Financial Disclosures: None.
The Importance of Bidirectional Block during Pulmonary Vein Isolation
Article first published online: 5 JUN 2012
©2012, The Authors. Journal compilation ©2012 Wiley Periodicals, Inc.
Pacing and Clinical Electrophysiology
Volume 36, Issue 5, pages e143–e145, May 2013
How to Cite
KIM, J., DESAI, S., JADONATH, R. and BELDNER, S. J. (2013), The Importance of Bidirectional Block during Pulmonary Vein Isolation. Pacing and Clinical Electrophysiology, 36: e143–e145. doi: 10.1111/j.1540-8159.2012.03446.x
Conflicts of Interest: None.
- Issue published online: 24 APR 2013
- Article first published online: 5 JUN 2012
- Manuscript Accepted: 7 FEB 2012
- Manuscript Revised: 30 DEC 2011
- Manuscript Received: 22 AUG 2011
- atrial fibrillation;
- electrophysiology – clinical;
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)