The effect of ultrasound-guided erector spinae plane block in postoperative analgesia of patients undergoing abdominal surgery
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Interventions: control group:None;experimental group:In patients with liver cancer, 0.5% ropivacaine T8 ESPB was 15ml on each side (25 cases).Colorectal cancer patients 0.5% ropivacaine T12 ESPB 15ml on each side (25 cases) Primary outcome(s): Pain score Study Design: Parallel
创建时间：
2019-02-15
