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Doctor insights on: Why Exactly Are Ace Inhibitors Contraindicated In Renal Artery Stenosis

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Why exactly are ACE inhibitors contraindicated in renal artery stenosis?

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

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Dr. Stephen Scholand
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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


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

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

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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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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?

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 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 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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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

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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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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

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What questions should I ask the doctor after being diagnosed with renal artery stenosis?

What questions should I ask the doctor after being diagnosed with renal artery stenosis?

Amount of stenosis?: Is my blood pressure under control? Is my renal function ok? Do i need a stent? Do I have heart disease? Do I have pad? Do I have carotid artery disease? Do i need vascular screening? How do I fix my risk factors? ...Read more

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

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. ...Read more

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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

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Dr. Clarence Grim
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Renal Artery Stenosis (Definition)

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 ...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