对208例肾盂输尿管连接部梗阻的212次肾盂内切开术结果作了研究。男101例,女107例。年龄2岁9个月至84岁。原发性和继发性梗阻分别为110和102侧。右侧111,左侧99,双侧男女各1例,初次失败后又作二次内切开者男女各1例。对189例随访最少6个月并对所有失败者进行分析。成功的病人随访超过3年的102例(63％),多于2年的123例(76％),至少1年的150例(92％),随访最长的97个月(8年)。当病人完全无症状时为内切开成功、在IVP上必须有明显改善、与术前影象比较 208 cases of ureteropelvic junction obstruction of the 212 intra-renal pelvis incision results were studied. There were 101 males and 107 females. Age 2 years old 9 months to 84 years old. The primary and secondary obstructions were 110 and 102, respectively. Right 111, left 99, both sides of the male and female in 1 case, after the first failure but also for secondary cut open in 1 case of male and female. 189 patients were followed for at least 6 months and all losers were analyzed. Successful patients were followed up for 102 (63%) for more than 3 years, 123 (76%) for more than 2 years, 150 (92%) for at least 1 year and a maximum of 97 months (8 years) for follow-up. When the patient is completely asymptomatic when the internal incision is successful, there must be a significant improvement in the IVP compared with the preoperative image