Anesth Analg 2004;98:1036-1038
© 2004 International Anesthesia Research Society
doi: 10.1213/01.ANE.0000103261.86889.DE
TECHNOLOGY, COMPUTING, AND SIMULATION
Unusually Low Bispectral Index Values During Emergence from Anesthesia
Satoshi Hagihira, MD, PhD*,
Kenta Okitsu, MD , and
Maki Kawaguchi, MD
*Department of Anesthesiology, Osaka University Graduate School of Medicine, and the
Department of Anesthesiology, Osaka Prefectural Habikino Hospital, Osaka, Japan
Address correspondence and reprint requests to Satoshi Hagihira, Department of Anesthesiology, Osaka University Graduate School of Medicine, 22 Yamadaoka, Suita City, Osaka, Japan 5650871. Address email to hagihira{at}masui.med.osaka-u.ac.jp
We observed unusually low BIS values during emergence from anesthesia apparently caused by misanalysis (as "suppression") of low voltage electroencephalogram.
IMPLICATIONS: When BIS values do not adequately correspond with clinical status, it is necessary to check raw electroencephalogram waveforms to more clearly characterize patient status.
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