HYPERTENSION is a well-known risk factor for the progression of chronic renal failure. After successful renal transplantation hypertension is a frequent complica- tion and may assist in the progression of chronic graft failure. It is likely, although to date it has not been formally proven by prospective study, that effective blood pressure control has a beneficial effect on long-term renal allograft survival. The aim of this study was to examine the effect of hypertension on long-term renal allograft survival.