• J Am Board Fam Med · May 2009

    Case Reports

    Fourteen-year follow-up in a teenager with congenital long QT syndrome masquerading as idiopathic generalized epilepsy.

    • Wei-Yuan Chuang, Yao-Tsung Chuang, and Kwo-Chang Ueng.
    • Cardiovascular Study Group, Institute of Medicine, Division of Cardiology, Chung Shan Medical University and Chung Shan Medical University Hospital, Taichung City, 402, Taiwan.
    • J Am Board Fam Med. 2009 May 1;22(3):331-4.

    AbstractLong QT syndrome is a potentially lethal cardiac channelopathy that can be mistaken for epilepsy in young people. We report a 17-year-old man who was initially treated as having both daytime and nocturnal idiopathic epilepsy for 5 years. A series of electrocardiograms showed the time of the convulsive episodes, and genetic testing lead to the final diagnosis. The combined use of a beta-blocker and a pacemaker implant incompletely abolished the torsade de pointes. After an additional near-fatal event, a cardioverter defibrillator was implanted as final bridge therapy. An electrocardiogram with the correct calculation of the QT interval should be performed on all young people with a suggestive history; that is, treat refractory convulsive episodes specifically with nondiagnostic electroencephalograms.

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