Post-operative analgesic efficacy of usg guided ilioinguinal-iliohypogastric nerve block v/s transversus abdominis plane block following caesarean section under subarachnoid block:A Randomised Clinical Trial.

Effective postoperative analgesia after caesarean section is essential for early recovery, maternal comfort, and newborn care. While spinal (subarachnoid) block is widely used for caesarean delivery, its analgesic effect diminishes over time, often necessitating additional pain control methods.

Ultrasound-guided regional nerve blocks have become valuable tools in multimodal analgesia. Two such techniques—the Transversus Abdominis Plane (TAP) block and the Ilioinguinal-Iliohypogastric (II-IH) nerve block are commonly used to manage somatic pain after lower abdominal surgeries.

The TAP block provides analgesia by anesthetizing the nerves (T6–L1) in the fascial plane between the internal oblique and transversus abdominis muscles, while the II-IH block targets the terminal branches of T12 and L1, supplying the lower abdominal wall. Both blocks have shown effectiveness in reducing postoperative opioid requirements, but their comparative efficacy in caesarean section patients remains uncertain.

This randomized clinical trial aims to compare the postoperative analgesic efficacy of ultrasound-guided II-IH nerve block versus TAP block in women undergoing caesarean section under spinal anesthesia.