Open AccessChange in Bispectral Index During Epileptiform Electrical Activity Under Sevoflurane Anesthesia in a Patient with Epilepsy
Author(s) -
Mieko Chinzei,
Shigehito Sawamura,
Masakazu Hayashida,
Takayuki Kitamura,
Hisayoshi Tamai,
Kazuo Hanaoka
Publication year - 2004
Publication title -
anesthesia and analgesia/anesthesia and analgesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.404
H-Index - 201
eISSN - 1526-7598
pISSN - 0003-2999
DOI - 10.1213/01.ane.0000117282.72866.26
Subject(s) - bispectral index , electroencephalography , anesthesia , medicine , hypnotic , epilepsy , sevoflurane , burst suppression , propofol , psychiatry
We observed abnormal fluctuation in Bispectral Index (BIS) caused by repeated alternations between two electroencephalographic (EEG) waveform patterns in a patient with a recent history of epileptic seizure under sevoflurane anesthesia. The repetitive development of the abnormal EEG changes (slow delta with or without spike) and the fluctuation in BIS disappeared almost immediately after administration of anticonvulsants. BIS may give useful information not only on the sedative-hypnotic state, but also on the development of and recovery from abnormal epileptiform EEG activity.