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Depression, anxiety from the death of loves ones causes abnormal heartbeats, study finds

NEW YORK — The death of a spouse or child may cause a broken heart — literally.

A bereaved spouse or parent may experience a quickened pulse and other dangerous changes in heart rhythm, according to an Australian study presented Sunday in Chicago at the American Heart Association's Scientific Sessions. The symptoms tend to go away within six months, the researchers said.

Previous studies linked bereavement to an increased risk of heart attacks and sudden cardiac death, according to a literature review published in February in the International Journal of Nursing Studies. The new research, from scientists at the University of Sydney's nursing school, may explain why: Depression and anxiety triggered by the deaths of loved ones cause the heart to beat abnormally.

"While the focus at the time of bereavement is naturally directed toward the deceased person, the health and welfare of bereaved survivors should also be of concern to medical professionals," Thomas Buckley, the lead researcher, said in a statement.

Some mourners may benefit from medical review, said Buckley, who is acting director of postgraduate studies at Sydney Nursing School.

The researchers examined 78 bereaved spouses and parents two weeks after the deaths of loved ones, and again six months later. For comparison, the scientists also examined volunteers who hadn't recently experienced a death.

Compared with the nonbereaved, the patients coping with losses had about twice as many episodes of rapid heartbeats in the first weeks after the deaths. After six months, the difference disappeared.

The average heart rate was about five beats a minute higher in the mourning patients, compared with the other study participants, in the first few weeks following the loss. After six months, the two groups were indistinguishable.

The rates of depression and anxiety were higher in the bereaved than in the control group, and remained elevated six months later, the researchers said.

Drink to your health

NEW YORK — Two or three alcoholic drinks a day may prevent people, especially men, from having heart attacks or strokes after going through heart-bypass surgery, Italian researchers said.

Compared with nondrinkers, men who consumed light to moderate amounts of alcohol were 25 percent less likely after bypass operations to have cardiovascular events or need further procedures, the scientists said Sunday in Chicago at the American Heart Association's meeting. The conclusion was based on data for 1,221 patients tracked for a median time of 3 1/2 years. The figure for women wasn't available.

The drinking may increase HDL cholesterol while lowering inflammation and blood pressure, and help blood vessels function in the wake of surgery, said Umberto Benedetto, a researcher for the study and a doctor in the cardiac-surgery department at the University of Rome La Sapienza.

Depression, anxiety from the death of loves ones causes abnormal heartbeats, study finds 11/14/10 [Last modified: Monday, November 7, 2011 1:21pm]
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