Efficacy of ultrasound-guided bilateral rectus sheath block vs. local anesthetic infiltration in gynecologic oncology patients undergoing midline laparotomy: a triple-blinded randomized controlled trial

Postoperative pain is a serious problem in gynecological oncology patients. Rectus sheath block (RSB) is increasingly utilized as a part of multimodal analgesia. The purpose of this three blinded, randomized-controlled trial is to compare the analgesic efficacy of ultrasound-guided (US-guided) bilateral rectus sheath block (BRSB) and local anesthetic wound infiltration (LAWI) application in patients undergoing midline laparotomy for gynecologic cancer.