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The Importance of Bidirectional Block during Pulmonary Vein Isolation
Author(s) -
KIM JOONHYUK,
DESAI SHALIN,
JADONATH RAM,
BELDNER STUART J.
Publication year - 2013
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2012.03446.x
Subject(s) - medicine , pulmonary vein , isolation (microbiology) , ablation , atrial fibrillation , cardiology , block (permutation group theory) , bioinformatics , geometry , mathematics , biology
The definition of a successful ablation of atrial fibrillation can vary among electrophysiologists. A commonly described endpoint is bidirectional block of the four pulmonary veins. A case is described in which entrance block into a pulmonary vein was achieved early during pulmonary vein isolation. However, triggers from the pulmonary vein continued to conduct into the atrium, revealing the block was only unidirectional. Further ablation resulted in true electrical isolation and highlights the importance of achieving bidirectional block. (PACE 2013; 36:e143–e145)