• Gokhan Sertcakacilar and Selcuk Kose.
• Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA; Department of Anesthesiology and Reanimation, University of Health Science, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, Istanbul, TURKEY. Electronic address: drgokhansertcakacilar@gmail.com.
• J. Cardiothorac. Vasc. Anesth. 2022 Oct 1; 36 (10): 3833-3840.

Objective(S)Compared to the open surgical technique, the minimally invasive repair of pectus excavatum (MIRPE; Nuss procedure) is a thoracoscopic technique designed to minimize intraoperative tissue damage. It still causes severe postoperative pain due to the insertion and pressure of the retrosternal bar used to raise the sternum and stabilize the chest. This study aimed to identify associations between ultrasound-guided PECS-II block and postoperative analgesia after the Nuss procedure.DesignA retrospective cohort study SETTING: Single-center, training and research hospital affiliated with a university PARTICIPANTS: From Jan 1, 2018 to Nov 15, 2021, 171 consecutive patients were identified who underwent MIRPE surgery under general anesthesia. All patients received intravenous (I) patient-controlled analgesia (PCA) with or without PECS-II blocks for postoperative analgesia. One hundred twenty-five patients who met the inclusion criteria were evaluated.InterventionsDemand-only morphine intravenous PCA was used for postoperative pain management in the PECS and control groups. Bilateral PECS-II block with 0.25% bupivacaine was performed in to the PECS group.Measurements And Main ResultsThe primary outcome was postoperative opioid consumption, calculated as mg/kg of IV morphine. Secondary outcomes included Numeric Rating Scale (NRS) pain scores at rest (static) and with movement (dynamic) recorded 1, 4, 8, 12, 24 h after surgery. Postoperative morphine consumption was significantly lower in the PECS group than in the control group over the first 24 hours postoperatively: 0.325 mg/kg vs. 0.425 mg/kg (p<0.001). Static and dynamic NRS values were significantly lower in the PECS group for the first 12 postoperative hours (p <0.05).ConclusionsBilateral PECS-II block is associated with decreased pain scores for up to 12 hours, and with decreased opioid consumption for up to 24 hours, following minimally invasive repair of pectus excavatum (Nuss procedure) in adolescents. PECS-II block in this context has not been previously described.Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved.

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