This case report highlights the specific electrocardiographic and electrophysiologic features of ventricular extrasystoles originating from the aortomitral continuity, which can be challenging to ablate.
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May aid recognition of aortomitral PVCs; leaves open generalizability to ablation success in larger series.
Left ventricular outflow tract arrhythmias originating from the aortomitral continuity, the left coronary cusp, the superior basal septum, and the epicardial left ventricular summit display common electrocardiographic and electrophysiological features, probably due to the close proximity of those locations. Catheter ablation of these arrhythmias can be challenging. The case of a 68-year-old male with frequent premature ventricular extrasystoles arising from the aortomitral continuity of the basal left ventricle is described. The electrocardiographic and electrophysiologic characteristics of this arrhythmia are discussed.
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Letsas et al. (2011) studied this question.
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