Complete abolition of the reentrant supraventricular tachycardia zone using a new modality of cardiac pacing with simultaneous atrioventricular stimulation |
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Authors: | Ruey J Sung Januariusz L Styperek Agustin Castellanos |
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Institution: | 1. From the Clinical Electrophysiology Laboratory, Jackson Memorial Hospital, Miami Florida, USA;2. From the Division of Cardiology, Department of Medicine, University of Miami School of Medicine, Miami Florida, USA |
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Abstract: | In an attempt to prevent recurrent reentrant supraventricular tachycardia, an experimentally designed new pacemaker has been developed. The pacemaker, when connected to both atrial and ventricular electrodes, is capable of sensing either an atrial or ventricular signal and, in turn, triggers simultaneous atrioventricular (A-V) stimulation. Efficacy of this pacemaker was tested in four patients with recurrent paroxysmal A-V nodal reentrant tachycardia during electrpphysiologic studies. After connection of the electrodes to the new pacemaker, all atrial or ventricular premature stimuli elicited simultaneous A-V stimulation with resultant impulse collision in the A-V junction. Consequently, the reentrant tachycardia zone was completely abolished in all patients. This study has thus demonstrated the clinical feasibility of simultaneous A-V pacing to abolish the supraventricular tachycardia zone in man. |
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Keywords: | Address for reprints: Ruey J Sung MD Division of Cardiology (D-39) Department of Medicine University of Miami School of Medicine P O Box 016960 Miami Florida 33101 |
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