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beach chair position spontaneous ventilation

Gregory W Fischer, Toni M Torrillo, Menachem M Weiner, Meg A Rosenblatt
Four 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)...
July 2009: Pain Practice: the Official Journal of World Institute of Pain
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