Metod opredeleniia lokalizatsii voditelia ritma v pravom predserdii sobaki.

Translated title of the contribution: A method of determining the location of the pacemaker in the canine right atrium

V. M. Adomonis, F. F. Bukauskas, K. A. Lukoshiavichius, K. S. Mutskus, A. I. Saudargas

Research output: Contribution to journalArticle

Abstract

Theoretical calculations and experiments on hearts of open-chest dogs have demonstrated a possibility of localizing a spontaneous excitation focus by recording 2 intra-atrial delays representing differences in activation moments at 3 sites of the right atrium. Assuming myocardial homogeneity with respect to excitation spread velocity, it has been shown that the pacemaker can be localized by intersection of two hyperbola-like intra-atrial delay isochronisms with recording electrodes at their foci. In natural, i.e. nonhomogeneous myocardium, experiments have been conducted to simulate pacemakers with known co-ordinates by electrical stimulation of various sites within the right atrium. Comparison of experimental and theoretical data showed the present method to be able to localize the pacemaker with an error of +/- 3 mm, provided the pacemaker is between the recording electrodes where the intra-atrial delays do not exceed 60% of their maximum values.

Original languageRussian
Pages (from-to)79-83
Number of pages5
JournalKardiologiya
Volume27
Issue number5
Publication statusPublished - May 1 1987

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ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Adomonis, V. M., Bukauskas, F. F., Lukoshiavichius, K. A., Mutskus, K. S., & Saudargas, A. I. (1987). Metod opredeleniia lokalizatsii voditelia ritma v pravom predserdii sobaki. Kardiologiya, 27(5), 79-83.