RT Book, Section A1 Casteel, Kelly A. A1 Kroll, Michael H. A2 Kantarjian, Hagop M. A2 Wolff, Robert A. A2 Rieber, Alyssa G. SR Print(0) ID 1190840223 T1 Cancer-Associated Thrombosis T2 The MD Anderson Manual of Medical Oncology, 4e YR 2022 FD 2022 PB McGraw Hill Education PP New York, NY SN 9781260467642 LK accessmedicine.mhmedical.com/content.aspx?aid=1190840223 RD 2024/04/18 AB KEY CONCEPTSVenous thromboembolism (VTE) is common in patients with cancer and contributes to their morbidity and mortality.All hospitalized patients with cancer should be given pharmacologic thromboprophylaxis unless there is a contraindication.High-risk ambulatory patients with cancer receiving outpatient chemotherapy can be considered candidates for receiving prophylactic-dose apixaban or rivaroxaban.Cancer-associated VTE treatment with anticoagulation is associated with a higher rate of recurrence and bleeding compared with non–cancer-related VTE, so one must fastidiously review the risk–benefit ratio for each patient before beginning anticoagulation.Cancer-associated thrombotic microangiopathy is not caused by ADAMTS-13 autoantibodies and does not improve with plasma exchange.Routine anticoagulation or antiplatelet therapy for cancer patients with atrial fibrillation or coronary artery disease appears to be safe.