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High blood pressure is redefined as 130, not 140: US guidelines

[LOS ANGELES] High blood pressure was redefined on Monday by the American Heart Association, which said the disease should be treated sooner, when it reaches 130/80, not the previous limit of 140/90.

"High blood pressure is now defined as readings of 130 mm Hg and higher for the systolic blood pressure measurement, or readings of 80 and higher for the diastolic measurement," said the guidelines.

Doctors now recognise that complications "can occur at those lower numbers," said the first update to comprehensive US guidelines on blood pressure detection and treatment since 2003.

The new standard means that nearly half (46 per cent) of the US population will be defined as having high blood pressure.

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Previously, one in three (32 per cent) had the condition, which is the second leading cause of heart disease and stroke, after cigarette smoking.

The normal limit for blood pressure is considered 120/80.

Once a person reaches 130/80, "you've already doubled your risk of cardiovascular complications compared to those with a normal level of blood pressure," said Paul Whelton, lead author of the guidelines published in the American Heart Association journal, Hypertension and the Journal of the American College of Cardiology.

"We want to be straight with people - if you already have a doubling of risk, you need to know about it."

He said a diagnosis of the new high blood pressure does not necessarily mean a person needs to take medication, but that "it's a yellow light that you need to be lowering your blood pressure, mainly with non-drug approaches."

The changes were announced at the American Heart Association's 2017 Scientific Sessions conference in Anaheim, California.

AFP

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