Pregnancy disorder signals need to screen for heart disease

Nov 04, 2008

High blood pressure experienced during pregnancy could be a woman's earliest warning that she is at risk of developing heart disease – the number one killer of Canadian women – says Queen's University professor of Obstetrics and Gynecology, Graeme Smith.

Called pre-eclampsia, this type of high blood pressure occurs in 5-10 per cent of all pregnancies.

But because most practicing physicians are unaware of the connection between pre-eclampsia and the risk for future cardiovascular problems, they fail to follow up with screening tests. As a result, their patients aren't taking proactive steps to avoid potential heart attacks and strokes.

According to the 2007 Heart and Stroke Foundation Annual Report on Canadians' Health, Canadian women have now caught up to men in cardiovascular deaths, with almost 37,000 deaths annually from heart disease and stroke.

"This should be on every obstetrician's and family doctor's radar screen," says Dr. Smith, an expert in high-risk obstetrics who is affiliated with Kingston General Hospital's Perinatal Research Unit. "What's exciting for our research team is that we're mostly dealing with young, healthy women who now have the opportunity to protect themselves from developing a life-threatening condition years down the road."

The findings are published on-line in the American Journal of Obstetrics and Gynecology.

The study, which began five years ago, has followed the progress of 400 Ontario women, half of whom developed pre-eclampsia during their pregnancy. When screened a year after delivery, the women with pre-eclampsia showed underlying cardiovascular risk factors of elevated blood pressure and lipids (fats) at a rate that was two to three times greater than the control group.

In a recent study showing that the incidence of hypertension (high blood pressure) in Ontario women of reproductive age is the same as the incidence of pre-eclampsia – about seven per cent – the researchers conducting the survey failed to ask women about their pregnancies. "The awareness isn't there yet," says Dr. Smith, suggesting that guidelines be established for longer-term follow-up.

Noting that pregnancy is a type of stress test for people who are already in the health care system, he adds: "It can reflect underlying problems that may be reduced by changes in lifestyle before medication is required."

Source: Queen's University

Explore further: Researchers discover target for treating dengue fever

add to favorites email to friend print save as pdf

Related Stories

Risk of Newborn Heart Defects Increases with Maternal Obesity

Apr 08, 2010

(PhysOrg.com) -- The more obese a woman is when she becomes pregnant, the greater the likelihood that she will give birth to an infant with a congenital heart defect, according to a study conducted by researchers at the National ...

Recommended for you

Researchers discover target for treating dengue fever

9 hours ago

Two recent papers by a University of Colorado School of Medicine researcher and colleagues may help scientists develop treatments or vaccines for Dengue fever, West Nile virus, Yellow fever, Japanese encephalitis and other ...

Tracking flu levels with Wikipedia

9 hours ago

Can monitoring Wikipedia hits show how many people have the flu? Researchers at Boston Children's Hospital, USA, have developed a method of estimating levels of influenza-like illness in the American population by analysing ...

User comments : 0

More news stories

Chronic inflammation linked to 'high-grade' prostate cancer

Men who show signs of chronic inflammation in non-cancerous prostate tissue may have nearly twice the risk of actually having prostate cancer than those with no inflammation, according to results of a new study led by researchers ...

Turning off depression in the brain

Scientists have traced vulnerability to depression-like behaviors in mice to out-of-balance electrical activity inside neurons of the brain's reward circuit and experimentally reversed it – but there's ...

Better thermal-imaging lens from waste sulfur

Sulfur left over from refining fossil fuels can be transformed into cheap, lightweight, plastic lenses for infrared devices, including night-vision goggles, a University of Arizona-led international team ...

Hackathon team's GoogolPlex gives Siri extra powers

(Phys.org) —Four freshmen at the University of Pennsylvania have taken Apple's personal assistant Siri to behave as a graduate-level executive assistant which, when asked, is capable of adjusting the temperature ...