A case of successful ablation of ventricular tachycardia focus in the left ventricular summit through the left atrial appendage: a case report.

BACKGROUND

Although premature ventricular complexes and ventricular tachycardia (VT) from outflow tracts are easy to map and ablate, some foci create the greatest challenges for the electrophysiologist. One such example is the 'Bermuda triangle' of the heart.

CASE SUMMARY: In this article, we describe the rarely used but acceptable approach to the 'Bermudian' focus. We present a case of a 38-year-old male patient with sustained monomorphic VT, who underwent radiofrequency ablation of arrhythmogenic myocardium. After unsuccessful ablation through the posterior right ventricular outflow tract (RVOT), left coronary cusp (LCC), and distal coronary sinus, tachycardia was eliminated from the left atrial appendage (LAA). Complaints such as palpitations and weakness disappeared after the procedure.

DISCUSSION: Radiofrequency ablation of VT might be performed using LAA. This approach is used when the epicardial location of arrhythmia-causing tissue is suspected and ablation through the RVOT, LCC, and great cardiac vein fails.