Whitney A M
AANA J. 1990 Jun;58(3):212-5.
This study determined the efficiency of a reflective blanket in preventing hypothermia during intra-abdominal gynecological procedures. Forty female patients were studied. A table of random numbers was used to assign patients to the reflective blanket group (experimental) or the warmed cotton blanket group (control). Esophageal and room temperatures were measured. Data were recorded regarding age, height, weight, body surface area, first-hour intravenous fluid volume, time from induction to skin incision and time from skin incision to peritoneal incision. The study showed no significant differences between groups in regard to esophageal or room temperatures (ANOVA, p greater than .05). No significant differences between groups in regard to patient characteristics were found (ANCOVA). No correlation was found between esophageal temperature and room temperature in either group. A significant decrease in esophageal temperatures was found in both groups during the first 45 minutes of the study (p less than .01), after which temperatures stabilized. In conclusion, the reflective blanket was no more efficient than warmed cotton blankets in preventing intraoperative hypothermia. Previous studies showing the greatest decrease in temperature occurred within the first hour of anesthesia and surgery were supported. The reflective blanket may be useful for operating rooms where the storage and heating of cotton blankets is not feasible due to limited space or cost.
本研究确定了一种反光毯在妇科腹腔内手术期间预防体温过低的效果。对40名女性患者进行了研究。使用随机数字表将患者分配到反光毯组（实验组）或温暖棉毯组（对照组）。测量了食管温度和室温。记录了有关年龄、身高、体重、体表面积、首小时静脉输液量、诱导至皮肤切开的时间以及皮肤切开至腹膜切开的时间的数据。研究表明，两组在食管温度或室温方面无显著差异（方差分析，p大于0.05）。在患者特征方面，两组之间未发现显著差异（协方差分析）。两组中食管温度与室温之间均未发现相关性。在研究的前45分钟内，两组的食管温度均显著下降（p小于0.01），之后温度趋于稳定。总之，在预防术中体温过低方面，反光毯并不比温暖棉毯更有效。先前显示体温下降幅度最大发生在麻醉和手术的第一小时内的研究得到了支持。反光毯可能适用于因空间有限或成本原因而无法储存和加热棉毯的手术室。
