Bleeker Chris P, Smits Bart, Vos Pieter E, Mourisse Jo M J
Department of Anesthesiology, Radboud University Nijmegen Medical Centre, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands.
Case Rep Med. 2010;2010:697185. doi: 10.1155/2010/697185. Epub 2010 Jun 3.
We describe a 76-year-old patient who suffered a brainstem TIA just before being anesthetised for cardiac surgery. The TIA was registered on BIS and resulted in a drop in BIS to a value of 60. When consciousness returned spontaneously, the BIS increased to 85. The relative use of the BIS during an operation is discussed. We believe that the lack of input from the brainstem to the frontal cortex resulted in the reduced cortical electrical activity as registered with the BIS.
我们描述了一位76岁的患者,他在接受心脏手术麻醉前刚刚发生了一次脑干短暂性脑缺血发作(TIA)。此次TIA通过脑电双频指数(BIS)监测到,导致BIS值降至60。当意识自发恢复时,BIS升至85。本文讨论了手术期间BIS的相对应用情况。我们认为,脑干向额叶皮质的输入缺失导致了BIS所记录的皮质电活动降低。