• Pacing Clin Electrophysiol · Mar 2011

    Case Reports

    Proarrhythmic ECG deterioration caused by myocardial ischemia of the conus branch artery in patients with a Brugada ECG pattern.

    • Michio Ogano, Yu-Ki Iwasaki, Norishige Morita, Jun Tanabe, Kunito Shiiba, Yasushi Miyauchi, Yoshinori Kobayashi, Keiji Tanaka, Takao Katoh, and Kyoichi Mizuno.
    • Department of Internal Medicine, Division of Cardiology, Hepatology, Geriatrics and Integrated Medicine, Nippon Medical School, Tokyo, Japan.
    • Pacing Clin Electrophysiol. 2011 Mar 1;34(3):e26-9.

    AbstractThe Brugada-type electrocardiogram (ECG) is characterized by ST-segment elevation in the right precordial ECG leads and has been reported to have the potential of sudden death. Right ventricular outflow tract supplied from the conus branch of the coronary artery (CB) is considered as the anatomopathologic substrate of Brugada syndrome. We experienced two asymptomatic patients with a saddleback Brugada-type ECG who exhibited a dynamic ECG conversion to a coved type following a ventricular fibrillation/ventricular tachycardia (VT/VF) episode when myocardial ischemia occurred exclusively at the CB. Some types of Brugada syndrome might be caused VT/VF by selective myocardial ischemia at the CB.©2010, The Authors. Journal compilation ©2010 Wiley Periodicals, Inc.

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