Abstract
The importance of main renal artery stenosis as a cause of human hypertension is well recognized. Stenoses of renal artery branches may also cause hypertension, but the incidence of such stenoses and the frequency with which they are etiologically related to hypertension receive little comment in the literature. Involvement of segmental renal arteries was reported by Harrison et al. (11, 12) in 56 per cent of patients with fibromuscular disease, and by Meaney and Dustan (14) in 58 per cent of patients with atherosclerotic renovascular disease. These authors did not attempt to assess the severity or hemodynamic significance of the stenoses. The present paper reports the author's experience with segmental renal artery stenoses in renovascular hypertension. Objective morphologic observations will be presented initially. In the discussion that follows, several hypotheses regarding the hemodynamic significance of these lesions will be proposed. Certain definitions must be clarified at the outset: A. Segmental ...

This publication has 0 references indexed in Scilit: