ACLY and Venous thrombosis: One hundred of these 193 patients had APS as defined bySydney clinical as well as laboratory criteria1; and 126 when women with purely obstetric APS (without a history of thrombosis)associated with low-titre aCL and/or aβ2GPI were also included as suggested in anumber of other studies7,9,10,17 although not included in the Sydney laboratory criteria forAPS.1.