(FIT)-Module 4 Workshop 7: Electrocradiogrpahic and Electrophysiological Correlations, Atrial Fibrillation, Clinical Scenarios and Syndromes-Gerstenfeld Case 2 Question

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Video Summary

A 64-year-old man is undergoing an ablation for recurrent tachycardia after atrial fibrillation ablation. Intracardiac catheters are positioned in the superior vena cava and coronary sinus, and overdrive pacing is performed. A right atrial activation map is analyzed during tachycardia. The question is which ablation lesion is likely to terminate the tachycardia: A) linear ablation from the IVC to the tricuspid annulus, B) from the left inferior pulmonary vein to the mitral annulus, C) from the right superior to left superior pulmonary vein, D) a focal lesion on the right atrial septum, or E) inside the distal coronary sinus.

Keywords

atrial fibrillation

tachycardia ablation

right atrial activation map

intracardiac catheters

overdrive pacing