Fig. 2From: Rhomboid intercostal block combined with sub-serratus plane block versus rhomboid intercostal block for postoperative analgesia after video-assisted thoracoscopic surgery: a prospective randomized-controlled triala Total opioid consumption (µg) in 24 h; b Time to first postoperative analgesic request; c Satisfaction score in the 3 groups 24 h after the surgery. *p < 0.05 compared with the control group, #p < 0.05 compared with the rhomboid intercostal block combined with sub-serratus plane (RISS) groupBack to article page