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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 .
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]
Renal artery stenosis, or narrowing of one or both renal arteries will lead to hypertension as the affected kidneys release renin to increase blood pressure to preserve perfusion to the kidneys. RAS is typically diagnosed with duplex ultrasonography of the renal arteries. It is treated with the use of balloon angioplasty and stents, if necessary.
Restenosis rates of drug-eluting stents appear to be significantly lower than bare-metal stents, and research is underway to determine if drug-coated balloons also improve restenosis outcomes. Restenosis is the recurrence of stenosis, a narrowing of a blood vessel, leading to restricted blood flow.
It is useful in the diagnosis and treatment of arterial and venous occlusions, including carotid artery stenosis, pulmonary embolisms, and acute limb ischaemia; arterial stenosis, which is particularly useful for potential kidney donors in detecting renal artery stenosis (DSA is the gold standard investigation for renal artery stenosis [10 ...
The captopril challenge test (CCT) is a non-invasive medical test that measures the change in renin plasma-levels in response to administration of captopril, an angiotensin converting enzyme inhibitor.
This means it speeds up the process of removing fluids through your renal system, which is why you usually need to pee more often when your alcohol intake is high. By causing you to urinate more ...
Radial access has also been used successfully to treat peripheral artery disease including bilateral iliac artery stenosis, renal artery stenosis and for carotid interventions. [ 10 ] [ 11 ] Due to rapid ambulation post procedure the radial interventions became particularly attractive for patients with back pain, chronic obstructive lung ...
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