluminal angioplasty on cerebral blood flow (CBF) in the management of intractable vasospasm following aneurysmal subarachnoid hemorrhage (SAH). Fourteen consecutively enrolled patients underwent attempted angioplasty with or without intraarterial infusion of papaverine. Twelve patients underwent pre- and postangioplasty xenon-enhanced computerized ...
Moazami N - - 1997
The incidence of clinically significant thromboembolic events is reported to be as high as 25% in patients with left ventricular assist devices (LVAD). Clinically detectable neurologic deficits resulting from thromboembolic events are reported to occur at a frequency of 0.0056% per patient-month with the Thermo Cardiosystems Heartmate 1000 (Woburn, MA) ...
Otsuki T - - 1997
Multiple cerebral infarctions were observed in a patient with refractory idiopathic thrombocytopenic purpura who was positive for lupus anticoagulant (LAC) when her platelet counts were 2000 microL-1. It is suspected that LAC may have played an important role in the pathogenesis of this patient's cerebral infarctions, although she had severe ...
Fukuchi K - - 1997
This study was designed to elucidate a central type of benzodiazepine (Bz) receptor distribution in patients with Alzheimer's disease using SPECT with [123I]iomazenil (IMZ). METHODS: Eight patients with probable Alzheimer's disease were studied. Benzodiazepine receptor imaging was performed 15 min (early) and 180 min (delayed) after intravenous administration of 167 ...
Korenke G C - - 1997
The cerebral phenotype of X-linked adrenoleukodystrophy (ALD) is a rapidly progressive neurodegenerative disorder characterized by a cerebral inflammatory response and elevated very long-chain fatty acids (VLCFA). Interferon-beta (INFB) is known to suppress the synthesis of tumour necrosis factor alpha and interferon-gamma, which have been reported to be elevated in the ...
Ahn H - - 1997
The technique of cerebral protection during hypothermic circulatory arrest remains controversial. Forty-seven patients underwent operations for type A aortic dissection in the past 9 years. During hypothermic circulatory arrest, selective cerebral perfusion and retrograde cerebral perfusion was applied in 12 and seven patients, respectively. The mortality rate was 28.6% in ...
Kim T - - 1997
The incidence and the risk factors of hemorrhage from gastric fundal varices (FV) have not been fully evaluated. We therefore conducted a retrospective and prospective study to define the incidence and risk factors for such episodes. We investigated 132 patients with cirrhosis and gastric FV. Of these 132 patients, 15 ...
Pezzilli R - - 1997
Serum amylase and lipase were measured in 32 patients with cerebral ischemia, 19 with spontaneous cerebral hemorrhage, 15 with head injury and intracranial bleeding, and 22 with head injury without intracranial bleeding; 20 healthy subjects were also studied as controls. Serum pancreatic isoamylase concentrations were assayed in hyperamylasemic sera. The ...
Ericsson K - - 1997
The safety of the non-ionic contrast medium iopentol (Imagopaque, Nycomed Imaging AS, Oslo, Norway) when used in cerebral angiography and aortic arch angiography, was the focus of this investigation. Overall quality of visualization and changes in heart rate and blood pressure were, however, also assessed. In total, 39 patients were ...
Scolding N J - - 1997
Cerebral vasculitis is a serious but uncommon condition which presents considerable difficulties in recognition, diagnosis and treatment. We studied eight consecutive patients in whom this diagnosis was made. Despite the great diversity of symptoms and signs, we noted three clinical patterns: (i) acute or sub-acute encephalopathy, (ii) a picture with ...
Schmieder K - - 1997
CO2 reactivity was tested in patients with transcranial Doppler sonography (TCD) and endtidal CO2 measurements after an average time interval of ten months after subarachnoid haemorrhage (SAH). After deliberately changing breathing there was a significant change in endtidal CO2 and in flow velocities in all three examination groups. Comparing 27 ...
Picard L - - 1996
Forty-three patients with arteriovenous malformations (AVMs) of the corpus callosum treated by embolization were reviewed. The following clinical and radioanatomic characteristics were found: 84% (36 patients) presented with intracranial hemorrhage, 43% (20 nidi) of the lesions were located in the posterior half of the corpus callosum, multiple nidi were more ...
Kazumata K - - 1996
BACKGROUND AND PURPOSE: The aim of this study was to compare the effect of vasodilative stimuli for the measurement of cerebrovascular reactivity obtained by acetazolamide and hypercapnia in patients with chronic occlusive major cerebral artery disease. METHODS: We examined 24 patients with unilateral occlusive lesions of a major cerebral artery ...
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