Ablation of Nonpulmonary Vein Triggers

Young Hoon Kim, Doni Friadi, Suk Kyu Oh, Yun Gi Kim, Kwang No Lee, Hee Soon Park, Jaemin Shim, Jong Il Choi

Research output: Chapter in Book/Report/Conference proceedingChapter


Nonpulmonary vein (non-PV) “triggers” can be identified in 10% to 33% of unselected patients with atrial fibrillation (AF). Compared with paroxysmal AF, the incidence of non-PV foci is higher in patients with persistent AF. Ablation of non-PV triggers is also important for patients with persistent AF and for those patients who undergo repeat ablation procedures in whom all PVs are found to be isolated. Accurate mapping/localization of non-PV triggers is a prime step and can be achieved with a systematic approach based on the analysis of the P wave morphology, intraatrial activation patterns at multipolar catheters in the standardized position of both atria, and the earliest activation site with direct recording. Ablation should be targeted at a specific site of origin or isolation of certain non-PV structures including superior vena cava, coronary sinus, posterior wall of the left atrium, and left atrial appendage.

Original languageEnglish
Title of host publicationCatheter Ablation of Cardiac Arrhythmias
ISBN (Electronic)9780323529921
Publication statusPublished - 2019 Jan 1

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Inc. All rights reserved.


  • Atrial fibrillation
  • Catheter ablation
  • Electrode mapping
  • Nonpulmonary vein trigger
  • Superior vena cava

ASJC Scopus subject areas

  • General Medicine


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