Opioid-free analgesia with esketamine-dexmedetomidine versus opioid-based analgesia after gynaecological laparoscopic surgery: a double-blind, randomized, controlled trial
Abstract Background Postoperative opioid-based analgesia after gynecological laparoscopic surgery often causes dizziness, nausea and vomiting, with limited benefit for mood and sleep. We tested whether opioid-free analgesia combining dexmedetomidine and esketamine was non-inferior to sufentanil-based opioid analgesia f...