Argatroban use in dialysis patients.

Semin Dial

Published: June 2004

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http://dx.doi.org/10.1111/j.1525-139x.2004.17123.xDOI Listing

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Heparin-induced thrombocytopenia type II (HIT) is a rare and serious complication of heparin exposure and is always a potential risk in hemodialysis patients who routinely receive heparin. It is particularly likely to occur during the induction phase of dialysis. However, it is known to be less prevalent in long-term maintenance dialysis.

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Immunologic Effects of Heparin Associated With Hemodialysis: Focus on Heparin-Induced Thrombocytopenia.

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Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada; Department of Medicine, McMaster University, Hamilton, Canada; Transfusion Medicine, Hamilton Regional Laboratory Medicine Program, Hamilton General Hospital, Hamilton Health Sciences, Hamilton, Canada; Service of Benign Hematology, Hamilton General Hospital, Hamilton Health Sciences, Hamilton, Canada. Electronic address:

Intermittent hemodialysis (HD) is almost invariably performed with heparin, and thus HD patients are at risk of developing the immune-mediated adverse effect heparin-induced thrombocytopenia (HIT), caused by anti-platelet factor 4/heparin IgG, which strongly activates platelets. HIT patients develop hypercoagulability with greatly increased risk of thrombosis, both venous and arterial. Certain HIT-associated complications are more likely to develop among HD patients, including hemofilter thrombosis despite heparin, intravascular catheter and/or arteriovenous fistula-associated thrombosis, post-heparin bolus anaphylactoid/anaphylactic reactions, and thrombotic stroke and acute limb artery thrombosis (reflecting the high frequency of underlying arteriopathy in many patients with renal failure).

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Heparin-induced thrombocytopenia (HIT) is a disorder originating from exposure to heparin and has a spectrum of presentation ranging from asymptomatic positive antibodies to thrombotic complications. When symptomatic, it is associated with morbidity and mortality. The incidence of HIT in the ESRD population is yet to be defined.

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