Objective; To evaluate the effect and techniques of superselective renal artery embolization with microcoils in the treatment of severe renal hemorrhage after percutaneous nephrolithotomy ( PCNL). Methods: Thirteen patients with severe renal hemorrhage after percutaneus nephrolithotomy from 2006 to 2011 were analyzed retrospectively. Superselective angiography and renal artery embolization with microcoils were performed in all patients. Results: Gross hematuria ceased in all patients in 48 hours after interventional embolic therapy. No recurrent hemorrhage occurred during 1-12 months follow — up. The serum urea and creatinine levels were normal in 13 patients. Conclusion; Superselective renal artery emblization with microcoils is reliable and effective in the treatment of severe hemorrhage followed by PCNL and for the protection of the function of kidney.%目的:探讨经微导管置放微钢圈栓塞治疗经皮肾镜取石术(PCNL)后难止性肾出血的方法和效果.方法:回顾性分析2006～2011年接受PCNL治疗后难止性肾出血13例,采用股动脉插管,行肾动脉造影明确出血动脉后,以微导管行超选择性出血动脉内释放微钢圈栓塞治疗.结果:13例患者栓塞后48 h内肉眼血尿消失,所有病例随访6～12个月肾出血无复发,尿素氮、血肌酐正常,无治疗并发症.结论:肾动脉造影和经微导管超选择性出血动脉内释放微钢圈栓塞治疗PCNL术后难止性出血,创伤小、见效快,可最大限度保护肾功能,应作为首选治疗方法.
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