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Doctor insights on: Renal Artery Stenosis

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Dr. Clarence Grim
67 Doctors shared insights

Renal Artery Stenosis (Overview)

Stenosis is narrowing so renal artery stenosis is narrowing of an artery that sends blood to you kidney. The effect usually is your blood pressure goes up and in my experience this is the most difficult kind of high blood pressure to manage using medicines. It usually requires some kind of repair - surgery or dilatation.


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What are all the causes and symptoms of renal artery stenosis?

What are all the causes and symptoms of renal artery stenosis?

Aretherosclerosis: Of renal artery is most common cause, next is fibromuscular dyplasia. Other causes are uncommon & include neurofibromatosis with a fibroma causing stenosis, arteritis or a renal artery aneurism. Ras itself does not cause symptoms & found during or following work-uop for refractory hypertension. Uncontrolled hypertension can cause headaches & at worst acute heart failure. ...Read more

Dr. Clarence Grim
67 Doctors shared insights

Renal Artery Stenosis (Overview)

Stenosis is narrowing so renal artery stenosis is narrowing of an artery that sends blood to you kidney. The effect usually is your blood pressure goes up and in my experience this is the most difficult kind of high blood pressure to manage using medicines. It usually requires some kind of repair - surgery or dilatation.


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Living with Coronary Artery Disease (Checklist)

Take medications as prescribed
Once
Exercise daily as recommended by your doctor or trainer
daily
Limit meat, dairy, and fats as much as possible
Once
Eat whole grains only - not white bread
Once
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How do you usually diagnose renal artery stenosis?

How do you usually diagnose renal artery stenosis?

Renal arter stenosis: The diagnosis is made with ultrasound dopplers to check blood flow rates that reveal waves created by the blockage, or arteriograms. Ultrasound has no risk, but is very operator dependent and can be misleading in both over and under diagnosis. Arteriograms are more accurate, but only show an anatomic blockage, and don't help with functional testing. Finding blocks doesn't mean they need treatment. ...Read more

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Should renal artery stenosis be treated using stenting or bypass?

Should renal artery stenosis be treated using stenting or bypass?

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

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Managing Spinal Stenosis (Checklist)

Use NSAIDs for relief
Daily
Get an x-ray or MRI if you are not better in 6 weeks
Once
See a spine specialist if you are not better in 6 weeks
Once
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What are some treatments for renal artery stenosis?

What are some treatments for renal artery stenosis?

See below: Renal artery stenosis is narrowing of the kidney arteries most commonly due to cholesterol plaques accumulating inside the walls of the blood vessel. There are other causes as well. A cathetor can be inserted into the blood vessel and a balloon can be inflated to restore the lumen size. A stent is inserted to keep it open. There are surgical options in special circumstances, . ...Read more

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I need angioplasty for renal artery stenosis treatment how long should I take off work for?

If indicated: The indication for this has been questioned but if its apropiate then a few days at best to let the groin heal up snd your fine. ...Read more

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Can you explain renal artery stenosis?

Can you explain renal artery stenosis?

Will try: Renal artery stenosis is a blockage of the blood flow to the kidney. This may be associated with high blood pressure. It can be diagnosed with a doppler ultrasound of the renal artery in suspected individuals, or some form of a renal angiogram (such as ct or mr angiograms). The stenosis can be dilated sometimes resulting in a decrease in blood pressure levels. ...Read more

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Can you tell me about renal artery stenosis?

Can you tell me about renal artery stenosis?

Narrow kidney artery: Renal artery stenosis is a narrowing of the kidney artery. In most cases it is a benign condition but does imply there is generalized atherosclerosis. In some cases it can cause a rise in blood pressure. In rare cases it may need treatment with an angioplasty and stent. ...Read more

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What are usual signs of renal artery stenosis?

Usually none: You may have high blood pressure or decreasing renal function. ...Read more

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How do you usually diagnose renal artery stenosis?

Renal arter stenosis: The diagnosis is made with ultrasound dopplers to check blood flow rates that reveal waves created by the blockage, or arteriograms. Ultrasound has no risk, but is very operator dependent and can be misleading in both over and under diagnosis. Arteriograms are more accurate, but only show an anatomic blockage, and don't help with functional testing. Finding blocks doesn't mean they need treatment. ...Read more

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What is the typical prognosis for renal artery stenosis?

What is the typical prognosis for renal artery stenosis?

Depends on type: Young people are different than older ones. The disease is slowly progressive esp in the atherosclerotic variety usually in older patients. So, newer research suggests that observation is equivalent to aggressive intervenion in most cases due to similar outcomes. ...Read more

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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

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What are some alternative names of renal artery stenosis?

What are some alternative names of renal artery stenosis?

Ischemic nephropathy: Stenosis means narrowing, most commonly due to cholesterol plaque in blood vessels. This may lead to ischemia or lack of blood/oxygen to the tissue when extreme. Nephropathy is any condition/disease in the kidney. ...Read more

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What are all the causes and symptoms of renal artery stenosis?

Aretherosclerosis: Of renal artery is most common cause, next is fibromuscular dyplasia. Other causes are uncommon & include neurofibromatosis with a fibroma causing stenosis, arteritis or a renal artery aneurism. Ras itself does not cause symptoms & found during or following work-uop for refractory hypertension. Uncontrolled hypertension can cause headaches & at worst acute heart failure. ...Read more

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What is the prognosis for someone with renal artery stenosis?

What is the prognosis for someone with renal artery stenosis?

Renal artery stenose: 52 F asks prognosis of RAS. ANS: I specialize in this for over 50 years. A complex question that deserves a 2nd opinion from me. Depends on cause, prior treatment, other problems but almost all can be managed today by BP meds. ...Read more

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What is the definition or description of: renal artery stenosis?

What is the definition or description of: renal artery stenosis?

Stenosis: Stenosis is narrowing so renal artery stenosis is narrowing of an artery that sends blood to you kidney. The effect usually is your blood pressure goes up and in my experience this is the most difficult kind of high blood pressure to manage using medicines. It usually requires some kind of repair - surgery or dilatation. ...Read more

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What is renal artery stenosis (ras)?

Narrowed artery (ies): Narrowing of one or both renal arteries that lead from the aorta to the kidneys is called renal artery stenosis. Causes are atherosclerosis or fibromuscular dysplasia (fmd). Fmd is a non-inflammatory, nonatherosclerotic process. Both atherosclerosis and fmd cause hypertension and can lead to kidney failure. Imaging should be done to establish the diagnosis. Kidney specialists usually treat this dx. ...Read more

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What people should be screened for renal artery stenosis?

High blood pressure: Patients who have uncontrolled blood pressure despite 3 or more medications at maximal dosages are considered for possible secondary hypertension. Ras is a cause of secondary hypertension.
Also people who are younger than 35 or older than 65 who develop sudden or new onset hypertension, are usually screened.
Unexplained renal failure especially with different sized kidneys should be screened. ...Read more

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What are the treatments for renal artery stenosis?

RAS: RAS due to atherosclerosis (ASO) more often than fibromuscular disease (FMD) Medical treatment does not alter RAS but can control BP. RAS can progress to occlusion. Controlling ASO risk factors appropriate. Open renal bypass infrequent. Angioplasty/stent more common but controversial. PTA probably Rx of choice for FMD. PTA/stent for ASO if flash pulmonary edema, uncontrolled BP, renal failure. ...Read more

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Does ras stand for renal artery stenosis?

Does ras stand for renal artery stenosis?

RAS = renal art sten: Yes at least is you are talking to a HTN Dr. ...Read more

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What are some treatments for renal artery stenosis?

See below: Renal artery stenosis is narrowing of the kidney arteries most commonly due to cholesterol plaques accumulating inside the walls of the blood vessel. There are other causes as well. A cathetor can be inserted into the blood vessel and a balloon can be inflated to restore the lumen size. A stent is inserted to keep it open. There are surgical options in special circumstances, . ...Read more

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

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

Medicine: Hypertension management with medicine. No smoking. Statin therapy if bad cholesterol. Keep checking kidney function by your doctor. ...Read more

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

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

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Diagnosed with Renal Artery Stenosis and resistant hypertension of 150/100 w/ 3 meds. Will resolving the stenosis correct the resistant hypertension?

Diagnosed with Renal Artery Stenosis and resistant hypertension of 150/100 w/ 3 meds. Will resolving the stenosis correct the resistant hypertension?

Not always: Stenting is now mainly used in people who fail maximal medical therapy as the CORAL trial showed that's tenting as a first line treatment was not better than medical therapy for most people. If maximal medical therapy has failed then you may be a candidate for stenting or renal artery bypass surgery but even these do not always correct the problem but at present are the best further treatments a ...Read more

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Should renal artery stenosis be treated using stenting or bypass?

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

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What are some alternative treatments for renal artery stenosis?

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

Dr. Oscar Novick
1 Doctor shared a insight

Artery (Definition)

Arteries are defined as blood vessels which carry blood away from the heart (to either the body or lungs). Arteries: higher pressure, thicker walls, stretch (pulse) with each heart contraction & deliver blood to the arterioles which control the flow to individual capillaries. Veins are blood vessels which carry blood from capillaries back to the heart (body to right heart; ...Read more


Stricture (Definition)

A stricture is an anatomic narrowing of any structure in the body with a lumen. Depending on the organ, the underlying causes can be traumatic, ...Read more