To explore the difference in the effect of local anesthesia between ropivacaine and lidocaine in inguinal hernia surgery.

From January 2018 to November 2019, 90 patients who underwent tension-free inguinal hernia repair at Ma'anshan Central Hospital were selected. Thirty patients underwent local anesthesia with lidocaine served as group A, 30 patients underwent local anesthesia with lidocaine combined with 0.375% ropivacaine as group B, and 30 patients underwent local anesthesia with lidocaine combined with 0.75% ropivacaine as group C. The hemodynamic indexes of the 3 groups [mean arterial pressure (MAP), heart rate (HR), blood oxygen saturation (SpO₂) before anesthesia, 1 min after anesthesia, 5 min after anesthesia, 10 min after anesthesia], related indexes of the operation condition (operating time, blood loss, length of hospital stay), anesthesia effect related indicators [anesthesia onset time, anesthesia duration, postoperative visual analogue scale (VAS) at 1, 3, 6, 9, 12, and 24 hours], postoperative adverse reactions were compared among the three groups.

The differences in MAP, HR and SpO₂ data of the three groups of patients before anesthesia, 1 minute after anesthesia, 5 minutes after anesthesia, and 10 minutes after anesthesia were not statistically significant (P>0.05). There were no statistically significant differences in operating time and blood loss among the three groups of patients (P>0.05). The hospital stay of group B and group C was shorter than that of group A (P<0.05). The onset time of anesthesia in group B and group C was longer than that in group A (P<0.05). The duration of anesthesia in group C was longer than that in group B, and the duration of anesthesia in group B was longer than that in group A (P<0.05). The VAS score of group C at 1, 3, 6 and 9 hours after operation was lower than that of group B, and the VAS score of group B at 1, 3, 6, and 9 hours after operation was lower than that of group A (P<0.05). There was no significant difference in the VAS score data among the 3 groups at 12 and 24 hours after operation (P>0.05). The difference in postoperative adverse reaction data among the 3 groups was not statistically significant (P>0.05).

For patients undergoing tension-free inguinal hernia repair, the use of local anesthesia containing lidocaine or ropivacaine can ensure hemodynamic stability and anesthesia during the operation. Lidocaine has a faster onset time, while the analgesic effect of ropivacaine lasts longer. The combined use of ropivacaine and lidocaine at a concentration of 0.75% can provide patients with better postoperative analgesia, and the medication safety is good.