A Case of Atrial Tachycardia Circulating around a Left Atrial Roof Scar with Diabetes Mellitus and Renal Failure on Hemodialysis

Figure 2

(a) The left atrial (LA) voltage map using a 3D electroanatomical mapping system. The grey area located at the anterior roof of the LA indicates the scar. The black circle indicates the site of entrainment pacing. The dotted line shows the linear ablation line between the LA scar and the ostium of the right upper pulmonary vein. (b) The LA activation map during AT. The arrowhead indicates local activity recorded around the scar. (c) Intracardiac ECG of the AT termination site recoded at the LA roof. ABL 1-2 indicates the distal electrode of the ablation catheter.

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