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Renal artery stenosis (RAS) is the narrowing of one or both 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 renovascular hypertension – a secondary type of high blood pressure .
This leads to a build-up of plaques and they can be deposited in the renal arteries causing stenosis and ischemic kidney disease. [citation needed] In this situation, the kidney supplied blood by the narrowed renal artery suffers from inadequate blood flow, which in turn causes the size of the kidneys to decrease. Other consequences include ...
Percutaneous transluminal renal angioplasty (PTRA) is considered the best treatment for renal-artery FMD. It is useful when hypertension is difficult to control, such as when the patient is intolerant to the anti-hypertensive medications, non-compliant to medication regime, or experiencing loss of renal volume due to ischemia.
Without proper treatment, hypertension can lead to: Atherosclerosis (a buildup of plaque in your arteries) ... Renal artery stenosis (when the artery leading to your kidney is narrowed)
It can lead to stenosis, which is a narrowing of your artery walls. Plaque is a fatty substance made up of: Fats. Cholesterol. Fibery Proteins. Calcium. ... Treatment. The primary treatment for ...
Atherosclerotic obstruction of the renal artery can be treated with angioplasty with or without stenting of the renal artery. [10] There is a weak recommendation for renal artery angioplasty in patients with renal artery stenosis and flash edema or congestive heart failure. [10]
The prognosis of individuals with renovascular hypertension is not easy to determine. Those with atherosclerotic renal artery disease have a high risk of mortality, furthermore, those who also have renal dysfunction have a higher mortality risk. However, the majority of renovascular diseases can be improved with surgery. [4]
Renal infarction is a medical condition caused by an abrupt disruption of the renal blood flow in either one of the segmental branches or the major ipsilateral renal artery. [3] Patients who have experienced an acute renal infarction usually report sudden onset flank pain , which is often accompanied by fever , nausea , and vomiting .