Renal Artery Stenosis
It is the narrowing of one of the renal arteries most often caused by atherosclerosis or fibromuscular dysplasia. This narrowing of the renal artery can impede blood flow to the target kidney, resulting in Reno vascular hypertension – a secondary type of high blood pressure. Possible complications of renal artery stenosis are chronic kidney disease and coronary artery disease. The pathophysiology of renal artery stenosis leads to changes in the structure of the kidney that are most noticeable in the tubular tissue. If the stenosis is longstanding and severe, the glomerular, filtration rate in the affected kidneys never recovers and (prerenal) kidney failure is the result.