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  • Title: Erector spinae plane block versus quadratus lumborum block for postoperative analgesia after laparoscopic nephrectomy: A randomized controlled trial.
    Author: Zhang Z, Kong H, Li Y, Xu ZZ, Li X, Ma JH, Wang DX.
    Journal: J Clin Anesth; 2024 Sep; 96():111466. PubMed ID: 38677191.
    Abstract:
    STUDY OBJECTIVE: We compared the analgesic effects of erector spinae plane block versus quadratus lumborum block following laparoscopic nephrectomy. DESIGN: A randomized controlled trial. SETTING: A tertiary hospital in Beijing, China. PATIENTS: Patients scheduled for elective laparoscopic nephrectomy. INTERVENTIONS: A total of 110 patients were enrolled and randomized to receive either erector spinae plane block (n = 55) or quadratus lumborum block (n = 55) under ultrasound guidance. Patient-controlled sufentanil analgesia was provided after surgery. MEASUREMENTS: Our primary outcome was cumulative opioid consumption within 24 h after surgery. Secondary outcomes included postoperative pain intensity, subjective sleep quality, and quality of recovery. MAIN RESULTS: All 110 patients (mean 53 years, 57.3% female) were included in the intention-to-treat analysis. Cumulative sufentanil equivalent within 24 h was lower in patients given erector spinae plane block (median 13 μg, interquartile range 4 to 33) than in those given quadratus lumborum block (median 25 μg, interquartile range 13 to 39; median difference - 8 μg, 95% CI -15 to 0, P = 0.041). Pain intensity (0-10 range where 0 = no pain and 10 = the worst pain) at 2, 6, 12, and 24 h after surgery was lower with erector spinae plane block (at rest: median differences -1 point, all P ≤ 0.009; with movement: median differences -2 to -1 points, all P < 0.001). Subjective sleep quality on the night of surgery (the Richards-Campbell Sleep Questionnaire: 0-100 range, higher score better; median difference 12, 95% CI 2 to 23, P = 0.018) and quality of recovery at 24 h (the Quality of Recovery-15: 0-150 range, higher score better; median difference 8, 95% CI 2 to 15, P = 0.012) were better with erector spinae plane block. No procedure-related adverse events occurred. CONCLUSIONS: Compared with quadratus lumborum block, erector spinae plane block provided better analgesia as manifested by lower opioid consumption and pain intensity for up to 24 h after laparoscopic nephrectomy.
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