Across the population the presence of the FIIG20210A mutation (OR: 2.97;95% CI: 1.32-6.69), a history of DVT (OR: 1.04; 95% CI: 1.02-1.06), and oestrogen-containing contraceptive therapy (OR: 1.14; 95% CI: 1.09-1.18) were all associated with stroke of unknown cause after adjustment for other risk factors, This was not the case with PFO.
We comprehensively sought and identified studies of the association of both the factor V Leiden (FV(G1691A) mutation) and the prothrombin mutation (PT(G20210A) mutation) with PFO-related cerebral ischaemia and did meta-analyses to assess the evidence for such a relation.
We comprehensively sought and identified studies of the association of both the factor V Leiden (FV(G1691A) mutation) and the prothrombin mutation (PT(G20210A) mutation) with PFO-related cerebral ischaemia and did meta-analyses to assess the evidence for such a relation.
After adjustment for other vascular risk factors, the combination of either factor V Leiden or prothrombin G20210A and PFO was associated with a 4.7-fold (95% CI=1.4 to 16.1; P=0.008) increased risk of cerebral ischemia in young patients.
After adjustment for other vascular risk factors, the combination of either factor V Leiden or prothrombinG20210A and PFO was associated with a 4.7-fold (95% CI=1.4 to 16.1; P=0.008) increased risk of cerebral ischemia in young patients.
Pregnancy and factor V Leiden carriership are associated with increased risk of venous thromboembolism and the association between PFO and atrial septal aneurysm is a strong risk factor for systemic embolisation.
Pulmonary valve stenosis and atrial septal defect, ostium secundum type, were significantly associated with the identification of a mutation in the PTPN11 gene.
In an initial study of Australian subjects, we observed a weak association between GATA4S377G and PFO/Stroke relative to Caucasian controls in whom ASD and PFO had been excluded (OR = 2.16; p = 0.02).