Diseases of the colon and rectum
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Randomized Controlled Trial
Pudendal block with bupivacaine for postoperative pain relief.
Postoperative pain after hemorrhoidectomy is very intense, and the pain at the first postoperative defecation is very intense. Based on our pilot initial results that reflected reduced postoperative pain, we conducted a prospective, randomized, double-blind study to investigate whether the analgesia produced by bilateral pudendal nerve block using a nerve-stimulator could provide better postoperative pain relief compared with the routine technique in use in the Department of Anesthesia. ⋯ In this controlled study, bilateral pudendal nerve block oriented by nerve stimulator provided excellent analgesia with low need for opioids, without local or systemic complications, and without urinary retention.