• Wei Chen, Xiaofeng Zhou, Hongmei Li, Boyi Liu, Ling Wang, Tan Liu, Jun Xia, Juying Liu, and Xiaofei Zhang.
• Department of Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, China.
• Pain Pract. 2023 Jun 1; 23 (5): 511522511-522.

ObjectiveOur meta-analysis aimed to compare the analgesic effectiveness of ultrasound-guided preoperative erector spinae plane block (ESPB) versus paravertebral nerve block (PVB) in breast surgery.MethodsPubMed, EMBASE, and the Cochrane Library were searched for randomized controlled trials (RCTs) between January 1, 1980 and April 31, 2021. The primary endpoints were perioperative pain score, analgesic consumption, and assessment of the block procedure. The secondary endpoints were intraoperative hemodynamic response, duration of surgery, postoperative antiemetic consumption, and adverse effects.ResultsFour RCTs comprised a total of 310 patients were included in our meta-analysis. No significant differences in the perioperative pain score and analgesic consumption were observed between ESPB and PVB in the operating room, post-anesthesia care unit (PACU), and ward (at 1, 16, 12, and 24 h), and the morning of postoperative day 1 (POD1) (all p > 0.05). Similarly, no significant differences in the duration of block, time to first analgesic, hemodynamic response, duration of surgery, postoperative antiemetic consumption, and adverse effects were observed (all p > 0.05). However, our meta-analysis revealed that ultrasound-guided preoperative ESPB significantly reduced the duration of procedure time and frequency of guidance interventions, as well as increased the block success rate among residents (all p < 0.05).ConclusionsBoth ultrasound-guided preoperative ESPB and PVB showed comparable analgesic effects in patients undergoing breast surgery. However, with a significantly shorter procedure time and higher block success rate, our findings suggest that ESPB may be a simple alternative to PVB in breast surgery.© 2023 World Institute of Pain.

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