儿童上尿路急慢性梗阻有时须做暂时性或长期肾造瘘 ,目前经皮肾盂穿刺置放引流管已可代替开放手术的肾造瘘方法。本文介绍一种经改进的超声引导下经皮肾盂穿刺造瘘方法。一般资料 :自 2 0 0 1年 12月至 2 0 0 2年 6月 ,4例重度肾积水伴感染患儿 ,2例为双侧肾积水 ,均为男性 ,年 Children with acute or chronic obstruction of the upper urinary tract sometimes need to do temporary or long-term renal fistula, percutaneous drainage tube is now available to replace open renal nephrostomy method. This article describes an improved ultrasound-guided percutaneous nephrolithotomy method. General Information: From December 2001 to June 2002, 4 cases of severe hydronephrosis with infection and 2 cases of bilateral hydronephrosis, both men, year