Evidence for determinism in ventricular fibrillation.

  title={Evidence for determinism in ventricular fibrillation.},
  author={Witkowski and Kavanagh and Penkoske and Plonsey and Span{\`o} and Ditto and Kaplan},
  journal={Physical review letters},
  volume={75 6},
Using a recently formulated technique for in vivo cardiac transmembrane current estimation, we examined ventricular fibrillation for evidence of deterministic linear and nonlinear structure. Both unstable fixed point analysis and a newly formulated measure of nonlinear determinism indicated that ventricular fibrillation in vivo exhibits deterministic dynamics similar to those previously used in chaos control. 

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Stability analysis of ventricular tachycardia using discrete dynamic models

  • Sandra A. MetzlerP. BaylyS. ReekR. IdekerWarren M. Smith
  • Medicine
    Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)
  • 1997
Preliminary results indicate that this method may be useful in quantifying the stability of cardiac rhythms, and the degree of determinism.



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