The effects of CO 2 pneumoperitoneum at different temperature and humidity on hemodynamic and respiratory parameters and postoperative pain in gynecological laparoscopic surgery: A prospective randomized controlled study

摘要

BackgroundIt is recommended to heat and humidity CO2in laparoscopic surgery to prevent postoperative pain and hypothermia but information about its effects on hemodynamic and respiratory parameters is limited. We aimed to investigate the effects of standard and heated-humidified CO2on hemodynamic and respiratory parameters, body temperature and pain in healthy patients.MethodsOne hundred patients who underwent total laparoscopic hysterectomy for benign pathology were divided into two groups: Group CD (cold-dry) patients were administered standard CO2, while Group HH (heated-humidified) patients were administered 95% humidified insufflation at 37?°C. Hemodynamic and respiratory parameters, body temperature, pain score and blood count parameters were recorded.ResultsA total of 96 patients were included in the study, taken from the 100 patients. Group HH (n:47) had only higher systolic blood pressure at 75, mean blood pressure at 50 and 55 and a lower heart rate between 15 and 45?min (p:0.049, 0.037, 0.013 respectively). Pain score, morphine consumption, end-tidal CO2and arterial blood gas values were not different between the groups, with only body temperature from 40?min and minimum value being significantly higher (at a difference of 0.86–1.04?°C) in Group HH. Postoperative leukocyte, neutrophil and NLR (neutrophil-leukocyte ratio) were found to be higher in this group (p?