Comparison between Forced Air and Intravenous Fluid
Warmer in Gynecologic Laparoscopic Surgery:
A Randomized Trial
Warunee Boayam BNS1, Phongthara Vichitvejpaisal MD, PhD1, Pawan Suton BNS1, Sarisa Tapala BNS2
Affiliation :
1 Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
2 Department of Perioperative Nursing, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
Background : Peri-operative hypothermia is a common problem in anesthesia.
Objective : To compare the difference between core and room temperature in patients undergoing gynecologic laparoscopic surgery
by using forced air and intravenous (cid:976)luid warmer.
Materials and Methods: After IRB approval COA: Si201/2016, the present study has been registered at ClinicalTrials.gov
NCT02990429. A prospective experimental study was conducted with 90 patients. All participants were randomized into two
groups, A) receiving intra-operative forced air warming, and B) having intra-operative intravenous (cid:976)luid via a (cid:976)lowing warmer. The
core and room temperatures were measured at 15-minute interval until the end of surgery. The data was expressed as means and
standard deviation. The p-value lower than 0.05 was considered statistical signi(cid:976)icance at 95% con(cid:976)idence interval.
Results : Eighty-six patients completed the trial. Temperature of both groups appeared to decrease insigni(cid:976)icantly after induction,
but it showed a slightly lower in group B (22.8±1.3°C) as compared to group A (22.9±1.0°C). In addition, group A (35.4±0.7°C)
presented a little higher temperature than that of group B (35.2±0.8°C) in the recovery room.
Conclusion : The forced air warmer was as clinically effective as the (cid:976)luid warmer in gynecologic laparaoscopic surgery.
Keywords : Hypothermia, Gynecologic laparoscopic surgery, General anesthesia
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