Search Results
Results 551 - 600 of 912
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Harden C L - - 1993
We have observed an unusual low amplitude, slow and featureless electroencephalogram (EEG) pattern in some human immunodeficiency virus (HIV) infected patients without focal lesions on computerized tomography (CT scan) of the head. Out of 17 cases, 13 with AIDS and 4 with HIV positive status, 6 had low amplitude EEGs ...
Propeck P A - - 1993
This study was performed to determine the utility of routine axillary radiography in postmastectomy patients. The records of 185 postmastectomy patients who had undergone axillary radiography were retrospectively reviewed. Of 499 views obtained, only 10 (2%) were reported as abnormal. Only one of the 10 patients with abnormal studies had ...
Smith S J - - 1993
Electroencephalograms (EEGs) and evoked potentials (EPs) were studied in 43 patients with mitochondrial myopathies. Abnormalities were found most frequently in patients who presented predominantly or exclusively with central nervous system (CNS) dysfunction (abnormal EEGs in 18 of 21 patients, abnormal EPs in 9 of 11 patients). However, of patients presenting ...
Leuchter A F - - 1993
OBJECTIVE: To determine the prevalence of electroencephalogram (EEG) abnormalities at different levels of cognitive impairment and to assess the possible diagnostic usefulness of the test. DESIGN: Combined prospective assessment of subjects receiving EEGs and retrospective chart review of symptoms and medications. SETTING: Academic geriatric psychiatry service. PATIENTS: 350 adults age ...
Günther W - - 1993
In a retrospective study, 1863 EEG recordings made during clozapine treatment of 283 patients with normal pretreatment EEG evaluations were analyzed. Furthermore, they were compared to the EEGs of the same patients without clozapine (i.e., during other neuroleptic medication). Moreover, the data of all patients who had seizures during treatment ...
Franceschi M - - 1993
The pattern of regional cerebral blood flow was assessed by single photon emission tomography and (99mTc)HM-PAO in 28 patients with clinical diagnosis of non-refractory cryptogenic temporal lobe epilepsy on chronic treatment with carbamazepine. Each patient underwent a magnetic resonance imaging study of the brain. An EEG was performed concurrently with ...
Juhász C - - 1993
Follow-up of spectral EEG parameters were reported for five patients with serologically verified tick-borne encephalitis. Comparisons were made for clinical data and findings of EEG analysis (power probability mapping, peak-power frequencies, and alpha/theta power ratios) were compared. A prominent feature of the EEG abnormality was the marked attenuation of background ...
Chayasirisobhon S - - 1993
Video EEG monitoring for 1-2 hours was performed on 100 outpatients (57 females and 43 males) with refractory seizures or frequent paroxysmal events. Patients' ages ranged from 8 days to 67 years (mean age 21). At least one clinical seizure or paroxysmal event was observed in 66 patients; 24 of ...
Ogiso Y - - 1993
Borderline personality disorder (BPD) was diagnosed in female patients (N = 41) between the ages of 18 and 30 using the Diagnostic Interview for Borderline Patients (DIB) and DSM-III. Comparing the EEG findings of BPD (N = 18) and non-BPD (N = 21) groups, there were no EEG findings characteristic ...
Raroque H G HG - - 1993
A review of clinical data from 18 pediatric patients with periodic lateralized epileptiform discharges and bilateral independent periodic lateralized epileptiform discharges (PLEDs and BIPLEDs) showed 2 with chronic neurologic illness, 6 with a history of prior seizures, 14 with depressed sensorium at the time of EEG, 5 deaths, and 8 ...
Striano S - - 1993
In a 12-year period, in a total of about 2000 new patients referred to our Epilepsy Centre, we observed four patients with seizures exclusively or predominantly triggered by calculation or by card and board games (epilepsia arithmetices, EA). In agreement with observations reported in the literature, all the patients suffered ...
Franceschetti S - - 1993
Electroclinical, morphological, biochemical and molecular genetic data from 17 patients affected by progressive myoclonus epilepsies (PME) are reported. Twelve patients were characterized by prominent action myoclonus, sporadic seizures, mild ataxia, lack of dementia and persistence of normal EEG background activity; three patients showed a more rapid worsening of symptomatology, characterized ...
Bagdorf R - - 1993
Clinical and electrographic features were retrospectively studied in 57 patients with midline (Fz, Cz, Pz) spikes as the only epileptiform activity in their EEG to determine possible predictors of outcome. Our study confirmed previous reports of early age of onset, activation by sleep, and Cz as the most frequent spike ...
Maytal J - - 1993
To examine the neuroradiological and clinical correlations of focal continuous polymorphic delta activity (PDA) in children, we reviewed the records of patients with continuous PDA that was either focal or lateralized to one hemisphere. Of 2571 electroencephalograms (EEGs) performed between July 1, 1988, and December 31, 1990, a total of ...
Pietz J - - 1993
The authors report the results of two EEG studies on adult patients with phenylketonuria (PKU) who had been treated early. Part I: the authors followed the EEGs of 34 PKU patients from birth to age 21. The frequency of abnormal EEG findings (especially epileptiform activity) steadily increased until age 12, ...
Weilburg J B - - 1993
Atypical panic attacks include features such as focal paresthesias or sensory distortions, but attempts to demonstrate a relationship to partial seizures have been unsuccessful. Two patients with atypical panic attacks had attacks during EEG monitoring: one during a routine EEG in the EEG laboratory, the other at home during ambulatory ...
Okada S - - 1993
The midline theta rhythm consists of runs of theta waves occurring in the midline, especially in the central and parietal vertex regions. Few reports regarding this uncommon EEG finding have been published. It has been given various names, e.g. theta discharges in the middle-line, theta spindles, etc. Out of the ...
Sankar R - - 1992
The electroencephalogram (EEG) is often used for the diagnosis of diseases and functional disturbances in the brain. In this paper, new algorithms developed for the automatic detection of transients in EEG are described. The single spike, and spike and wave bursts, both of which are abnormal phenomena associated with epileptic ...
Fitzgerald L F - - 1992
Electroencephalographic and clinical findings are reported for 100 patients with the Lennox-Gastaut (LGS) triad of slow bilateral spike and wave (BSW), retardation and multiple seizures. Neurological and mental deficits were frequently observed, especially in patients who developed seizures before age 1 yr. More than half of the patients had focal ...
Marciani M G - - 1992
The localization of the epileptogenic focus relies on different factors. In patients with partial seizures, asymmetries in EEG background activity were measured by a statistical evaluation of spectral data. Neurophysiological results were compared with neuropsychological findings and MRI. Fifteen of 22 patients showed asymmetries in EEG background activity. The most ...
Omori M - - 1992
To investigate the brain function of elderly schizophrenic patients, quantitative EEGs of such patients were compared with those of healthy elderly controls. In schizophrenics, increases in delta and slow theta (4.0-6.0 Hz) waves were thought to be due to the influence of antipsychotics. Characteristic EEG features of these patients included ...
Vacca G - - 1992
Clinical and EEG findings of 36 patients with West syndrome (WS) were reported. Twenty patients (7 males, 13 females; mean age 7.4 months at the first EEG examination) were followed for a mean period of 19.3 months. Fifty per cent of the 8 cases with cryptogenic SW showed a full ...
Kano K - - 1992
EEG data were obtained in the basic state from 16 scalp sites of 44 patients with affective disorder, diagnosed by DSM-III criteria, and 44 normal controls. The EEG power spectra were computed and the t statistic significance probability mapping (SPM) was applied to visualize regions where the patient group showed ...
Morris H H - - 1992
We report five patients who experienced delayed patchy hair loss after prolonged EEG monitoring. The location of the patches corresponded to the electrode sites in four. The hair loss was temporary and most probably was due to traumatic noncicatricial alopecia. The frequency of hair loss was approximately 2% of monitored ...
Ruiz-Maldonado R - - 1992
Eighty pediatric patients with giant pigmented nevi more than 20 cm in their greatest diameter are reported. The incidence was 1 in 4150 general pediatric outpatients. The mode of inheritance of giant pigmented nevi is probably multifactorial; four second-degree relatives of our patients also had large nevi, and there was ...
Bashein G - - 1992
After more than 30 yr of use, electroencephalographic (EEG) monitoring during cardiopulmonary bypass has not gained wide clinical acceptance. To assess its utility to predict central nervous system injury, two-channel recordings were made from 78 patients undergoing cardiopulmonary bypass and anesthetized with fentanyl/diazepam/enflurane. The perfusion regimen included the use of ...
Herkes G K GK Section of Electroencephalography, Mayo Clinic, Rochester, MN - - 1992
Midazolam hydrochloride, a water-soluble benzodiazepine for intravenous injection, is frequently used to provide sedation to mechanically ventilated patients in the critical-care unit. Although the effects of midazolam on the electroencephalograms (EEGs) of healthy volunteers have been reported previously, to our knowledge such effects in ill patients have not been documented. ...
de Rijk-van Andel J F - - 1992
Twenty-one Dutch patients were the subject of an extensive study into lissencephaly type I. One hundred and fourteen EEG's of these patients were studied. The EEG's were compared to 52 EEG's recorded from 21 patients with an atypical cortical dysplasia and to a control group consisting of 882 EEG's recorded ...
Meloni G - - 1992
A neurological and electroencephalographic (EEG) prospective study was performed in 34 leukemic patients receiving busulfan (BU) plus cyclophosphamide (CY) before bone marrow autologous transplant. During BU treatment and briefly thereafter, all patients were given anticonvulsant prophylaxis with phenobarbital. Neurological evaluations were performed daily and EEGs, recorded one week before and ...
Lowenstein D H - - 1992
We retrospectively evaluated the clinical and EEG features of status epilepticus (SE) in 47 comatose adult patients in whom SE was suspected clinically or because the EEG revealed repetitive electrographic seizures or continuous spike-and-wave activity. Three groups of patients were identified. Group-1 patients (n = 33) had SE both clinically ...
Gerez M - - 1992
The relationship between psychiatric symptoms that respond to anticonvulsants and epileptic activity is still debated. Evidence linking electroencephalographic changes to treatment response is scarce and controversial, partly because of the poor scalp representation of limbic electrical activity. We studied the clinical relevance of focal topographic changes in the resting EEG, ...
Allen P J - - 1992
We have compared interhemispheric time differences (ITD) calculated by coherence/phase and linear and non-linear correlation analyses of generalised spike-wave episodes in 30 patients (15 with primary generalised epilepsy (PGE), 5 with secondary generalised epilepsy (SGE) and 10 with a lateralised epileptogenic area). Most cases were recorded during routine departmental EEGs. ...
Drake M E ME - - 1992
The neurophysiologic correlates of explosive rage and violence are uncertain and controversial. We recorded 17-channel electroencephalograms (EEGs), brainstem auditory-evoked potentials (BAEPs), and long-latency auditory-event-related potentials (AEPs) in 23 patients with impulsive, aggressive and violent behavior satisfying criteria for episodic-dyscontrol syndrome. Most patients also satisfied criteria for intermittent explosive disorder, although ...
de Graaf A S - - 1992
This descriptive study consists of 1493 EEGs from patients with epilepsy referred to the State Hospital in Windhoek, over the years 1983-1988. Excluded were patients with febrile convulsions, acute symptomatic epilepsy and a history of alcoholism. A standardized procedure of intermittent photic stimulation (IPS) was performed. The three main population ...
Sandyk R - - 1992
Computed tomographic (CT) studies of the brain in schizophrenic patients have demonstrated a variety of structural abnormalities. We reported recently an association between pineal calcification (PC) and cortical and prefrontal cortical atrophy, and third ventricular size on CT scan in chronic schizophrenic patients. These findings indicate that in schizophrenia PC ...
Dierks T - - 1992
In recent years, as a result of increasing calculation power of computers and with the aid of appropriate computer programs it has been made possible to calculate equivalent dipoles as intracranial representations of cerebral electrical activity. The present study investigated the localization of intracerebral equivalent dipoles in healthy controls and ...
Logar C - - 1992
In 62 patients with late onset epilepsy the findings of EEG mapping routine EEG and CT were compared. Forty four patients had generalized, 18 partial seizures. In 39 patients (63%) EEG mapping revealed focal changes but only in 24 patients (39%) using routine EEG alone. Thus the EEG mapping showed ...
Young G B - - 1992
To define the EEG and associated clinical features of septic encephalopathy, we studied 62 patients with positive blood cultures. Patients were divided into three clinical groups: nonencephalopathic (NE), mildly encephalopathic (ME), and severely encephalopathic (SE); the latter two groups had diffuse cerebral dysfunction. EEGs were classified into five groups: normal, ...
Zappoli R - - 1991
Bit-mapped multicomponent CNV complex and reaction time (RT) were recorded and measured in 24 presenile patients with initial symptoms of very mild to moderately severe primary mental deterioration without depression, and in 10 age-matched controls. All patients underwent CT and MRI examinations, EEG spectral analysis and a battery of psychometric ...
Pantano P - - 1991
The Xe-133 inhalation method was used to study rCBF in 12 patients with partial epilepsy during the interictal phase. SPECT images evidenced a focal CBF defect in 10 out of 12 patients, while quantitative analysis showed CBF abnormalities in all the patients. The focal CBF defect corresponded to the site ...
Gloor P - - 1991
Preoperative EEG investigations of patients with temporal lobe seizures include extracranial interictal and ictal recordings during wakefulness and sleep, including long-term EEG and video-monitoring. Interictal epileptiform discharges when evaluated conservatively and in conjunction with other EEG and non-EEG localizing information, provide valuable guidance for the identification of the area to ...
Vantrappen G - - 1991
Patients with Roux-en-Y anastomoses may have chronic symptoms of nausea, vomiting, epigastric fullness, and abdominal pain. To investigate the mechanism of these symptoms, the electrical activity of the Roux limb was studied in five symptomatic and four asymptomatic patients with Roux-en-Y anastomoses. Slow-wave and spike activity in the Roux limb ...
Chu N S - - 1991
Computerized EEG spectral analysis and topographic mapping were performed on 14 patients with Wilson's disease (WD) and 10 normal subjects of comparable ages. The predominant EEG changes in WD were diffuse but uneven topographic abnormalities with a decrease in alpha activity, an increase in theta and delta activities, and a ...
Beauregard L A - - 1991
Evaluation of patients with syncope often includes a battery of noninvasive tests. In this study, 45 patients (26 with suspected neurologic and 19 with suspected cardiac syncope) were evaluated with simultaneous 24-hour electroencephalographic (EEG) and 2-channel electrocardiographic (ECG) recordings. Isolated cardiac rhythm abnormalities were noted in 21 patients, but none ...
Soikkeli R - - 1991
EEG studies of Parkinson's disease (PD) have shown that the incidence of EEG abnormalities is higher than in normal old individuals. The most common alteration in PD is generalized slowing of the EEG. We studied 18 patients with Parkinson dementia, 18 age-matched Parkinson patients without dementia and 20 controls. The ...
Nagakubo S - - 1991
We designated EEGs with marked and irregular beta waves in basic patterns as "irregular beta patterns" on the basis that these patterns are related with particular symptoms such as dysphoria, irritability and autonomic symptoms and they implicate choice of therapeutic agents. Because of good response to antiepileptic agents in patients ...
Burroughs E I - - 1991
The purpose of this study was to define more completely the speech disorders that can occur in systemic amyloidosis. Fifty-nine patients with histologically established primary systemic amyloidosis were studied. Of this group, 81% had abnormal voice quality, 43% had abnormal pitch, 7% had abnormal resonation and 15% had abnormal articulation. ...
Rung G W - - 1991
Fifteen infants were studied to evaluate the effect of profound hypothermia (16 degrees C to 18 degrees C) and hypothermia plus thiopental on the electroencephalogram (EEG) prior to circulatory arrest. Mean patient age and weight were 5.5 +/- 1.2 months and 4.9 +/- 0.3 kg, respectively. After core cooling on ...
Kvedar J C - - 1991
We have observed that the fragile hair of two untreated patients with argininosuccinic aciduria showed abnormal alternating zones of bright and dark banding by polarizing microscopy. Scanning electron microscopy documented discontinuous grooves with a 50 to 100 microns periodicity. Results of amino acid analysis of the hair were essentially normal. ...
Jabbari B - - 1991
We have studied cortical localization provided by surface and sphenoidal electroencephalograms (EEGs) and that of computed tomography (CT), magnetic resonance imaging (MR) and single photon emission tomography (SPECT) in 58 patients with partial epilepsy. Each patient had EEG, MR and SPECT during a hospitalization period of 1-2 weeks. CT scans ...
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