Resting electrocardiographic differences in ventricular repolarization between children and young adults with congenital heart disease and those with a structurally normal heart are diminished by exercise.
Utkarsh KohliHemal M NayakAngela G RommeHoang H NguyenPublished in: Pacing and clinical electrophysiology : PACE (2021)
While patients with CHD had a longer QRS duration and QTc interval at baseline than those with structurally normal hearts, these differences did not persist or augment with exercise.