[Analysis of the foci of ectopic stimuli based on body surface mapping of cardiac potentials during sinus rhythm].

This paper submits results of cardiac potentials mapping recorded from the body surface in a 87-electrodes Fukuda-Denshi system in 10 patients exhibiting documented ventricular cardiac rhythm disturbances. Isopotential and isointegral maps of depolarisation periods of the ventricles were analysed for sinus cycle and additional ventricular activations. The results were then compared to those of a 15-persons reference group of people not displaying any cardiac rhythm disturbances. Occurrence was pointed out of aberration at different cardiac activation time, manifested as additional potential extremes during QRS as well ventricular repolarization. The additional extremes during ventricular repolarization are of a persistent potential character, probably resulting in disturbed activation.