[Electrophysiologic study of fenoxedil chlorhydrate].

Electrophysiologic studies were carried out on 10 patients before and during therapy by Fenoxedil Chlorhydrate a new anti-arrhythmic drug, to determine the effects on cardiac conduction. Fenoxedil Chlorhydrate produces a constant alteration of intra-nodal conduction. Modification of sinus function are less evident. Auricular and ventricular refractory periods are increased in the majority of cases. These results give a better understanding of mecanism of this drug, and helps in its prescription in clinical practice.