Fig. 3From: Effect of dexmedetomidine on intraoperative Surgical Pleth Index in patients undergoing video-assisted thoracoscopic lung lobectomyComparison of postoperative NRS pain scores between the two groups from when they left the recovery room to 48 h after surgery. NRS: number rating scale, PACU: post anesthesia care unit, *P < 0.05Back to article page