If I wait too long to get a stent for my renal artery stenosis, what will happen to my kidneys?

Depends. Stenting of the renal arteries has been controversial. Definitely, no intervention needs to be considered if the narrowing is less than 60%. The setting where stenting has definitely been shown to be beneficial is when the kidney function is deteriorating and/or the kidney size is shrinking. Stenting doesn't always improve the blood pressure or kidney function- hence the controversy.
Renal artery stenosi. Depends on what is causing the RAS. I specialize in this so can do 2nd opinion. Most probably nothing as long as BP is controlled.
? Stenosis. Dont need stent unless significant stenosis and difficult to control hypertension. If you wait too long the kidney may not respond. Have your doctor do a renal artery doppler. If the resistive index too high stent may not help.

Related Questions

Should renal artery stenosis be treated using stenting or bypass?

Depends. If the artery is suitable for stenting, that is much simpler and less invasive, done through a 2mm hole in your groin under local anesthesia. Surgery requires an extensive abdominal surgery, clamping the aorta, tying off the renal artery, cutting it off and re-implanting it on the aorta. Renal artery stenosis can lead to difficult to control bp, decreased kidney function and flash pulmonary edema. Read more...
Neither, sometimes. The value of revascularizing renal artery stenosis remains quite uncertain. In patients requiring multiple drugs for blood pressure control, after stenting there may be a small decrease in the number of pills needed. Clinical trials to address these questions have not given a clear answer yet. Read more...
Rx of renal art sten. 33 asks Should renal artery stenosis (RAS) be treated by stenosis or bypass. RAS should only be treated if it is cause of high blood pressure, Only reliable way to tell is to collect blood from veins draining each kidney and measure hormone renin. If stenotic side side has high renin & meds fail to control BP then repair depends on what is causing blockage and how bad it is. I specialize in this. Read more...

Bilateral renal artery stenosis. My left kidney getting smaller day by day. What should I do?

Interventional XR Dr. At your age more likely due to fibromuscular dysplasia than arterio or athero-sclerosis. An experience interventional radiologist might be successfully able to dilate and stent stenotic arteries. Worth researching the best local facilities +/or consider second opinion at a major medical center such as mayo or cleveland clinics or in a major city. Good luck. Read more...

How long is the recovery after angioplasty for renal artery stenosis?

Renal artery stenose. If the stenosis was causing the HTN the BP will fall immediately. And stay down. I specialize in this for 50 years. Happy to do 2nd opinion here to answer more questions. Read more...

Why exactly are ACE inhibitors contraindicated in renal artery stenosis?

It depends. On the clinical situation. Ace inhibitors are commonly used to control BP in renal artery stenosis and are not contraindicated. Their is this concern that ACE inhibitors may worsen ischemia to the stenotic kidney and for this reason patients have to be closely monitored. Read more...
Can make it worse. The ace inhibitors can make the renal artery stenosis worse leading to uncontrollable hypertension and possibly renal failure. Read more...

My father has renal artery stenosis--should he consider having an angiography/angioplasty?

Possibly yes. If he has severe hypertension not well controlled on multiple medications and/or deterioration in renal function in the setting of high grade renal artery stenosis, then renal artery angioplasty may be very beneficial. Consultation with a nephrologist and vascular surgeon is indicated. Good luck! Read more...
RX for RAS. For over 50 years I have only had good results in fixing a RAS when a proper study which measure renin in each renal vein shows rather the blocked kidney is making too much renin. Recent studies from Australia have documented what we found over 30 years ago. So don't mess with the kidney unless it is making too much renin. Read more...

What problems does renal artery stenosis typically cause?

Hypertension. Reduced renal blood flow causes the kidney to produce excess renin which causes hypertension. Most cases of stenosis can be managed by interventional radiologists placing a stent. Read more...
Hypertension. Renal artery stenosis usually causes elevation of the blood pressure and can result in kidney failure, both directly and indirectly. Taking ace inhibitors or angiotensin receptor blockers can worsen renal function if you have renal artery stenosis. Read more...

Can you tell me if there are non-surgical options for renal artery stenosis?

BP Medicines. The non surgical options likely will include having to take multiple blood pressure medicines. The renal artery stenosis causes an increase in blood pressure, so the hypertension must be controlled or your kidneys could fail. Read more...
Medicine. Hypertension management with medicine. No smoking. Statin therapy if bad cholesterol. Keep checking kidney function by your doctor. Read more...

What are some alternative treatments for renal artery stenosis?

A few options exist. First, we may observe only if we have good blood pressure and kidney function with no fluid overload with close monitoring by a nephrologist. If the case is not stable i.e. These factors are worse or not controlled then angioplasty is considered i.e. Ballooning with a stent placement may control the problem and save medication use. Bypass surgery is the last option. Read more...
Medicine vs Stents. There is no difference in outcomes when using a stent or medical therapy to treat renal artery stenosis (ras). Therefore a person can get a stent placed by a vascular surgeon to treat the condition. However a person can take multiple blood pressure medications without having to undergo surgery to treat the condition as well. Read more...
It depends. It depends on the degree of stenosis if it is more than 60% it certainly cause decrease blood flow to the kidneys therefore angioplasty (dilatation) might be necessary. Read more...
Angioplasty/Surgery. Generally, the treatment for renal artery stenosis is angioplasty (stretching the artery open with a balloon) with or without a stent, depending on the situation. If the stenosis is in a bad place or is not able to be fixed with angioplasty, surgery is an option. Sometimes, the stenosis can just be followed if there is not a problem with blood pressure or the stenosis is not damaging the kidney. Read more...
Stent or medical. There is no difference in outcomes when using a renal artery stent or medical therapy to treat renal artery stenosis. Therefore a person can get a stent placed by a vascular surgeon to treat the condition or a person can take multiple blood pressure medications without having to undergo surgery to treat the condition as well. Read more...

When is a screening for renal artery stenosis medically necessary?

Uncontrolled BP. When a patient who is taking 3 or 4 blood presure medicines but still has an elevated blood pressure, then they should be screened for renal artery stenosis (ras). Additionally, any individuals who are younger then 30 or older than 60 who have blood pressures in 200/100 range should also be checked. Read more...
Multiple. New onset or rapidly worsening hypertension. Difficult blood pressure control multi- drug regimens abdominal aneurysm worsening renal function testing. Read more...
Renal artery stenose. I specializes in this and can give much more detail during a 2nd opinion. Anyone with HTN at young age, sudden onset. severe HTN, abdominal bruit, drug resistant HTN ( not at goal with at least 3 drugs one of which is a diuretic and low salt diet. Read more...