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Results 451 - 500 of 913
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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 ...
Caminero A B - - 1997
Brain single photon emission computed tomography (SPECT) findings are described in four adult patients with the transient syndrome of headache with neurological deficits and cerebrospinal fluid (CSF) pleocytosis. Focal deficits consisted of right-sided hemisensory changes with or without motor dysphasia or dysarthric speech (n = 4) and confusional episodes (n ...
Jelic V - - 1997
OBJECTIVES: The epsilon4 allele of apolipoprotein E (APOE) represents a major biological risk factor for late onset Alzheimer's disease. However, it is still not known whether the APOE genotype affects the progression of the disease, assessed by different functional methods. METHODS: The study sample included 41 patients with probable Alzheimer's ...
Arnold M - - 1997
BACKGROUND AND PURPOSE: Intraoperative monitoring of brain function may influence the outcome of carotid endarterectomy (CEA). METHODS: We performed transcranial Doppler (TCD) monitoring of middle cerebral artery blood flow velocities (VMCAs) and eight-channel electroencephalographic (EEG) recording simultaneously in 82 patients undergoing CEA. Thiopental narcosis limited EEG interpretation in 11 patients, ...
Launes J - - 1997
We studied 88 patients with acute encephalitis using hexamethylpropyleneamine oxime and single photon emission computed tomography (SPECT). All patients had been initially treated with intravenous acyclovir. The etiology could be disclosed in 37 patients (42%), which included 15 patients with herpes simplex encephalitis, 7 with varicella-zoster encephalitis, and 29 with ...
Brenner R P - - 1997
Electroencephalographic (EEG) findings in syncope are reviewed. There are four major categories of syncope: neurally mediated (neurocardiogenic), neurologic, decreased cardiac output, and orthostatic hypotension. However, regardless of cause, whether the syncope is due to a vasovagal effect, a cardiac arrhythmia, an epileptic seizure, or hypotension, EEG findings are similar and ...
King D - - 1997
OBJECTIVE: To establish if MRI evidence of hippocampal atrophy (HcA) is an independent surrogate of EEG criteria for the diagnosis of medial temporal lobe (MTL) epilepsy (MTLE). BACKGROUND: MRI evidence of HcA has been shown to correlate with mesial temporal sclerosis (MTS), intracranial evidence of MTL seizure onset, and outcome ...
Velio─člu S K - - 1997
We report the results of the study assessing the role of electroencephalogram (EEG) in the evaluation of patients with temporal lobe epilepsy (TLE). A prospective interictal EEG study was performed in 80 patients with TLE, and the results were compared with those of neuroimaging magnetic resonance imaging (MRI) and computed ...
Kuzniecky R - - 1997
We used proton magnetic resonance spectroscopic imaging (MRSI) at 4.1 tesla in patients with malformations of cortical development (MCDs) and epilepsy. We compared the spectroscopic results with normative data using 2 SDs (95% confidence) above normal values for detection of significant abnormalities for creatine-N-acetylated compounds (Cr/NA) ratio and choline-N-acetylated compounds ...
Naganuma Y - - 1997
To clarify the relationship between the cognitive function and EEG activity, auditory event-related potentials (P300) were examined in 72 patients with partial epilepsy. Twenty-six patients (67 trials) had idiopathic partial epilepsies (IPE), and 46 (118 trials) symptomatic or cryptogenic partial epilepsies (SPE). For this study, patients undergoing carbamazepine monotherapy with ...
Lancman M E - - 1997
To report a case in which triphasic waves developed during pentobarbital treatment. Pentobarbital coma is indicated in status epilepticus, refractory to other anticonvulsants, and in certain neurologic conditions in order to decrease brain metabolism. At high doses of pentobarbital, the EEG shows a typical burst-suppression pattern, while at low doses, ...
Laan L A - - 1997
PURPOSE: To evaluate the evolution of epileptic seizures and EEG features in a large group of patients with Angelman syndrome (AS). METHODS: Thirty-six patients with AS with a proven chromosome 15q11-13 deletion were retrospectively analyzed with regard to their epilepsy and EEG findings by examination of patient files and EEGs. ...
Riekkinen P P - - 1997
In a previous study, we reported that Alzheimer disease (AD) patients with an apolipoprotein E (APOE) epsilon 4 allele (+ APOE4) show more severe loss of nucleus basalis (NB) cholinergic cells than patients without epsilon 4 alleles (-APOE4). The present study investigates the effects of a single oral administration of ...
Boniface S J - - 1997
The EEG was recorded using an endovascular guide wire as the electrode. This was Teflon coated except for its terminal portion, which was placed distal to the origin of the middle cerebral artery. Four hemispheres were sampled sequentially in two patients with intractable complex partial seizures who were undergoing routine ...
Andrews P I - - 1997
PURPOSE: Rasmussen's encephalitis (RE) is a progressive childhood disease characterized by unilateral brain dysfunction, seizures, and inflammatory histopathology. Converging lines of evidence suggest that an autoimmune process is important in the pathogenesis of RE. METHODS: Two patients with pathologically confirmed RE and increased levels of circulating glutamate receptor subunit (GluR3) ...
Bauer J J Department of Epileptology, University of Bonn, - - 1997
We report the case of a 55-year-old patient with infrequent generalized tonic-clonic seizures since the age of 40 years and additional frequent episodes of disturbed behaviour and impaired cognition. The latter last from several hours up to one day with sudden onset and end of electroencephalographic (EEG) changes and clinical ...
Wada Y - - 1997
In the present study, quantitative electroencephalographic (EEG) analysis was performed at rest and during photic stimulation (5, 10, and 15 Hz) in nine patients with presenile dementia of the Alzheimer type (AD; mean age at onset, 55 years) and nine sex- and age-matched control subjects. Compared with the normal controls, ...
Hughes J R - - 1997
This study involved 505 patients with the EEG pattern of hypsarrhythmia (H) and clinical attacks of infantile spasms (IS) studied over a 51 year period from 1945 until 1996. The total number of EEGs was 1300 and changes in the EEG and type of clinical seizure were followed for up ...
Hegerl U - - 1997
Electroencephalography is the only diagnostic instrument directly reflecting cortical neuronal functioning, and it remains an important clinical tool in the diagnosis and differential diagnosis of Alzheimer's disease (AD). Although a normal EEG is found in many patients with mild AD, a pathological EEG is an important finding, because such a ...
Theodore W H - - 1997
PURPOSE: To study the value of [18F]2-deoxyglucose (FDG)-positron emission tomography when surface ictal EEG is nonlocalizing. METHODS: FDG-PET scans were performed in 46 patients with complex partial seizures (CPS) not localized by ictal surface-sphenoidal video-EEG (VEEG) telemetry. Interictal PET was performed with continuous EEG monitoring, and images were analyzed with ...
Lappalainen R - - 1997
Thirteen patients (mean age 8.4 + 5.3 years) with Rett syndrome (RS) were studied with EEG and 99mTc-HMPAO SPECT. Eleven patients had background abnormalities and 10 patients paroxysmal activity in EEG. Hypoperfusion of varying severity was detected in 11 patients, 7 patients having multiple lesions. Bifrontal hypoperfusion, observed in 6 ...
Laan L A - - 1996
We studied the clinical and EEG-findings in 28 adult patients (aged 20-53 years) with Angelman syndrome (AS). Twenty-three showed a maternal chromosome 15q11-13 deletion; in 5, the diagnosis was based on a combination of typical clinical findings. Compared to the clinical manifestations present in childhood, "coarsening" of facial traits (100%), ...
Marchiori P E - - 1996
Creutzfeldt-Jakob disease (CJD) is a transmissible disease of the nervous system causatively related to the presence of an abnormal prion protein, with dementia, myoclonic jerks, and periodic EEG activity. Fourteen patients (7 females and 7 males) ranging from 26 to 76 years of age (median 59 years) were evaluated between ...
Bassetti C - - 1996
BACKGROUND: The univariate study of clinical, electrophysiological, or biochemical variables has been shown to predict the outcome in postanoxic coma in about 50% of patients for each type of variable. Previous studies did not, however, consider the prognostic accuracy of a multivariate approach. METHODS: Sixty patients in coma for more ...
Dantendorfer K - - 1996
The frequency and quality of brain abnormalities in panic disorder (PD) were assessed with magnetic resonance imaging (MRI). The use of electroencephalography (EEG) to detect PD patients with a high probability of morphologic brain abnormalities was also explored. Consecutive PD patients (n = 120) were screened with routine EEG examinations ...
Raymond A A - - 1996
Recent advances in neuroimaging have allowed the detection and characterization of focal malformations of cortical developmental in a significant proportion of patients with epilepsy, many of whom were previously labelled as cryptogenic, allowing a better description of the associated electroencephalogram (EEG) features. Alpha activity is usually preserved, although superficial gyral ...
Michelucci R - - 1996
OBJECTIVES: To describe the electroclinical features of typical absences persisting in adult life. METHODS: Twelve adult patients (aged 21 to 56 years) with idiopathic generalised epilepsy featuring typical absences as the prominent clinical feature were studied. All patients underwent a full clinical and neurophysiological investigation including ictal documentation of seizures. ...
Ives J R - - 1996
Recent technical developments allow the recording of a patient's oxygen saturation (SpO2) simultaneously with intensive long-term EEG monitoring (LTM). Clinically significant information from this enhanced multi-system physiological monitoring device can contribute to more accurate diagnoses in patients referred for LTM. This report covers the technical usage of combined SpO2/EEG recordings ...
Mohan K K - - 1996
OBJECTIVES: A retrospective study was conducted to evaluate clinical usefulness of video EEG monitoring in patients with suspected epileptic seizures. MATERIAL AND METHODS: A total of 444 patients who had diagnostic video EEG from January 1989 to December 1992 were studied after excluding those with known medically refractory focal epilepsy ...
Matsuura M - - 1996
Nineteen chronic schizophrenics (8 males and 11 females) showed at least one spike and wave complex (SpW) in their rested-awake EEGs during long-term neuroleptic treatment. The age at the first appearance of the SpW ranged from 16 to 60 years, and the duration of neuroleptic medication preceding its appearance was ...
Partanen J - - 1996
INTRODUCTION: Down's syndrome patients express a neurodegenerative disorder and mental retardation. We studied the reactivity of EEG and its correlation with neuropsychological test score in Down's syndrome. MATERIAL AND METHODS: We studied 32 patients with Down's syndrome and 31 controls for blocking of occipital EEG activity. The temporo-occipital EEG with ...
DeDavid M - - 1996
BACKGROUND: Patients with a large congenital melanocytic nevus (LCMN) may have associated leptomeningeal melanocytosis with or without central nervous system (CNS) melanomas. These patients are considered to have neurocutaneous melanosis, a disorder that, when symptomatic or otherwise manifest neurologically, carries a poor prognosis even in the absence of malignancy. OBJECTIVE: ...
Alster Y - - 1996
BACKGROUND: Haloes causing difficulties during the night driving are one of the common complications of photorefractive keratectomy (PRK). The presumed reason for this phenomenon is the different refraction of light through the treated and untreated areas of the cornea. Its magnitude is proportional to the ratio between the treated area ...
Ogunyemi A - - 1996
BACKGROUND: The term, "triphasic wave" originally described an EEG pattern believed to be a marker for a specific stage of hepatic coma. For 4 decades, the diagnostic and prognostic specificity of the pattern remains controversial. Its pathophysiology also continues to be elusive. METHODS: EEG recordings were obtained in three patients ...
Blatt I - - 1996
In a retrospective study of 15.326 EEGs performed from 1983 to 1992 in a psychiatric institute, 83 EEGs (62 patients-13 men and 49 women ranging in age from 59 to 90 years, with a mean age of 74 years) had triphasic waves (TWs). All 62 patients were awake, though they ...
Guerrini R - - 1996
Angelman syndrome (AS) results from lack of genetic contribution from maternal chromosome 15q11-13. This region encompasses three GABAA receptor subunit genes (beta3, alpha5, and gamma3). The characteristic phenotype of AS is severe mental retardation, ataxic gait, tremulousness, and jerky movements. We studied the movement disorder in 11 AS patients, aged ...
Datta D - - 1996
We carried out an audit of the activities of a subregional special seating clinic from the departmental records covering a period of 1 year. A total of 113 patients were seen in the clinic; 64.6% of these were first-time referrals. Cerebral palsy was given as the primary diagnosis for 84.9% ...
Bhatia M - - 1996
Video-EEG monitoring was done in 26 patients with paroxysmal intractable attacks of uncertain etiology to determine the nature and cause. Two broad categories were identified: Those with prominent motor activity and those with attacks of collapse/limpness. Events were recorded in 16 patients of which 11 showed no abnormality on the ...
Singhal B S - - 1996
Over a 10-year period, we reviewed 30 patients with leukodystrophy, megalencephaly, and a relatively benign course. Most of these patients (26) belonged to a distinctive ethnic group called the Agrawals. Head circumference exceeded the 95th percentile in 28 patients; 22 patients had seizures; 22 had pyramidal signs (16 more pronounced ...
Riikonen R - - 1996
To our knowledge, ours is the first study to evaluate the outcome of infantile spasms (IS) in adult patients. We analyzed 214 children born between 1960 and 1976 who had been followed for 20-35 years or until death at 3 months to 30 years of age. Mortality was 31% (67 ...
Cockerell O C - - 1996
Epilepsia partialis continua (EPC) is defined clinically as a syndrome of continuous focal jerking of a body part, usually localized to a distal limb, occurring over hours, days or even years. The anatomical and physiological origin of EPC has been the subject of much speculation. It has been argued that ...
Gambardella A - - 1996
We examined the significance and frequency of occurrence of rhythmic epileptiform discharges (REDs) on the scalp EEGs of 74 patients with intractable partial epilepsy. We also analyzed the relationship of this abnormality to the continuous epileptiform discharges (CEDs) recorded on ECoG. Both REDs and CEDs had been found to be ...
Politoff A L - - 1996
Down syndrome (DS) subjects develop Alzheimer disease (AD) histopathology before they develop dementia. We compared the resting and flash stimulated electroencephalogram (EEG) of nondemented adult DS and age-matched control subjects, in search of EEG abnormalities that might correlate with AD histopathology. DS subjects had increased absolute power in all the ...
Pillay S S - - 1996
The purpose of this study was to test the hypothesis that minor EEG abnormalities predict a favorable response to clozapine. Eighty-six psychotic clozapine-treated psychiatric inpatients with EEG records before starting clozapine were included in the study. When all diagnostic groups were combined, there were no significant differences in clinical outcome ...
Smith A - - 1996
We report the clinical features in 27 Australasian patients with Angelman syndrome (AS), all with a DNA deletion involving chromosome 15(q11-13), spanning markers from D15S9 to D15S12, about 3 center dot 5 Mb of DNA. There were nine males and 18 females. All cases were sporadic. The mean age at ...
Franklin R R - - 1996
Patient records from the Thiaroye mental hospital in Senegal were analyzed to see if the patterns of persons accompanying patients to the hospital could help portray the community's response to mental illness. A systematic sample of 935 records of initial our-patient visits were examined. Patterns of patient companionship were found ...
Richardson M G - - 1996
Patients with type 1 neurofibromatosis (NF-1) have been reported to have prolonged responses to nondepolarizing (ND) neuromuscular blockers (NMBs). Responses to succinylcholine (SCh) have been described as increased, decreased, or normal. The purpose of this study was to assess responses to NMBs in NF-1 patients in order to determine the ...
Neufeld M Y - - 1996
Twenty patients with Parkinson's disease (PD), who developed delusions and psychotic behavior, underwent electroencephalogram (EEG) recordings before and during treatment with low-dose clozapine. Resolution of the psychotic features was observed in all cases. The EEG was unaltered in 15, whereas five patients exhibited increased generalized or focal slowing when compared ...
Förstl H - - 1996
Ten patients with a clinical diagnosis of frontal lobe degeneration (FLD) were compared with a group of patients with probable Alzheimer's disease (AD) and with nondemented controls matched for gender and age. In comparison with AD, the duration of illness was slightly shorter and cognitive performance was better in patients ...
Stam C J - - 1995
Many recent studies based on the surrogate data method failed to identify significant non-linearity in the EEG. In this study we examine whether the use of a different embedding method (spatial instead of time delay), and calculation of Kolmogorov entropy (K2) and the largest Lyapunov exponent (L1) in addition to ...
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