EEG and polygraphical study of vibratory generalized tonic-clonic seizures (vibratory GTCS)

M. Ogihara, A. Hoshika, T. Matsuno, T. Miyajima, K. Kinoue, C. Y. Wang, N. Yamada, Y. Oana

研究成果: 雜誌貢獻文章同行評審

1 引文 斯高帕斯(Scopus)


Vibratory phenomena of GTCS were analyzed by simultaneous video-EEG-polygraphic recordings in patients with severe myoclonic epilepsy (SME) and high-voltage grand mal epilepsy (HVS-grand mal). According to Gastaut, grand mal in adults consists of a tonic phase of 10-20 seconds, intermediate vibratory phase of several seconds, and clonic phase lasting for about 30 seconds. Our results demonstrated that; (1) the duration of the intermediate vibratory phase ranged 15-20 seconds, and it is significantly longer than that of adult grand mal, (2) the vibratory movements appeared when the frequency of muscular contractions decreased to 4-6 Hz, (3) the asynchronous muscular contractions of the extremities give the appearance of more rapid and tremorous movements than are actually happening, (4) the asynchrony is also observed in the clonic phase. It is speculated that such a very atypical GTCS can be ascribed to immaturity or disturbance of synchronization mechanism between the two hemispheres, which may be caused by incomplete myelination, immature synaptic structures, or disturbance of cellular interaction in patients with SME and HVS-grand mal.

頁(從 - 到)264-271
期刊Journal of the Japan Epilepsy Society
出版狀態已發佈 - 1994

ASJC Scopus subject areas

  • 神經病學(臨床)


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