Argatroban for heparin-induced thrombocytopenia in hepato-renal failure and CVVHD

William E. Dager, Richard H White

Research output: Contribution to journalArticle

36 Scopus citations

Abstract

OBJECTIVE: To report a case of significant hepatic and renal failure with the use of argatroban in a patient with heparin-induced thrombocytopenia (HIT) requiring continuous veno-veno hemodialysis (CVVHD). CASE SUMMARY: A 37-year-old Hispanic man with diabetes mellitus, ethanol abuse, and recent crank use developed a venous thrombosis and possible pulmonary embolism, followed by acute liver and renal failure requiring continuous veno-venous hemofiltration. After several days of heparin therapy, the dialyzer circuit thrombosed and the platelet count decreased to 82 x 103/mm 3. Antibodies for HIT by enzyme-linked immunosorbent assay were positive. Heparin was discontinued, and an argatroban infusion was initiated. After 39 hours on argatroban, the infusion was stopped when minor bleeding was observed with a concurrent activated partial thromboplastin time (aPTT) of 100 seconds. The dialyzer circuit did not clot during the argatroban infusion and did not apparently influence dose-related aPTT measurements. Several days were required for the aPTT to decrease after stopping the argatroban infusion. Fresh frozen plasma had no apparent effect on aPTT values. DISCUSSION: Several different agents are currently available to provide effective anticoagulation in patients who have immune-mediated HIT. Argatroban is hepatically cleared and may be the preferred direct thrombin inhibitor in the presence of significant renal impairment, but conversely has prolonged effects in hepatic failure. Limited data are available regarding use of direct thrombin inhibitors in patients who have severe hepatic impairment with concurrent renal failure requiring CVVHD. Scant data are available regarding the effect of hemodialysis on the elimination of argatroban. CONCLUSIONS: The optimal anticoagulant for use in a patient with HIT and concurrent hepatic and renal failure is unclear. No direct thrombin inhibitor has a proven advantage; therefore, selection may depend on clinical factors. Dosing in these patients requires very careful management.

Original languageEnglish (US)
Pages (from-to)1232-1236
Number of pages5
JournalAnnals of Pharmacotherapy
Volume37
Issue number9
DOIs
StatePublished - Sep 2003

Keywords

  • Argatroban
  • Heparin
  • Hepatic failure
  • Renal failure
  • Thrombocytopenia

ASJC Scopus subject areas

  • Pharmacology (medical)
  • Pharmacology, Toxicology and Pharmaceutics(all)

Fingerprint Dive into the research topics of 'Argatroban for heparin-induced thrombocytopenia in hepato-renal failure and CVVHD'. Together they form a unique fingerprint.

  • Cite this