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.
Hôpital Cardiologique du Haut-Lévêque and the Université Victor Segalen Bordeaux II, Bordeaux, France. mshinsuke@k3.dion.ne.jp
Shinsuke
S
Miyazaki
Isabelle
I
Nault
Pierre
P
Jaïs
Michel
M
Haïssaguerre
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