The procedure was performed via retrograde transurethral access in 186 patients and via antegrade percutaneous nephrostomy tract in 60 patients.

• 方法采用输尿管镜术共治疗输尿管上段嵌顿性结石246例,其中逆行经尿道入路治疗186例,顺行经皮肾微造瘘入路60例。