The effect of spinal versus general anesthesia on postoperative pain and analgesic requirements in patients undergoing lower abdominal surgery.

Attempts to reduce central sensitization after tissue injury have led to the concept of preemptive analgesia. The aim of this study was to evaluate the effect of spinal versus general anesthesia on postoperative pain and analgesic requirements in patients undergoing lower abdominal surgery.Sixty women scheduled for lower abdominal surgery were randomly assigned to two groups of 30 patients each to receive spinal anesthesia (SA) or general...