Semin Thromb Hemost 2014; 40(03): 338-347
DOI: 10.1055/s-0034-1370793
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Venous Thromboembolism in Multiple Myeloma

Valerio De Stefano
1   Institute of Hematology, Department of Medical Sciences, Catholic University, Rome, Italy
,
Tommaso Za
1   Institute of Hematology, Department of Medical Sciences, Catholic University, Rome, Italy
,
Elena Rossi
1   Institute of Hematology, Department of Medical Sciences, Catholic University, Rome, Italy
› Author Affiliations
Further Information

Publication History

Publication Date:
05 March 2014 (online)

Abstract

As for other malignancies, multiple myeloma is associated with an increased risk of venous thromboembolism (VTE). The incidence of VTE is estimated as 8 to 22 per 1,000 person-years; risk factors can be patient related (advanced age, other risk factors shared with the general population), disease related, and treatment related. Disease-related risk factors can derive from the monoclonal component (rarely hyperviscosity or inhibition of natural anticoagulants) or hypercoagulability sustained by inflammatory cytokines (increased von Willebrand factor, factor VIII, fibrinogen levels, decreased protein S levels, acquired activated protein C resistance). The 1 to 2% baseline of incident VTE associated with conventional therapies as melphalan and prednisone is at least doubled by the use of doxorubicin or other chemotherapeutic agents. The VTE rate associated with thalidomide or lenalidomide as monotherapy is similar, whereas combination with high-dose dexamethasone or multiple chemotherapeutic agents induces a multiplicative effect on the VTE rate up to 25%. Low-molecular-weight heparin (LMWH), fixed low-dose warfarin, and aspirin are acceptable strategies for antithrombotic prophylaxis, reducing VTE to 5 to 8% in thalidomide-treated patients and 1 to 3% in lenalidomide-treated patients. LMWH shows an advantage in efficacy not statistically significant. Prophylaxis should be tailored considering individual risk factors for VTE, the stage of disease, the possible occurrence of thrombocytopenia, or renal insufficiency.

 
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