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Results 701 - 750 of 980
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Yamasoba T - - 1993
OBJECTIVE: To compare neuro-otological test results in aged patients complaining of dizziness with their magnetic resonance imaging findings. DESIGN: The presence of lacunar infarcts of the hind-brain was used as a gold standard. SETTING: A department of otolaryngology in a regional general hospital. PATIENTS: All patients over 60 years old ...
Hamano S - - 1993
Diaschisis is a functional impairment at a site in the brain remote from the lesion causing it. An investigation of cerebellar diaschisis in childhood was undertaken to better understand the functional maturation of the corticopontocerebellar tract in developing brain. A retrospective study of cerebellar diaschisis in 55 hemiplegic children was ...
Lockwood A H - - 1993
Many patients with compensated cirrhosis without overt hepatic encephalopathy have deficits in visual-spatial perception, a condition we call minimal hepatic encephalopathy. Five patients with alcohol-induced cirrhosis and nine control subjects underwent positron-emission tomographic imaging of the brain with 18F-fluorodeoxyglucose. Patients also underwent neuropsychological and clinical chemistry tests. The patients had ...
Lacquaniti L G - - 1993
Severe brain damage may cause alterations of cardiovascular function: heart rate, particularly, require the integrity of the vagal, sympathetic and central nervous systems. We studied brain-heart functional relation and neurovegetative modulation by spectral analysis of heart rate variability (HRV). This technique allows separate evaluation of the sympathetic and vagal components ...
Streifler J Y - - 1993
We describe brain CT and MRI characteristics of 10 patients with late-onset GM2 gangliosidosis. Cerebellar atrophy, particularly of the vermis, was a prominent feature in all patients with normal-appearing cerebral hemispheres. The severity of these findings did not correlate with the age of onset, disease duration, severity of neurologic impairment, ...
Silverman I E - - 1993
Single-photon emission computed tomography (SPECT) with 99mTc-hexamethylpropyleneamine oxime (HMPAO) was used to investigate changes in cerebral blood flow in seven patients with cortical visual impairment. Traumatic brain injury (TBI) was the cause of cortical damage in two patients, cerebral ischemia in two patients and carbon monoxide (CO) poisoning, status epilepticus ...
Förstl H - - 1993
The performance on four drawing tasks was studied in a sample of patients with verified Alzheimer's disease in order to examine the relationship of 'constructional apraxia' to neuropathological changes in the parietal lobe and in other brain areas. Twenty-three patients were able to attempt to copy pentagons, a spiral and ...
Kondziolka D - - 1993
Stereotactic radiosurgery using the gamma unit has been used to manage patients with brain stem tumors or vascular malformations as an alternative to microsurgical resection. Whether associated with the pial or ependymal brain stem surface or within the brain stem parenchyma proper, radiosurgery provides relatively safe and effective management. Radiosurgery ...
Pirttilä T - - 1993
A quantitative and qualitative analysis was done of 187 CT examinations in 59 healthy subjects and 128 patients with various neurodegenerative diseases. The rates of agreement between quantitative measurements and the qualitative grading by two observers were 76.7% for the evaluation of lateral ventricular size and 66.3% for the assessment ...
Barbiroli B - - 1993
We studied brain energy metabolism by phosphorus magnetic resonance spectroscopy (31P MRS) in 28 patients with mitochondrial cytopathies, and 20 normal control subjects. Fourteen patients had myopathy alone, six had only mild brain symptoms, and eight showed different degrees of brain involvement. Brain 31P MRS showed a low phosphocreatine content ...
Kondo A - - 1993
Capillaries in brain biopsies obtained from patients with globoid cell leukodystrophy (GLD), adreno-leukodystrophy (ALD), Canavan's disease (spongy degeneration) and Alexander's disease were examined ultrastructurally and morphometrically. The numbers of pinocytotic vesicles were significantly increased in capillaries in the white matter of all these patients except for a patient with GLD, ...
- - 1993
The clinical records of patients withdrawn from the UK-TIA Aspirin Trial after identification of a brain tumour were reviewed. Certain features of transient focal neurological dysfunction were associated with an underlying brain tumour rather than transient ischaemia: a) focal jerking or shaking; b) pure sensory phenomena; c) loss of consciousness; ...
Sandel M E - - 1993
The determination of long-term prognosis is one of the most difficult tasks in the management of persons with brain injury (BI). Initial Glasgow Score, duration of coma, brain stem reflexes, and pupillary responses are all clinical findings that have been related to outcome in BI. We describe another easily observable ...
Ueyama K - - 1993
Fourteen chronic schizophrenic patients with tardive dyskinesia (TD) and 13 without TD were given psychological tests and CT scans. The low density rate (LDR), i.e., the ratio of the X-ray absorption (corresponding nearly to that of cerebrospinal fluid) of a brain lesion to the X-ray absorption of the whole brain, ...
Stringer W A - - 1993
PURPOSE: To examine the possibility that hyperventilation, commonly used to prevent or treat increased intracranial pressure in patients with acute brain lesions, may induce significant cerebral ischemia. METHODS: Local cerebral blood flow and vascular reactivity were measured before and after hyperventilation using xenon-enhanced CT in 12 patients with acute brain ...
Pittella J E - - 1993
A histopathological and immunohistochemical study of the brain and heart was made in 50 patients with the chronic cardiac form of Chagas' disease. The immunohistochemical technique used was the peroxidase-antiperoxidase method adapted for the demonstration of the T. cruzi amastigotes. Histological and immunohistochemical examination of the brain showed encephalitis in ...
Barkovich A J - - 1993
PURPOSE: To describe the imaging features of a brain anomaly found on studies of three patients, and to speculate on the embryologic basis leading to the development of this abnormality. PATIENTS AND METHODS: Clinical records (three patients), MR scans (two patients), and CT scans (two patients) of three patients with ...
Scao Y L - - 1993
Brain activation procedures associated with single photon emission computed tomography (SPECT) recently have been developed in healthy controls and in diseased patients to help in their diagnosis and treatment. We investigated the effects of an electrical stimulation of the auditory nerve on the cerebral distribution of 99mTc-HMPAO in seven profoundly ...
Trojano L - - 1993
We aimed to ascertain whether non-apraxic, focal brain-damaged patients used abnormal constructional procedures. We tested a series of consecutive patients, classified according to lesion locus and side against a matched sample of normal volunteers. Subjects had to copy the Rey-Osterreith Figure, a complex and structured item that explores copying strategies. ...
Blonder L X - - 1993
Most studies of facial expressivity in patients with focal brain lesions have examined the ability to produce emotional expression in laboratory settings using various experimental paradigms. In this study, we compared facial expressivity in right hemisphere damaged patients (RHD), left hemisphere damaged patients (LHD), and normal controls (NHD) during videotaped ...
Nowacki P - - 1993
The frequency and distribution of intravascular coagulation (IVC) were studied in brains of 121 patients who had died due to acute myeloblastic leukemias type M1 or M2. The IVC within the brain was observed in 59% of cases, more frequently in patients treated with polychemotherapy, especially according to TAD or ...
Akopov S - - 1993
Blood and plasma from 193 patients at risk of cerebrovascular disorders and 87 patients with brain infarction were tested to study prostacyclin (PGI2) degradation. It has been reported that patients at risk for cerebrovascular disorders and especially with brain infarction have an enhanced velocity of PGI2 degradation. The increase in ...
Morimoto Y - - 1993
OBJECTIVES: First, to examine factors that may be related to brain swelling, which was identified by the absence or compression of the lateral and third ventricles and perimesencephalic cisterns on brain computed tomography (CT) scans in the early postresuscitation period in patients who suffered an out-of-hospital cardiac arrest. Second, to ...
O'Callaghan C C - - 1993
Language is mainly a function of the left hemisphere of the brain; music is mainly a function of the right hemisphere. Using language and music together therapeutically with brain-impaired patients offers a greater chance of activating intact neurological pathways than using language alone. Music therapy also offers an alternate and ...
Sandel M E - - 1993
Antipsychotic agents, most often used for treatment of schizophrenia, are sometimes prescribed for the agitated patient with an organic brain disorder. We report the case of a brain-injured patient who was prescribed chlorpromazine for agitation and who developed a delusional state while taking this antipsychotic agent. The emergence of this ...
Provinciali L - - 1993
To assess the influence of contrast medium on cortical function, we studied 20 patients undergoing lumbar myelography with iopamidol and 10 patients undergoing diagnostic lumbar puncture (controls). The examinations performed before and 6 and 24 h after myelography (or lumbar puncture) included a neuropsychological battery and an electrophysiological evaluation. In ...
Mattingley J B - - 1992
Patients with unilateral neglect may exhibit slowness in the initiation of contralesionally directed movements in peripersonal space (directional hypokinesia). The present study used a sequential movement task to characterize any such impairment in a group of 24 patients with right hemisphere lesions, 18 of whom had left neglect. A further ...
Sébire G - - 1992
We report six previously healthy children who several days after a prodromal illness had an acute encephalopathy that ran a biphasic course. It appears to constitute a recognizable syndrome with a good prognosis that can be differentiated from other encephalopathies of obscure origin as previously defined by Lyon et al. ...
Grau C - - 1992
BACKGROUND: The study evaluated the incidence and severity of brain stem myelopathy occurring after radiation exposure in a cohort of patients who received external radiation exposure for nasopharyngeal carcinoma (NPC). METHODS: Brain stem function was investigated by auditory brain stem responses (ABR). RESULTS: Four of 21 patients who could be ...
Souberbielle B E - - 1992
Serum samples from patients suffering from multiple sclerosis, other neurological diseases and normal controls were screened by "western blotting" for antibody directed against proteins of human brain vessels purified from a post mortem brain. A small number of sera contained autoantibodies against some of the proteins of the brain vessels, ...
Starkstein S E - - 1992
BACKGROUND AND PURPOSE: Psychological and biological hypotheses have been proposed to explain anosognosia. We correlated the presence of anosognosia with the presence and severity of psychiatric disturbances, neglect, intellectual impairments, and computed tomographic evidence of lesion size, location, and measurements of brain atrophy. METHODS: A series of 80 patients with ...
Kobayashi T - - 1992
By using a sensitive method, we assayed lysocompounds of gangliosides and asialogangliosides in tissues from four patients with GM2 gangliosidosis (one with Sandhoff disease and three with Tay-Sachs disease) and from three patients with GM1 gangliosidosis [one with infantile type (fetus), one with late-infantile, and one with adult type]. In ...
Steinberg A - - 1992
Sixteen patients with ocular criteria of Leber congenital amaurosis (LCA) were studied. Neurological examination was normal in 11 of 16 patients. The electroencephalogram was normal in six of eight patients, while two had nonspecific theta slowing. Computerized tomography of the brain was normal in two of five; hypoplasia of the ...
Anson J A - - 1992
Because of the high incidence of neurological complications seen in patients with acquired immunodeficiency syndrome (AIDS), an increasing number of these cases are being referred to neurosurgeons for consideration of intracranial biopsy. To better determine the need for biopsy in these patients we evaluated the accuracy of non-tissue-based neurological diagnoses ...
Guttman M - - 1992
To determine if 3-O-methyldopa (3OMD) significantly inhibits the transport of 6-[18F]fluorodopa (6-FD) into the brain at the concentration normally encountered during L-dopa administration, we performed 6-FD studies with positron emission tomography in cynomolgus monkeys in the presence and absence of 3OMD. Infusion of 3OMD was designed to produce plasma concentrations ...
Dusleag J - - 1992
Twenty patients with idiopathic dilated cardiomyopathy (IDC) aged less than 50 years (mean 41) and an age-matched group of 20 healthy volunteers were studied. All subjects were free of cerebrovascular symptoms and risk factors for stroke. Magnetic resonance imaging of the brain, extracranial Doppler ultrasonography, heart catheterization and echocardiography were ...
Tien R - - 1992
PURPOSE: Severe hyponatremia is often associated with permanent brain damage. There has been substantial controversy about whether central pontine myelinolysis (CPM), a rare neurologic disorder of uncertain etiology, can complicate either hyponatremia or its therapy. This study was undertaken to determine how often hyponatremic patients with the clinical diagnosis of ...
Samuels M A - - 1992
Diagnosis of coma in the unresponsive patient can be done in a relatively short time by making key observations that will confirm disease of either the brain stem or the hemispheres, the two locations in which coma originates. Determining the location of the lesion is the primary goal in early ...
Mandal M K - - 1992
Patients with focal brain-damage, right or left hemisphere-damage (RHD/LHD) and anterior or posterior region-damage (ARD/PRD), and normal controls (NC) were asked to match the photographs of (left-right) hemifacial expressions of emotions, positive (happy-surprise), negative-aroused (fear-anger), negative-nonaroused (sad-disgust). Findings indicated that (a) NC subjects were significantly superior to brain-damaged patients; the ...
Reider-Groswasser I - - 1992
Computed tomographic (CT) scans of 32 children (mean age 2.8 +/- 2.5 years) with a wide range of craniocerebral asymmetry (CCA) were analyzed. Hemiparesis and epilepsy were the main clinical presentations. Two-thirds of the patients had brain infarcts. The degree of cerebral and ventricular asymmetry was evaluated by ratios obtained ...
De Renzi E - - 1992
The grasp reflex and related prehensile phenomena were investigated in two studies. In Study 1, 491 patients consecutively admitted to the neurological wards of our department were tested with a standardized procedure. Grasping was found in 8% of brain-damaged patients and occurred predominantly in patients with single (14 cases) or ...
Raymond P L - - 1992
The case of a patient with metastatic ileal carcinoid is reported. The peculiarities of this case were as follows: 1) The patient presented with symptoms attributable to a mass lesion in the brain which was proven to be a carcinoid tumor by biopsy. 2) The patient had symptoms attributable to ...
Pirttilä T - - 1992
The aim of this study was to analyze the possible association of the changes in systemic immunity in the neurodegenerative diseases and in brain atrophy per se. Therefore we enumerated the numbers and proportions of the CD3-, CD4- and CD8-positive cells and B-lymphocytes in peripheral blood of 136 patients with ...
Kokodoko A D - - 1992
The authors subjected 66 patients suffering from COBP with chronic respiratory insufficiency (22 with EGA values within standard limits, 44 with irregular PO2 and PCO2 values) to an electroencephalography with BEAM (brain electrical activity mapping). In the absence of clinically noticeable symptoms or neurologic signs of central type, more than ...
Okada Y - - 1992
BACKGROUND AND PURPOSE: The benefits and safety of thrombolytic therapy was studied in patients with acute brain embolism. METHODS: We intravenously administered recombinant tissue plasminogen activator (20-30 MU for 1 hour) to 10 patients with acute (less than 6 hours) brain embolism and examined the neurological outcomes in relation to ...
Trost H A - - 1992
108 Patients with severe brain damage were examined for the course of plasma osmolality. In addition plasma values of Na+, K+, glucose and blood urea nitrogen (BUN) were measured simultaneously by auto-analyzer. The clinical status was registered daily by using a modified Glasgow coma scale. Outcome of the injured patients ...
Hayashi M - - 1991
From 1980 to 1989, during intracranial pressure (ICP) recording, brain herniation (central transtentorial herniation associated with uncal herniation) developed in 15 patients as a result of aneurysmal rebleeding, uncontrollable brain swelling and/or oedema in spite of attempts at treating increased ICP. The relationship between the ICP level at which herniation ...
Qin Z - - 1991
In examining the ability of patients with unilateral brain lesion to copy simple drawings of a house and a human face, 18 apoplectic patients confirmed by CT scanning were studied. We found that their drawing of a house was inferior to that of a face in 19 tests (90.5%) of ...
Lenti C - - 1991
Tactile extinction was investigated by the Quality Extinction Test (QET) of Schwartz in 39 patients, 34 of whom had congenital hemiplegia and five early-acquired hemiplegia. Extinction values were significantly higher in hemiplegia patients than in controls and usually contralateral to the side of brain damage, except for four cases with ...
Barkovich A J - - 1991
Clinical data and magnetic resonance imaging scans from 10 patients with lissencephaly were reviewed. Although 6 of the 10 patients were less than 1 year old at the time of their most recent examination, those who were old enough for developmental assessment were, with a single exception, severely developmentally delayed. ...
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