Summary

The renovascular hypertension is na acute or chronic elevation of systemic blood pressure caused by partial or complete oclusion of one or more renal arteries or their branches, often correctable by surgery or percutaneous transluminal angioplasty. In patients > 50 yr old, the most frequent cause of renal arterial stenosis is atherosclerosis; in younger patients, it is one of the fibrous dysplasias.