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Doctor insights on: Angiogram Of Renal Arteries

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Dr. John Chiu
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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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What are some treatments for blocked renal arteries?

What are some treatments for blocked renal arteries?

Treat renal stenosis: The treatment of a blocked kidney artery is controversial. The 3 ways would be medications, surgery, or arterial stents. There is evidence that all 3 work equally well, even in severe cases, although there are some cases where surgery or a stent may yield a better outcome. However, the risk of surgery or stents is not small, and therefore, a conservative approach with medicine is often best. ...Read more

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Could putting a stent in my renal arteries help my ed?

Could putting a stent in my renal arteries help my ed?

No: No but if you have blockages in your aorta or iliac arteries this can block blood flow to your perineum and cause ed. A ct angiogram or vascular study with a penile-brachial index can help evaluate this. ...Read more

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I'm having stent procedure to open my renal arteries. How long is the recovery?

I'm having stent procedure to open my renal arteries. How long is the recovery?

Relatively quick: In general your renal arteries 'recover' right away, e.g. If you had renal hypertension due to stenosis it is resolved with the percutaneous revascularization. The recovery is for the groin access: most people stay overnight and restrict (some) activities for 1-2 weeks. A week is usually sufficient. ...Read more

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What to do if I had a stent put in my renal arteries in november of this year to open the arteries up?

What to do if I had a stent put in my renal arteries in november of this year to open the arteries up?

Follow-up: You should remain on anti-platelet therapy (aspirin or Clopidigrel) if you are not on another blood thinner. The stent should be checked with duplex (ultrasound) every 6 months to a year. ...Read more

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Does caffeine cause vasoconstriction, or vasodilation of the renal arteries?

Does caffeine cause vasoconstriction, or vasodilation of the renal arteries?

Vasoconstrict: The mechanisms of the kidneys are complex. Caffeine tends to cause vasoconstriction. The kidneys chemical mediators can counteract this effect however. Just like anything we take into our bodies you should use caffeine in moderation. Don't overdo it. ...Read more

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My baby is born with narrowed renal arteries. What effect will this condition have on urine volume?

My baby is born with narrowed renal arteries. What effect will this condition have on urine volume?

There are several: There are several concerns. The immediate is blood pressure. If the blood pressure is high for an infant it may need to be treated. If the kidney function tests are normal in the first few weeks of life then urine volume should be relatively normal. If Blood pressure becomes elevated and untreated, kidney disease can set in and reduce urine volume fluids need to be restricted at that time. ...Read more

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My brother21years old,has double renal arteries originating from the aorta on one side and hypertension because of that.How can be treated permanently?

My brother21years old,has double renal arteries originating from the aorta on one side and hypertension because of that.How can be treated permanently?

Renal hypertension: Permanent cure???? Nothing can promise permanent resolution of his problems. Studies and experience have shown that in most such patients, surgery ( resection of smaller blood vessel) can accentuate problems. However in some cases such surgeries can cause some relief. Your nephrologist and a good vascular surgeon should be able to give you best advice. ...Read more

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Could putting a stent in my renal arteries cause me to pee more?

Could putting a stent in my renal arteries cause me to pee more?

Probably not: Renal artery stents can improve function of the kidney. Increased urination probably a result of increased hydration (fluid intake). ...Read more

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My 20 week ultra sound showed my baby has 2 renal arteries to her left kidney. Is this a problem and what issues could this cause if any?

My 20 week ultra sound showed my baby has 2 renal arteries to her left kidney. Is this a problem and what issues could this cause if any?

Kidney anomaly: About 1/500 individuals in the general population will have an anomaly in the formation of the kidneys.The one you mention means there is probably separate upper and lower segments on that side and one would wonder if this occurred in isolation or as part of a duplication of both kidney & collecting system. These deserve watching but are compatible with a relatively normal life. ...Read more

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What is the exact function of the renal artery?

What is the exact function of the renal artery?

Blood to kidneys: The primary job of the renal arteries is to supply blood (oxygen, nutrients) to the kidneys from the heart. They branch directly from the aorta. ...Read more

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What is a normal diameter for the renal artery?

What is a normal diameter for the renal artery?

Variable: The exact diameter is not the issue since many people have small arteries with no problems. The problem usually is in the stenosis i.e. Constricted area. More than 60% stenosis (narrowing) is considered severe. However, severity by itself is not the only reason to do intervention (put a stent) since if the kidney function, bp, potassium are stable with no resistant edema observation only is chosen. ...Read more

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What are some symptoms of renal artery disease?

What are some symptoms of renal artery disease?

High blood pressure: Most of the time no symptoms are felt. However, in advanced renal artery disease not only blood pressure is elevated but kidney function may become depressed giving rise to symtoms like fatigue and edema. ...Read more

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How is renal artery disease typically diagnosed?

Doppler or angiogram: Presents with hypertension and kidney failure. Non invasive testing can be ultrasond with doppler, ct with contrast. Invasive testing- angiogram. ...Read more

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Are the stents put in for renal artery disease temporary or permanent?

Are the stents put in for renal artery disease temporary or permanent?

Permanent: Arterial stents are meant to be permanent and are rarely ever removed. They can, however, develop restenosis or renarrowing that may require further intervention. ...Read more

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What exactly is renal artery occlusion?

Blockage / narrowing: Of renal artery caused by atherosclerotic plaque or in few instances by fibromuscular dysplasia which occurs mostly in younger women, or from a fibrous obstruction in people with nerofibromatosis. ...Read more

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Please explain what a renal artery doppler is?

Please explain what a renal artery doppler is?

Renal artery Doppler: Doppler ultrasound uses focused sound waves to measure the velocity of blood flowing through the renal artery.If the blood flows more rapidly through the artery it suggests that there is a narrowing in the artery. The focused sound waves can also be used to locate where the artery is narrowed. Because it is an indirect measure of narrowing, it is used as a screening test only. ...Read more

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What patients could require a renal artery ultrasound?

Uncontrolled htn: Ptsd with difficult to control hypertension, looking for renal artery stenosis, and pts with acute renal failure as part of their work up. ...Read more

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Angiogram (Definition)

An angiogram is a picture of the inside of ones blood vessel (vein or artery) created by injecting a clear liquid (radiopaque dye) which appears to be white (or ...Read more