Does atrial conduction velocity differ between patients with paroxysmal atrial fibrillation and those with AVNRT?
Conduction delay in both atria, particularly the left atrium, is associated with paroxysmal atrial fibrillation, suggesting its involvement in the genesis or perpetuation of the arrhythmia.
Compared to patients with AVNRT, patients with AF are associated with conduction delay in both atria with the delay being more marked in the LA than in the RA, which suggests the involvement of conduction disturbances in the genesis and/or perpetuation of AF.
Zheng et al. (Wed,) studied this question.