Comparison of exponential and hyperbolic models of conduction through the atrioventricular node

Liliane Dorveaux, William Heddle, Michael Jones, Andrew Tonkin

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Abstract

Conduction through the atrioventricular node (AVN) is assessed during electrophysiology study by relating the output to the input generated by an atrial extrastimulus. This extrastimulus scans electrical diastole of the heart to enable output to be plotted against input. Using this technique, we compared two mathematical models of the AVN, a rectangular hyperbola and a decaying exponential, respectively. The models were compared in 40 curves from 32 patients with only one AVN transmission pathway. Standard errors of the estimate were usually (25/40 trials) less with the exponential modes, suggesting this the preferred algorithm for further development.

Original languageEnglish
Pages (from-to)227-235
Number of pages9
JournalInternational Journal of Bio-Medical Computing
Volume17
Issue number3-4
DOIs
Publication statusPublished - Nov 1985
Externally publishedYes

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