American Society of Hirudotherapy

Direct thrombin inhibitors for management of heparin-induced thrombocytopenia in patients receiving renal replacement therapy: comparison of clinical outcomes.

Research article published in American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists (2012)

Last Updated: June 18, 2026Reviewed by: ASH Editorial Board
Research article — evidence reviewArticle reference
Evidence: Observational studyClinical TrialsDrug DevelopmentAbel et al. · American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists, 2012

Abstract

PURPOSE: The clinical outcomes of patients receiving renal replacement therapy (RRT) and treated with direct thrombin inhibitors (DTIs) for the management of heparin-induced thrombocytopenia (HIT) were compared. METHODS: A retrospective evaluation of clinical outcomes of patients receiving RRT with a presumed diagnosis of HIT treated with lepirudin, argatroban, or bivalirudin was conducted. Inpatients at the University of Pittsburgh Medical Center from January 1, 1995, through March 1, 2008, were included if they were receiving either continuous or intermittent RRT and argatroban, bivalirudin, or lepirudin; were exposed to heparin within the preceding 100 days (including a heparin-treated pulmonary artery catheter) or had a documented heparin allergy; and had at least one of following: (1) an absolute platelet count of <150,000 cells/μL, (2) a decline in platelets of >50% from baseline before exposure to heparin, or (3) a documented diagnosis of thrombocytopenia. The primary outcome assessed was a triple composite endpoint of thrombosis, hemorrhage, and inhospital mortality. A secondary assessment compared the pharmacodynamic relationship between activated partial thromboplastin time and the triple composite. RESULTS: For the primary endpoint, there was no statistically significant difference observed among DTIs. In patients receiving RRT, a lack of a previous heparin allergy, the degree of International Normalized Ratio elevation, and lower serum albumin were significantly correlated with increased morbidity and the occurrence of the composite endpoint. CONCLUSION: No differences in adverse events or other clinical outcomes were observed in this retrospective evaluation of DTI use in patients receiving RRT with presumed HIT.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

Publication typeComparative StudyJournal ArticleResearch Support, Non-U.S. Gov't
Indexed MeSH termsAdultAgedAnticoagulantsAntithrombinsArginineFemaleHeparinHirudinsHumansInternational Normalized RatioMaleMiddle Aged

Summary

The clinical outcomes of patients receiving renal replacement therapy (RRT) and treated with direct thrombin inhibitors (DTIs) for the management of heparin-induced thrombocytopenia (HIT) were compared. A retrospective evaluation of clinical outcomes of patients receiving RRT with a presumed...

Why This Matters for Hirudotherapy

This retrospective study compared clinical outcomes in patients receiving renal replacement therapy who were treated with direct thrombin inhibitors—lepirudin, argatroban, or bivalirudin—for presumed heparin-induced thrombocytopenia, finding no statistically significant differences among agents for a composite endpoint of thrombosis, hemorrhage, and in-hospital mortality. The study is directly relevant to hirudotherapy because lepirudin is recombinant hirudin derived from Hirudo medicinalis (the medicinal leech), and examining how this leech-secretome-derived anticoagulant performs in renally compromised patients informs both clinical practice and understanding of hirudin-based therapeutics. An important caveat is that this was a single-center retrospective evaluation, which limits generalizability and cannot establish definitive efficacy or safety differences between the agents studied.

Citation

Direct thrombin inhibitors for management of heparin-induced thrombocytopenia in patients receiving renal replacement therapy: comparison of clinical outcomes.

Abel et al. · American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists, 2012

Added to ASH library: May 28, 2026 · Site last updated: June 18, 2026

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