Search Results
Results 401 - 450 of 912
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Laederach-Hofmann K - - 1999
Patients with diabetes mellitus (DM) often have alterations of the autonomic nervous system (ANS), even early in their disease course. Previous research has not evaluated whether these changes may have consequences on adaptation mechanisms in DM, e.g. to mental stress. We therefore evaluated whether patients with DM who already had ...
Pai M C - - 1999
BACKGROUND: Transient global amnesia (TGA) is a syndrome characterized by an abrupt onset of severe anterograde amnesia and variable retrograde amnesia, usually accompanied by repetitive query during the attack. Its etiology is unknown. METHODS: We retrospectively studied patients who were admitted to National Cheng Kung University Hospital during, or just ...
Kaplan P W - - 1999
OBJECTIVE: To determine the factors affecting prognosis in alpha coma (AC). METHODS: Retrospective review of 36 study patients, 36 control coma patients matched for age and etiology, and meta-analysis of 335 cases in the world literature. RESULTS: Principal causes were cardiorespiratory arrest (CRA) (21 patients); infection, metabolic dysfunction, head trauma ...
Scott C A - - 1999
When considering surgery for intractable partial seizures, even with high resolution MRI, some patients do not show structural abnormalities. The aim was to consider whether these patients were likely to proceed to surgical treatment after scalp video-EEG telemetry. All patients undergoing presurgical evaluation at the National Hospital for Neurology and ...
Chayasirisobhon S - - 1999
We studied the interictal EEG of 50 epileptic patients (28 males, 22 females) who had parenchymal neurocysticercosis, diagnosed by CAT/MRI of the brain, positive immunological reaction for cysticercosis in cerebral spinal fluid or both. Age ranged from 5 to 61 years old; the mean age of onset was 24.2 +/- ...
da Silva E A - - 1999
PURPOSE: Intermittent photic stimulation (IPS) is an activation procedure used during electroencephalogram (EEG) recording to elicit paroxysmal discharges in individuals with photosensitivity. Specific responses on EEG recording may be provoked by IPS at different frequencies of flickering in normal individuals and in patients with photosensitive epilepsy. METHODS: Changes in regional ...
Liscić R M - - 1999
A 37-year-old patient with Creutzfeldt-Jakob disease (CJD) is presented, who had received a cadaveric dura matter graft 12 year before the onset of neurologic symptoms. Initial clinical presentation included cerebellar symptoms, with dementia and myoclonus developing in later stages of the disease. EEG showed diffuse slowing with sporadic triphasic periodic ...
Brodtkorb E - - 1998
OBJECTIVES: Widespread use of MRI now gives us increased insights into the different expressions of malformations of cortical development (MCD). The heterogeneity of these disorders are reflected by their varied clinical and neuroimaging features. Characteristic and intense scalp EEG abnormalities have been described in some patients. MATERIAL AND METHODS: We ...
Tupola S - - 1998
OBJECTIVES: To evaluate the predictive value of the electroencephalogram (EEG) at the time of diagnosis of insulin-dependent diabetes mellitus (IDDM) for subsequent hypoglycemic coma and/or convulsion. To study whether such an episode causes long-term EEG abnormalities. Study design: An EEG was recorded in 36 patients with IDDM 2 to 3 ...
Melek N B - - 1998
PURPOSE: To determine whether bilateral superior rectus recession modifies A and V pattern strabismus. PATIENTS AND METHODS: Three patients with V patterns and eight patients with A patterns underwent bilateral superior rectus recession with neither oblique muscle surgery nor vertical displacement of the horizontal rectus muscles. Another three patients with ...
Wiedemann G - - 1998
The topography and temporal sequence of scalp electrical fields were analyzed by adaptive segmentation of the continuous electroencephalogram (EEG) in 27 patients with panic disorder and 28 control subjects during rest phases and during the viewing of a neutral (mushroom) or an emotionally relevant (casualty) picture. The results indicate decreased ...
Moenkhoff M - - 1998
OBJECTIVES: Although endogenous nitric oxide (NO) is an excitatory mediator in the central nervous system, inhaled NO is not considered to cause neurologic side effects because of its short half-life. This study was motivated by a recent case report about neurologic symptoms and our own observation of severe electroencephalogram (EEG) ...
Ammirati F - - 1998
BACKGROUND AND PURPOSE: We sought to determine whether the introduction of EEG monitoring during head-up tilt testing could significantly improve the understanding of the cerebral events occurring during tilt-induced vasovagal syncope and the potential danger to the patient of this diagnostic procedure. METHODS: EEG monitoring was performed during head-up tilt ...
Anlar B - - 1998
We treated seven patients with subacute sclerosing panencephalitis with beta-interferon and oral inosiplex for 2 to 15 months. Stabilization or improvement was observed in three patients. The effect of treatment was equivocal in two other patients who became stable. The disease continued its progression in the remaining two patients who ...
Wada Y - - 1998
We assessed functional relationships between hemispheres by calculating interhemispheric EEG coherence at rest and during photic stimulation in 18 never-medicated patients with paranoid schizophrenia and 30 control subjects. Although no significant group differences were found in the resting EEG, the schizophrenic patients had significantly higher coherence on EEGs recorded during ...
Zijlmans J C - - 1998
OBJECTIVES: To investigate whether the conventional and quantitative EEGs of patients with vascular parkinsonism (VP) differ from those of idiopathic Parkinson's disease (PD) patients. MATERIAL AND METHODS: The EEGs of 13 patients with vascular parkinsonism and 14 patients with idiopathic Parkinson's disease were scored on a simple scale regarding aspects ...
Wellman B J - - 1998
OBJECTIVE: This study compared the electroencephalographic (EEG) changes occurring during carotid occlusion in 225 consecutive patients undergoing carotid endarterectomies performed by two surgeons, one using local and the other using general anesthesia. METHODS: A retrospective review of patients undergoing carotid endarterectomies for carotid occlusive disease was conducted. EEG changes associated ...
Marangolo P - - 1998
This retrospective study investigated whether there is evidence of a 3rd reading mechanism in a transparent orthography such as Italian, where (nearly) all words can be read through the sublexical route but stress cannot always be assigned by orthography-to-phonology rules. The presence and frequency of stress errors in lexically stressed ...
Ducrocq X - - 1998
BACKGROUND AND PURPOSE: Diagnosis of brain death requires confirmation of the clinical diagnosis by appropriate tests, generally electroencephalography (EEG) and angiography. The diagnostic limitations or logistical problems inherent to these tests indicate the need to develop other more appropriate methods. The results obtained with transcranial Doppler (TCD) led us to ...
Westmoreland B F - - 1998
We have studied 120 patients with EEGs that show defective reactivity of alpha activity in which one side fails to attenuate during the performance of mental arithmetic. The side of defective reactivity was the right side in 74 patients and the left in 46. A similar asymmetric reactivity of alpha ...
Kaste S C - - 1998
We retrospectively compared patients with NF1 with and without optic pathway gliomas (OPG) to determine the incidence and range of orbital developmental abnormalities and compared the incidence of OPG in African-Americans and whites. From cranial MR scans, we manually measured 14 orbital dimensions, compared them to published standards of Waitzman ...
Beydoun A - - 1998
OBJECTIVE: To determine the effect of intermittent photic stimulation (IPS) and frequency of asymmetric driving responses in patients with occipital spikes. METHODS: The amplitude of the driving response at 4 flash frequencies was measured from a referential montage in 60 patients with occipital spikes and in 60 normal EEG records ...
Kalita J - - 1998
OBJECTIVES: The present study is aimed at describing electroencephalographic (EEG) changes in the tubercular meningitis (TBM) and correlating these with clinical and radiological findings. METHODS: All the patients underwent a detailed neurological evaluation, CSF analysis, EEG and CT scan studies. Outcome was assessed by the Barthel index (BI) score at ...
Demeurisse G - - 1998
Right-sided capsulo-lenticular strokes may cause left visuo-spatial neglect. The neural mechanism most frequently evoked to account for the occurrence of related cognitive disorders is remote cortical dysfunction in the posterior part of the right hemisphere. We studied 33 patients with capsulo-lenticular stroke, with (n = 16) or without (n = ...
Díaz G F - - 1998
Spectral features of EEG background activity were studied in patients with localized symptomatic epilepsy (LSE), with origin in the frontal or temporal lobes. Z-values of high resolution spectra and measures of the parametric (xi alpha) model of the EEG were obtained for all 10/20 System leads and were compared with ...
Sheldon R S - - 1998
OBJECTIVE: To determine electroencephalographic (EEG) changes occurring during syncope induced by headup tilt table testing. DESIGN: Prospective observational study. SETTING: Calgary General Hospital Syncope Clinic, Calgary, Alberta. PATIENTS: Eighteen patients with a history of recurrent syncope who developed syncope while undergoing diagnostic isoproterenol tilt table testing. INTERVENTIONS: Continuous EEGs were ...
Barbaro G - - 1998
Several factors suggest that endogenous benzodiazepines and gamma-amino-butyric acid may be involved in pathophysiology of hepatic encephalopathy (HE). Contrasting opinions exist on the therapeutic efficacy of flumazenil in the treatment of HE. This study was planned to assess the efficacy of flumazenil by a double-blind, placebo-controlled, crossover design in a ...
Kawauchi A - - 1998
OBJECTIVE: To evaluate the mechanism of the dysfunction of arousal in patients with Type I and Type IIa enuresis. PATIENTS AND METHODS: The numbers of sleep spindles and delta waves were analysed during electroencephalography in 19 patients with enuresis (17 male, two female, mean age 9.7 years, range 8-14). RESULTS: ...
Siegel H - - 1998
OBJECTIVE: To describe the electroencephalographic findings in mucolipidosis type IV (ML IV), a lysosomal storage disease of unknown etiology characterized clinically by corneal clouding, retinal degeneration and severe psychomotor retardation. Most patients are of Ashkenazi-Jewish ancestry. The EEG findings in this syndrome have not been characterized. METHODS: We analyzed the ...
Misra U K - - 1998
In herpes simplex encephalitis (HSE), simultaneous electro-encephalogram (EEG) and evoked potential studies have not been reported, although EEG changes have been described. In this communication, EEG, somatosensory and motor evoked potentials have been reported in 9 patients with HSE. The patients' age ranged between 2 and 70 years and 3 ...
Locatelli T - - 1998
EEG coherence can be used to evaluate the functionality of cortical connections and to get information about the synchronization of the regional cortical activity. We studied EEG coherence in patients affected by clinically probable Alzheimer's disease (AD) in order to quantify the modifications in the cortico-cortical or cortico-subcortical connections. The ...
Abe H - - 1998
It is well known that some patients with neurally mediated syncope have a feeling of aura before the onset of syncope. A case is reported in which cerebral dysfunction recorded by EEG was present before the onset of a vasovagal reaction. The vasovagal reaction, bradycardia and/or asystole, was preceded by ...
Pedersen S B - - 1998
We aimed to characterize the clinical profile and EEG features of 43 patients with juvenile myoclonic epilepsy. In a retrospective design we studied the records of, and re-interviewed, 43 patients diagnosed with JME from the epilepsy clinic data base. Furthermore, available EEGs were re-evaluated. Of the patients 72% were female ...
Kalita J - - 1998
This study was undertaken due to the paucity of studies on electroencephalographic (EEG) changes in Japanese encephalitis (JE) and their clinical and radiological correlation. Twenty seven patients with JE were included whose age ranged between 2 and 54 years, 8 of whom were females and 10 aged 12 or less. ...
Pollak L - - 1998
Computerized EEG frequency analysis was performed in 18 patients with peripheral vestibular dysfunction (PVD), 17 patients with central vestibular dysfunction (CVD) and 22 aged matched controls. Increase in the relative theta activity in the centrotemporal region was found in patients with PVD. The decrease of centroparietal beta activity in both ...
Henry T R - - 1998
PURPOSE: Ictal behaviors during psychogenic nonepileptic seizures (NES) vary considerably among individuals, and can closely resemble common semiologies of epileptic seizures (ES). We tested the hypothesis that behaviors during NES in patients who have temporal spikes would more closely resemble behaviors during ES in patients with temporal lobe epilepsy than ...
Ko D Y - - 1998
OBJECTIVE AND IMPORTANCE: Source modeling by magnetoencephalography (MEG) and electroencephalography (EEG) may be useful techniques for noninvasive localization of epileptogenic zones for surgery in patients with partial seizures. CLINICAL PRESENTATION: Simultaneous recordings of MEG and EEG, obtained in two patients, were coregistered on each patient's magnetic resonance image for direct ...
Wada Y - - 1998
EEG coherence provides a measure of functional correlations between two EEG signals. The present study was conducted to examine intrahemispheric EEG coherence at rest and during photic stimulation (PS) in 18 drug-naive patients with paranoid schizophrenia and 30 control subjects. Compared with the controls, the schizophrenic patients had significantly higher ...
Wada Y - - 1998
Electroencephalography (EEG) coherence provides a measure of functional correlations between two EEG signals. The present study was conducted to examine intrahemispheric EEG coherence at rest and during photic stimulation (PS; 5, 10 and 15 Hz) in ten unmedicated patients with presenile dementia of the Alzheimer type (AD; mean age at ...
Lund A M - - 1998
The in vitro protein-chemical features and the molecular background of osteogenesis imperfecta (OI), a heritable disorder of collagen I metabolism, have been elucidated in recent years. The aim of our study was to find the prevalence of dentinogenesis imperfecta (DI) and other dental anomalies in 88 patients with OI, to ...
Adamolekun B - - 1998
OBJECTIVE: This study examined the influences of environmental and racial factors on the incidence of EEG photoparoxysmal responses (PPRs) to intermittent photic stimulation (IPS) in a multi-racial population exposed to seasonal variations in sunshine intensity. MATERIALS AND METHODS: The records of patients referred for EEG examination in Harare, Zimbabwe were ...
Pál E - - 1998
The incidence and clinical characteristics of Lyme neuroborreliosis (NB) in a region of high prevalence of tick-bite in Hungary is described. In the county Baranya 66 patients were recorded in a five-year period (1989-93). Fifty-six patients (85%) were in "early", and 10 patients (15%) in "late stage" of NB. The ...
Lugaresi E - - 1998
Recurring stupor can be caused by repeated metabolic, toxic or structural brain disturbances. Recently, cases of recurring stupor, with fast EEG activity were shown to display increased endogenous benzodiazepine-like activity during the episodes of stupor. Patients with recurring stupor underwent extensive metabolic and toxicologic screening, EEG and brain imaging. Endozepines ...
Tsai M L - - 1998
We studied the topographic mapping of the electroencephalography (EEG) of 47 children whose clinical history and course were compatible with typical benign childhood epilepsy with centrotemporal spikes (BCECT). Twenty-nine (62%) patients showed typical dipole fields, with a negative potential field in the centrotemporal region and a positive field in the ...
Rockstroh B - - 1997
Dynamical brain states can be characterized by non-linear measures of EEG. The present study shows that critical transitions, i.e., abrupt changes from one dynamic pattern of neural mass activity to another one, may be detected by abrupt variations in local chaoticity. Using an ambulatory device, EEG was recorded from 10 ...
Young G B - - 1997
BACKGROUND: The assessment of thalamocortical function in comatose patients in the intensive care unit (ICU) can be difficult to determine. Since the electroencephalogram (EEG) affords such assessment, we have developed an EEG classification for comatose patients in our general ICU. METHODS: One hundred EEGs were classified in a blinded fashion ...
Shvarkov S B - - 1997
Results were obtained using a new method, based on the "Adeli-92" therapeutic space suit, for the rehabilitation of patients with movement disorders due to acute lesions of the cerebral circulation, head trauma, and other causes. A variety of methods was used to assess the state of patients before and after ...
Kaushik A - - 1997
Fifty patients of various types of cerebral palsy were studied to find out an association between cerebral palsy, EEG abnormalities and development quotient. Seventy-six per cent patients had spastic cerebral palsy. Hypotonic cerebral palsy was the next common type (14%). Athetosis and ataxic forms were found to be rare (2% ...
Rubboli G - - 1997
We studied the neurophysiological features of five patients (age range: 4-20 years) suffering from Crigler-Najjar syndrome type I (CNsI) by means of multimodal (brainstem, somatosensory, motor) evoked potentials and periodic EEG-polygraphic recordings (follow-up: 3 months-4.5 years). Two patients presented with neurological disturbances, consisting mainly of mental slowing, motor impairment and ...
Lee B I - - 1997
The role of single photon emission computed tomography (SPECT) as an independent confirmation test in presurgical evaluation of medically intractable temporal lobe epilepsy has not been critically investigated. Because spreading ictal discharges may cause a concomitant increase of cerebral blood flow in remote cerebral regions, a careful analysis of peri-injection ...
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