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Topic: Renal artery stenosis

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	Channel3000.com - Health Encyclopedia - Renal Artery Stenosis
		Renal artery stenosis is a narrowing or blockage of the artery that supplies blood to?the kidney.
		Renal artery stenosis is caused when atheroembolic renal disease results in narrowing of the renal artery.
		Renal artery stenosis may cause chronic renal failure if it affects both renal arteries or if the high blood pressure?associated with this condition is prolonged or severe.
	www.channel3000.com /encyclopedia/6861781/detail.html (771 words)

	Renal artery stenosis
		Renal artery stenosis is a blockage or narrowing of the major arteries that supply blood to the kidneys.
		Renal artery stenosis occurs when the flow of blood from the arteries leading to the kidneys is constricted by tissue or artherosclerotic plaque.
		Renal artery stenosis is a serious and potentially life-threatening condition, and should always be treated by a healthcare professional familiar with the disorder.
	www.lifesteps.com /gm/Atoz/ency/renal_artery_stenosis_pr.jsp (698 words)

	nbc4.tv - Health Encyclopedia - Renal Artery Stenosis
		Renal artery stenosis often causes hypertension (high blood pressure)?with no other signs of its presence, and it is usually discovered in investigation for the cause of hypertension that is difficult to control.
		Fibromuscular dysplasia is a congenital disorder involving thickening of the arterial wall and is a cause of renal artery stenosis in younger adults, particularly women 20-40 years old.
		A balloon angioplasty (a radiographic procedure during which a balloon-tipped catheter is threaded through the artery) or a stent placement across the stenosis may be an alternative to surgery to open the stenosed area.
	www.nbc4.tv /encyclopedia/6861781/detail.html (920 words)

	THE MERCK MANUAL OF GERIATRICS, Ch. 98, Renal Disorders
		Renal artery stenosis is common in the elderly and is usually due to atherosclerosis.
		Although often totally asymptomatic, renal artery stenosis should be considered in an elderly patient with a sudden onset of hypertension, exacerbation of previous well-controlled hypertension, unexplained hypokalemia (eg, from hyperaldosteronism), or an unexplained increase in blood urea nitrogen or creatinine, especially after treatment with an angiotensin-converting enzyme inhibitor.
		Renal artery thrombosis may complicate severe aortic and renal arterial atherosclerosis, especially when renal blood flow is reduced because of heart failure or volume depletion.
	www.merck.com /mrkshared/mmg/sec12/ch98/ch98d.jsp (465 words)

	Interventional Radiology at Penn: Health Information - Renal Artery Stenosis
		Renal artery stenosis may be the cause of a sudden drop in the filtering ability of the kidney (known as acute renal failure) or unexplained gradual deterioration of kidney function (known as progressive azotemia).
		When renal artery stenosis is present to one kidney but that kidney appears to be receiving enough blood anyway, then treatment may be unnecessary (except to eliminate risk factors such as smoking, high cholesterol, and high blood pressure).
		Another surgical option is to bypass the kidney artery to the artery of a neighboring organ, such as the spleen for the left kidney (a splenorenal bypass) or the liver for the right kidney (a hepatorenal bypass).
	www.pennhealth.com /int_rad/health_info/renal.html (1335 words)

	MedlinePlus Medical Encyclopedia: Renal artery stenosis
		Renal artery stenosis is, in fact, among the most common causes of secondary (caused by another condition) hypertension.
		Renal arteriography shows the exact location of the stenosed (blocked) area.
		Renal hypertension caused by renal artery stenosis may be difficult to treat.
	www.nlm.nih.gov /medlineplus/ency/article/001273.htm (772 words)

	TheIndyChannel.com - Health Encyclopedia - Renal Artery Stenosis
		Fibromuscular disease, a condition more common in young women in which fibrous tissue grows in the wall of the renal artery and narrows it, is a second cause.
		It may also be caused when scar tissue forms in the renal artery after acute arterial obstruction or traumatic injury to the kidney.
		This may result in chronic renal failure if there is only one functional kidney or if both renal arteries are affected.
	www.theindychannel.com /encyclopedia/6861781/detail.html (920 words)

	Virginia Hospital Center - Renal Artery Stenosis
		Renal artery stenosis is a narrowing or blockage of the artery that supplies the kidney, caused by atherosclerosis, fibromuscular dysplasia of the renal artery wall, or scar formation in the artery.
		Renal artery stenosis often causes hypertension with no other signs of its presence, and it is usually discovered in investigation for the cause of hypertension that is difficult to control.
		A balloon angioplasty (a radiographic procedure during which a balloon-tipped catheter is threaded through the artery) or stent placement across the stenosis may be an alternative method of opening the stenosed area instead of surgery.
	www.virginiahospitalcenter.com /content/adam_001273.asp (676 words)

	Renal artery stenosis Information on Healthline
		Renal artery stenosis is a narrowing or blockage of the artery that supplies blood to the kidney.
		It is caused by atherosclerosis, fibromuscular dysplasia of the renal artery wall, or scar formation in the artery.
		Renal artery stenosis often causes hypertension (high blood pressure) with no other signs of its presence, and it is usually discovered in investigation for the cause of hypertension that is difficult to control.
	www.healthline.com /adamcontent/renal-artery-stenosis (622 words)

	ABC of arterial and venous disease: Renal artery stenosis -- McLaughlin et al. 320 (7242): 1124 -- BMJ (Site not responding. Last check: 2007-11-06)
		Renal artery stenosis is becoming increasingly common because of atherosclerosis in an ageing population.
		of hypertension, atheromatous renal artery stenosis is not commonly
		Stent insertion for ostial atheromatous renal artery stenosis
	bmj.bmjjournals.com /cgi/content/full/320/7242/1124 (2149 words)

	Renal artery stenosis - Wikipedia, the free encyclopedia
		Renal artery stenosis is the narrowing of the renal artery.
		It is often unmasked by the rapid worsening of renal function in response to the administration of a drug from the ACE inhibitor class.
		If the stenosis is long standing and severe the GFR in the affected kidneys never increases again and (pre-renal) renal failure is the result.
	en.wikipedia.org /wiki/Renal_artery_stenosis (360 words)

	Renal Artery Stenosis Glossary of Terms with Definitions on MedicineNet.com
		This technique can be usefully used to look at arteries in many areas of the body, including the brain, neck (carotids), heart, aorta, chest, pulmonary circuit, kidneys, gastrointestinal tract, and limbs.
		Artery: A vessel that carries blood high in oxygen content away from the heart to the farthest reaches of the body.
		Arterial blood is the means by which oxygen and nutrients are transported to tissues while venous blood is the means by which carbon dioxide and metabolic by-products are transported to the lungs and kidneys, respectively, for removal from the body.
	www.medicinenet.com /renal_artery_stenosis/glossary.htm (2238 words)

	UK NKF - Kidney Disease
		Renal artery stenosis is occasionally seen in young people, when it is caused by muscular bands in the artery to the kidney.
		In this, a narrow plastic tube is passed into the artery in the groin and up the abdomen to the area of the kidneys.
		It is also possible for a surgeon to operate on the artery and to relieve the narrowing, often by using a piece of vein from the leg as a bypass graft.
	www.kidney.org.uk /Medical-Info/kidney-disease/Ras.html (1184 words)

	MIR Teaching file case rs001 (Site not responding. Last check: 2007-11-06)
		Renal scintigraphy with angiotensin converting enzyme inhibitors is a sensitive and specific way to screen patients with suspected renovascular hypertension.
		After the renal scinitgraphy an arteriogram was performed showing a high-grade left renal artery lesion just distal to the ostium with only minimal disease on the right.
		Renal scintigraphy with angiotensin converting enzyme inhibitors is an accurate non-invasive way to screen patients for renovascualr hypertension.
	gamma.wustl.edu /rs001te187.html (361 words)

	Quantification of Renal Artery Stenosis (Site not responding. Last check: 2007-11-06)
		While renal artery stenosis is an uncommon cause of hypertension, it is important because it is treatable and potentially curable.
		The search for tests for renal artery stenosis has led to the evaluation of a number of imaging techniques including captopril radionuclide renography, duplex ultrasound, and MR angiography, each of which has been shown to have significant limitations in terms of sensitivity, specificity, and reproducibility.
		Initial studies of CT angiography have reported sensitivities of 92-100% and specificities of 83-100% for significant renal artery stenosis.
	www.ctisus.org /angioatlas/abdominal/renal_sten.html (183 words)

	eMedicine - Renal Artery Stenosis : Article by Bruce S Spinowitz, MD, FACP
		Renal ultrasound is performed frequently in patients with renal dysfunction.
		Intravenous subtraction angiography is sensitive for identifying stenosis of the main renal artery but does not demonstrate accessory or branch renal arteries sufficiently; however, this technique avoids the use of a high volume of contrast and the risk of artery puncture and arterial atherosclerotic emboli.
		Greco BA, Breyer JA: Atherosclerotic ischemic renal disease.
	www.emedicine.com /med/topic2001.htm (5352 words)

	Renal artery - Wikipedia, the free encyclopedia
		The arterial supply of the kidneys is variable and there may be one or more renal arteries supplying each kidney.
		Due to the position of the aorta, the inferior vena cava and the kidneys in the body, the right renal artery is normally longer than the left renal artery.
		Renal artery stenosis, or narrowing of one or both renal arteries will lead to hypertension as the affected kidneys release renin to increase blood pressure to preserve perfusion to the kidneys.
	en.wikipedia.org /wiki/Renal_artery (448 words)

	Stenosis-dependent role of nitric oxide and prostaglandins in chronic renal ischemia -- Tokuyama et al. 282 (5): 859 -- ...
		Unilateral renal artery stenosis caused 45 ± 1 and 73 ± 1% decrements
		Renal interstitial NOx and PG levels were determined by using the microdialysis technique (2, 7, 13, 20, 33).
		Chronic renal ischemia was established by clipping the left renal artery.
	ajprenal.physiology.org /cgi/content/full/282/5/F859 (4448 words)

	Renal Artery Stenosis
		Any patient with impaired renal function and severe hypertension should be evaluated for renal artery arterial occlusive disease.
		When renal functional impairment is advanced and hypertensive control has proven difficult, treatment of renal artery narrowing is indicated.
		In rare cases, open surgical treatment with either endarterectomy (a direct clean-out of the artery) or surgical bypass will be necessary to treat severely diseased renal arteries.
	www.brighamandwomens.org /vascularsurgery/RenalArtery.aspx (203 words)

	Diagnosis of Renal Artery Stenosis -- 141 (9): I-66 -- Annals of Internal Medicine (Site not responding. Last check: 2007-11-06)
		for Diagnosing Renal Artery Stenosis." It is in the 2 November
		Renal artery stenosis is a narrowing of the artery that supplies
		artery stenosis is to x-ray the renal arteries after injecting
	www.annals.org /cgi/content/full/141/9/I-66 (415 words)

	Renal artery stenosis - MayoClinic.com (Site not responding. Last check: 2007-11-06)
		Renal arteries supply oxygen-rich blood to your kidneys, which your kidneys need to stay healthy and perform their normal functions.
		Narrowed renal arteries (renal artery stenosis) reduce blood flow to the kidneys, which can result in secondary high blood pressure and irreversible kidney damage.
		Thickening of the muscle and fibrous tissue of the renal arteries (fibromuscular dysplasia) — a condition most common in young women
	www.mayoclinic.com /health/renal-artery-stenosis/AN01062 (309 words)

	Renal artery stenosis
		It is narrowing of the artery that supplies blood to the kidneys.
		an abnormality of the artery causes progressive narrowing of the renal artery during growth.
		Signs of disease in the arteries can include a bruit (a sound with a stethoscope suggesting a narrowed artery), which may be heard over the abdomen in the case of renal artery stenosis.
	renux.dmed.ed.ac.uk /EdREN/EdRenINFObits/RAS.html (674 words)

	Renal Artery Stenosis - WrongDiagnosis.com
		Narrowing of the artery supplying blood to the kidneys, causing decreased blood flow through the affected kidney and subsequent salt and fluid retention and hypertension
		Detailed information about the causes of Renal Artery Stenosis including medication causes and drug interaction causes can be found in our causes pages.
		With a diagnosis of Renal Artery Stenosis, it is also important to consider whether there is an underlying condition causing Renal Artery Stenosis.
	www.wrongdiagnosis.com /r/renal_artery_stenosis/intro.htm (442 words)

	Sumer's Radiology Site: Renal Artery Stenosis-Anatomical Distribution
		Vo NJ et al in their article entitled "Anatomic distribution of renal artery stenosis in children: implications for imaging" in Pediatr Radiol 2006 Jul 4; [Epub ahead of print] found that-
		"Focal Renal Artery stenosis in their study group was distributed as follows 25% main renal artery, 50% 2nd order branch, 12.5% 3rd order branch, and 12.5% accessory renal artery.
		captopril mag3 scan is a screening test for RAS but it has poor senstivity for branch vessel stenosis which is being emphasized in this study that majority of the anatomical location of narrowing is in branch vessels hence the role of angiography as the primary test is exemplified..
	sumerdoc.blogspot.com /2006/07/renal-artery-stenosis-anatomical.html (370 words)

	Renal artery stenosis (Disease)... Fort Lauderdale, Florida (Site not responding. Last check: 2007-11-06)
		To search for documents containing all of your keywords simply enter the words.
		Renal artery stenosis is, in fact, among the most common causes of secondary hypertension (see hypertension).
		Renal artery stenosis may cause chronic renal failure if it affects both renal arteries or if the hypertension associated with this condition is prolonged or severe.
	www.browardhealth.org /18241.cfm (710 words)

	Dr. Koop - Renal artery stenosis
		Home > Health Reference > Renal artery stenosis
		The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition.
		You should promptly seek professional medical care if you have any concern about your health, and you should always consult your physician before starting a fitness regimen.
	www.drkoop.com /ency/93/001273.html (472 words)

	Suspected bilateral renal artery stenosis -- Lee et al. 89 (9): 1070 -- Heart
		Suspected bilateral renal artery stenosis -- Lee et al.
		A 49 year old man was referred to our interventionist for percutaneous
		Doppler examination of the renal arteries was arranged because
	heart.bmjjournals.com /cgi/content/full/89/9/1070 (122 words)

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