Why the study?
Does time-frequency wavelet analysis of nocturnal HRV predict obstructive sleep apnoea syndrome in patients referred for possible OSAS?
Population
147 consecutive patients aged 53.8+/-11.2 yrs referred for possible obstructive sleep apnoea syndrome (OSAS)
Comparison
Time-frequency domain analysis of nocturnal… vs Apnoea/hypopnoea index >= 10 (reference standard)
Design
Cross-sectional
Authors
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May support wavelet HRV analysis for OSAS screening; leaves open prospective validation before clinical use.
Does time-frequency wavelet analysis of nocturnal HRV predict obstructive sleep apnoea syndrome in patients referred for possible OSAS?
Time-frequency parameters from nocturnal heart rate variability using wavelet transform provide high sensitivity and specificity for diagnosing obstructive sleep apnoea syndrome.
Roche et al. (2003) studied this question.
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