Anti-phospholipid antibody syndrome (aPL) is a condition that promotes the formation of blood clots. In this disorder, a person may have miscarriages, unexplained blood clots in the veins or arteries (resulting in heart attack, a venous blood clot, or stroke), or a decreased platelet count.
This disorder is determined by blood tests. There is no single blood test for this disorder, a variety of different antibody measurements are made to diagnose this condition. Sometimes this disorder is associated with systemic lupus erythematosus (SLE).
People with clinical symptoms of blood clots may be treated with several medications, including heparin (or low molecular weight heparin), warfarin, or aspirin. The duration of therapy may depend on the number of clinical events they have experienced and the efficacy of these medications.