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Intraarterial digital subtraction angiography in hypertensive azotemic patients.

Ten intraarterial digital subtraction angiography studies in nine azotemic patients were reviewed to assess the technical adequacy and the effect of contrast load on renal function. All studies were of diagnostic quality. In only two of 10 studies was there a mild transient deterioration in the degree of renal insufficiency. Intraarterial digital subtraction angiography is a reliable method that can be used to evaluate the renal arteries, even in the presence of azotemia.