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Successful catheter ablation of atrioventricular nodal reentrant tachycardia associated with criss-cross heart after Fontan surgery using verapamil to prevent haemodynamic collapse

Published online by Cambridge University Press:  27 February 2026

Kota Taniguchi ,
Gaku Izumi Open the ORCID record for Gaku Izumi [Opens in a new window]  and
Hirokuni Yamazawa Open the ORCID record for Hirokuni Yamazawa [Opens in a new window]
Kota Taniguchi
Affiliation:
Pediatrics, Hokkaido University Graduate School of Medicine , Japan
Gaku Izumi*
Affiliation:
Pediatrics, Hokkaido University Graduate School of Medicine , Japan
Hirokuni Yamazawa
Affiliation:
Pediatrics, Hokkaido University Graduate School of Medicine , Japan
*
Corresponding author: Gaku Izumi; Email: gaku-izumi0920@med.hokudai.ac.jp
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Abstract

A 6-year-old male with a concordant criss-cross heart after Fontan surgery was referred for fast-slow atrioventricular nodal reentrant tachycardia. Verapamil was useful in preventing haemodynamic collapse in this case, requiring mapping during tachycardia.

Keywords

Atrioventricular nodal reentrant tachycardiaFontan surgeryhaemodynamic collapseverapamilpersistent left superior caval vein

Information

Type
Case Report
Information
Cardiology in the Young , Volume 36 , Issue 2 , February 2026 , pp. 425 - 427
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Copyright
© The Author(s), 2026. Published by Cambridge University Press

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References

Papagiannis, J, Daniel, JB, Ulrich, K, et al. Atrioventricular nodal reentrant tachycardia in patients with congenital heart disease: outcome after catheter ablation. Circ Arrhythm Electrophysiol 2017; 10: e004869.CrossRefGoogle ScholarPubMed
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Hwang, J, Park, HS, Kim, J, et al. Supraventricular tachyarrhythmias in patients with a persistent left superior vena cava. Europace 2018; 20: 1168–1174.CrossRefGoogle ScholarPubMed