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J Cardiovasc Electrophysiol ; 34(6): 1477-1481, 2023 06.
Article in English | MEDLINE | ID: mdl-37210621

ABSTRACT

INTRODUCTION: Recent reports highlighted the role of epicardial connections in the development of biatrial tachycardia circuits. METHODS: We reported a case of 60-year-old female patient who was admitted with recurrent atrial tachycardia (AT) after endocardial pulmonary vein isolation and anterior mitral line formation. RESULTS: Epicardial activation map demonstrated fragmented continuous potentials at the Bachmann's bundle region with good entrainment response. Epicardial radiofrequency ablation terminated AT with complete block in the anterior mitral line. CONCLUSIONS: This case corroborates the data relevant to the role of interatrial connections-specifically Bachmann's bundle-in biatrial macroreentrant ATs and demonstrates that epicardial mapping is an effective method to identify the entire reentrant circuit.


Subject(s)
Atrial Fibrillation , Catheter Ablation , Tachycardia, Supraventricular , Female , Humans , Middle Aged , Epicardial Mapping , Atrial Fibrillation/surgery , Tachycardia , Tachycardia, Supraventricular/diagnosis , Tachycardia, Supraventricular/surgery , Heart Atria/surgery
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