• J Neurosurg Anesthesiol · Apr 1997

    Case Reports

    Cerebral oximetry during circulatory arrest for aneurysm surgery.

    • S K Samra and W F Chandler.
    • Department of Anesthesiology, University of Michigan Medical Center, Ann Arbor, USA.
    • J Neurosurg Anesthesiol. 1997 Apr 1; 9 (2): 154-8.

    AbstractA patient underwent surgical clipping of a complex giant intracranial carotid aneurysm with the aid of extracorporeal circulation and complete hypothermic circulatory arrest. During the entire procedure, cerebrovascular oxygen saturation (ScO2) was spectroscopically measured. The patient experienced circulatory arrest for 34 min; for 15 of the 34 min ScO2 was < 34% (minimum 32%). The patient tolerated the procedure without new neurological deficit, thus demonstrating that the previously suggested "critical" level of 35% ScO2 is not absolute.

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