We present a case of an old woman with previously documented heparin-induced thrombocytopenia (HIT),treated with fondaparinux, who presented with thrombocytopenia and venous thrombosis after exposure to a preventive dose of fondaparinux duringorthopaedic surgery.
Any accidental exposure to heparin was avoided. Other causes of thrombocytopenia were excluded andantigenic tests combined with clinical probability made a diagnosis of HIT likely.
Can this be considered a possible case of fondaparinux-related HIT, despite the intense and earlydecrease in platelets, as usually happens in rapid-onset HIT, and the fact that previous exposure to fondaparinux had occurred 5 months previously?
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Issue: Vol. 1 (2014) (view)