Korean Circ J.  1985 Dec;15(4):561-571. 10.4070/kcj.1985.15.4.561.

Antitachycardia Pacemaker PASAR 4172 for Termination of Paroxysmal Tachycardias

• Choi YS
• Kim SB
• Kim JS
• Kim CJ
• Seo BK
• Kim YJ
• Park YB
• Lee YW

• KMID: 1677308
• DOI: http://doi.org/10.4070/kcj.1985.15.4.561

Abstract

Reentrant tachycardias can often be terminated by discrete pacing stimuli that penetrate the reentrant circuit. Antitachycardia pacemaker PASAR 4172 (Programmable Automatic Scanning Arrhythmia Reversion, Model 4172, Telectronics) is designed to detect tachycardia automatically and subsequently to deliver programmed one or two extrastimuli to revert to sinus rhythm. We experienced two patients, one paroxysmal supraventricular tachycardia and one paroxysmal ventricular tachycardia, who had had frequent and often prolonged episodes of tachycardia that responded poorly to pharmacologic antiarrhythmic therapy. Each patient underwent a detailed preimplantation clinical electrophysiological study in order to determine the number of stimuli required for termination of tachycardia, the most satisfactory site for electrode placement, and the tachycardia termination zone. During the follow-up period of 7 to 11 months after implantation of PASAR 4172, no patient complained of an episode of sustained tachycardia although they experienced symptoms of an impending attack. We conclude that antitachycardia pacemaker PASAR 4172 is a safe, effective, and well tolerated method for the therapy of drug resistant paroxysmal supraventricular tachycardia and paroxysmal ventricular tachycardia.

MeSH Terms

Arrhythmias, Cardiac
Electrodes
Follow-Up Studies
Humans
Tachycardia
Tachycardia, Paroxysmal*
Tachycardia, Supraventricular
Tachycardia, Ventricular