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Accessory-pathway-mediated dilated cardiomyopathy in an infant

Published online by Cambridge University Press:  26 August 2025

Claire Bertail-Galoin Open the ORCID record for Claire Bertail-Galoin [Opens in a new window] ,
Nabil Jbilou  and
Victor Waldmann
Claire Bertail-Galoin*
Affiliation:
Felix Guyon Hospital Center, CHU La Réunion, Competence Center for Complex Congenital Heart Disease – M3C, Saint-Denis, France
Nabil Jbilou
Affiliation:
Felix Guyon Hospital Center, CHU La Réunion, Competence Center for Complex Congenital Heart Disease – M3C, Saint-Denis, France
Victor Waldmann
Affiliation:
Coordinating Center for Complex Congenital Heart Disease – M3C, Necker Enfants Malades Hospital, Paris, France
*
Corresponding author: Claire Bertail-Galoin; Email: claire.bertail@chu-reunion.fr
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Abstract

We report the case of a 10-month-old infant presenting with dilated cardiomyopathy caused by septal dyssynchrony linked to a right septal accessory pathway-mediated pre-excitation. No atrioventricular reciprocating tachycardia was reported, but this pre-excitation resulted in left septal dyssynchrony. After the introduction of flecainide therapy, the antegrade pre-excitation disappeared on ECG, leading to normalisation of left ventricular function.

Keywords

cardiomyopathyleft bundle branch blockpre-excitationaccessory pathway

Information

Type
Case Report
Information
Cardiology in the Young , Volume 35 , Issue 8 , August 2025 , pp. 1723 - 1726
Copyright
© The Author(s), 2025. Published by Cambridge University Press

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References

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