Depression, bipolar may raise heart disease risk in teens

Major depression and bipolar disorder put teenagers at greater risk for heart disease and should be considered as independent risk factors for the condition. This is according to a scientific statement from the American Heart Association, published in the journal Circulation.

Previous research has associated mood disorders in adults with greater risk for heart problems. In February 2014, for example,Medical News Today reported on a study claiming depression is acausal risk for coronary heart disease among adults.

What is more, studies have indicated that adults with major depression and bipolar disorder are more likely to suffer heart disease at an earlier age.

Lead author of the scientific statement Dr. Benjamin I. Goldstein – a child-adolescent psychiatrist at Sunnybrook Health Sciences Centre and the University of Toronto in Canada – and colleagues systematically assessed published research investigating the risk of heart disease among adolescents with mood disorders.

The team found that teenagers with major depression or bipolar disorder were more likely to have a number of risk factors for heart disease – including hypertension, high cholesterol, obesity, type 2 diabetes and atherosclerosis – compared with teenagers without these mood disorders.

The increased cardiovascular risk factors identified among adolescents with bipolar or major depression were not fully explained by other factors, such as lack of exercise, smoking or drug abuse, according to the statement authors.

While medication for mood disorders is associated with weight gain, hypertension, high cholesterol and increased blood sugar levels, the team notes that the majority of the teenagers included in the studies were not receiving such medication.

Dr. Goldstein and colleagues are unable to explain the biological causes behind their findings, but they point to previous studies that have associated adolescent mood disorders with increased inflammation and other forms of cell damage.

Early action needed to lower heart disease risk in teens with mood disorders

According to the National Institute of Mental Health, in 2012, around 2.2 million American teenagers aged 12-17 had a major depressive episode in the past year, while a 2012 study estimated that around 2.5% of adolescents aged 13-18 in the US have met the criteria for bipolar disorder in their lifetime.

Based on their findings, Dr. Goldstein and colleagues conclude that major depression and bipolar disorder should be classified as moderate risk factors for heart disease in teenagers. He says:

“Mood disorders are often lifelong conditions, and managing cardiovascular risk early and assertively is tremendously important if we are to be successful in ensuring that the next generation of youth has better cardiovascular outcomes.

These disorders indicate an increased risk of heart disease that requires increased vigilance and action at the earliest possible stage.”

Dr. Goldstein hopes that the scientific statement will prompt adolescents with depression or bipolar, their families and health care providers to take early action to reduce heart disease risk.

In June, MNT reported on a study that found individuals who suffer from panic disorder may be at greater risk of heart attack and heart disease later in life.

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