Atrio-ventricular block during left atrial flutter ablation.
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.
Zoppo
Franco
F
Dipartimento di Cardiologia, Ospedale Civile Mirano, Venice, Italy. franco-zoppo@vodafone.it
Bertaglia
Emanuele
E
Brandolino
Glauco
G
Zerbo
Francesca
F
D'este
Daniele
D
Pascotto
Pietro
P
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