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Renovascular Hypertension
Alternate Names : Hypertension - Renovascular, Renal Hypertension
DefinitionRenovascular hypertension (high blood pressure) is caused by narrowing of the arteries that carry blood to the kidneys.
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Overview, Causes, & Risk Factors
Blood pressure is determined by the amount of blood pumped by the heart and the size and condition of the arteries. Many other factors can affect blood pressure, including the volume of water in the body; salt content of the body; condition of the kidneys; nervous system, or blood vessels; and levels of various hormones in the body.
Renovascular hypertension is a form of secondary hypertension (hypertension caused by another condition in the body). It occurs in less than 5% of all people with hypertension. Symptoms usually begin before age 30 or after age 50, depending on the cause of the damage to the kidney blood vessels.
Narrowing of the renal artery reduces blood flow to the kidney. Stenosis is often related to atherosclerosis but may be caused by injury to the artery that causes scarring. Reduced blood flow to the kidney leads to an excessive release of the hormone renin, a potent hormone that increases blood pressure.
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• Definition
• Overview, Causes, & Risk Factors
• Symptoms & Signs
• Prevention
• Diagnosis & Tests
• Treatment
• Prognosis
• Complications
• Calling Your Health Care Provider
• Pictures & Images
Topics that might be of interest to you Diseases & Conditions
• Acute Kidney Failure
• Atherosclerosis
• Heart Attack
• Heart Failure
• Hypertension
• Hypertensive Heart Disease
• Injury - Kidney and Ureter
• Renal Artery Stenosis
• Stroke
Tests & Exams
• Blood Pressure
• Intravenous Pyelogram
• Renal Arteriography
• Renal Scan
• Renin
Surgery & Procedures
• Angioplasty
Other Topics
• Acute
• Blindness
• Chest Pain
• Confusion
• Fatigue
• High Blood Pressure
• Nausea and Vomiting
• Weight Loss - Unintentional
Review Date : 6/3/2003
Reviewed By : A.D.A.M. Editorital. Previous Review by Andrew Koren, M.D., Department of Nephrology, NYU-Mount Sinai Medical Center, New York, NY. Review provided by VeriMed Healthcare Network (11/30/01).
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