Predictors of refractory tachycardia in infants with supraventricular tachycardia

Reentrant supraventricular tachycardia (SVT) is the most common arrhythmia in infants. There are few predictors as to which patients will have recurrent or refractory SVT. We retrospectively reviewed records of all infants with SVT evaluated at The Hospital for Sick Children, Toronto, between Januar...

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Bibliographic Details
Published in:Pediatric cardiology 2002-09, Vol.23 (5), p.508-512
Main Authors: Sanatani, S, Hamilton, R M, Gross, G J
Format: Article
Language:English
Subjects:
Electrocardiography
Female
Humans
Infant
Male
Prognosis
Recurrence
Retrospective Studies
Tachycardia, Supraventricular - diagnosis
Tachycardia, Supraventricular - physiopathology
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Summary:Reentrant supraventricular tachycardia (SVT) is the most common arrhythmia in infants. There are few predictors as to which patients will have recurrent or refractory SVT. We retrospectively reviewed records of all infants with SVT evaluated at The Hospital for Sick Children, Toronto, between January 1, 1995, and December 31, 1999. Patients with reentrant SVT documented in infancy and structurally normal hearts were included. Patients were placed in two groups: the "simple" group consisted of patients with SVT completely controlled by not more than one medication, and the "complex" group consisted of patients with recurrent episodes requiring at least one medication change for control. Forty-two cases were analyzed-23 in the simple group and 19 in the complex group. One patient in each group died. Age at presentation was 50.4 +/- 13.2 days for the simple group versus 10.2 +/- 2.5 days for the complex group (p
ISSN:0172-0643
1432-1971
DOI:10.1007/s00246-002-1514-4