The researchers identified 1,412 cases of heart failure in the study population during an average follow-up of 11.3 years, either identified at hospitals or by the National Cause of Death Registry. There was a dose-dependent association between the number of insomnia symptoms and risk of heart failure, with the risk for heart disease increasing for people who had one, two, and three insomnia symptoms, compared with people who reported no insomnia symptoms. Until direct causation between insomnia and heart failure can be proved, the researchers urge physicians to evaluate patients for insomnia, noting that "evaluation of insomnia symptoms might have consequences for cardiovascular prevention."
For information about diagnosing and treating insomnia, see American Psychiatric Publishing's Clinical Manual for Evaluation and Treatment of Sleep Disorders. For more information on sleep and its relationship to other health problems see Psychiatric News here and here.
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