title: Atrio-ventricular block during left atrial flutter ablation.
abstract: We present a case of a patient treated with catheter ablation for atrial fibrillation aiming to pulmonary veins isolation. During ablation, atrial fibrillation organized into a left atrial flutter. Electroanatomic and electrophysiologic mapping revealed the anterior left atrium area between the mitral annulus and left atrium septum as a critical region for flutter ablation. After a few pulses of radiofrequency, complete atrio-ventricular block appeared. Finally, we propose pace mapping of the mitral annulus to detect left dislodgment of the compact atrio-ventricular node.
authors.affiliation: Dipartimento di Cardiologia, Ospedale Civile Mirano, Venice, Italy. franco-zoppo@vodafone.it
authors.forename: Franco
authors.initials: F
authors.lastname: Zoppo
authors.forename: Emanuele
authors.initials: E
authors.lastname: Bertaglia
authors.forename: Glauco
authors.initials: G
authors.lastname: Brandolino
authors.forename: Francesca
authors.initials: F
authors.lastname: Zerbo
authors.forename: Daniele
authors.initials: D
authors.lastname: D'este
authors.forename: Pietro
authors.initials: P
authors.lastname: Pascotto
mesh_terms: D000368:Aged; D001282:Atrial Flutter / Q000503:physiopathology / Q000601:surgery*; D002304:Cardiac Pacing, Artificial; D017115:Catheter Ablation; D004562:Electrocardiography; D006327:Heart Block / Q000209:etiology* / Q000503:physiopathology* / Q000628:therapy; D006801:Humans; D008297:Male