Key result
First-time exposure to low molecular weight heparin in incident hemodialysis patients resulted in 5 cases of heparin-induced thrombocytopenia over a 30-year period at a single center.
Why the study?
LMWH is a common anticoagulant in hemodialysis but can cause heparin-induced thrombocytopenia in rare cases.
Does low molecular weight heparin cause heparin-induced thrombocytopenia in newly admitted hemodialysis patients?
Case Report (n=5)
No
Does low molecular weight heparin cause heparin-induced thrombocytopenia in newly admitted hemodialysis patients?
Although uncommon, low molecular weight heparin can induce heparin-induced thrombocytopenia in hemodialysis patients, particularly during first-time exposure.
HIT may occur on first LMWH exposure in incident hemodialysis patients; leaves open whether routine monitoring improves safety in this group.
Low molecular weight heparin (LMWH), a common anticoagulant in hemodialysis, can cause the dangerous condition of heparin-induced thrombocytopenia (HIT) in rare cases. The present study reviews five cases of HIT diagnosed in our center, which treats more than 400 maintenance hemodialysis patients annually over a 30-year period. All five cases occurred in incident patients who were being exposed to LMWH for the first time. Treatment involved stopping LMWH and using alternative anticoagulants. Both the 4Ts score and antibody tests were used to confirm the diagnosis of HIT. Following diagnosis, close monitoring was performed for 10-15 days in typical cases or 30 days in severe cases until blood platelet levels recovered to near normal values. Our results suggest that while uncommon, HIT associated with use of LMWH can occur in hemodialysis patients, especially when patients are being exposed to this anticoagulant for the first time.
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Ren et al. (2025) conducted a case report in Heparin-induced thrombocytopenia (HIT) in hemodialysis (n=5). Low molecular weight heparin (LMWH) was evaluated on Heparin-induced thrombocytopenia (HIT). First-time exposure to low molecular weight heparin in incident hemodialysis patients resulted in 5 cases of heparin-induced thrombocytopenia over a 30-year period at a single center.
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