Postexertional supraventricular tachycardia in children with catecholaminergic polymorphic ventricular tachycardia.
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.
Division of Pediatric Cardiology, British Columbia Children's Hospital and The University of British Columbia, 1F9, 4480 Oak Street, Vancouver, BC, Canada V6H 3V4.
Scott D N
SD
Else
Division of Pediatric Cardiology, British Columbia Children's Hospital and The University of British Columbia, 1F9, 4480 Oak Street, Vancouver, BC, Canada V6H 3V4.
James E
JE
Potts
Division of Pediatric Cardiology, British Columbia Children's Hospital and The University of British Columbia, 1F9, 4480 Oak Street, Vancouver, BC, Canada V6H 3V4.
Shubhayan
S
Sanatani