[Key words] Transverses abdominis plane block Quadratus lumborum block Pediatric Testicular descending fixation First-author’s address： Women’s and Children’s Central Hospital， School of Medicine， University of Electronic Science and Technology of China， Chengdu 611731， China.

    睪丸固定术是儿科常见下腹部手术。临床观察及研究表明，睾丸固定术后疼痛较为明显，影响患儿自主活动及进食、睡眠等[1]。然而，曲马多或非甾体抗炎药镇痛效果欠佳或副作用耐受性差，多模式镇痛方式需进一步改善[1-2]。研究显示，局部神经阻滞可以改善下腹部手术后镇痛效果，已在小儿腹部手术后镇痛应用中取得一定进展[3]。腹横肌平面(transversus abdominis plane ......