Materials and Methods:Thirty-two patients with ureteric obstruction of various causes were treated with percutaneous nephrostomy, ureteric calculus removal, stricture dilatation and stent placement.

• 材料与方法：32例输尿管梗阻患者，分别采用肾盂造口内外引流，经皮取石及球囊扩张等方法进行治疗。