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J Korean Neurol Assoc. 1987;5(1):13-23.
- Clinical Significance of Nasopharyngeal EEG in Patients with Psychomotor Seizure
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Il-Nam Sunwoo, M.D., Ki-Whan Kim, M.D., Seung-Min Kim, M.D.
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Department of Neurology, College of Medicine, Yeonsei University
- 정신운동성 간질에 있어서의 비인두전극을 이용한 뇌파검사의 임상적 의의
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선우일남, 김기환 , 김승민
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연세대학교 신경과.
- Abstract
- In the patients with epilepsy, especially in psychomotor epilepsy the epileptiform discharges occasionally has its origin from the basal structure of brain or the mesial side of temporal lobe which is not accessible to the standard surface EEG.
The nasopharyngeal electrode, which was introduced by Grinker and Serota in 1938
and modified several times, is a kind of special electrodes to investigate electrical
activity from the mesiobasal part of the temporal lobe, and there are several studies
about clincial usefulness of the nesopharyngeal EEGs with some controversies in other
countries. In this country, however, there is no reports about this topic, and in fact only
a few laboratories are known to use the nasopharyngeal electrode. To determine clinical
significance of nasapharyngeal EEG in patients with psychomotor seizure, the selecting
records of 123 cases who had been taken both standard surface and nasopharyngeal
EEG are analysed and compared with each other. Eight nine of cases are the patients
with seizure disorder including 13 simple partial seizure with or without secondary
generalization, 47 psychomotor seizure (or complex partial seizure) with or without
secondary generalization and 29 primary generalized seizure, diagnosed by history and
clincial findings. The other 34 cases are the patients with similar symptoms of
psychomotor seizure but without definite convulsion. The standard surface EEG revealed
48 (56%) of epileptiform activity, 24(28%) of nonspecific dysrrhytmia and 17(19%) of
normal record in 89 patients with seizure discharges. There are 38 patients who showed
spike or sharp wave on nasopharyngeal generalized seizures. In nonseizure cases,
however, epileptiform activity is not detected on nasopharyngeal electrodes. Five cases
are technically unsatisfactory. The significances of nasopharyngeal EEG in 38 with
epiletiform discharges on nasopharyngeal electrode(s) are; more definite and prominent
epileptiform activity in 17 and unexpected nasopharyngeal discharges in 10 patients
including 5 with normal standard surface EEGs. In 47 psychomotor seizure, 42 cases
(89%) reveal epileptiform discharges on standard surface and/or nasopharyngeal EEG
and the sensitivity of nasopharyngeal EEG (75%) is higher than that of standard surface
Keywords :
- 초록
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