Effect of opioid-free anesthesia on postoperative recovery in elderly patients undergoing laparoscopic abdominal surgery: a randomized controlled trial
Background Opioid-free anesthesia (OFA) has been proposed to reduce opioid-related adverse effects, although its impact on overall postoperative recovery remains uncertain. We evaluated whether OFA improves postoperative quality of recovery compared with opioid-based anesthesia (OA) in elderly patients undergoing lapar...