Association of intramural fat deposition in the interatrial septum with focal atrial tachyarrhythmias originating near the atrioventricular node

Shingo Maeda, Takeshi Sasaki, Yasuhiro Shirai, Kensuke Ihara, Mihoko Kawabata, Yasuhiro Yokoyama, Saman Nazarian, Stefan L. Zimmerman, Kenzo Hirao

Research output: Contribution to journalArticlepeer-review

Abstract

We describe a case with three focal atrial tachycardias (ATs) and focal atrial fibrillation (AF) originating from the interatrial septum (IAS) near the atrioventricular node (AVN). Contrast-enhanced computed tomography demonstrated the association of fat deposition within the anterior IAS near the AVN with successful ablation sites of these ATs and AF. This is the first report that the intramural fat deposition in the IAS could be associated with the formation of AT and AF re-entry circuits originating near the AVN.

Original languageEnglish (US)
Pages (from-to)143-145
Number of pages3
JournalHeart and Vessels
Volume30
Issue number1
DOIs
StatePublished - Jan 1 2015

Keywords

  • Atrial tachyarrhythmia
  • Atrioventricular node
  • Fat

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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