To analyze the effects of butorphanol and sufentanil on the treatment of chills in patients undergoing unilateral hernia repair with combined spinal-epidural anesthesia.

A total of 300 patients underwent unilateral hernia repair with combined spinal-epidural anesthesia in Chongqing Banan District People's Hospital from January 2019 to January 2021 were selected as the research subjects. According to different anesthesia methods, the patients were divided into group A and group B. 150 patients in group A received intravenous butorphanol, and 150 patients in group B received sufentanil intravenous injection. The treatment effects on chills were compared between the two groups. The hemodynamics before medication, 1, 5, 10 minutes after medication and after operation were compared. Visual analogue scale (VAS) and Ramsay sedation score (RSS) before operation (T0), 4 hours (T1), 12 hours (T2), 24 hours (T3) and 48 hours (T4) after operation were compared.

The total effective rate on chills in group A (96.00%) was significantly higher than that in group B (90.00%), and the difference was statistically significant (P<0.05). From 1 minutes after treatment to the end of the operation, the MAP, SpO₂ and HR have varying degrees of fluctuations compared with those before medication (P<0.05), but the differences between two groups were not statistically significant (P>0.05). At T1 to T4, the VAS score of group B was significantly lower than that of group A compared with time T0 (P<0.05), the RSS score of group B was significantly higher than that of group A (P<0.05).

Butorphanol can reduce the incidence of chills in patients undergoing unilateral hernia repair with combined spinal-epidural anesthesia, while sufentanil can exert a strong analgesic and sedative effect with a better effect.