Perioperative cerebral ischaemia in cardiac surgery and BIS.

Anaesth Intensive Care

Department of Anesthesiology and Intensive Care, Groupe Hospitalier Timone, Marseilles, France.

Published: August 2005

A 46-year-old woman was monitored by bispectral index monitoring (BIS) during redo aortic and mitral valve replacement. On release of the aortic cross clamp there was a sudden, severe, unexplained, and sustained fall in the BIS value. Postoperatively, a CT scan was consistent with multiple ischaemic lesions. The lesions were presumed to be due to air embolism. This case suggests that a sudden unexplained and persistent fall in BIS may indicate cerebral ischaemia.

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Source
http://dx.doi.org/10.1177/0310057X0503300415DOI Listing

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