Etiology of secondary hypertension hypertension headache

from wikipedia.org

Only in a small minority of patients with elevated arterial pressure, can a specific cause be identified. hypertension headache These individuals will probably have an endocrine or renal defect that, if corrected, could bring blood pressure back to normal values.

Renal hypertension  hypertension headache

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 headache 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 headache 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 headache (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 headache (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 headache 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 headache Imported licorice (Glycyrrhiza glabra) inhibits the 11-hydroxysteroid hydrogenase enzyme (catalyzes the reaction of cortisol to cortison) hypertension headache 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 headache [Reference: Harrisons Internal Medicine, online edition (2007-04-14)]

Age

Over time, the number of collagen fibers in artery and arteriole walls increases, hypertension headache making blood vessels stiffer. With the reduced elasticity comes a smaller cross-sectional area in systole, and so a raised mean arterial blood pressure.

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Hypertension - Wikipedia, the free encyclopedia
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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