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Data were analyzed using the t-test, chi-square test, and repeated-measures analysis of variance.Results: Significant differences were observed between the experimental and control groups in body temperature (F = 2.47, p = .010), acid\u2013base balance (F = 2.39, p = .015), and lymphocyte percentage (F = 4.45, p = .002) during laparoscopic surgery.Conclusion: Warmed carbon dioxide pneumoperitoneum was more effective in preventing intraoperative hypothermia induced by general anesthesia than non-heated gas. These findings suggest that this intervention may be beneficial for older patients with cancer undergoing laparoscopic surgery.<\/jats:p>","DOI":"10.7586\/jkbns.25.055","type":"journal-article","created":{"date-parts":[[2025,11,24]],"date-time":"2025-11-24T06:39:07Z","timestamp":1763966347000},"page":"598-606","update-policy":"https:\/\/doi.org\/10.7586\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["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 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