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Vagal atrial fibrillation

  • Yung Hsin Yeh
  • , Kristina Lemola
  • , Stanley Nattel*
  • *Corresponding author for this work
  • University of Montreal
  • McGill University

Research output: Contribution to journalReview articlepeer-review

25 Scopus citations

Abstract

The autonomic nerve system plays an important role in atrial fibrillation (AF). Vagal AF refers AF (generally paroxysmal) arising in contexts of enhanced parasympathetic tone. Heterogeneity of refractoriness and action potential abbreviation resulting from spatially variable parasympathetic enhancement of the acetylcholine-dependent K+-current (IKACh) underlie vagal AF. Adrenergic influences may also contribute to the occurrence of vagal AF. Cholinergic stimulation may enhance ectopic firing from pulmonary vein cardiomyocytes, which potentially contribute to the occurrence of vagal AF. On the other hand, underlying heart disease modulates cholinergic regulation of atrial myocytes. Careful history taking in AF patients is important for vagal AF management. Vagal denervation may play a role in the efficacy of ablation procedures, but the results are conflicting. Specific IKACh channel blockers may become the treatment of choice in the future.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalActa Cardiologica Sinica
Volume23
Issue number1
StatePublished - 03 2007

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • Acetylcholine
  • Muscarinic receptor
  • Pulmonary vein
  • Vagal atrial fibrillation
  • Vagal denervation

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