Patient-controlled analgesia and intra-operative suggestion.
In a double-blind randomised study, we investigated the influence of positive intra-operative suggestions, presented to anaesthetised patients undergoing total abdominal hysterectomy, on postoperative pain, nausea and vomiting. One hundred and forty patients were randomly allocated to listen to one of four tapes containing either white noise or positive suggestions. The positive suggestions related to pain, postoperative nausea and vomiting, or both. We found that the positive intra-operative suggestions had no beneficial effects in reducing postoperative pain or nausea scores, nor was the consumption of morphine or anti-emetics reduced.
Dawson
P
P
Department of Anaesthetics, Swindon and Marlborough NHS Trust, Okus Road, Swindon SN1 4JU, UK.
Van Hamel
C
C
Wilkinson
D
D
Warwick
P
P
O'Connor
M
M
D000328:Adult; D016058:Analgesia, Patient-Controlled / Q000009:adverse effects*; D000704:Analysis of Variance; D000768:Anesthesia, General; D016009:Chi-Square Distribution; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D010147:Pain Measurement; D010149:Postoperative Pain / Q000517:prevention & control* / Q000523:psychology; D019990:Perioperative Care / Q000379:methods*; D020250:Postoperative Nausea and Vomiting / Q000517:prevention & control* / Q000523:psychology; D018709:Statistics, Nonparametric; D013404:Suggestion; D016896:Treatment Outcome