Association of factor V Leiden with Behçet's disease.

Abstract

Three of 23 patients with BD were positive for factor V Leiden (13%). Among BD patients without thrombosis 0/15 were positive; among those with thrombosis 3 of 8 were positive (37.5%) for factor V. Only one patient with RA was positive for factor V Leiden. CONCLUSION. The presence of factor V Leiden in patients with BD may markedly increase the risk of thrombosis.