Atypical advanced interatrial blocks: Definition and electrocardiographic recognition

Antoni Bayés de Luna, Luis Alberto Escobar-Robledo, David Aristizabal, Danilo Weir Restrepo, Guiomar Mendieta, Albert Massó van Roessel, Roberto Elosua, Antoni Bayés-Genís, Manuel Martínez-Sellés, Adrian Baranchuk

Research output: Contribution to journalArticleResearch

36 Citations (Scopus)


© 2018 Elsevier Inc. The diagnosis of advanced interatrial block (A-IAB) is done by surface ECG analysis when the P-wave ≥120 ms with biphasic (±) morphology in leads II, III and aVF. In this brief communication, we advance a new concept involving atypical patterns of A-IAB due to changes about the morphology or duration of the P-wave. It remains to be determined its real prevalence in different clinical scenarios, and whether these atypical ECG patterns should be considered as predictors of atrial fibrillation/stroke.
Original languageEnglish
Pages (from-to)1091-1093
JournalJournal of Electrocardiology
Publication statusPublished - 1 Nov 2018


  • Advanced interatrial block
  • Atrial fibrosis
  • Atypical pattern


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