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先天性梗阻性肾病是引起婴幼儿及儿童肾功能不全的首要原因之一［１］。肾盂输尿管连接处为先天性尿道梗阻的好发部位，尿道后梗阻则最多位于膀胱出口处。目前，在胚胎发育过程中梗阻形成的机制尚未完全明确，引起肾脏发育不良的原因可能除尿流受阻这一原发病因外，还受多种病
Congenital obstructive nephropathy is one of the leading causes of renal insufficiency in infants and children [1]. The junction of the ureteropelvic urethra is the predilection site of congenital urethral obstruction, and the posterior urethral obstruction is located at the outlet of the bladder at the most. At present, the mechanism of obstruction formation during embryonic development is not yet completely understood. The cause of dysplasia of the kidney may be caused by a variety of diseases