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  • Title: Comparison of pericapsular nerve group (PENG) block and epidural analgesia following total hip arthroplasty: A retrospective analysis.
    Author: Pires Sousa I, Leite da Silva Peixoto CI, Fernandes Coimbra LA, da Costa Rodrigues FM.
    Journal: Rev Esp Anestesiol Reanim (Engl Ed); 2022 Dec; 69(10):632-639. PubMed ID: 36376187.
    Abstract:
    INTRODUCTION AND OBJECTIVES: Total hip arthroplasty (THA) is an increasingly common orthopaedic procedure, with moderate to severe postoperative pain. Pericapsular nerve group (PENG) block is a recent block that seems to provide adequate analgesia without significant motor blockade. The aim of this study is to retrospectively compare the analgesic efficacy and safety of PENG block with those of epidural analgesia, in patients undergoing THA. MATERIAL AND METHODS: This is a retrospective observational study of patients who underwent primary THA, submitted to epidural analgesia or single-shot ultrasound-guided PENG block, during a one-year period. Data regarding demographic characteristics, surgery and anaesthesia techniques, pain scores, opioid consumption, complications and time to hospital discharge were retrieved from institutional records and compared between the 2 groups (epidural analgesia vs PENG block). RESULTS: No significant difference was found regarding pain scores, opioid consumption, and mean time to hospital discharge between the 2 groups. Pain scores at rest (1.20 epidural vs 1.67 PENG) or with movement (3.95 epidural vs 3.72 PENG) were similar between groups. Total number of complications was higher in the epidural analgesia group (50 % epidural vs 5% PENG). Paresthesia was reported in both groups. Motor block, sedation, nausea and catheter-related complications were only found in the epidural analgesia group. CONCLUSIONS: PENG block seems to be equivalent to epidural analgesia regarding quality of postoperative analgesia for patients subject to primary THA, supporting routine use of this block in these patients. The low rate of reported complications limits conclusions on this topic.
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