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Nonlinear dynamics in ventricular fibrillation.

H M Hastings·S J Evans·W Quan·M L Chong·O Nwasokwa
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Abstract

Electrogram recordings of ventricular fibrillation appear complex and possibly chaotic. However, sequences of beat-to-beat intervals obtained from these recordings are generally short, making it difficult to explicitly demonstrate nonlinear dynamics. Motivated by the work of Sugihara on atmospheric dynamics and the Durbin-Watson test for nonlinearity, we introduce a new statistical test that recovers significant dynamical patterns from smoothed lag plots. This test is used to show highly significant nonlinear dynamics in a stable canine model of ventricular fibrillation.

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AlgorithmsAnimalsDogsElectric StimulationElectrocardiographyHeartModels, CardiovascularRegression AnalysisTime FactorsVentricular FibrillationComparative StudyJournal ArticleResearch Support, Non-U.S. Gov't

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H M Hastings, S J Evans, W Quan, M L Chong, O Nwasokwa. 1996-09-17. Nonlinear dynamics in ventricular fibrillation.. https://doi.org/10.1073/pnas.93.19.10495

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