The influence of anesthetic choice on carotid endarterectomy outcome.

This study compared the technique of general and regional cervical block anesthesia for carotid endarterectomy. Three hundred sixty-eight patients undergoing 399 carotid endarterectomies were administered one of these alternative anesthetics as selected preoperatively by each patient and his or her physician. In 242 cases general anesthesia was used. The other 157 cases were done under regional cervical block anesthesia. Perioperative mortality was 1.0%. Nonfatal strokes occurred in 1.25%. There were significantly more strokes in the general anesthesia group. Perioperative blood pressure was unstable for a significantly longer period of time after general anesthesia (mean, 24.6 hours) as compared with regional cervical block anesthesia (mean, 2.1 hours). Furthermore, vasoactive drugs were required for significantly longer periods of time in the general anesthesia group.

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