Why the study?
Can the scale-dependent Lyapunov exponent (SDLE) characterize differences in heart rate variability dynamics among healthy, heart failure, and atrial fibrillation subjects?
Population
Healthy subjects, congestive heart failure subjects, and atrial fibrillation subjects
Design
Other
Authors
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SDLE may differentiate stochastic HRV patterns across groups; leaves open prospective validation before any clinical adoption.
Can the scale-dependent Lyapunov exponent (SDLE) characterize differences in heart rate variability dynamics among healthy, heart failure, and atrial fibrillation subjects?
The scale-dependent Lyapunov exponent (SDLE) reveals that heart rate variability in healthy, heart failure, and atrial fibrillation subjects is primarily stochastic, with distinct stochastic properties for each group.
Hu et al. (2009) studied this question.
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