Superior Hypogastric Plexus Block for Early Recovery After Laparoscopic Colorectal Cancer Surgery: A Randomized Controlled Trial

This study is a single-center, randomized, double-blind, placebo-controlled trial designed to evaluate the efficacy of superior hypogastric plexus block (SHPB) in improving the quality of postoperative recovery in patients undergoing laparoscopic colorectal cancer surgery. A total of 170 eligible patients will be enrolled and randomly assigned in a 1:1 ratio to receive either SHPB or placebo block. The primary outcome is the 15-item Quality of Recovery (QoR-15) score at 24 hours postoperatively. Secondary outcomes include visceral pain numerical rating scale (NRS) scores at rest and during movement within 48 hours postoperatively, morphine consumption, time to first flatus, incidence of postoperative ileus, length of hospital stay, and inflammatory cytokine levels (such as interleukin-6 and C-reactive protein). This study aims to elucidate the evidence-based medical position of SHP block within the Enhanced Recovery After Surgery (ERAS) strategy for laparoscopic colorectal cancer surgery.