Why the study?
Does cyclic variation in heart rate score (CVHRS) by Holter ECG accurately screen for severe sleep-disordered breathing in patients with heart failure?
Population
102 subjects with heart failure
Comparison
Cyclic variation in heart rate score by Holter ECG vs Overnight portable sleep monitoring
Design
Cross-sectional
Authors
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May support Holter-based SDB screening in HF; leaves open prospective validation before practice change.
Does cyclic variation in heart rate score (CVHRS) by Holter ECG accurately screen for severe sleep-disordered breathing in patients with heart failure?
CVHRS determined by Holter ECG is a useful and efficient screening index for severe sleep-disordered breathing in patients with heart failure.
Shimizu et al. (2014) studied this question.
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