Falsely increased bispectral index during endoscopic shoulder surgery attributed to interferences with the endoscopic shaver device.
Endoscopic shaver activity can cause falsely increased bispectral index (BIS) readings. Close observation of BIS during periods with no shaver activity will reveal the true BIS and can be used to titrate depth of anesthesia. The reason for these interferences remain unclear.
Hemmerling
Thomas M
TM
Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal (CHUM), Hôtel-Dieu, Université de Montréal, Québec, Canada. thomashemmerling@hotmail.com
Migneault
Brigitte
B
D004569:Electroencephalography; D004724:Endoscopy; D006801:Humans; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D012782:Shoulder / Q000601:surgery*