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From the Department of Anesthesiology, Tokushima Municipal Hospital, Tokushima, Japan.
Address correspondence and reprint requests to Kiyo Tominaga, 2-34 Kitajosanjima-Cho, Tokushima 770-0812, Japan. Address e-mail to kiyokorin{at}yahoo.co.jp.
BACKGROUND: In this randomized, single-blind, controlled study, we evaluated whether the 20° reverse-Trendelenburg position had an effect on postoperative nausea and vomiting in patients undergoing thyroid surgery.
METHODS: Patients (n = 224) were given a standardized propofol anesthetic. Intraoperatively, patients were randomly assigned into two groups according to the tilt of the table maintained during surgery: patients were positioned with the neck extended and the table tilted with 20° reverse-Trendelenburg or with the neck extended and the table positioned at a horizontal tilt. All episodes of postoperative nausea, vomiting, nausea severity score, frequency of vomiting, and the use of antiemetics were recorded during the first 24 h after anesthesia. We divided this time period into 03 h and 324 h.
RESULTS: During the 03 h postoperative period, all observed episodes were comparable between groups. However, during the 324 h and the overall postoperative period, the incidence of nausea and/or vomiting, the nausea severity score, and frequency of vomiting were significantly less in the 20° reverse-Trendelenburg position.
CONCLUSION: The 20° reverse-Trendelenburg position effectively ameliorates postoperative nausea and/or vomiting.
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