ESPB Versus SPSIPB for Quality of Recovery After Video-Assisted Thoracoscopic Surgery

Overview

Video-assisted thoracoscopic surgery (VATS) is associated with moderate to severe postoperative pain despite its minimally invasive nature. Ultrasound-guided erector spinae plane block (ESPB) and serratus posterior superior intercostal plane block (SPSIPB) are promising regional analgesic techniques for thoracic surgery; however, evidence directly comparing their effects on postoperative quality of recovery remains limited. This prospective, randomized, double-blind controlled trial aims to compare the effects of ESPB and SPSIPB on postoperative quality of recovery, measured by the Quality of Recovery-15 (QoR-15) questionnaire at 24 hours after surgery. Secondary outcomes include postoperative pain scores, tramadol consumption, time to first rescue analgesia, rescue analgesic requirement, postoperative nausea and vomiting, patient satisfaction, length of hospital stay, block-related complications, and perioperative hemodynamic parameters.

Video-assisted thoracoscopic surgery (VATS) has become the preferred surgical approach for many thoracic procedures because of its minimally invasive nature. Nevertheless, patients frequently experience moderate to severe postoperative pain, which may impair respiratory function, delay mobilization, prolong hospitalization, and negatively affect overall recovery. Effective multimodal analgesia is therefore essential for optimizing postoperative outcomes. Ultrasound-guided erector spinae plane block (ESPB) and serratus posterior superior intercostal plane block (SPSIPB) are interfascial plane blocks that have demonstrated promising analgesic efficacy in thoracic surgery. Although both techniques are increasingly used in clinical practice, evidence directly comparing their effects on postoperative quality of recovery following VATS is limited. This prospective, randomized, double-blind, parallel-group clinical trial will enroll 128 adult patients (18-70 years, ASA physical status I-III) undergoing elective VATS. Participants will be randomly assigned in a 1:1 ratio to receive either ultrasound-guided ESPB or ultrasound-guided SPSIPB before surgery. The primary outcome is the Quality of Recovery-15 (QoR-15) score at 24 hours after surgery. Secondary outcomes include postoperative pain scores at rest and during coughing, cumulative 24-hour tramadol consumption, time to first rescue analgesia, rescue analgesic requirement, postoperative nausea and vomiting, sedation level, patient satisfaction, length of hospital stay, block-related complications, perioperative hemodynamic variables, and additional analgesic requirements. The results of this study are expected to provide high-quality evidence regarding the comparative effectiveness of ESPB and SPSIPB in improving postoperative recovery and analgesic outcomes after VATS and may contribute to optimizing regional analgesia strategies for thoracic surgery.