Repolarization abnormalities unmasked with exercise in sudden cardiac death survivors with structurally normal hearts.
Kevin M W LeongFu Siong NgCaroline RoneyChristopher CantwellMatthew J Shun-ShinNicholas W F LintonZachary I WhinnettDavid C LefroyD Wyn DaviesSian E HardingPhang Boon LimDarrel FrancisNicholas S PetersAmanda M VarnavaPrapa KanagaratnamPublished in: Journal of cardiovascular electrophysiology (2017)
Increased dispersion of repolarization is apparent during physiological stress in SCD survivors and is detectable with ECGi but not with standard ECG parameters. The electrophysiological substrate revealed by ECGi could be the basis of alternative risk-stratification techniques.