title: Successful catheter ablation and documentation of the activation and propagation pattern during a left atrial focal tachycardia in a patient with cor triatriatum sinister.
abstract: We report a case of an atrial tachycardia (AT) originating from the left atrium (LA) associated with cor triatriatum sinister. Electroanatomical mapping of the 2 subdivided chambers of the LA during the AT revealed a centrifugal activation pattern from the posterior wall of the accessory chamber near the left superior pulmonary vein. The propagation map on the CARTO system revealed that the AT wave front spread centrifugally over the "accessory chamber," turned around the edge of the membrane subdividing the LA, and then spread over the "main chamber." A single radiofrequency application successfully abolished the AT.
authors.affiliation: Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan. koichiro@qf6.so-net.ne.jp
authors.forename: Koichiro
authors.initials: K
authors.lastname: Ejima
authors.forename: Morio
authors.initials: M
authors.lastname: Shoda
authors.forename: Tetsuyuki
authors.initials: T
authors.lastname: Manaka
authors.forename: Nobuhisa
authors.initials: N
authors.lastname: Hagiwara
mesh_terms: D017115:Catheter Ablation; D003310:Cor Triatriatum / Q000150:complications*; D018618:Echocardiography, Doppler, Color; D017548:Echocardiography, Transesophageal; D004562:Electrocardiography; D022062:Electrophysiologic Techniques, Cardiac; D006325:Heart Atria / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D013617:Tachycardia, Supraventricular / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome