title: Intraatrial reentrant circuit in a patient with isomerism of the left atrial appendages and atrioventricular septal defect.
abstract: An intraatrial reentrant circuit was identified using an electroanatomical mapping system and evaluation of postpacing intervals in a patient with isomerism of the left atrial appendages and atrioventricular septal defect. Intraatrial reentrant tachycardia was eliminated on the basis of our interpretation of the reentry circuit being dependent on a new anatomical obstacle consisting of a right-sided atrioventricular annulus and atrial septation patch. We must consider the possibility of arrhythmogenic obstacles changing, as a patient grows, long after congenital heart disease surgery.
authors.affiliation: Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka 565-8565, Japan. hsakaguc@hsp.ncvc.go.jp
authors.forename: Heima
authors.initials: H
authors.lastname: Sakaguchi
authors.forename: Aya
authors.initials: A
authors.lastname: Miyazaki
authors.forename: Wataru
authors.initials: W
authors.lastname: Tamaki
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Satomi
mesh_terms: D000293:Adolescent; D020517:Atrial Appendage / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods*; D022062:Electrophysiologic Techniques, Cardiac; D006329:Heart Conduction System / Q000503:physiopathology / Q000601:surgery; D006343:Heart Septal Defects / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D059446:Heterotaxy Syndrome / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008297:Male; D011859:Radiography; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome