Heparin‒induced thrombocytopenia (HIT) difficult to diagnose due to no thrombocytopenia noted in pre‒dialysis blood sample： A case report

Key Points

• HIT diagnosis required careful platelet count monitoring post-dialysis despite pre-dialysis normal values.
• In this case, a 64-year-old woman developed unexpected thrombocytopenia after anticoagulation therapy with heparin.
• Utilization of a direct anticoagulant switch from heparin to nafamostat improved the patient's condition consistently over time.
• This case highlights potential diagnostic difficulties with HIT, particularly in patients undergoing dialysis.