本组８５例肾积水患者经过肾盂成形术治疗获得满意疗效，失败１例。首先检查清楚梗阻积水原因，明确梗阻的部位、程度、长度，手术必须切除梗阻狭窄部位，裁剪扩大肾盂，缩小积水腔。成形后肾盂有一定容量，外形呈漏斗状，输尿管不能扭曲、无张力，保持良好的血运是手术成功的关键。通过肾盂成形术可以保留积水肾，使积水肾的功能得到恢复，从而使患有肾积水的患者从根本上得到康复 The group of 85 patients with hydronephrosis after pyeloplasty received satisfactory results, failure in 1 case. First check the cause of obstruction clear water, clear obstruction of the site, extent, length, surgical resection of the obstruction must be narrow site, cut to expand the renal pelvis, reduce the water chamber. After forming a certain capacity of the pelvis, funnel-shaped appearance, ureter can not be distorted, no tension, to maintain good blood supply is the key to the success of the operation. Hydrops and nephrons can be retained by pyeloplasty, allowing the function of hydronephrosis to be restored so that patients with hydronephrosis can be fundamentally rehabilitated