Rectus sheath block and emergency midline laparotomy at a hospital in Ethiopia: A prospective observational study.

Background: Midline laparotomy is associated with severe postoperative pain. Literature showed controversial results regarding the efficacy of the rectus sheath block.

Methods: This is a prospective cohort study that recruits 30 patients in the rectus sheath block (RSB) group and 30 patients in the multimodal analgesia (MMA) group who underwent emergency midline laparotomy.