Successful treatment of heparin-associated thrombocytopenia and thrombosis using Hirulog.

Heparin-associated thrombocytopenia is a serious medical problem, especially when the patient requires continued anticoagulation. Hirulog is an immediate-acting intravenous anticoagulant that can be substituted for heparin. A new use of Hirulog in the treatment of life-threatening heparin-associated thrombocytopenia with thrombosis (HATT) is presented. Two patients suffering from the HATT syndrome were successfully treated with Hirulog to prevent further thrombosis. A third patient had developed heparin-associated thrombocytopenia after coronary artery bypass surgery in the past and was subsequently treated with Hirulog during a peripheral angioplasty procedure. Hirulog was an effective and predictable anticoagulant for these patients and was free from adverse effects.