Last update 08 May 2025

Renovascular disorders (SMQ)

Basic Info

Synonyms
Renovascular disorders (SMQ), 腎血管障害(SMQ)
Introduction
Renovascular disorders include: atherosclerotic renal artery stenosis (most common primary disease of the renal arteries); fibromuscular dysplasia of the renal arteries; embolic renal artery occlusion; and renovascular microvascular disorders. All can result in renal dysfunction, usually evidenced by high plasma renin levels. Usually present in one of three forms: asymptomatic renal artery stenosis; renovascular hypertension; ischemic nephropathy. Primarily due to constriction of afferent renal artery resulting in decreased perfusion pressure of larger circulation and/or microcirculation. Disorder of larger circulation is commonly due to unilateral or bilateral renal artery stenosis. Microcirculation disorders are commonly due to small vessel thrombosis from proximal upstream thrombi (e.g., in the stenosed renal artery) or from distal sites (e.g., intracardiac thrombi). Mechanisms of chemotherapy-induced renal dysfunction include: damage to kidney vasculature or structures; hemolytic uremic syndrome; prerenal perfusion deficits. Renovascular disorders may result in progressive severe hypertension with the usual sequelae of this condition.

Analysis

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