Key result
Children of patients with panic disorder had significantly lower largest Lyapunov exponent of heart rate time series in supine posture compared to children of healthy controls.
Why the study?
Do children of parents with panic disorder have altered heart rate variability compared to children of healthy controls?
Population
Children of parents with panic disorder and children of healthy controls
Comparison
Exposure: Having parents with panic disorder vs Children of healthy controls
Design
Cross-sectional
Authors
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Supports heritable vagal impairment in panic disorder families; hypothesis-generating and requires longitudinal validation before any clinical use.
Observational
Do children of parents with panic disorder have altered heart rate variability compared to children of healthy controls?
Children of parents with panic disorder exhibit decreased nonlinear heart rate variability (lower LLE), suggesting a heritable decrease in cardiac vagal function that may relate to future arrhythmia risk.
Srinivasan et al. (2002) conducted an observational in Children of parents with panic disorder. Parental panic disorder vs. Children of healthy controls was evaluated on Heart rate variability measures (spectral and largest Lyapunov exponent). Children of patients with panic disorder had significantly lower largest Lyapunov exponent of heart rate time series in supine posture compared to children of healthy controls.
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