[Recording of the potential of the bundle of His in patients with disordered atrioventricular conduction].

The potentials of His bundle were recorded in 25, out of 105 patients with intracardial electrophysiological examination, carried out. The standard electrocardiographic devices were used, being reconstructed for the purpose. The patients with AV block, stage I and partial AV block, Wenckebach type manifested blocking (slow down) above His bundle. The patients with AV block, Möbitz type II and the patients with chronic AV block manifested blocking both above and beneath His bundle. With auricle stimulation with alternative frequency, latent pathological disorders of auricle-ventricular conduction could be manifested. The method allows the localization of the level of the block, aiding the solution of prognosis problems, further behaviour and eventually the setting of artificial guide of cardiac activity.