Efficacy of atrial antitachycardia pacing using the Medtronic AT500 pacemaker in patients with congenital heart disease

Patients with congenital heart disease are vulnerable to atrial tachyarrhythmias, especially after atrial surgeries. We evaluated the efficacy of atrial arrhythmia detection and antitachycardia pacing (ATP) using the Medtronic AT500 pacemaker in 28 patients with congenital heart disease (age 30 ± 18...

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Bibliographic Details
Published in:The American journal of cardiology 2003-10, Vol.92 (7), p.871-876
Main Authors: Stephenson, Elizabeth A., Casavant, David, Tuzi, Joann, Alexander, Mark E., Law, Ian, Serwer, Gerald, Strieper, Margaret, Walsh, Edward P., Berul, Charles I.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Atrial Fibrillation - etiology
Atrial Fibrillation - therapy
Atrial Flutter - etiology
Atrial Flutter - therapy
Biological and medical sciences
Cardiac arrhythmia
Cardiac dysrhythmias
Cardiac Pacing, Artificial - methods
Cardiology. Vascular system
Cardiovascular disease
Child
Female
Follow-Up Studies
Heart
Heart Defects, Congenital - complications
Humans
Male
Medical sciences
Middle Aged
Pacemaker, Artificial
Patients
Tachycardia, Atrioventricular Nodal Reentry - etiology
Tachycardia, Atrioventricular Nodal Reentry - therapy
Tachycardia, Supraventricular - classification
Tachycardia, Supraventricular - etiology
Tachycardia, Supraventricular - therapy
Treatment Outcome
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Summary:Patients with congenital heart disease are vulnerable to atrial tachyarrhythmias, especially after atrial surgeries. We evaluated the efficacy of atrial arrhythmia detection and antitachycardia pacing (ATP) using the Medtronic AT500 pacemaker in 28 patients with congenital heart disease (age 30 ± 18 years). Of 15 patients with atrial arrhythmias, 14 had atrial tachycardia events that were appropriately detected. ATP was enabled for 167 treatable episodes, successfully converting 90 (54%). Rhythms classified as ventricular tachycardia were detected 127 times, yet most were actually atrial or sinus tachycardia with 1:1 atrioventricular conduction. Atrial tachycardias in congenital heart disease are amenable to ATP alogorithms in the AT500 pacemaker.
ISSN:0002-9149
1879-1913
DOI:10.1016/S0002-9149(03)00905-6