Possible role for cryoballoon ablation of right atrial appendage tachycardia when conventional ablation fails
Texas Heart Institute Journal, cilt.42, sa.3, ss.289-292, 2015 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 42 Sayı: 3
- Basım Tarihi: 2015
- Doi Numarası: 10.14503/thij-14-4238
- Dergi Adı: Texas Heart Institute Journal
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.289-292
- Anahtar Kelimeler: Atrial appendage/physiopathology, catheter ablation, cryosurgery/methods, electrophysiologic techniques, cardiac, tachycardia, ectopic atrial/complications/physiopathology, treatment outcome, ventricular dysfunction, left/etiology
- Sağlık Bilimleri Üniversitesi Adresli: Hayır
Özet
Focal atrial tachycardia arising from the right atrial appendage usually responds well to radiofrequency ablation; however, successful ablation in this anatomic region can be challenging. Surgical excision of the right atrial appendage has sometimes been necessary to eliminate the tachycardia and prevent or reverse the resultant cardiomyopathy. We report the case of a 48-year-old man who had right atrial appendage tachycardia resistant to multiple attempts at ablation with use of conventional radiofrequency energy guided by means of a 3-dimensional mapping system. The condition led to cardiomyopathy in 3 months. The arrhythmia was successfully ablated with use of a 28-mm cryoballoon catheter that had originally been developed for catheter ablation of paroxysmal atrial fibrillation. To our knowledge, this is the first report of cryoballoon ablation without isolation of the right atrial appendage. It might also be an alternative to epicardial ablation or surgery when refractory atrial tachycardia originates from the right atrial appendage.