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Mahaim fiber connecting the right atrium to the left ventricle: a case report.

ABSTRACT: In the majority of cases presenting with the Mahaim fiber (MF), the MF connects the lateral right atrium (RA) to the right bundle branch or the right ventricle. We present the case of a 33-year-old man with antidromic atrioventricular reentrant tachycardia using MF connected to the septal RA and left ventricle (LV). Although the Mahaim potential was recorded at the septal RA, ablation at this site could not eliminate the MF and had a potential risk of injury to the atrioventricular node. Additional application at the posterior septal LV achieved successful MF ablation.

SUBMITTER: Yakabe D

PROVIDER: S-EPMC7411216 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Mahaim fiber connecting the right atrium to the left ventricle: a case report.

Yakabe Daisuke D Fukuyama Yusuke Y Araki Masahiro M Aso Akemi A Nakamura Toshihiro T

Journal of arrhythmia 20200601 4

In the majority of cases presenting with the Mahaim fiber (MF), the MF connects the lateral right atrium (RA) to the right bundle branch or the right ventricle. We present the case of a 33-year-old man with antidromic atrioventricular reentrant tachycardia using MF connected to the septal RA and left ventricle (LV). Although the Mahaim potential was recorded at the septal RA, ablation at this site could not eliminate the MF and had a potential risk of injury to the atrioventricular node. Additio ...[more]

PMID: 32782653

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