title: Association of intramural fat deposition in the interatrial septum with focal atrial tachyarrhythmias originating near the atrioventricular node.
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.
authors: Heart Rhythm Center, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan, s-maeda@ja2.so-net.ne.jp.
authors: Shingo
authors: S
authors: Maeda
authors: Takeshi
authors: T
authors: Sasaki
authors: Yasuhiro
authors: Y
authors: Shirai
authors: Kensuke
authors: K
authors: Ihara
authors: Mihoko
authors: M
authors: Kawabata
authors: Yasuhiro
authors: Y
authors: Yokoyama
authors: Saman
authors: S
authors: Nazarian
authors: Stefan L
authors: SL
authors: Zimmerman
authors: Kenzo
authors: K
authors: Hirao
mesh_terms: D000273:Adipose Tissue / Q000000981:diagnostic imaging*; D000368:Aged; D001281:Atrial Fibrillation / Q000503:physiopathology*; D001283:Atrioventricular Node / Q000000981:diagnostic imaging*; D022062:Electrophysiologic Techniques, Cardiac; D006325:Heart Atria / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D013617:Tachycardia, Supraventricular / Q000503:physiopathology*; D014057:Tomography, X-Ray Computed