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Transient Inferior Lead ST Elevation During Radiofrequency Ablation of Atrial Fibrillation

Radiofrequency ablation (RFA) is a commonly performed procedure for symptomatic atrial fibrillation (AF). Herein, we describe a case of transient ST elevation during the isolation of right-sided pulmonary veins. The patient was hemodynamically stable and due to the transient nature of ST-elevation, the procedure was completed successfully. Subsequently, the cardiac catheterization was performed which did not reveal any significant obstructive coronary lesion or a thrombus. In this report, we attempt to explain possible mechanisms for ST-elevation during RFA of AF.

Credits: Michael P. Soos D.O, Mohan C. Madala M.D, Khalil Kanjwal M.D. FACC, FHRS