Patient-activated antitachycardia pacing to terminate atrial tachycardias with 1:1 atrioventricular conduction in congenital heart disease.
A young girl with complex congenital heart disease and a Fontan procedure presented with frequent episodes of atrial tachycardias with 1:1 atrioventricular conduction. The patient underwent placement of a dual-chamber AT500 pacemaker with epicardial leads but because of the detection algorithm requiring > or = 2:1 AV relation, she received no antitachycardia therapy. Installation of special software AT500 TPARx v2.1 allowed use of patient-activated antitachycardia pacing for 1:1 atrial tachycardias. Since the installation of this application, the patient has successfully pace-terminated her tachycardia multiple times.
D000293:Adolescent; D000465:Algorithms; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D005260:Female; D018729:Fontan Procedure; D006330:Heart Defects, Congenital / Q000150:complications* / Q000601:surgery; D006801:Humans; D012648:Self Care; D013617:Tachycardia, Supraventricular / Q000150:complications / Q000628:therapy*