腹腔镜检查时腹腔内的气体交换。
Gas exchange in abdominal cavity during laparoscopy.
作者信息
Cameron A E, Dear G L, Pocock T J, Tennant R W
出版信息
J R Soc Med. 1983 Dec;76(12):1015-8. doi: 10.1177/014107688307601207.
Gas exchange occurring in the abdominal cavity during laparoscopy, using carbon dioxide as the insufflating gas, was investigated in 25 female patients being ventilated with 66.6% nitrous oxide and 33.3% oxygen. The gas remaining in the abdomen at the end of the procedure was collected and measurements were made using an infrared spectrometer, a paramagnetic analyser and a mass spectrometer. The mean duration of the laparoscopy was 9.5 minutes and the mean volume of carbon dioxide delivered was 6.8 litres. Nitrous oxide concentration in the abdomen was found to increase significantly with the duration of the procedure, varying from 1.4% to 12.8% with a mean of 4.3% (s.d. +/- 2.4). Oxygen concentration measured from 0.1 to 1.8% with a mean of 0.7% (s.d. +/- 0.4). Nitrogen concentration varied from zero to 1.8%, having a mean concentration of 0.8% (s.d. +/- 0.5). Carbon dioxide content was from 85.7 to 99.6% with a mean concentration of 94.2% (s.d. +/- 3.1).
在25例使用66.6%氧化亚氮和33.3%氧气进行通气的女性患者中，研究了腹腔镜检查期间腹腔内使用二氧化碳作为充气气体时的气体交换情况。手术结束时留在腹腔内的气体被收集起来，并使用红外光谱仪、顺磁分析仪和质谱仪进行测量。腹腔镜检查的平均持续时间为9.5分钟，输送的二氧化碳平均体积为6.8升。发现腹腔内氧化亚氮浓度随手术时间显著增加，从1.4%到12.8%不等，平均为4.3%（标准差±2.4）。氧气浓度测量值为0.1%至1.8%，平均为0.7%（标准差±0.4）。氮气浓度从零到1.8%不等，平均浓度为0.8%（标准差±0.5）。二氧化碳含量为85.7%至99.6%，平均浓度为94.2%（标准差±3.1）。
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