Dynamic differences between ventricular fibrillation types induced in human patients by different types of stimulation

A. Casaleggio, B. Gramatikov, N. V. Thakor

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper reports the results of a study on the differences observed in Ventricular Fibrillation (VF) induced in human patients by means of T-shock (TS) and 50 Hz stimulation during implantable cardioverter defibrillator (ICD) placement. The objective of the study was to find out which one of the two types of stimulation induces VF closer to spontaneously occurring VF episodes. The dynamical arrhythmia characterization is done by analyzing the phase portrait and estimating the correlation dimension from the VF tracings. Our preliminary results indicate that T-shock stimulation may induce VF condition whose dynamic is more similar to the one observed with spontaneous VF. An important aspect of the investigation is that the dependence of VF properties on the induction method may give an insight into the dynamic underlying VF initiation and thus may be helpful for the study of sudden cardiac death.

Original languageEnglish (US)
Pages (from-to)89-92
Number of pages4
JournalComputers in cardiology
StatePublished - Dec 1 1997
Externally publishedYes
EventProceedings of the 1997 24th Annual Meeting on Computers in Cardiology - Lund, Sweden
Duration: Sep 7 1997Sep 10 1997

ASJC Scopus subject areas

  • Computer Science Applications
  • Cardiology and Cardiovascular Medicine

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