Antiphospholipid syndrome Flashcards
what is antiphospholipid syndrome
Autoimmune disorder that manifests clinically as recurrent venous or arterial thrombosis and/or fetal loss
which gender is it more common in
females
what is shwon i blood tests for anti phospholipid syndrome
thrombocytopenia
prolongation of aptt
lupus anticoagulatn , anti cardiolipin antibodies and anti beta 2 glycoprotein may be positive
management of anti phospholipid syndrome
anticoagulation for those with an episode of thrombosis - acute LMWH then warfarin or aspirin prophylaxis
LMWH and aspirin used during pregnancy for patients with recurrent pregnancy loss
do patients who have positive antibodies but have never had an episode of thrombosis require anti coag
no
wha medication is used during pregnancy for patients who experience recurrent loss
LMWH and aspirin
venous clinical presentation
- DVT/PE
- Recurrent pulmonary emboli or thrombosis can lead to life-threatening pulmonary hypertension
Livedo reticularis - blood clots in capillaries lead to swelling of venules, resulting in a purplish, net-like discoloration of the skin
arterial clincial presentation
- May contribute to an increased frequency of stroke or MI, especially in younger individuals
Strokes may develop secondary to in situ thrombosis or embolization that originates from the valvular lesions of Libman-Sacks (sterile) endocarditis, which may be seen in patients with APS
pathophysiology of anti phospholiid syndrome
antibodies target phospholipid-binding proteins, particularly beta-2 glycoprotein I (β2GPI), which is a protein that normally helps to stabilize cell membranes and regulate blood clotting