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  • Title: Can changes in transcardiac impedance appropriately detect ventricular fibrillation?
    Author: Weiss SM, Einstein R, McCulloch R.
    Journal: Pacing Clin Electrophysiol; 1991 Feb; 14(2 Pt 2):352-7. PubMed ID: 1706851.
    Abstract:
    Transcardiac impedance, as measured between two implanted defibrillator patches, has been shown to vary in peak-to-peak magnitude in response to the contractions of the ventricles. These variations in transcardiac impedance are known as delta Z. This study was aimed at determining if there was a significant change in the magnitude of delta Z between that during normal sinus rhythm, that during ventricular fibrillation (VF), and if this change could be used as a detector of the onset of VF. This study was performed acutely on 14 anesthetized dogs.
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