Congenitally closed tricuspid annulus functions as arrhythmogenic substrate of atrial arrhythmia in patient with tricuspid atresia.
An intraatrial reentrant circuit was identified using an electroanatomical mapping system and evaluation of postpacing intervals in a patient with tricuspid annulus. Intraatrial reentrant tachycardia was successfully eliminated on the basis of the interpretation that the reentry circuit depends on a congenitally closed tricuspid annulus. We report that a congenitally closed tricuspid annulus is one of the anatomical obstacles when we consider atrial tachyarrhythmia.
Sakaguchi
Heima
H
Department of Pediatrics, National Cardiovascular Center, Osaka, Japan. hsakaguc@hsp.ncvc.go.jp
Miyazaki
Aya
A
Hirata
Takuya
T
Satomi
Kazuhiro
K
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D017115:Catheter Ablation; D004594:Electrophysiology; D006325:Heart Atria; D006801:Humans; D008297:Male; D018785:Tricuspid Atresia / Q000150:complications*; D014261:Tricuspid Valve / Q000473:pathology*