利尿B超诊断小儿肾盂输尿管连接部梗阻

为了解利尿Ｂ超诊断小儿肾盂输尿管连接部梗阻（ＰＵＪＯ）的意义，对２５例（３４侧）小儿肾积水进行利尿Ｂ超检查，将检查结果与ＩＶＵ、肾盂测压、手术中所见病理改变及正常肾脏检查结果进行比较。结果显示利尿后ＰＵＪＯ患儿肾脏集合系统明显扩大，平均较利尿前扩大１０５％，利尿后９０ｍｉｎ仍不能恢复。同返流、输尿管远端或下尿路梗阻引起的肾积水及正常肾脏检查结果比较有显著性差异（Ｐ＜０．０５）。利尿Ｂ超可作为判断ＰＵＪＯ的方法之一。

Assessment of Pelvo- ureteric Junction Obstruction in Children with Diuretic Ultrasound

In order to evaluate the reliabrility of the diuretic ultrasound diagnosis of the pelvi- ureteric junction obstruction (PUJO), 25 patients (34 kidneys) with hydronephrosis (Hn) were examined with diuretic ultrasound. Being compared with those of IVU, the Whitaker test, the operative findings, and the diuretic ultrasound examination in healthy children, the results in children with PUJO showed significantly increasing of pyelotasis (average increased by 105%) as the failure of returning to the original condition within 90 minutes after diuresis.The results of PUJO were significantly different from those of hydronephrosis due to reflux, lower ureteric or lower urinary obstruction, or The normal kidneys (P<0. 05). Diuretic ultrasound will play a useful role in the investigation of PUJO.