Department of Obstetrics and Gynecology, Katholieke Universiteit Leuven, Leuven, Belgium.
Am J Obstet Gynecol. 2011 Oct;205(4):392.e1-7. doi: 10.1016/j.ajog.2011.06.091. Epub 2011 Jun 29.
This study was conducted to document quantitatively the intraperitoneal temperature and desiccation during laparoscopic surgery. The temperature, relative humidity, and flow rate were measured in vitro and during laparoscopic surgery, at the entrance and at the exit of the abdomen. This permitted us to calculate desiccation for various flow rates using either dry CO(2) or CO(2) humidified with 100% relative humidity at any preset temperature between 25 and 37°C. The study showed that desiccation, both in vitro and in vivo, varies as expected with the flow rates and relative humidity while intraperitoneal temperature varies mainly with desiccation. Temperature regulation of bowels is specific and drops to the intraperitoneal temperature without affecting core body temperature. With a modified humidifier, desiccation could be eliminated while maintaining the intraperitoneal temperature between 31 to 32°C.
本研究旨在定量记录腹腔镜手术中的腹腔内温度和干燥情况。我们在体外和腹腔镜手术期间测量了温度、相对湿度和流速，分别在腹部进出口处进行测量。这使我们能够计算在任何预设温度（25 至 37°C 之间）下，使用 100%相对湿度加湿的干燥 CO₂或干燥 CO₂以各种流速时的干燥情况。研究表明，体外和体内的干燥情况均如预期那样随流速和相对湿度变化，而腹腔内温度主要随干燥情况变化。肠道的温度调节是特定的，会降至腹腔内温度而不会影响核心体温。使用改良的加湿器，可以在维持腹腔内温度在 31 至 32°C 之间的同时消除干燥。
