• Nidhi Bhatia, Indu Mohini Sen, Banashree Mandal, and Ankita Batra.
• Department of Anaesthesia & Intensive Care, Postgraduate Institute of Medical Education and Research (PGIMER), 160012 Chandigarh, India. Electronic address: nidhi.bhatia75@gmail.com.
• Anaesth Crit Care Pain Med. 2019 Feb 1; 38 (1): 41-45.

PurposeAnalgesic efficacy of ultrasound-guided transverse abdominis plane block, administered a little more medially, just close to the origin of the transverse abdominis muscle has not yet been investigated in patients undergoing unilateral inguinal hernia repair. We hypothesised that medial transverse abdominis plane block would provide comparable postoperative analgesia to ilioinguinal-iliohypogastric nerve block in inguinal hernia repair patients.MethodsThis prospective, randomised trial was conducted in 50 ASA I and II male patients≥18 years of age. Patients were randomised into two groups to receive either pre-incisional ipsilateral ultrasound-guided ilioinguinal-iliohypogastric nerve block or medial transverse abdominis plane block, with 0.3ml/kg of 0.25% bupivacaine. Our primary objective was postoperative 24-hour analgesic consumption and secondary outcomes included pain scores, time to first request for rescue analgesic and side effects, if any, in the postoperative period.ResultsThere was no significant difference in the total postoperative analgesic consumption [group I: 66.04mg; group II: 68.33mg (P value 0.908)]. Time to first request for rescue analgesic was delayed, though statistically non-significant (P value 0.326), following medial transverse abdominis plane block, with excellent pain relief seen in 58.3% patients as opposed to 45.8% patients in ilioinguinal-iliohypogastric nerve block group.ConclusionMedial transverse abdominis plane block being a novel, simple and easily performed procedure can serve as an useful alternative to ilioinguinal-iliohypogastric nerve block for providing postoperative pain relief in inguinal hernia repair patients.Copyright © 2018 Société française d'anesthésie et de réanimation (Sfar). Published by Elsevier Masson SAS. All rights reserved.

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