[Junctional bradycardia and junctional non-paroxysmal tachycardia. A study with atrial and His electrogram and influence of neurovegetative system (author's transl)].

Two cases of unusual A-V nodal rythms, very slow junctional bradycardia and junctional non paroxysmal tachycardia, are described. The Authors emphasize the study of the His bundle electrograms, the atrial electrograms and the time of the intrinsecoid deflection for correct diagnosis of these dysrrhythmias. From the results of the clinical and electrofisiological study and neurovegetative responses some conclusions about the mechanism and clinical significance of these arrhythmias are drawn.