© 2004 by European Society of Cardiology
CASE REPORT
Catheter ablation of atrial tachycardia due to recipient-to-donor transatrial conduction after orthotopic heart transplantation*
Department of Cardiology and Angiology, Hospital of the University of Münster and Institute for Arteriosclerosis Research at the University of Münster Germany
Atrial arrhythmias occur frequently after orthotopic heart transplantation. In some cases, they may depend on atrio-atrial conduction across the surgical suture line. We report an unusual case of a heart transplant recipient who had recipient atypical atrial flutter with 2:1 transatrial conduction and a resulting tachycardia in the donor atrium. Electroanatomical mapping identified the site of transatrial conduction and guided successful catheter ablation.
Key Words: orthotopic heart transplant, atrial tachyarrhythmias, radiofrequency ablation, electroanatomical mapping
*Corresponding author. Universitätsklinikum Münster, Medizinische Klinik und Poliklinik C, Kardiologie/Angiologie, D-48129 Münster, Germany. Tel.: +49-251-8347645; fax: +49-251-8347864. E-mail address: ribbing{at}uni-muenster.de (M. Ribbing).