[Esophageal sound for electrocardioversion and simultaneous electric stimulation of the heart].

In extrathoracic as well as oesophageal electrode technique sometimes in most cases short insignificant asystolias following the electric cardioversion are observed. In individual cases, however, an immediate electrostimulation of the heart may be necessary. An oesophageal sound was developed which may be used for cardioversion as well as for stimulation if necessary. With the help of this sound the effectiveness of the electric atrial and ventricular stimulation and the electrocardioversion was proved.