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Low molecular weight heparin for Hickman catheter--induced thrombosis in thrombocytopenic patients undergoing bone
1Department of Bone Marrow Transplantation, Hadassah University Hospital, Jerusalem, Israel.
Background:
Patients with an indwelling central venous catheter are prone to development of thrombotic complications. Thrombocytopenia in patients undergoing bone marrow transplantation (BMT) generally is protracted. The management of thrombosis in thrombocytopenic patients is difficult because heparin and warfarin are relatively contraindicated because of the high risk of major bleeding. Low molecular weight heparin (LMWH) is a new class of antithrombotic drug. Enoxaparin (Rhone Poulenc Rorer, Antony, France) is an LMWH that has been shown to be effective in the treatment and prophylaxis of venous thrombosis. Enoxaparin, with its high antithrombotic to anticoagulant ratio, may be safer than standard heparin in patients at high risk of hemorrhagic complications.
Methods:
The authors report the cases of five thrombocytopenic patients, undergoing autologous BMT, in whom venous thrombosis developed related to a Hickman catheter.
Results:
All the patients were treated with Enoxaparin and recovered promptly without hemorrhagic complications.
Conclusions:
The authors suggest that Enoxaparin is an effective drug in treating thrombocytopenic patients in whom acute venous thrombosis develops.