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.
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.

Related Questions

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

High blood presure. Most commonly it is due to build up of plaque in the kidney blood vessels, causing narrowing of the renal /kidney arteries and decreased blood flow to the organ. This may result in loss of function and high blood pressure.Most patients are unaware this is occuring. Read more...
Depends on risk. There are two major causes of the renal arterial lesions: atherosclerosis and fibromuscular dysplasia. There are rare less frequent causes, such as congenital. Read more...
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...

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...

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...

What are usual signs of renal artery stenosis?

High blood pressure. Renal artery stenosis is typically discovered for evaluation of high blood pressure. Otherwise, it rarely would result in pain or other symptoms felt by a patient. Read more...
Signs of Renal Steno. 49 wants to know signs of RAS. 1. sudden onset of severe HTN 2. An continuous bruit heard by your Dr over your renal arteries. 3. A renal imaging study shows a small kidney. 4. A high blood love of renin. 5. A low blood Na 6. Secondary aldosteronism 7. If advanced increased blood creatinine and BUN. 8. If more advance renal failure. Brain fog 9. Malignant HTN 10 blindness 2nd HTN eye damage. Read more...

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...
MRA or CTangio. We suspect ras when creatinine gets worst after using ace inhibitors . Triple phase nuclear scans and nuclear renal study with Captopril stimulation may help as screening tests. Doppler ultrasound is difficult and unreliable at present. Only after stents are placed in the stenosis renal arteries if the renal numbers get better we are assured the diagnosis was correct. Mra or ct angio are riskier. Read more...
DX RAS. 33F asks do you Dx renal artery stenosis. 1. I take a detailed history of the HTN searching for sudden onset and difficult to control and severe HTN> 2. I listen for a renal artery bruit in the belly over the kidney area (caused by blood gushing thru a narrowed artery. At you age I hear this in about 75% who have RAS. 3. Do selective renal arteriogram. 4.Measure renin from each renal vein. Read more...

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...
Fair. If symptomatic, will, require intervention or surgery with generally good results for atherosclerotic etiology. However, most have other risk factors for coronary and PVD which impact the long term. Read more...
Renal artery stenose. 38 F from CA. asks What is the typical prognosis for renal artery stenosis. ANS: There is no typical prognosis ss there are many causes & locations. I have specialized in this f4or 50 years. If u do 2nd opinion we can get more information & I can b more specific. FYI: many with normal BP have RAS so just having RAS does not mean it is causing HBP. You need to see a HTN specialist. Read more...

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...
Renal artery stenose. alternatie names for RAS. ANS:Renovascular hypertension, blocked kidney artery. I specialize in this and happy to do 2nd opinion to help you and your team figure out what is going on. Read more...

What is the prognosis for someone with renal artery stenosis?

Good. Medical management until stent needed. Don't go to stent too early. May not need stent if kidney already damaged. Read more...
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...

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...
Narrow kidney artery. Narrowing the artery to a kidney reduces blood flow to that kidney. As a result high blood pressure can develop. It can be treated by passing a balloon catheter into that artery and expanding the balloon. However, this does not always cure the high blood pressure. The reason could be that the kidney has already been damaged and it is too late to fix it with improved blood supply. Read more...
RAS. Renal artery stenosis is a blockage in the artery leading to the kidney. The blockages are treated only when they are significant clinically. Usually the blockage needs to be greater than 70% and accompanied by clinical symptoms ( poorly controlled htn, flash pulmonary edema , worsening renal function). The stenosis are most commonly caused by atherosclerosis and fibromuscular dysplasia. Read more...