Electrocardiographic, electrophysiologic, and anatomical features of ventricular tachycardia originating from noncoronary cusp

Journal of Electrocardiology, 02/24/2012

Aortic root mapping showed a very early fractionated ventricular signal with large atrial potential and no His potential in the noncoronary cusp region. Radiofrequency energy application in this region resulted in tachycardia termination within 5 to 10 seconds. During a 3– to 6–month follow–up period, the patients remained asymptomatic, and the electrocardiogram showed no ventricular arrhythmias.

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