Atrial tachycardia masquerading as atrial flutter following ablation of the subeustachian isthmus.

Publication/Presentation Date

5-1-2000

Abstract

We report a case of atrial tachycardia masquerading as atrial flutter in a man who had previously undergone catheter ablation for atrial flutter. The recurrent arrhythmia was electrocardiographically almost identical to the prior atrial flutter; at repeat electrophysiologic study, although bidirectional conduction block was observed in the tricuspid annulus-inferior vena caval isthmus, the atrial arrhythmia was readily initiated. Activation mapping suggested typical atrial flutter, but entrainment techniques demonstrated intra-atrial reentry not involving the ablated isthmus. This case illustrates the need to apply entrainment techniques even in cases of apparent "typical" atrial flutter to confirm that putative ablation targets are necessary for tachycardia perpetuation.

Volume

11

Issue

5

First Page

582

Last Page

586

ISSN

1045-3873

Disciplines

Medicine and Health Sciences

PubMedID

10826939

Department(s)

Department of Medicine

Document Type

Article

Share

COinS