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Hypertension persists frequently among recipients of renal allografts with a reported incidence as high as 50-60%. Several etiologic factors have been clearly demonstrated, including retention of native kidney, acute and chronic glomerulonephritis, and transplant renal artery stenosis(TRAS). TRAS is suspected when refractory diastolic hypertension can not be controlled by antihypertensive medications and also impairing renal function is combined in cases of post renal transplantations. The incidence of transplant renal artery stenosis sufficient enough to yield hypertension was reported 3-12% of all renal transplants. Preoperative renal biopsy is considered mandatory to rule out possible chronic rejection before surgery. From March 1969 to December 1991, 710 renal transplants were performed at Dept, of Surgery, Catholic University medical College. Of 710 patients, we experienced 5 cases of transplnt renal artery stenosis. The diagnosis was confirmed by angiography and they received surgical repair. In our review, 1) 4 patients were male and 1 was female. 2) The incidence was 0.7%(5/710). 3) The cause of renal failure before kidney transplantation was chronic glomerulonephritis in all patients. 4) The patients presented refractory hypertension and their pretsplant serum Cr. Were more than 2.0 mg%. 5) The mean pr eod for development of the condition was 6-13 month from date of kidney transplantation ari one case was identified in postop. 46 months. 6) Autogenous vien roof patch angioplasties were performed in all patients, successful results in 4, failed in the other case due to chronic rejection.