Incidence and Associated Factors of Postoperative Shivering in Patients Undergoing Transurethral Urologic Surgery under Spinal Anesthesia
Keywords:
Spinal anesthesia, Transurethral urological surgery, Recovery room, Postoperative shiveringAbstract
Postoperative shivering is a common complication that can significantly impact patients. To determine the incidence and identify factors associated with postoperative shivering in the recovery room among patients undergoing transurethral urologic surgery under spinal anesthesia, a retrospective case-control study was conducted by reviewing medical records. The urologic patients aged 15–90 years undergoing spinal anesthesia at King Narai Hospital during January 2019 and December 2022 were included. Fifteen shivering patients were identified and labeled as a case group. Ninety-six patients were enrolled as a control group. The incidence rate was presented as a percentage. Risk factors were analyzed using univariate analysis and multivariate analysis to identify factors associated with postoperative shivering. The results were reported using the adjusted odds ratio and 95% confidence interval (CI).
The incidence of postoperative shivering was 13.5%. No significant associations were found among patient demographics, anesthetic factors, surgical factors and the occurrence of postoperative shivering in recovery room.
Since all patients in this study received warmed intravenous fluids before anesthesia and were covered with forced-air warming blankets throughout the surgery, the observed incidence of postoperative shivering was lower than referenced studies. However, due to the limited sample size, the study could not identify significant risk factors associated with postoperative shivering. Future studies with larger sample sizes are recommended to further investigate this issue.
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