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Meta‐analysis of the effect of warm humidified insufflation on pain after laparoscopy. BJS 2008; 95: 950-956.

Published: 11th July 2008

Authors: T. Sammour, A. Kahokehr, A. G. Hill

Background

Studies on the use of warmed and humidified insufflation (WHI) in laparoscopic abdominal procedures to reduce pain have been inconclusive owing to small sample sizes.

Method

An electronic database search identified all randomized controlled trials (RCTs) on adults undergoing elective laparoscopic abdominal surgery under general anaesthesia in which the exposure group had WHI and the control group had standard cold and dry carbon dioxide. The outcome measure was pain by visual analogue score or morphine usage.

Results

Seven RCTs were included. Patients in the WHI group experienced a significant reduction in pain score at 6 h (P = 0·006), 1 day (P = 0·010) and 3 days (P < 0·001) after operation, and in morphine usage on day 2 (P = 0·040).

Conclusion

WHI reduces pain after laparoscopy. Copyright © 2008 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd.

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