Cardiology Medical News about sleep, quality-of-life, heart failure

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Sleep and health-related quality of life in heart failure
Congestive Heart Failure, 08/14/09

Mills PJ et al. – Findings support that, in addition to functional status and ongoing fatigue, poorer quality of life in heart failure (HF) is independently related to the severity of sleep-disordered breathing.

Methods

Study to characterize sleep in HF
Determination of associations with quality of life
Assessment of 40 stable HF pts and 34 healthy volunteers in a clinical research unit

Results

HF pts: more central apneas/hr and obstructive apneas/hr, more time in stage 1 sleep, more respiratory awakenings after apneic events
More HF pts depressed and had worse fatigue
In multiple regression analysis, physical functioning quality of life predicted by reduced left ventricular ejection fraction, shorter distance on a 6-min walk test, greater fatigue, and more apneas
Emotional functioning quality of life predicted by greater fatigue

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