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Etiology of secondary hypertension hypertension high blood pressure
from wikipedia.org
Only in a small minority of patients with elevated arterial pressure, can a specific cause be identified. hypertension high blood pressure These individuals will probably have an endocrine or renal defect that, if corrected, could bring blood pressure back to normal values.
- Renal hypertension hypertension high blood pressure
- Hypertension produced by diseases of the kidney. This includes diseases such as polycystic kidney disease or chronic glomerulonephritis. Hypertension can also be produced by diseases of the renal arteries supplying the kidney. This is known as renovascular hypertension; hypertension high blood pressure it is thought that decreased perfusion of renal tissue due to stenosis of a main or branch renal artery activates the renin-angiotensin system.
- Adrenal hypertension
- Hypertension is a feature of a variety of adrenal cortical abnormalities. hypertension high blood pressure In primary aldosteronism there is a clear relationship between the aldosterone-induced sodium retention and the hypertension.
- In patients with pheochromocytoma increased secretion of catecholamines such as epinephrine and norepinephrine by a tumor hypertension high blood pressure (most often located in the adrenal medulla) causes excessive stimulation of [adrenergic receptors], which results in peripheral vasoconstriction and cardiac stimulation. This diagnosis is confirmed by demonstrating increased urinary excretion of epinephrine and norepinephrine and/or their metabolites hypertension high blood pressure (vanillylmandelic acid).
- Coarctation of the aorta
- Diet
- The North American diet that is high in fat and salt has been proven to exacerbate hypertension. hypertension high blood pressure A study in the U.S. found that patients placed on a strict vegetarian diet showed a significant benefit to their condition over the one year. Certain medications, especially NSAIDS (Motrin/ibuprofen) and steroids can cause hypertension. hypertension high blood pressure Imported licorice (Glycyrrhiza glabra) inhibits the 11-hydroxysteroid hydrogenase enzyme (catalyzes the reaction of cortisol to cortison) hypertension high blood pressure which allows cortisol to stimulate the Mineralocorticoid Receptor (MR) which will lead to effects similar to hyperaldosteronism, which itself is a cause of hypertension. hypertension high blood pressure [Reference: Harrisons Internal Medicine, online edition (2007-04-14)]
- Age
- Over time, the number of collagen fibers in artery and arteriole walls increases, hypertension high blood pressure making blood vessels stiffer. With the reduced elasticity comes a smaller cross-sectional area in systole, and so a raised mean arterial blood pressure.
High Blood Pressure and Hypertension
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Get the basics about hypertension -- what normal blood pressure is, and what causes high blood pressure. ... High blood pressure, also called hypertension, is ...
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About one in five Americans has high blood pressure. Of those people with hypertension, about one third to one half don't even know they have it.
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Hypertension: High Blood Pressure Medicine - ATACAND® (candesartan cilexetil) - www.ATACAND.com
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Learn all about high blood pressure and its treatment, from the National High Blood Pressure Education Program of the National Heart, Lung, and Blood Institute.
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Find Research and information on High Blood Pressure (Hypertension) including articles and expert advice on symptoms, treatment options, support groups and national...
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Article about hypertension, commonly referred to as high blood pressure. Persistent hypertension is one of the risk factors for strokes, heart attacks, and other conditions.
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Elderly with high blood pressure less likely to get lifestyle modification advice from doctors (EurekAlert!)
CHAPEL HILL – People older than 60 with high blood pressure are less likely than other groups of patients to receive advice from their doctors about lifestyle modifications that can help lower their blood pressure, a study by UNC researchers concludes.
For High Blood Pressure Patients, Preventing or Reducing Enlarged Heart May Decrease Risk for Diabetes (Newswise)
High-blood-pressure patients treated for enlarged heart (left ventricular hypertrophy, LVH) who have regression or prevention of LVH may also have a better chance of preventing diabetes. Led by physician-scientists at NewYork-Presbyterian Hospital/Weill Cornell Medical Center, the research is published in the November Hypertension, a journal of the American Heart Association (AHA).
UPDATE: Nebivolol Lowers Blood Pressure in African Americans With Stage I-II Hypertension as Demonstrated in a Study ... (PR Newswire via Yahoo! Finance)
Forest Laboratories, Inc. today announced the results of a double-blind, randomized, placebo-controlled clinical trial, published in the November 2007 issue of the Journal of Clinical Hypertension, which demonstrated that nebivolol significantly reduced sitting diastolic and systolic blood pressure used as monotherapy among African-American patients with stage I-II hypertension.
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