Objective:To evaluate the effect and to improve the treatment level of transcatheter arterial embolization therapy in patients with urinary tumor.Methods:Catheters were transcutaneously inserted into femur artery by Seldinger’s method and intervene embolized selected arteries by gelatin-sponge or a mixture of anhydrous alcohol and iodised oil.37 cases of renal carcinoma

8 cases of renal angiomyolipomas

2 cases of advanced bladder tumor were embolized and treated selectively or superselectively by Seldinger’s catheteration.Among all patients

33 cases were treated before surgery

and 14 cases were therapeutic embolization.Results:The tumor size decreased

the perirenal edema area became clear and bleeding in operation reduced in 33 cases of renal carcinoma.The tumor size had no change and the patient had to undergo operation in 1 case.Therapeutic embolization was given to 2 cases with stage-IV renal carcinoma.The mean survival time was 12-17 months. And hematuria hasn’t occurred;1 case with tumor relapse after nephrectomy was complicated of paraplegia after embolization treapy.8 cases with renal angiomyolipoma were followed-up 8 months to more than 5 years.Tumor size decreased

no blood supply and no one relapse.2 cases with advanced bladder tumor bleeding stopped.Survival quality of life has been significantly improved after embolization.Conclusion:Intervene embolization is an effective method for urinary tumor.It can improve the success rate of operation

maximumly reserve normal renal tissue or significantly improve survival quality.The complication of embolization is rare

but if it occurs

it is serious.Much more attention must be paid to it.