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Results 601 - 650 of 914
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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 ...
Abdel-Dayem H M - - 1991
Thirteen mentally retarded pediatric patients aged 4 to 13 years with therapy-resistant epilepsy underwent Tc-99m HMPAO brain perfusion SPECT studies. The results (abnormal in 12 of the 13 patients) were compared with EEG results in 12 of the 13 patients (abnormal in all 12) and x-ray CT in 11 of ...
Molarte A B - - 1991
This study describes the age of onset, symptomatology, and clinical characteristics of 25 patients with intermittent esotropia. This subgroup of esotropic patients typically has onset prior to 10 years of age and shows excellent bifoveal fixation ability, reflected by a high degree of stereopsis. In contrast to patients with other ...
Helkala E L - - 1991
To determine if the pattern of cognitive decline in Alzheimer's disease (AD) patients with normal EEG differs from that in patients with abnormal EEG at the early stage of the disease, we have followed 12 AD patients with normal EEG (NEEG) and 12 patients with deteriorating EEG (DEEG). The AD ...
Neufeld M Y - - 1991
Electroencephalographic (EEG) changes occurring in patients with migraine have received much attention. However, almost equal number of reports indicate the predominance of normal and abnormal findings. We studied the EEG in symptom-free, otherwise healthy, unmedicated 18-28 year-old patients: 22 with common migraine, 20 with classic migraine, and 20 age-matched controls. ...
Rae-Grant A D - - 1991
In a series of 20 EEGs from 15 patients, well-defined brief attenuations occurred interspersed among the background activity. These episodic low-amplitude events (ELAEs) typically lasted 0.5-4 s. They were hemispheric or bisynchronous and occurred in patients with coma of various etiologies, including status epilepticus. The episodes of attenuation were brief ...
Mikati M A - - 1991
The EEG features and clinical correlates were investigated before, directly after, and on long-term follow-up after initiation of pyridoxine therapy in 6 patients with B6-dependent epilepsy. At each phase, the EEG provided important diagnostic and prognostic information. Pre-B6 3 neonates manifested a unique EEG pattern of generalized bursts of 1-4 ...
Horiguchi J - - 1991
The severity of intellectual impairment of 89 patients with Parkinson's disease was evaluated with the Osaka Intelligence Scale for the Aged (OISA). Based on their intelligence levels, the patients were divided into three groups: normal, slight dementia and dementia. EEGs, psychiatric complications such as hallucination, degree of motor disability, history ...
Ostergaard J R - - 1991
The presence of a possible cerebral involvement in Schönlein-Henoch Purpura was investigated in a prospective study comprising 26 children. A hampering headache accompanied by behavioural changes was present in 8 patients (31%). No cases of seizures, aphasia, ataxia, pareses or cerebral haemorrhage were found. EEG-abnormalities like slow wave foci, sharp ...
Krauss G L - - 1991
CNS complications of chronic alcoholism are frequently difficult to assess due to the variety of direct and secondary conditions which can result from alcoholic drinking and lifestyles. The influence of alcoholism and alcohol-related factors on the EEG of patients with chronic alcoholism was studied in 213 patients (15.4% of all ...
Soininen H - - 1991
We have studied the absolute and relative power and amplitude of EEG spectra (T6-02) of 24 patients with "probable" Alzheimer's disease at the early stage of the disease and 1 year later and also compared the values to those of normal elderly controls. A remarkable variability of the absolute values ...
Paulus W - - 1991
We have investigated the effect of piracetam on photoparoxysmal responses in 3 patients with progressive myoclonus epilepsy. With doses of up to 10 g/day, elimination of photoparoxysmal responses was achieved in all 3 patients. Corresponding to EEG improvement, the clinical performance improved slightly in 2 patients and definitely in 1 ...
Psatta D M - - 1991
Twenty schizophrenia-like psychotic patients suspected of epilepsy were explored using EEG techniques (recordings in the 10-20 International System, source derivation, EEG mapping and EEG spectral reaction mapping by photic and somesthetic stimulation). In 16 of them, latent epileptic disorders were found. EEG spiking foci could be located either: (a) in ...
Logar C - - 1991
In 148 patients with focal cerebral lesions the findings of EEG mapping, routine EEG and CT were compared. Regarding etiology 43 patients suffered from completed stroke (CS), 43 patients from transient ischemic attack (TIA), 33 patients had an intracerebral hemorrhage (ICH) and 29 an hemispheric tumor. In 37 patients with ...
Sideli R V - - 1991
Methods for validating patient names during the upload of clinical records are described. Exact string matching, Soundex method and a pattern matching algorithm (LCS method) are described and compared to a manual analysis of 10000 patient name pairs. In addition, the types of spelling and typographical errors that occur in ...
Ryback R S - - 1991
A diagnostic method is presented that makes it possible to distinguish patients who are most likely to show a positive response to treatment with anticonvulsant medication, thereby cutting across many DSM-III-R diagnoses. Patients are evaluated to determine whether they exhibit at least 4 of 12 groups of symptoms, and the ...
Merrin E L - - 1991
The authors transformed 9 channels of electroencephalogram (EEG) to 10 channels of average reference data and compared EEG asymmetry between medication-free (for 2 weeks) schizophrenic male patients (n = 14), male patients with affective disorder (n = 9), and normal males (n = 13). Multivariate analyses failed to find lateralized ...
Kälviäinen R - - 1991
At present, 34 patients aged 15 to 63 years with newly diagnosed epilepsy have been randomly assigned to vigabatrin (n = 17) or carbamazepine (n = 17). Evaluation of clinical data, neuropsychological assessment, quantitative spectral electroencephalogram (EEG), and somatosensory- and visual-evoked potentials at baseline and after a 3 months' maintenance ...
Takahashi T - - 1990
We studied the influence of indeloxazine hydrochloride (IH) upon photic driving responses (PDRs) elicited by a 5 Hz flickering dot pattern and red flicker stimuli. Comparisons were made from a total of 22 elderly patients. By oral IH administration, clinical improvement was found in 12 patients with cerebral arteriosclerosis (improved ...
Celsis P - - 1990
Cognitive, haemodynamic and EEG lateral asymmetries have been quantified in 20 patients with Primary Degenerative Dementia (PDD) and in 20 age-matched normal volunteers. Normalized asymmetry scores were calculated from the data obtained with a test battery, with SPECT and with quantitative EEG. Significant correlations were found between cognitive, haemodynamic and ...
Hooijer C - - 1990
In a longitudinal study, slowing of the EEG in SDAT patients and elderly controls is investigated using both visual and power spectral analyses. For this a reliability study in 20 SDAT patients is performed and results for intra-rater, inter-rater and test-retest reliability (in 24 h) are used in the selection ...
Lepola U - - 1990
Fifty-four patients with panic disorder were investigated using extensive electroencephalographic (EEG) recordings and computerized tomography (CT). Fifteen (28%) of these patients had previously been treated for temporal lobe epilepsy or were considered to have another neurological disorder. EEG recordings showed increased slow-wave activity in 13 (24%) patients and CT scan ...
Brigell M G - - 1990
We analyzed electroencephalographic (EEG) activity and spatial distribution of the pattern-reversal visual evoked potential (PVEP) in 20 patients with unilateral lesions in the retrochiasmal visual pathways. Focal abnormalities that were consistent with lesion location were present in the topographically analyzed EEG or VEP of 85% of the patients, compared with ...
Miyauchi T - - 1990
We undertook a study of electroencephalograms (EEGs) in 30 right-handed, untreated patients (27.3 +/- 10.0 years; hebephrenic, 16; paranoid, 12; residual, 2) who fulfilled ICD-9 criteria for schizophrenia and compared them with sex- and age-matched controls by using the percentage of power in six EEG frequency bands calculated as a ...
Brick J F - - 1990
Previous studies have suggested that EEG may be helpful in the diagnosis of herpes encephalitis (HE). To further define the value of EEG in an acutely ill, febrile, encephalopathic patient suspected as having encephalitis, we reviewed initial preoperative EEGs with the results of cerebral biopsies in 24 consecutive patients suspected ...
Rice D M - - 1990
Resting 32-channel topographical measures of EEG slow activity were compared in 12 elderly controls and 12 patients with senile dementia of the Alzheimer type. The patients had higher amplitude delta and theta than controls, especially in the left temporal regions. This greater amount of low frequency EEG activity in the ...
Grossi D - - 1990
Two hundred and seventy-nine consecutive patients referred for transient loss of consciousness, compatible with syncope, underwent head-up tilt to 70 degrees during polygraphic (EEG, ECG, pneumographic) and blood pressure monitorings. Vasovagal syncopes occurred in 28 patients with the following EEG changes: progressive slowing until the appearance of middle or high ...
Yamano T - - 1990
In 18 (40%) of 45 patients with CPS, paroxysmal discharges were hard to be found on their interictal EEG examinations. These patients were, however, not different from the other 27 patients with paroxysmal discharges on EEG as for the onset, prognosis for attack, complication of generalized tonic-clonic seizure and febrile ...
Ugawa Y - - 1990
The onset and offset of electromyographic (EMG) silence were studied physiologically by silent period locked averaging method (SPLA) combined with a computer-assisted method for detecting EMG changes in 11 patients with asterixis of various aetiologies. The onset followed the EMG discharge which was closely associated with a sharp wave probably ...
Pistarini C - - 1990
The authors studied a group of patients with ideomotor apraxia (IMA) to verify if these patients had some difficulties in gesture learning task in respect to non-apraxic patients and normal control subjects. The results show that learning difficulties are present in patients with IMA. Apraxic patients are not able to ...
Horie T - - 1990
An EEG frequency analysis using the wave-form recognition method was performed in different stages of senile dementia (SD), evaluated according to the Hasegawa Dementia Rating Scale (HDS), and the differences in EEG changes between patients with Alzheimer's disease (AD) and patients with SD were studied. We found that the EEG ...
Matricardi M - - 1990
We studied five children (1 boy and 4 girls) with self-induced pattern-sensitive epilepsy. All patients had refractory epilepsy with multiform, though mainly myoclonic, seizures and medium grade to severe mental retardation. Spontaneously self-induced seizures were documented in all cases by EEG. All the patients underwent full neurophysiological assessment (baseline EEG ...
Luisto M - - 1990
In a 16-year nationwide study in Finland 106 patients were diagnosed as having tetanus. Tetanus was diagnosed on the first visit to a doctor in half the patients, it was suspected in 28% but not considered in 22%. Diagnosis of tetanus may be delayed if a patient is elderly or ...
Synek V M - - 1990
The validity of a recently published EEG grading scale applied to patients with acute head injuries has been investigated. This scale is based on 15 individual grades and subdivisions and 3 major groups: 4 patterns are benign regarding survival, 4 are of uncertain significance and 7 patterns are prognostically malignant. ...
Hennekam R C - - 1990
Metacarpophalangeal pattern profile (MCPP) was determined in 49 radiographs of 40 patients with Rubinstein-Taybi syndrome. Two recognizable hand profiles were seen, depending on the configuration of the thumb and on age. Patients with a straight thumb showed a short first proximal phalanx, and short third medial phalanx. Patients with a ...
Primavera A - - 1990
Clinical records and EEGs of 114 consecutive patients with clinical diagnosis of Alzheimer's disease have been reviewed. The EEGs of 15 patients (13%) contained triphasic waves. Triphasic waves were always atypical as they occurred singularly or in short bursts, and/or they had occipital predominance, and/or they were bilateral but asymmetrical. ...
Devinsky O - - 1990
We studied 19 young adults (19 to 37 years old) and 9 older patients (42 to 66 years old) with Down's syndrome (DS) and a control group of 13 healthy adults (22 to 38 years old) to investigate the relation of electroencephalographic (EEG) alpha background to cognitive function and cerebral ...
Andersen A R AR University Clinic of Neurology, Rigshospitalet, Copenhagen, - - 1990
Twenty-eight patients with drug resistant temporal lobe epilepsy (DRTLE) were studied using single photon emission computed tomography (SPECT) using xenon-133 inhalation and Tc99m-d, 1-HMPAO with TOMOMATIC 64 as part of a presurgical evaluation programme. The visually evaluated flow-images were studied after blinding and the results subsequently compared to the EEG, ...
Watkins D - - 1989
Functional methionine synthase deficiency is generally characterized by homocystinuria and hypomethioninemia in the absence of methylmalonic aciduria. Patients are divided into two classes, cblE and cblG, on the basis of complementation analysis. Presentation has usually been in the first 2 years of life, but one patient came to medical attention ...
Bridgers S L - - 1989
Assessment of the importance of interictal epileptiform abnormalities discovered with cassette electroencephalographic (EEG) monitoring requires some appreciation of the frequency with which such abnormalities may be encountered in individuals without epilepsy. From a clinical experience involving more than 2500 patients, we have defined a group of 184 patients referred because ...
So N - - 1989
Electrophysiological studies (EEG, evoked potentials, nerve conduction and EMG) in 13 patients with myoclonus epilepsy with ragged red fibres (MERRF) are presented. The most notable findings are the presence of atypical irregular generalized spike and wave discharges arising from an abnormal EEG background (9 patients), focal epileptiform abnormalities (6 patients) ...
Bahamon-Dussan J E - - 1989
Triphasic waves (TWs) are a distinctive, but nonspecific, EEG pattern found in metabolic encephalopathies and a variety of other neurologic conditions. The prognostic value of TWs was studied in 30 patients with altered state of consciousness. Patients were either comatose (18 patients) or very lethargic (12 patients). Triphasic waves were ...
Pallotta R - - 1989
We studied dermatoglyphic traits in 27 patients (12 males and 15 females) with neurofibromatosis type I (NF-1) to verify which characteristics may be considered typical of this disorder. The frequency of digital central pockets in the patients was significantly greater than in control individuals (P less than .005), but when ...
Mimaki T - - 1989
Xeroderma pigmentosum associated with neurological abnormalities is a less familiar neurocutaneous disorder. In this report, 35 patients with group A xeroderma pigmentosum were assessed for neurological complications. Of these, 17 showed microcephaly and 24 mental retardation. Of 25 patients over 7 years of age, 22 had sensorineural deafness and 12 ...
Koponen H - - 1989
Spectral analysis of EEG was conducted for 51 elderly delirious patients meeting the Diagnostic and Statistical Manual of Mental Disorders III (DSM-III) criteria and for 19 controls. As a whole group, and also when subdivided according to the type of delirium, severity of cognitive decline or the type of central ...
Tasker R C - - 1989
Thiopentone anaesthesia was used in the treatment of seizures in 19 infants and young children. Nine had a pre-existing seizure disorder without acute cerebral injury and 10 had status epilepticus secondary to an acute cerebral illness. Clinical details, drug levels and findings from serial multichannel electroencephalograms (EEG) and continuous 1 ...
Luisto M - - 1989
To assess the brain involvement caused by tetanus, we examined the EEGs of 39 patients recovered from tetanus and those of 39 sex- and age-matched controls. The patients had significantly more frequent and more severe EEG abnormalities than their controls. The most marked difference was in the occurrence of diffuse ...
Thatcher R W - - 1989
Measures of EEG power spectral analyses were obtained from a total of 608 mild head trauma patients and 108 age-matched normal subjects. A training-set discriminant function was first developed from 264 mild head-injured patients and 83 age-matched controls yielding an overall discriminant classification accuracy of 94.8%. The first independent cross-validation ...
Berstad J - - 1989
Twenty-six patients with previous heavy exposure to organic solvents were admitted to a neurological department during a 1 1/2 year period. They were studied with a battery of tests, including general medical and neurological examinations, neuropsychological tests, electroencephalography (EEG) and neurography with electromyography (EMG), and cerebral computerized tomography (CT). The ...
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