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  • Title: Pause-dependent mitral isthmus conduction block during ablation of the mitral isthmus: What is the mechanism?
    Author: Kamakura T, Chauvel R, Duchateau J, Derval N, Pambrun T.
    Journal: J Cardiovasc Electrophysiol; 2021 Jan; 32(1):162-165. PubMed ID: 33206428.
    Abstract:
    Mitral isthmus (MI) ablation is commonly performed as an adjunct therapy to pulmonary isolation during the treatment for persistent atrial fibrillation. Confirmation of complete MI block is essential because an incomplete MI block may result in iatrogenic atrial tachycardia. However, there are several pitfalls in the diagnosis of an MI line block. We herein report a case of transient pause-dependent MI block during MI ablation.
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