A comparison between ultrasound guided ilioinguial/iliohyphogastic nerves block and infiltration of wound with ropivacaine on post-operative pain after open repair of unilateral inguinal hernia in adults: A randomized controlled trial

Document Type

Article

Department

Anaesthesia

Abstract

Introduction: Pain is a concerning problem in patients with open inguinal hernia repair. Hence, multi modal analgesia is recommended to overcome this issue. Therefore this randomized controlled trial was conducted to compare the analgesic efficacy of ultrasound guided Ilioinguinal/Iliohyphogastric nerve block vs. local anaesthetic infiltration of wound with Ropivacaine on postoperative pain after open repair of unilateral inguinal hernia in adults.
Objective: To compare the postoperative pain scores in patients undergoing open inguinal hernia repair between two groups receiving either Ilioinguial/Iliohyphogastic nerves block with Ropivacaine or wound infiltration with Ropivacaine.
Materials and Methods: 60 participants for elective unilateral open inguinal hernia repair were included. Patients were randomly allocated (30 each) to one of the two groups. Group I received ILI/IHG nerve block where 20mls 0.25% Ropivacaine was infiltrated around the nerves under U/S guidance, and group II received local anaesthetic infiltration (Ropivacaine 20mls 0.25%) at the end of surgery at the incision site to provide postoperative analgesia. Postoperative pain at rest (static) and on movement (dynamic) was assessed at 2hours, 4hours and 24 hours using VAS pain score. Results: The average age of the patients was 47.43±16.41 years and there were 57 (95%) males and 3 (5%) females. Mean pain score at rest was not statistically significant between groups over time while at movement mean pain score was statistically significant at 4 hours but it was not statistically significant between groups at 2hrs and 24 hours.¨
Conclusion: There was no significant difference in mean pain score between ilioinguinal/iliohypogastric nerves block with Ropivacaine or wound infiltration with Ropivacaine. Therefore both techniques can be used as effective modalities to control postoperative pain and early hospital discharge in patients undergoing inguinal hernia repair under general anesthesia.

Publication (Name of Journal)

Anesthesia & Analgesia

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