title: Utility of non-contact three-dimensional mapping of the left atrium for ablation of left atrial tachycardia.
abstract: A 78-year-old man with a highly symptomatic left atrial tachycardia, refractory to medical therapy, was referred for radiofrequency catheter ablation. Using a double trans-septal technique, two long sheaths were placed across the interatrial septum into the left atrium. Using a 64-electrode non-contact three-dimensional mapping technique, the left atrium was reconstructed and the focus localized to the right superior pulmonary vein ostium. Radiofrequency energy was applied and eliminated the ectopic focus. In summary, a three-dimensional non-contact mapping catheter can facilitate ectopic left atrial tachycardia ablation.
authors.affiliation: Winthrop University Hospital, 120 Mineola Blvd., Suite 500, Mineola, NY 11501, USA.
authors.forename: Todd J
authors.initials: TJ
authors.lastname: Cohen
authors.forename: George
authors.initials: G
authors.lastname: Juang
authors.forename: Ramesh
authors.initials: R
authors.lastname: Daggubati
mesh_terms: D000368:Aged; D002036:Bundle of His / Q000000981:diagnostic imaging / Q000601:surgery; D017115:Catheter Ablation; D004562:Electrocardiography; D006325:Heart Atria / Q000000981:diagnostic imaging / Q000601:surgery; D006346:Heart Septum / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging; D008297:Male; D011667:Pulmonary Veins / Q000000981:diagnostic imaging / Q000601:surgery; D011859:Radiography; D013612:Tachycardia, Ectopic Atrial / Q000175:diagnosis* / Q000601:surgery*; D014463:Ultrasonography