To explore the related risk factors for pain in patients under open inguinal hernia repair.

A total of 188 patients with inguinal hernia from March 2016 to February 2018 were prospectively collected, who underwent surgical treatment in the general surgery department of China-Japan Friendship Hospital. All operations were performed by the same chief surgeon. The basic clinical information of patients was collected, and the numerical rating scale (NRS) was used to evaluate the pain of infusion puncture before the operation and the degree of wound pain at 6 h and 24 h after the operation. Pearson correlation analysis and Spearman rank correlation analysis were used for correlation analysis. Logistic regression analysis was used in multivariate analysis.

There was a negative correlation between pain scores at 6 h after surgery and age (R=-0.152, P<0.05). It was significantly correlated with the mode of anesthesia (R=0.164, P<0.05). There was no significant correlation with gender, body mass index (BMI), operation site, inguinal hernia classification, operation method and operation time. There was a negative correlation between pain scores at 24 hours after the operation and age (R=-0.18, P<0.05). It was significantly correlated with the surgical site, anesthesia methods, and operation time (P<0.05). There was no significant correlation with gender, BMI, inguinal hernia classification and operation mode. Multivariate analysis showed that anesthesia mode was an independent related factor of postoperative wound pain, after adjusted for gender, age, and BMI.

The combination of local and enhanced anesthesia for small incision tension-free hernia repair can effectively meliorate the early postoperative pain, which is conducive to the early discharge of patients, and has a certain reference significance for clinical practice.