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Sleep apnea may be a cause, rather than just an effect, of heart failure

An interruption in normal breathing patterns during sleep which is often seen in heart failure patients may contribute to heart failure rather than just being a result, according to findings of a Mayo Clinic study.
“We are now finding that central sleep apnea, which has been previously understood as a symptom of heart failure, may contribute to the development of heart failure in people at risk,” said the study’s lead researcher.