A DECREASE IN ANTIPHOSPHOLIPID ANTIBODIES BEFORE A THROMBOTIC EVENT

We are reporting a systemic lupus erythematosus patient with antiphosp holipid syndrome who developed iliofemoral thrombosis. Before the occu rrence of iliofemoral venous thrombosis, antiphospholipid antibodies ( aPL) gradually decreased over a period of 18 weeks but were, within no rmal range during its acute phase. In the course of two years followin g this case of thrombosis, aPL have never returned to the high prethro mbotic values. It is therefore most likely that aPL were involved in t he process of provoking thrombosis rather than being consumed during i ts acute phase.