Objective:To summy the experience of robot-assisted laparoscopic pyeloplasty (RALP)for treat-ment of ureteropelvic junction obstruction (UPJO)and to exert the advantage of robot-assisted laparoscopic tech-nology.Methods:We analyzed the clinical data and surgical methods of 21 cases of UPJO with RALP in our hospi-tal from Sep.2014 to Sep.2016 retrospectively.There were 12 males and 9 females with a mean age of 26 years old (range:17 to 37 years old).The lesions were located on the left side in 11 cases,on the right side in 9 cases and on the bilateral side in 1 case.Eighteen cases were diagnosed as UPJO on the one side,and 1 case on the bilat-eral side.There was 1 case of lower kidney UPJO with right renal duplication,and 1 case of left UPJO with renal calculus.All of cases underwent RALP.The surgical mothed of Anderson-Hynes was adopted.Results:Twenty-one RALP operations were finished succussfully and one of them underwent operation with bilateral sides.None was converted to open operation or traditional laparoscopy.The mean operative time of RALP was 85 min (from 65 to 110 min)and mean haemorrhage was 18 mL (from 10 to 30 mL).No leakage of urine after the operation oc-curred.The double J tubes were removed by cystoscope after 1 or 2 months.All the cases were followed up from 2 to 24 months.Hydronephrosis of 21 cases was mitigated.Conclusions:RALP could reduce difficulty and improve accuracy of laparoscopic pyeloplasty.The efficacy of surgery was satisfied.%目的：：总结机器人辅助腹腔镜肾盂输尿管离断成形术(RALP)的手术经验,发挥其手术优势.方法：回顾性分析2014年9月~2016年9月收治21例行 RALP 的肾盂输尿管连接部梗阻(UPJO)患者的临床资料.其中男12例,女性9例,年龄17~37岁,平均25岁,左侧11例,右侧9例,双侧1例.术前经影像学检查,18例诊断为一侧肾脏 UPJO,1例诊断为双侧肾脏 UPJO,1例为右侧重复肾合并下位肾 UPJO,1例为左UPJO 合并多发肾结石.21例患者均由机器人辅助腹腔镜完成 RALP,采用经典的切除梗阻段,裁剪肾盂,吻合肾盂输尿管的手术方法.结果：21例手术均顺利完成,其中1例Ⅰ期行双侧手术,无一例中转开放或普通腹腔镜手术.手术时间65~110 min,平均85 min,术中出血10~30 ml,平均18 ml.术后无一例发生尿漏,双J 管术后留置1~2个月后,予膀胱镜下拔除.所有患者术后随访2~24个月,复查 B 超或 IVU,患肾积水均明显减轻.结论：RALP大大降低了腹腔镜 UPJ 离断成形术的难度,提高了精细度,手术效果良好.
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