December 8, 2025Blood

Clinical outcomes associated with serological subsets of heparin-induced thrombocytopenia

View Full Paper

Ask AI

Bookmark

Authors

Discussion

Retrospective cohort finds heparin-induced thrombocytopenia worsens thrombosis in patients with distinct platelet activation patterns.

To assess the clinical outcomes associated with serological subsets of heparin-induced thrombocytopenia (HIT).
Retrospective cohort study at McMaster University
Included patients with positive anti-PF4/heparin enzyme immunoassay and serotonin release assay (SRA) results
Analyzed baseline demographics, previous thrombosis, and lab values
Conducted univariate analyses and logistic regression to compare clinical outcomes between subsets
100 out of 194 patients (52%) showed heparin-independent platelet activation
Heparin-independent serology had lower nadir platelet counts and higher rates of thrombosis
Higher 4T scores and optical density in heparin-independent patients
Adjusted analysis indicated higher risk of thrombosis in heparin-independent patients (OR=2.04, p=0.036)

Kwok et al. (2025) studied this question.

View Full Paper

Ask AI

Bookmark