VWF and atrial fibrillation: The potential association of the VWF-V to LA thrombogenesis in AF was investigated for the first time and the prevalence of the VWF-V in LAT-group and controls was not significantly different (OR: 0.64; 95% CI: 0.19-2.24) and similar to the expected heterozygous allele frequency (9.8% in a cohort of neonates).15 A possible explanation might be found by looking at the underlying pathophysiology of thrombus formation.