Preoperative Warming Versus no Preoperative Warming for Maintenance of Normothermia in Women Receiving Intrathecal Morphine for Cesarean Delivery: A Single-Blinded, Randomized Controlled Trial

Anesthesia and Analgesia
Judy MundayEdward Gosden

Abstract

Rates of hypothermia for women undergoing spinal anesthesia for cesarean delivery are high and prevention is desirable. This trial compared the effectiveness of preoperative warming versus usual care among women receiving intrathecal morphine, which is thought to exacerbate perioperative heat loss. A prospective, single-blinded, randomized controlled trial compared 20 minutes of forced air warming (plus intravenous fluid warming) versus no active preoperative warming (plus intravenous fluid warming) in 50 healthy American Society of Anesthesiologists graded II women receiving intrathecal morphine as part of spinal anesthesia for elective cesarean delivery. The primary outcome of maternal temperature change was assessed via aural canal and bladder temperature measurements at regular intervals. Secondary outcomes included maternal thermal comfort, shivering, mean arterial pressure, agreement between aural temperature, and neonatal outcomes (axillary temperature at birth, Apgar scores, breastfeeding, and skin-to-skin contact). The intention-to-treat population was analyzed with descriptive statistics, general linear model analysis, linear mixed-model analysis, χ test of independence, Mann-Whitney, and Bland-Altman analysis. Full e...Continue Reading

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Citations

Mar 14, 2018·Anesthesia and Analgesia·Jonathan V Roth
Mar 14, 2018·Anesthesia and Analgesia·Judy MundayEdward Gosden
Aug 22, 2020·Journal of Multidisciplinary Healthcare·Judy MundayFiona Coyer
Feb 26, 2020·MCN. the American Journal of Maternal Child Nursing·Michelle Dendis, Katie Hooven

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