Atrial tachycardia confined within the left atrial appendage.
Left atrial tachycardias are often seen following catheter ablation of persistent atrial fibrillation (AF). We report here an unusual case where AF was converted to sinus rhythm following catheter ablation, but ongoing atrial tachycardia confined within the left atrial appendage (LAA) was observed. Although the LAA tachycardia was dissociated from the atrium in sinus rhythm, bidirectional conduction between the left atrium and the LAA was, however, demonstrated after tachycardia termination.
Miyazaki
Shinsuke
S
Hôpital Cardiologique du Haut-Lévêque and the Université Victor Segalen Bordeaux II, Bordeaux, France. mshinsuke@k3.dion.ne.jp
Nault
Isabelle
I
Jaïs
Pierre
P
Haïssaguerre
Michel
M
D000368:Aged; D000792:Angiography; D020517:Atrial Appendage / Q000503:physiopathology*; D001281:Atrial Fibrillation / Q000503:physiopathology / Q000601:surgery*; D017115:Catheter Ablation; D022062:Electrophysiologic Techniques, Cardiac; D006801:Humans; D008297:Male; D013617:Tachycardia, Supraventricular / Q000503:physiopathology*; D016896:Treatment Outcome