• Kirti Kamal, Parul Jain, Teena Bansal, and Geeta Ahlawat.
• Department of Anaesthesiology and Critical Care, University of Health Sciences, Rohtak, Haryana, India.
• Indian J Anaesth. 2018 Apr 1; 62 (4): 292-297.

Background And AimsBoth transversus abdominis plane (TAP) block and combined ilioinguinal-iliohypogastric (IIN/IHN) blocks are used routinely under ultrasound (USG) guidance for postoperative pain relief in patients undergoing inguinal hernia surgery. This study compares USG guided TAP Vs IIN/IHN block for post-operative analgesic efficacy in adults undergoing inguinal hernia surgery.MethodsSixty adults aged 18 to 60 with American Society of Anesthesiologsts' grade I or II were included. After general anaesthesia, patients in Group I received USG guided unilateral TAP block using 0.75% ropivacaine 3 mg/kg (maximum 25 mL) and those in Group II received IIN/IHN block using 10 mL 0.75% ropivacaine. Postoperative rescue analgesia was with tramadol (intravenous) IV ± diclofenac IV in the first 4 h followed by oral diclofenac subsequently. Total analgesic consumption in the first 24 h was the primary objective, intraoperative haemodynamics, number of attempts and time required for performing the block as well as the postoperative pain scores were also evaluated.ResultsTime to first analgesic request was 319.8 ± 115.2 min in Group I and 408 ± 116.4 min in Group II (P = 0.005). Seven patients (23.33%) in Group I and two (6.67%) in Group II required tramadol in first four hours. No patient in either groups received diclofenac IV. The average dose of tablet diclofenac was 200 ± 35.96 mg in Group I and 172.5 ± 34.96 mg in Group II (P = 0. 004).ConclusionUSG guided IIN/IHN block reduces the postoperative analgesic requirement compared to USG guided TAP block.

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