…The atrial impulse must pass through the atrioventricular node, which delays the impulse due to its slow conduction, before the impulse may reach the ventricles…

…Tikkanen JT, et al. Intraventricular conduction delay in astandard 12 lead electrocardiogram as a predictor of mortality in the generalpopulation. Circ Arrhythm Electrophysiol 2011;4…