PMID: 8945025Nov 1, 1996Paper

Transvalvular impedance (TVI) recording under electrical and pharmocological cardiac stimulation

Pacing and Clinical Electrophysiology : PACE
F Di GregorioM G Bongiorni

Abstract

The cardiac electric impedance was recorded between right atrium and ventricle, throughout the cardiac cycle, by means of a tripolar single pass lead for VDD pacing. The transvalvular impedance signal (TVI) is a sharp periodic wave, with high signal-to-noise ratio, that is detected exclusively in the presence of cardiac mechanical activity. The minimum TVI value is attained during the atrial systole, the maximum at the end of ventricular systole. Different parameters of TVI waveform are affected by changes in the inotropic state, and could therefore be proposed as potential signals for new rate responsive algorithms based on the correlation between inotropic and chronotropic regulation. The signal might be used, moreover, for pacing and sensing validation in autoregulating pacemakers and for fibrillation recognition in ICDs.

References

Nov 1, 1992·Pacing and Clinical Electrophysiology : PACE·E AltD Hayes
Dec 1, 1990·Pacing and Clinical Electrophysiology : PACE·M Schaldach
Sep 1, 1991·Pacing and Clinical Electrophysiology : PACE·H J WortelR Van Mechelen
Jul 1, 1987·Pacing and Clinical Electrophysiology : PACE·J C WoodardB S Gow
Nov 1, 1988·Pacing and Clinical Electrophysiology : PACE·R Chirife
Nov 1, 1984·Pacing and Clinical Electrophysiology : PACE·R W SaloT G Wallner
Apr 1, 1983·European Heart Journal·L FananapazirE B Faragher
Aug 1, 1994·Pacing and Clinical Electrophysiology : PACE·G N KayV J Plumb

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Citations

Mar 27, 2010·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Milos TaborskyFranco Di Gregorio
Apr 5, 2011·Cardiology Research and Practice·Eraldo OcchettaPaolo Marino
Mar 1, 2013·Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia·Milos TaborskyJan Vaclavik
Feb 7, 2013·Journal of Cardiovascular Electrophysiology·Sandro BrusichBozidar Ferek-Petric
Dec 8, 2000·Physiological Measurement·W ArthurG C Kaye
Sep 3, 2020·Journal of Cardiovascular Electrophysiology·Richard G TrohmanParikshit S Sharma

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