PURPOSE
This study aimed to evaluate effects of heated-humidified anesthetic gas on body temperature, acid-base balance, blood cortisol, and lymphocyte in the elderly patients with colorectal cancer during laparoscopic surgery.
METHODS
This study utilized an experimental design with a randomized controlled trial. A total of 60 patients with colorectal cancer were randomly assigned to one of two groups: either to the heated-humidified anesthetic gas group or to the usual anesthetic gas group. The following variables were measured: body temperature, acid-base balance, blood cortisol, and lymphocyte. The data were analyzed with independent t-test, χ2 test, ANCOVA, and repeated ANOVA using SPSS/WIN 20.0.
RESULTS
There was a significant difference in body temperature between the experimental group and the control group during laparoscopic surgery (F=41.18, p < .001). However, no statistically significant differences were found in acid-base balance, blood cortisol, and lymphocyte between two groups.
CONCLUSION
In this study, the body temperature during laparoscopic surgery was more effectively maintained with the heated-humidified anesthetic gas compared with the regular anesthetic gas. Therefore, the heated-humidified anesthetic gas might be considered to maintain the body temperature during laparoscopic surgery especially in the elderly population.

Citations

• The effects of warmed carbon dioxide pneumoperitoneum nursing care on core body temperature, acid-base balance, and lymphocytes in older patients with cancer in Korea: a randomized controlled trial
  Hyosun Park, Nayeon Shin, Jeong-Heum Baek
  Journal of Korean Biological Nursing Science.2025; 27(4): 598.     CrossRef
• Living experiences of older patients with cancer amid the COVID-19 pandemic: A phenomenological study
  Yong Hwan Hyeon, Kyoung Ja Moon
  Journal of Korean Gerontological Nursing.2024; 26(1): 54.     CrossRef