Repetitive monomorphic ventricular tachycardia of left coronary cusp origin.
Repetitive monomorphic ventricular tachycardia with a morphology of inferior axis and left bundle branch block pattern in patients without structural heart disease commonly originates from the right ventricular outflow tract. We report the case of a 22-year-old man with an incessant, monomorphic ventricular tachycardia with a similar morphology originating from the left coronary cusp, which was confirmed by perfect pace mapping, local ventricular activation preceding the onset of QRS by 25 mse, and eliminated by a single delivery of low-energy (11 W) radiofrequency currents.
Sadanaga
T
T
Department of Cardiology, Tokyo Dental College Ichikawa General Hospital, Ichikawa City, Chiba, Japan.
Saeki
K
K
Yoshimoto
T
T
Funatsu
Y
Y
Miyazaki
T
T
D000328:Adult; D001021:Aortic Valve / Q000601:surgery*; D017115:Catheter Ablation; D015716:Electrocardiography, Ambulatory; D006801:Humans; D008297:Male; D017180:Tachycardia, Ventricular / Q000503:physiopathology / Q000601:surgery*