Search Results
Results 501 - 550 of 995
< 6 7 8 9 10 11 12 13 14 15 16 >
Ergene E - - 2000
The authors compared the frequency of paranasal sinus inflammatory changes (SIC) on brain magnetic resonance imaging (MRI) obtained from 23 patients with new onset acute optic neuritis (ON) and 48 control patients who underwent outpatient MRI of the brain for reasons other than ON. The authors found a higher frequency ...
Rollins N - - 2000
OBJECTS: Foramen magnum and jugular foramen stenosis, well-known problems in achondroplasia, may result in brain stem compression and venous outflow obstruction, respectively. We studied a series of children with achondroplasia using gated cine phase contrast (PC) CSF flow studies to evaluate CSF dynamics across the foramen magnum and MR venography ...
Prieto-Rincón D - - 2000
We carried out brain tomography of 27 patients with schizophrenia and 17 normal control subjects. DSM-IV criteria were used for diagnosis. The parameters studied were: brain volume, lateral and third ventricles, brain surface and brain indexes. Previously the patients were evaluated with the following clinical scales: Positive and Negative Syndrome ...
Jurado M A MA Departament de Psiquiatria i Psicobiologia Clínica, Facultat de Psicologia, University of Barcelona, Spain. - - 2000
The purpose of this study was to investigate the effect of focal frontal lesions, identified by magnetic resonance imaging (MRI), in a group of traumatic brain injured (TBI) patients, in order to clarify the sensitivity of phonemic and semantic fluency tasks as tests of frontal lobe functioning. Thirteen TBI patients ...
Sbordone R J - - 2000
Cognitive and neurobehavioral symptoms are common following traumatic brain injuries (TBIs). Because malingerers are likely to complain of such symptoms and perform poorly on neuropsychological tests, clinicians may have considerable difficulty distinguishing malingerers from TBI patients. In this study, we compared the subjective complaints of malingerers to TBI patients and ...
Küçük N O - - 2000
This study evaluates brain perfusion in long-term inhalant abusers of toluene, acetone, benzene and derivatives. Ten patients in the age range 16-18 years (mean, 17.3+/-0.67 years), who had been inhalant dependent for a mean period of 48.3+/-6.2 months, but who had stopped using inhalants for 1-11 months (mean, 5.4+/-2.1 months), ...
Newberg A B - - 2000
Progressive aphasia is a prominent clinical feature of several neurodegenerative disorders. This study used hexylmethylpropylene amineoxine (HMPAO) single photon emission computed tomography (SPECT) to estimate blood flow in areas of the brain that mediate language in patients with progressive aphasia and matched control subjects. The patient population consisted of four ...
Becker R - - 2000
Sympathetic storm phenomena are well known therapeutic problems in patients with severe brain injury. We have treated four patients with intrathecal baclofen (ITB) who suffered from severe hypertension, tachycardia and other sympathetic storm phenomena after different primary events. In all patients conventional therapy with sedatives and antiadrenergic medication had been ...
El-Kashlan H K - - 2000
OBJECTIVE: The auditory brain stem response (ABR) has been criticized recently as an insensitive measure for the detection of small acoustic neuroma (AN). This study was undertaken to evaluate our experience with the efficacy of ABR in detection of small tumors. STUDY DESIGN: Retrospective case review. Twenty-five patients with surgically ...
Caporali A - - 2000
Acalculia is a frequent disorder in left-brain-damaged patients but nothing is known about its natural course. We report a study on 51 vascular acalculic patients examined at least twice. Our results indicate that recovery from acalculia is possible in the first months post-stroke, that initial severity does not significantly influence ...
Blomhoff S - - 2000
We studied differences in rectal tone between healthy controls, nonpsychiatric irritable bowel syndrome (IBS) patients, and IBS patients with comorbid phobic anxiety disorders to assess the impact of psychiatric comorbidity on rectal tone. The groups were additionally compared with respect to brain information processing of everyday words with emotional content ...
Rao G M - - 2000
Erythrocyte antioxidant enzymes were analysed in 100 patients with intracranial neoplasm and in 47 controls. There was a significant decrease in RBC glutathione reductase (GRx) and superoxide dismutase (SOD) activity in most types of brain tumor cases. Patients with acoustic neurinoma showed a significant reduction in selenium-dependent glutathione peroxidase (Se-GPx) ...
Saad E D - - 2000
Progressive multifocal leukoencephalopathy (PML) is a demyelinating infectious disease caused by the JC virus. It was originally described in patients with chronic lymphocytic leukemia (CLL). Richter's syndrome, or transformation to large cell Lymphoma, occurs in approximately 3% of patients with CLL, and carries a poor prognosis. We report a patient ...
Yen T C - - 2000
The aim of this study was to use 99mTc-TRODAT-1 brain SPECT for investigation of the binding of dopamine transporter (DAT) in the nigrostriatal dopaminergic pathway of symptomatic Machado-Joseph disease (MJD) and to compare the results with the abnormal cytidylate, adenylate, and guanylate (CAG) expansion in the MJD1 gene and other ...
Yoshimitsu T - - 2000
BACKGROUND: It has been found that brain atrophy develops more rapidly in patients with end-stage renal failure after initiation of dialysis therapy. The present study was designed to analyze the relationship between brain atrophy and asymptomatic ischemic brain lesions. PATIENTS AND METHODS: Magnetic resonance imaging (MRI) was performed for the ...
Rombouts S A - - 2000
In patients with Alzheimer's disease, substantial tissue loss occurs in the medial temporal lobe. In this study, we applied a voxel-based, unbiased whole-brain analysis method to compare magnetic resonance imaging scans of seven patients with Alzheimer's disease and seven healthy elderly controls. Images were transformed to standard coordinate space and ...
Thomson A D - - 2000
The classic signs of vitamin deficiency only occur in states of extreme depletion and are unreliable indicators for early treatment or prophylaxis of alcoholic patients at risk. Post-mortem findings demonstrate that thiamine (vitamin B1) deficiency sufficient to cause irreversible brain damage is not diagnosed ante mortem in 80-90% of these ...
Skiest D J - - 2000
OBJECTIVE: To determine the utility of brain thallium-201 single photon emission computerized tomography (Tl-201 SPECT) combined with Toxoplasma serology for the diagnosis of focal CNS lesions in patients with AIDS. METHODS: Sixty-one consecutive HIV-infected patients with focal CNS lesion(s) on head computed tomography (CT) or MRI scan who underwent brain ...
Goh K J - - 2000
BACKGROUND: Between September 1998 and June 1999, there was an outbreak of severe viral encephalitis due to Nipah virus, a newly discovered paramyxovirus, in Malaysia. METHODS: We studied the clinical features of the patients with Nipah virus encephalitis who were admitted to a medical center in Kuala Lumpur. The case ...
Ezzeddine M A - - 2000
Cholesterol emboli (CE) to the brain are an important but often unrecognized cause of stroke. The authors reviewed 29 cases of brain CE identified on autopsy. Most patients were elderly (mean age, 74 years) and presented with encephalopathy and acute renal failure. Ten patients developed symptoms spontaneously, 19 after a ...
Malone S - - 2000
PURPOSE: Radiosurgery is an effective treatment for arteriovenous malformations (AVM) with a low risk of developing brain necrosis. Models have been developed to predict the risk of complications. We postulated that genetic differences in radiosensitivity may also be a risk factor. METHODS AND MATERIALS: Fibroblast cultures were established from skin ...
Atre-Vaidya N - - 2000
OBJECTIVE: In this case study, the significance of perfusion abnormalities in catatonia is examined. BACKGROUND: Recurrent catatonic symptoms are frequently observed in psychiatric disorders, but the predictors of relapse of the catatonic symptoms remain unknown. Perfusion abnormalities have been reported during catatonic states; however, little is known about brain functioning ...
Basso A - - 2000
The paper reports the performance of 50 left- and 26 vascular right-brain-damaged (LBD, RBD) patients in the EC301 Calculation Battery, which explores different aspects of number and calculation processing. All patients underwent a comprehensive neuropsychological testing that also included evaluation for the presence and type of aphasia in LBD patients, ...
Yu P L - - 2000
The clinical experience with a new fluid therapy in children with acute brain edema complicated by infectious disease is reported. The clinical data of a retrospective group of 192 patients and a prospective study of 1,302 and 2,279 patients is summarized. One method of fluid therapy for children with acute ...
Gomez-Angel D - - 2000
Among other tests, craniocorpography (CCG) was performed in 21 patients after acoustic neurinoma surgery. After surgery, 17 patients (81%) had a developing vestibular compensation or an already normal CCG pattern; 3 patients (14%) had signs of persisting central nervous system dysfunction, either localized to the brain stem or in combination ...
Crevits L - - 2000
The most common site of focal lesions after mild traumatic brain injury (MTBI) is the frontal lobe. This lobe, however, is difficult to examine clinically. Neuroimaging is not performed routinely and usually shows normal results in uncomplicated trauma. Antisaccades (AS) and remembered saccades (RS) are neuro-ophthalmological tests of frontal function. ...
al-Essa M A - - 2000
The clinical, biochemical, and neuroradiologic findings and clinical follow-up of seven patients with glutaric aciduria type II are reported. Three phenotypes of the disease are encountered: neonatal-onset form with congenital anomalies (two patients) or without congenital anomalies (three patients) and late-onset form (two patients). The neonatal-onset form presents as an ...
Lim C C - - 2000
BACKGROUND AND PURPOSE: An epidemic of suspected Japanese encephalitis occurred in Malaysia in 1998-1999 among pig farmers. In neighboring Singapore, an outbreak occurred among pig slaughterhouse workers. It was subsequently established that the causative agent in the outbreak was not the Japanese encephalitis virus but a previously unknown Hendra-like paramyxovirus ...
Van Hove J L - - 2000
We present four patients with typical neonatal onset non-ketotic hyperglycinemia (NKH) who developed hydrocephalus requiring shunting in early infancy. Brain imaging revealed acute hydrocephalus, a megacisterna magna or posterior fossa cyst, pronounced atrophy of the white matter, and an extremely thin corpus callosum in all. The three older patients had ...
Jacquemin C - - 2000
PURPOSE: To better describe the clinical and neuroimaging spectrum of abnormalities in clinical anophthalmos. METHODS: We performed a retrospective review of all 17 patients admitted to the King Khaled Eye Specialist Hospital with clinical anophthalmos over a 15 year period who had a complete ophthalmological examination documented and received computed ...
Rovaris M - - 2000
OBJECTIVE: Magnetisation transfer imaging (MTI) provides information about brain damage with increased pathological specificity over conventional MRI and detects subtle abnormalities in the normal appearing brain tissue, which go undetected with conventional scanning. Brain MRI and MTI findings were compared in patients with multiple sclerosis (MS) and systemic immune mediated ...
Seki K - - 2000
Cube-copying is often used to assess constructional ability of brain-damaged patients and the influence of unilateral spatial neglect is often pointed out in patients with right hemisphere lesions. However, some patients with severe neglect perform cube-copying satisfactorily. The aim of the present study is to identify the factors that affect ...
Al-Essa M A - - 2000
OBJECTIVES: To evaluate the clinical, biochemical, neuroradiological, and neurophysiological findings of patients with X-linked adrenoleukodystrophy. METHODS: Retrospective study evaluating the data of 10 X-linked adrenoleukodystrophy patients diagnosed at King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia. RESULTS: The common presenting symptoms were deterioration in school performance, vision and ...
Gauggel S - - 2000
Little is known about the impact of feedback on the reaction times (RTs) of brain-damaged (BD) patients. The authors therefore investigated the effect of positive and negative feedback on these patients, using a 4-choice RT task. Participants were 107 BD patients with different etiologies and 50 orthopedic (OG) control patients. ...
Yamamoto T - - 2000
Deep brain stimulation (DBS) has been applied mainly for the treatment of intractable pain and involuntary movement disorders. Based on the rising numbers of patients undergoing DBS therapy, the possibility of emergent application of cardioversion for the treatment of occasional severe arrhythmia in DBS patients has also increased. However, there ...
Langham J - - 2000
Acute traumatic brain injury is a major cause of death and disability. Calcium channel blockers have been used in an attempt to prevent cerebral vasospasm after injury, maintain blood flow to the brain and so prevent further damage. To estimate the effects of calcium channel blockers in patients with acute ...
Meyers J E JE Mercy Rehabilitation Clinic, Suite 340, 500 Jackson Street, Sioux City, IA 51101, USA. - - 2000
The Sentence Repetition test (SR) has been used to assess aphasic and other patients in neuropsychological settings. SR has been shown to be reliable and valid, as well as sensitive to patients with brain injury. This study was conducted to update the normative data for the SR. Sensitivity and specificity ...
Ohara K - - 1999
Magnetic resonance spectroscopy (MRS) is a safe and non-invasive technique for the in vivo study of brain chemistry and metabolism. As such, it is highly applicable to the study of living brain tissue in psychiatric diseases. Several neuropathological and neuroimaging studies have suggested that abnormalities of the basal ganglia nuclei ...
Ruff R M RM Department of Neurosurgery and Psychiatry, University of California, San Francisco, USA. - - 1999
Discrepant criteria are utilized by various disciplines for the diagnosis of mild traumatic brain injury (TBI). This study evaluates 76 patients, all of whom were diagnosed as having sustained a mild TBI according to the diagnostic criteria set forth by the American Congress of Rehabilitation Medicine (ACRM); yet only 34% ...
Kriegstein A R - - 1999
BACKGROUND: Inhalation of heated heroin vapor ("chasing the dragon"), which is gaining popularity among drug users seeking to avoid the risks of parenteral drug administration, can produce progressive spongiform leukoencephalopathy. METHODS: We studied the clinical phenotype and course, MRI, MRS, and brain pathology in the first American patients described with ...
Iverson G L - - 1999
The Controlled Oral Word Association Test (COWAT) is widely used in clinical neuropsychology as a measure of verbal fluency. It is important for psychologists to realize that using the recently published normative data will result in different clinical conclusions because the updated normative sample performed better than the original normative ...
Levy L M - - 1999
The stiff-person syndrome, a rare and disabling disorder, is characterized by muscle rigidity and episodic spasms that involve axial and limb musculature. Continuous contraction of agonist and antagonist muscles caused by involuntary motor-unit firing at rest are the hallmark clinical and electrophysiologic signs of the disease. Except for global muscle ...
Cicero B A - - 1999
OBJECTIVE: This study examined lexical emotional perception in patients with unilateral brain damage. BACKGROUND: Hypotheses pertaining to laterality and emotion were tested. More specifically, we were interested in whether the right hemisphere is dominant for verbally-presented emotion. In addition, we examined whether emotional content improves the performance of patients with ...
Postert T - - 1999
OBJECTIVES AND METHODS: Transcranial real time sonography (TCS) was applied to 49 patients with Huntington's disease and 39 control subjects to visualise alterations in the echotexture of the basal ganglia. For comparison T1 weighted, T2 weighted, and fast spin echo MRI was performed in 12 patients with Huntington's disease with ...
Meola G - - 1999
OBJECTIVE: To compare brain involvement in myotonic dystrophy (DM) with that of proximal myotonic myopathy (PROMM). BACKGROUND: PROMM is a multisystem disease with many features in common with DM. METHODS: Twenty patients with DM (CTGF[500-700), 20 patients with PROMM, and 20 normal control subjects were studied. Neuropsychological testing was performed ...
Baskin D S - - 1999
OBJECTIVE: To determine whether higher brain levels of choline acetyltransferase (ChAT) are associated with improved neuropsychological function in patients with Alzheimer disease (AD). DESIGN: Case series with single-blind post hoc analysis of biopsy specimens. SETTING: Urban hospital and medical school. PATIENTS: A consecutive sample of 8 patients with AD undergoing ...
Bitzani M - - 1999
OBJECTIVE: To evaluate resting energy expenditure (REE) in brain dead patients and to investigate the hypothesis that the reduction in REE results from a decrease in cerebral blood flow. DESIGN: Prospective, open labeled, control study. SETTING: General intensive care unit of a tertiary referral teaching hospital. PATIENTS: 30 critically ill ...
Etchebehere E C - - 1999
Olanzapine, an atypical antipsychotic drug, was administered to a patient with Huntington's disease (HD) with marked choreiform movements. Brain SPECT with 99mTc-HMPAO was performed before and after treatment. Brain SPECT imaging has been performed in patients with HD in order to determine the status of basal ganglia perfusion. The use ...
O'Riordan J I - - 1999
Post infectious encephalomyelitis and multiple sclerosis are both inflammatory demyelinating disorders of the central nervous system. Whereas multiple sclerosis is a multi phasic disease with recurrent episodes disseminated in time and place, post infectious encephalomyelitis is usually considered to be a monophasic illness. This study used serial brain MRI to ...
Hadani M - - 1999
OBJECTIVE: To determine the clinical validity of transcranial Doppler ultrasonographic (TCD) signs of total cerebral circulatory arrest for confirmation of brain death and to define the test protocol. DESIGN: Study of a diagnostic test. SETTING: General and neurosurgery intensive care units. PATIENTS: 137 patients in a coma (Glasgow Coma Score ...
< 6 7 8 9 10 11 12 13 14 15 16 >