The Analgesic Efficacy of Two Bupivacaine Concentrations for Combined Ilioinguinal and Iliohypogastric Nerve Block in Postherniorrhaphy Pain

The present study will be undertaken to compare the postoperative analgesic effect of 0.25% bupivacaine and 0.5% bupivacaine for unilateral ilioinguinal and Iliohypogastric nerve block after open inguinal hernia repair. Primary outcome: The time to first request for rescue analgesia. Secondary outcome: 1. The post-operative pain in the form of NRS scores at rest \& during movement at 0, 2, 4, 8, 12, 18 and 24 hours post-procedure. 2. The total 24 hour opioid consumption. 3. The incidence of complication related to nerve block (urinary retention, hematoma, hypotension and arrhythmia). 4. Patient satisfaction