Abstract
Antiphospholipid antibody syndrome (APS) is a coagulation disorder associated with antiphospholipid antibodies. Headache is common in APS patients and often un-responsive to analgesics. We report a case of refractory headache in a patient with APS, who was improved by high-intensity warfarin treatment. The mechanisms of the headache in patients with APS were presumed to be hyper-coagulability of microcirculation and thrombotic occlusion of the capillaries, which were associated with antiphospholipid antibodies. Therefore, high-intensity warfarin could be considered as one of the treatments for refractory headache in patients with APS.
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