Instability of repolarization in LQTS mutation carriers compared to healthy control subjects assessed by vectorcardiography.


BACKGROUND Potassium channel dysfunction in congenital and acquired forms of long QT syndrome types 1 and 2 (LQT1 and LQT2) increases the beat-to-beat variability of the QT interval. OBJECTIVE To study about the little known variability (instability) of other aspects of ventricular repolarization (VR) in humans by using vectorcardiography. METHODS Beat… (More)
DOI: 10.1016/j.hrthm.2013.05.001


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