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Overview



Renal artery stenosis (RAS) is the narrowing of the lining of the main artery that supplies the kidney. Depending on the degree of narrowing, patients can develop hypertension called renal vascular hypertension (RVH). This form of hypertension is the most common cause of secondary hypertension



RVH occurs when RAS produces a critical narrowing of the artery that supplies one of the kidneys. Critical RAS is defined as at least 70% narrowing of the renal artery, based on an...Read the full article