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Hypertension

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Hypertension, also referred to as high blood pressure, HTN or HPN, is a medical condition in which the blood pressure is chronically elevated. In current usage, the word "hypertension" without a qualifier normally refers to systemic, arterial hypertension.

Hypertension can be classified as either essential (primary) or secondary. Essential hypertension indicates that no specific medical cause can be found to explain a patient's condition. About 90-95% of hypertension is essential hypertension. Secondary hypertension indicates that the high blood pressure is a result of (i.e., secondary to) another condition, such as kidney disease or tumours (adrenal adenoma or pheochromocytoma).

Persistent hypertension is one of the risk factors for strokes, heart attacks, heart failure and arterial aneurysm, and is a leading cause of chronic renal failure. Even moderate elevation of arterial blood pressure leads to shortened life expectancy. At severely high pressures, defined as mean arterial pressures 50% or more above average, a person can expect to live no more than a few years unless appropriately treated. Beginning at a systolic pressure (which is peak pressure in the arteries, which occurs near the end of the cardiac cycle when the ventricles are contracting) of 115 mmHg and diastolic pressure (which is minimum pressure in the arteries, which occurs near the beginning of the cardiac cycle when the ventricles are filled with blood) of 75 mmHg (commonly written as 115/75 mmHg), cardiovascular disease (CVD) risk doubles for each increment of 20/10 mmHg.

For more information about Hypertension, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with hypertension

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Researchers Build World's Largest Disease Association Network

Researchers Build World's Largest Disease Association Network

Biology / Other

created Apr 15, 2009 | popularity 4.5 / 5 (14) | comments 3

(PhysOrg.com) -- If you suffer from hypertension, how much does your risk for developing diabetes or other illnesses increase? Medical experts have long known that many diseases are related to one another, ...


High fructose corn syrup: A recipe for hypertension

Medicine & Health / Research

created Oct 30, 2009 | popularity 5 / 5 (9) | comments 12

A diet high in fructose increases the risk of developing high blood pressure (hypertension), according to a paper being presented at the American Society of Nephrology's 42nd Annual Meeting and Scientific Exposition in San ...


Researchers reverse pulmonary arterial hypertension in mouse models

Medicine & Health / Research

created Oct 25, 2009 | popularity 5 / 5 (2) | comments 0

Researchers at the University of California, San Diego, have identified a key protein that promotes the development of pulmonary arterial hypertension in humans and mice. This groundbreaking discovery has implications for ...


Anti-aging gene linked to high blood pressure

Anti-aging gene linked to high blood pressure

Medicine & Health / Genetics

created Aug 19, 2009 | popularity 5 / 5 (12) | comments 3

Researchers at the University of Oklahoma Health Sciences Center have shown the first link between a newly discovered anti-aging gene and high blood pressure. The results, which appear this month in the journal ...


A rush of blood to the head -- anger increases blood flow

Medicine & Health / Research

created Jul 03, 2009 | popularity 5 / 5 (1) | comments 0

Mental stress causes carotid artery dilation and increases brain blood flow. A series of ultrasound experiments, described in BioMed Central's open access journal Cardiovascular Ultrasound, also found that this dilatory reflex ...


Sleep apnea thickens blood vessels, increases heart disease risk

Biology / Cell & Microbiology

created May 04, 2009 | popularity 5 / 5 (3) | comments 0

Obstructive sleep apnea, or periodic interruptions in breathing throughout the night, thickens sufferers' blood vessels. Moreover, it increases the risk of several forms of heart and vascular disease.


Psoriasis associated with diabetes and high blood pressure in women

Medicine & Health / Diseases

created Apr 20, 2009 | popularity 5 / 5 (2) | comments 0

Women with psoriasis appear to have an increased risk for developing diabetes and hypertension (high blood pressure), according to a report in the April issue of Archives of Dermatology.


Energy drinks may be harmful to people with hypertension, heart disease

Medicine & Health / Health

created Mar 25, 2009 | popularity 5 / 5 (1) | comments 0

People who have high blood pressure or heart disease should avoid consuming energy drinks, according to a Henry Ford Hospital study to be published online Wednesday in the Annals of Pharmacotherapy.


Not enough vitamin D in the diet could mean too much fat on adolescents

Not enough vitamin D in the diet could mean too much fat on adolescents

Medicine & Health / Research

created Mar 12, 2009 | popularity 5 / 5 (2) | comments 0

Too little vitamin D could be bad for more than your bones; it may also lead to fatter adolescents, researchers say.


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Common gene variants increase risk of hypertension, may lead to new therapies

Medicine & Health / Genetics

created Feb 15, 2009 | popularity 5 / 5 (1) | comments 0

A new study has identified the first common gene variants associated with an increased incidence of hypertension - a significant risk factor for heart attack, stroke and kidney failure. The report receiving ...


Over 50 percent of people with high blood pressure unaware they have condition

Medicine & Health / Diseases

created Nov 12, 2008 | popularity 4 / 5 (2) | comments 0

Results from the European study IMMIDIET, published today in the Journal of Hypertension, official journal of the European Society of Hypertension and International Society of Hypertension, confirm that elevated blood pressu ...


Hypertension disparity linked to environment

Medicine & Health / Health

created Oct 20, 2008 | popularity 4.5 / 5 (2) | comments 0

Social environment may play a greater role in the disparity between the numbers of African Americans living with hypertension compared to non-Hispanic whites with the disease. A study by researchers at the Johns Hopkins Bloomberg ...


More Americans have, get treated for high blood pressure

Medicine & Health / Diseases

created Oct 14, 2008 | popularity 3.5 / 5 (17) | comments 2

First, the bad news: More American adults have hypertension (high blood pressure) and prehypertension than ever before.


Leading worldwide cause of cardiovascular disease may be modified by diet

Medicine & Health / Health

created Jul 08, 2008 | popularity 4.6 / 5 (14) | comments 0

A new article indicates that an increased intake in minerals such as potassium, and possibly magnesium and calcium by dietary means may reduce the risk of high blood pressure and decrease blood pressure in people with hypertension. ...


A single mechanism for hypertension, insulin resistance and immune suppression

A single mechanism for hypertension, insulin resistance and immune suppression

Medicine & Health / Research

created Jun 30, 2008 | popularity 4.8 / 5 (33) | comments 2

Many of the 75 million Americans with essential hypertension also develop diabetes and other complications in addition to their high blood pressure, and researchers have discovered a common molecular mechanism ...