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Case Reports in Cardiology
Volume 2012, Article ID 329097, 3 pages
http://dx.doi.org/10.1155/2012/329097
Case Report

Postexertional Supraventricular Tachycardia in Children with Catecholaminergic Polymorphic Ventricular Tachycardia

Division of Pediatric Cardiology, British Columbia Children’s Hospital and The University of British Columbia, 1F9, 4480 Oak Street, Vancouver, BC, Canada V6H 3V4

Received 11 April 2012; Accepted 24 June 2012

Academic Editors: E. Ercan and C. Firschke

Copyright © 2012 Scott D. N. Else et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a severe arrhythmia associated with sudden death in the young. It is caused by defective calcium handling in ventricular myocytes. The association of supraventricular tachycardia (SVT) with CPVT is described in the literature, occurring in the lead-up to ventricular tachycardia during exercise testing. We describe three cases of SVT that were initiated in the recovery period of exercise testing in children with CPVT.