Key result
Exercise testing reveals SVT during recovery in 3 children with CPVT.
Why the study?
The association and timing of supraventricular tachycardia in children with CPVT during exercise testing recovery is not well characterized.
Case Report (n=3)
Highlights the occurrence of SVT during the recovery period of exercise testing in children with CPVT, expanding the known arrhythmic manifestations of the disease.
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.
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Else et al. (2012) conducted a case report in Catecholaminergic polymorphic ventricular tachycardia (CPVT) (n=3). Exercise testing (recovery period) was evaluated on Supraventricular tachycardia (SVT). Three children with catecholaminergic polymorphic ventricular tachycardia developed supraventricular tachycardia during the recovery period of exercise testing.
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