Cryoablation and angiographic evidence of a concealed right atrial appendage to right ventricle accessory pathway in an infant.

Abstract

We report a case of successful cryoablation of a concealed accessory pathway from the right atrial appendage to the right ventricle in an infant. A 4-month-old female who had previously undergone successful ablation of a left-sided accessory pathway was taken to the electrophysiology lab due to recurrent supraventricular tachycardia. While in this second supraventricular tachycardia, we found earliest atrial activation in the distal right atrial appendage. Angiography confirmed a connection between right atrial appendage and the right ventricle. Cryoablation at this location promptly terminated the supraventricular tachycardia. Following ablation, there were no further inducible arrhythmias and ventriculo-atrial dissociation was appreciated.

• Authors: Peter N Dean, Alison Skeete, Jeffrey P Moak, Charles I Berul
• Journal: Congenital heart disease (Congenit Heart Dis) 2013 Nov-Dec Vol. 8 Issue 6 Pg. E183-7 ISSN: 1747-0803 [Electronic] United States
• PMID: 23350863 (Publication Type: Case Reports, Journal Article, Video-Audio Media)
• Copyright: © 2013 Wiley Periodicals, Inc.

Topics

• Accessory Atrioventricular Bundle (diagnosis, physiopathology, surgery)
• Angiography
• Atrial Appendage (diagnostic imaging, physiopathology, surgery)
• Cryosurgery
• Electrocardiography
• Electrophysiologic Techniques, Cardiac
• Female
• Heart Ventricles (diagnostic imaging, physiopathology, surgery)
• Humans
• Infant
• Predictive Value of Tests
• Recurrence
• Tachycardia, Supraventricular (diagnosis, physiopathology, surgery)
• Treatment Outcome