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  • Title: Trans-aortic mitral isthmus ablation after surgical patch closure for an atrial septal defect.
    Author: Arai T, Kujiraoka H, Yamaoka K, Takahashi M, Hojo R, Fukamizu S.
    Journal: J Cardiovasc Electrophysiol; 2024 Feb; 35(2):366-369. PubMed ID: 38044489.
    Abstract:
    INTRODUCTION: In patients with prior atrial septal defect (ASD) closure and atrial tachyarrhythmias, transseptal puncture can be challenging. METHODS AND RESULTS: This case report discusses a 65-year-old man who had previously undergone pulmonary vein isolation (PVI) and cavo-tricuspid isthmus ablation for atrial fibrillation before ASD closure, respectively. He developed atrial tachycardia (AT) and underwent catheter ablation. AT was diagnosed as peri-mitral flutter and the mitral isthmus (MI) linear ablation via a trans-aortic approach successfully terminated it. CONCLUSION: This case demonstrates the feasibility and safety of transaortic MI linear ablation in patients with ASD closure devices or anatomical challenges when transseptal puncture is difficult.
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