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Related Experiment Videos

Ventricular tachycardia in children

A P Rocchini, P O Chun, M Dick

    The American Journal of Cardiology
    |May 1, 1981
    PubMed
    Summary

    Recurrent ventricular tachycardia in children is more common with structural heart disease and higher rates. Exercise testing and heart disease presence help predict prognosis for pediatric ventricular tachycardia.

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    Area of Science:

    • Pediatric Cardiology
    • Electrophysiology
    • Arrhythmology

    Background:

    • Recurrent ventricular tachycardia (VT) in children presents diagnostic and prognostic challenges.
    • Understanding factors influencing VT in pediatric populations is crucial for effective management.

    Purpose of the Study:

    • To identify predictors of prognosis in pediatric patients with recurrent ventricular tachycardia.
    • To evaluate the role of structural heart disease, VT rate, and exercise testing in outcomes.

    Main Methods:

    • Retrospective analysis of 38 pediatric patients (aged 1-20 years) with recurrent VT.
    • Stratification into groups based on presence or absence of structural heart disease.
    • Assessment of symptoms, VT rates, and response to graded treadmill exercise testing and antiarrhythmic therapy.

    Main Results:

    • Symptomatic VT was significantly more frequent in patients with known structural heart disease (17/21) compared to those without (6/17).
    • Symptomatic VT was associated with rates >150 beats/min, while asymptomatic VT typically had rates <150 beats/min.
    • Exercise testing exacerbated VT in symptomatic patients but suppressed it in asymptomatic ones; antiarrhythmic therapy was more effective in symptomatic cases.

    Conclusions:

    • Underlying structural heart disease, VT rate, and exercise test responses are key predictors for pediatric VT prognosis.
    • These factors aid in stratifying risk and guiding therapeutic strategies in children with ventricular tachycardia.

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