Autodecremental Pacing—A Microprocessor Based Modality for the Termination of Paroxysmal Tachycardias

5 patients aged between 27 and 48 years referred for investigation of recurrent paroxysmal tachycardias (concealed ventriculoatrial accessory pathways n=2, possible atrionodal pathways n=2, dual intranodal pathways n=1).

Autodecremental atrial pacing (n=5) and autodecremental ventricular pacing (n=2) controlled by a microprocessor interfaced with a stimulator.

Conventional pacing techniques including single or double atrial and ventricular extrastimuli, atrial or ventricular underdrive, atrial overdrive pacing, and rapid ventricular pacing.

Conversion of tachycardia to sinus rhythm without initiation of other tachyarrhythmias.surrogate