Evidence-based case report: multiple thrombotic episodes associated with lenalidomide and dexamethasone therapy for multiple myeloma.

Lenalidomide in combination with dexamethasone is a treatment for patients with relapsed or refractory myeloma. Although this combination demonstrates a high level of efficacy, it further exacerbates the hypercoaguable state that exists within myeloma. Thromboprophylactic regimen require careful selection and if warfarin is chosen, assiduous monitoring is required to ensure it will be clinically effective. We report the case of one patient who experienced multiple thrombotic events despite anticoagulant or antiplatelet thromboprophylaxis and review the contributing factors.