目的　研究肾动脉栓塞术在肾损伤出血及肾肿瘤术前的临床应用。方法　对 83例进行超选择性肾动脉栓塞 ,其中 5 7例为肾肿瘤 ,2 6例为肾出血 ,应用明胶海绵碎屑及金属圈 ,栓塞肿瘤血管及出血动脉。结果　肾肿瘤术中易剥离 ,出血少 ,术野清晰、术时缩短 ;肾出血 2 6例 ,除 1例肾切除外 ,其余的出血均停止。结论　肾动脉栓塞有助于肾肿瘤的手术切除。对肾损伤出血者 ,可降低手术率 ,最大限度保存肾脏 Objective To study the clinical application of renal artery embolization in preoperative renal injury and renal tumor. Methods Totally 83 patients with renal artery thrombosis were enrolled. Among them, 57 were renal tumors and 26 were renal hemorrhage. Gelatin sponge scraps and metal rings were used to embolize the tumor vessels and the bleeding arteries. Results Renal tumor was easy to peel off during operation, with less bleeding, clear operative field and shorter operative time. Twenty-six patients with renal hemorrhage, except for 1 case of nephrectomy, stopped the bleeding. Conclusion Renal artery embolization is helpful for the surgical resection of renal tumors. Hemorrhagic renal injury who can reduce the surgical rate, maximize the preservation of the kidneys