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- Gregory W Fischer, Toni M Torrillo, Menachem M Weiner, and Meg A Rosenblatt.
- Anesthesiology and Cardiothoracic Surgery, Mount Sinai School of Medicine, New York, New York 10029, USA.
- Pain Pract. 2009 Jul 1;9(4):304-7.
AbstractFour cases of ischemic injury have been reported in patients undergoing orthopedic surgery in the upright position. We describe the use of cerebral oximetry as a monitor of the adequacy of cerebral perfusion in a 63-year-old woman who underwent arthroscopic rotator cuff surgery in a beach chair under general anesthesia. During positioning, a decrease in blood pressure was accompanied by a decrease in cerebral oxygen saturation (S(ct)O(2)) and was treated with phenylephrine. When spontaneous ventilation resumed, an increase in end-tidal carbon dioxide was accompanied by an increase in S(ct)O(2). Cerebral oximetry may prove useful as a guide monitor and manage nonsupine patients.
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