Key result
Prior AF is linked to ~69% lower total HRV spectral power, indicating depressed vagal activity.
Population
Patients with a history of atrial fibrillation
Design
Cross-sectional
Authors
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AF history associated with reduced HRV; hypothesis-generating for autonomic assessment, should not yet change practice.
Case-Control (n=60)
No
Absolute Event Rate: 585.7% vs 1873.5%
p-value: p=<0.001
A novel telemetric system and method for heart rate variability assessment using age-dependent parameters was applied for the first time to evaluate autonomic nervous balance in patients with a history of atrial fibrillation.
Gałuszka et al. (2002) conducted a case-control in History of atrial fibrillation (n=60). History of atrial fibrillation vs. Healthy controls was evaluated on Total spectral power (TOT.PWR) in the second supine position (p=<0.001). Patients with a history of atrial fibrillation had significantly lower total spectral power of heart rate variability compared to healthy controls (585.7 vs 1873.5 ms^2, p<0.001), indicating depressed vagal activity.
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