Int J Med Sci 2022; 19(10):1548-1556. doi:10.7150/ijms.77578 This issue Cite

Research Paper

Clinical efficacy of short-term prewarming in elderly and adult patients: A prospective observational study

Sung-Ae Cho1, Sieun Yoon2, Seok-Jin Lee1, Young-Seok Jee1, Choon-Kyu Cho1, Tae-Yun Sung1✉

1. Department of Anaesthesiology and Pain medicine, Konyang University Hospital, Myunggok Medical Research Center, Konyang University College of Medicine, Daejeon, Korea.
2. Department of Anaesthesiology and Pain medicine, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea.

Citation:
Cho SA, Yoon S, Lee SJ, Jee YS, Cho CK, Sung TY. Clinical efficacy of short-term prewarming in elderly and adult patients: A prospective observational study. Int J Med Sci 2022; 19(10):1548-1556. doi:10.7150/ijms.77578. https://www.medsci.org/v19p1548.htm
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Abstract

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Background: Short-term prewarming effectively reduces intraoperative hypothermia in adult patients. However, few data exist regarding its efficacy in elderly patients. Elderly people have a reduced ability to regulate their body temperature, which affects the efficacy of prewarming. This study aimed to compare the clinical efficacy of short-term pre-warming in elderly patients with that in adult patients.

Methods: We enrolled 25 adult (20-50 years) and 25 elderly (> 65 years) patients scheduled for ureteroscopic stone surgery under general anaesthesia. All patients received preanaesthetic forced-air warming for 20 min. The core temperature was measured using an infrared tympanic thermometer during awakening and nasopharyngeal thermistors during anaesthesia. Incidence and severity of intraoperative hypothermia (< 36°C) was compared. Postoperative shivering and number of patients requiring active warming in the post-anaesthesia care unit were also assessed.

Results: Intraoperative hypothermia was more frequent in elderly than in adult patients (58.3% vs. 12.0%; relative risk 2.6; 95% confidence interval 1.5 to 4.6; effect size h = 1.010; p = 0.001). The severity of intraoperative hypothermia showed a significant intergroup difference (p = 0.002). Postoperative shivering was more frequent in elderly than in adult patients (33.3% vs. 8.0%, p = 0.037). A greater number of elderly patients in the post-anaesthesia care unit required active warming (33.3% vs. 8.0%, p = 0.037).

Conclusions: The effects of short-term prewarming on the prevention of hypothermia and maintenance of perioperative normothermia are not the same in the elderly and adult patients.

Keywords: Hypothermia, Geriatrics, Incidence, Perioperative care


Citation styles

APA
Cho, S.A., Yoon, S., Lee, S.J., Jee, Y.S., Cho, C.K., Sung, T.Y. (2022). Clinical efficacy of short-term prewarming in elderly and adult patients: A prospective observational study. International Journal of Medical Sciences, 19(10), 1548-1556. https://doi.org/10.7150/ijms.77578.

ACS
Cho, S.A.; Yoon, S.; Lee, S.J.; Jee, Y.S.; Cho, C.K.; Sung, T.Y. Clinical efficacy of short-term prewarming in elderly and adult patients: A prospective observational study. Int. J. Med. Sci. 2022, 19 (10), 1548-1556. DOI: 10.7150/ijms.77578.

NLM
Cho SA, Yoon S, Lee SJ, Jee YS, Cho CK, Sung TY. Clinical efficacy of short-term prewarming in elderly and adult patients: A prospective observational study. Int J Med Sci 2022; 19(10):1548-1556. doi:10.7150/ijms.77578. https://www.medsci.org/v19p1548.htm

CSE
Cho SA, Yoon S, Lee SJ, Jee YS, Cho CK, Sung TY. 2022. Clinical efficacy of short-term prewarming in elderly and adult patients: A prospective observational study. Int J Med Sci. 19(10):1548-1556.

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