A preliminary study on delayed vestibulo-cerebellar effects of Tokyo Subway Sarin Poisoning in relation to gender difference: Frequency analysis of postural sway

Kazuhito Yokoyama, Shunichi Araki, Katsuyuki Murata, Mariko Nishikitani, Tetsu Okumura, Shinichi Ishimatsu, Nobukatsu Takasu

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To evaluate delayed (long-term) effects of acute sarin poisoning on postural balance, nine male and nine female victims of the Tokyo Subway Sarin Poisoning in Japan (sarin cases) were examined by computerized posturography 6-8 months after the poisoning. Their plasma cholinesterase activities (ChE) on the day of the poisoning (March 20, 1995) were 13-95 (mean 68.2) IU/l for females and 19-131 (mean 75.9) IU/l for males, which were not significantly different between the two sexes. In females, the postural sway of low frequency (0-1 Hz) in the anterior-posterior direction and area of sway with eyes open was significantly larger in the cases than in the controls. Romberg quotients for the low-frequency sway in the anterior-posterior direction for females and low-frequency sway and length of sway in the medio-lateral direction for males were significantly related to log ChE. It is suggested that a delayed effect on the vestibulo-cerebellar system was induced by acute sarin poisoning; females might be more sensitive than males.

元の言語英語
ページ(範囲)17-21
ページ数5
ジャーナルJournal of Occupational and Environmental Medicine
40
発行部数1
DOI
出版物ステータス出版済み - 1 1998

All Science Journal Classification (ASJC) codes

  • Public Health, Environmental and Occupational Health

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