[Possibility of studying the specific stimulation-conduction system of the heart]

The author carried out a survey on a new method for functional diagnostics--recording of the Hiss bundle potentials. The investigation method is described as well as the normal values of electrogram of the Hiss bundle. The clinical significance of the most important indications for the investigation are discussed, namely: 1. Various forms of atrio-ventricular and ventricular disorders of the stimulation-conductivity process. 2. Indistinct rhythm disorders. 3. Diagnostics of the paranodal stimulation conductivity. 4. Pharmacological studies.