Summary
Continuous nighttime HRV monitoring shows promise for remote COPD screening, with specific HRV cutoff values achieving 83% sensitivity and 81% specificity for identifying COPD patients.
Methods
Prospective observational study with continuous nighttime monitoring
Key Findings
- 7-night average HF power cutoff of 1316 nU for COPD detection
- Sensitivity 83.6%, specificity 81.0%
- Nighttime monitoring avoids daytime motion artifacts
- Respiratory rate combined with HRV improves accuracy
- Wearable-derived metrics show clinical utility
Limitations
Requires multiple nights of data, not diagnostic alone
What This Means for You
Consistently low nighttime HRV may be a warning sign for respiratory conditions. If you notice persistent low values, especially combined with respiratory symptoms, discuss with your healthcare provider.
Source
Read the original paper in JMIR mHealth and uHealth ↗
Added to HRV Zone: 2025-01-10