Arterial stenosis in renal transplantation.

Stenosis of the renal artery of the transplant (RAT), is reported with a frequency of 5-10% (Nerstrøm, Ladefoged & Lund 1972, Nilsson, Henriksson & Thoren 1976, Beachley, Pierce, Boykin & Lee 1976). The stenosis is significant if it deteriorates the renal function or elevates the arterial blood pressure. The angiographic impression of a stenosis depends on the projection and it is difficult to correlate the radiological findings with the blood flow. Moreover both renal failure and hypertension might depend on other factors than stenosis of the RAT. The aim of this study was to establish how often a reconstruction of a RAT suspected of being stenotic would benefit the patient.