[Relationship between seizure duration and bispectral index during modified electroconvulsive therapy].
BACKGROUND
The relationship between seizure duration and bispectral index (BIS) has not been studied well in modified electroconvulsive therapy (mECT).


METHODS
We studied the changes in BIS and recorded the seizure duration during mECT under propofol and suxamethonium anesthesia. We examined the relationship between seizure duration and BIS.


RESULTS
The BIS value immediately before turning on the electricity correlated with seizure duration. The range of BIS values that caused effective seizure duration were 53.6-58.8.


CONCLUSIONS
Our study shows the possibility of determining the moment of application of electricity in mECT by using BIS values.
Miyazaki
Shinichiro
S
Department of Anesthesiology, Osaka Medical College, Takatsuki 569-8686.
Muratani
Tadatoshi
T
Morimoto
Kenji
K
Shimizu
Sachiko
S
Tanaka
Motoshige
M
Minami
Toshiaki
T
D000328:Adult; D000368:Aged; D000771:Anesthesia, Intravenous; D004565:Electroconvulsive Therapy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods*; D015742:Propofol; D012189:Retrospective Studies; D012640:Seizures / Q000503:physiopathology*; D013390:Succinylcholine; D013997:Time Factors
D013390:Succinylcholine; D015742:Propofol