Application of incision-based precision multipoint rectus sheath block and bilateral rectus sheath block in laparoscopic-assisted colorectal surgery: a randomized, controlled trial

Compared to bilateral RSB, IBRSB based on incision location and trauma severity significantly reduced intraoperative and postoperative opioid requirements, improved hemodynamic stability, and showed no increase in complications in patients undergoing LACS. Key messages What is already known on this topic: Laparoscopic surgery requires small midline incisions and multiple trocars, resulting in scattered wounds. An incision-based precision multipoint rectus sheath block (RSB), tailored to the surgical site and providing dual analgesia through local infiltration and nerve blockade, may be more suitable for laparoscopic-assisted colorectal surgery than bilateral RSB. What this study adds: The main finding was that ultrasound-guided incision-based precision multipoint RSB, compared to bilateral RSB, significantly reduced intraoperative and postoperative morphine equivalents in patients undergoing laparoscopic-assisted colorectal surgery. How this study might affect research, practice, or policy: The incision-based precision multipoint represents a safe and efficacious technique, which is recommended for routine implementation in patients subjected to laparoscopic-assisted colorectal surgery.