Effect of Preoperative Warming by Forced-Air Warming Blanket on Postoperative Body Temperature and Shivering in Patients Undergoing Elective Cesarean Section
Keywords:
cesarean section, preoperative warming, body temperature, shivering, forced-air warming blanketAbstract
This quasi-experimental study aimed to examine the effect of preoperative warming by a forced-air warming blanket on postoperative body temperature and shivering in patients undergoing elective cesarean section at the OB-GYN operating theater at Maharaj Nakorn Chiangmai Hospital. A total of 88 participants were recruited using purposive sampling and assigned equally to the experimental and control groups (n = 44). The control group received usual care between January 2020 and November 2020, while the experimental group received prewarming with a forced-air warming blanket between May 2021 and October 2021. Data were collected using a demographic information sheet, anesthetic records, a core temperature recorder, and a shivering symptom assessment form. Core temperature was measured at the tympanic membrane, and shivering was observed in patients at the post–anesthetic care unit (PACU). The obtained data were recorded in a datasheet and analyzed using descriptive statistics, the chi-square test, the independent t-test, and the Mann-Whitney U-test.
The results found that the mean core body temperature in the experimental and control groups showed no statistically significant difference at the .05 level. The incidence of shivering in the experimental group was statistically significantly lower than in the control group at the .05 level. These findings suggested that nurses should provide preoperative warming by forced-air warming blankets to patients undergoing elective cesarean sections to prevent shivering.
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