Article
Abnormal repolarization dynamics revealed in exercise test in long QT syndrome mutation carriers with normal resting QT interval.
Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology - 1 Sept 2010
Hekkala Anna-Mari, Viitasalo Matti, Väänänen Heikki, Swan Heikki, Toivonen Lauri
Abstract excerpt
AIMS: The identification of affected family members with long QT syndrome (LQTS) is often difficult due to their normal-or only marginally lengthened-QT interval duration. We examined whether physical exercise test could increase the ability to detect the mutation carrier status in phenotypically normal LQTS family members. METHODS AND RESULTS: Sixty-six subjects were included: 15 were carriers of KCNQ1 (LQT1);...
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