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Weight Loss Procedure Cuts Heart Risks

March 14, 2011 -- Severely obese adults may reap significant health benefits from bariatric surgery, including reduced heart risks. And rewards of the weight loss procedure may outweigh risks, according to a new scientific statement.

The scientific statement from the American Heart Association is the first to focus solely on bariatric surgery and cardiac risk factors, says lead author Paul Poirier, MD, PhD, of Laval University Hospital in Canada.

Poirier, director of the prevention and rehabilitation program at Laval’s Quebec Heart and Lung Institute, says in a news release that the new statement does not represent an across-the-board endorsement of bariatric surgery but provides views of experts on the procedure that can be used to inform doctors and obese patients.

"It is a consensus document that provides expert perspective based on the results of recent scientific studies," he says.

Bariatric Surgery Effective Way to Fight Obesity, Health Problems

Bariatric surgery is a term that includes various types of procedures aimed at restricting food intake and/or causing food to pass through the gastro-intestinal tract without being fully absorbed or digested.

The AHA has long held the position that bariatric surgery should be considered carefully, based on the medical profile of individual patients.

Operative mortality associated with bariatric surgery historically has been between 0.1% and 2.0%, with more recent data showing a mortality rate no more than 1%, according to the AHA.

“Obesity has reached epidemic proportions in the United States as well as in much of the industrialized world,” Poirier says. “The most rapidly growing segment of the obese population is the severely obese. The health consequences of severe obesity are profound.”

He says that compared to normal-weight people, a 25-year-old man who is severely obese has a 22% reduction in expected life span.

A person with a BMI of 25-29.9 is considered overweight, and 30 or greater obese.

Severe obesity is defined as having a body mass index of 40 or more. BMI is a measure of body fat based on a ratio of height and weight.

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