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      Venous Thromboembolism Prophylaxis and Treatment in Patients With Cancer: ASCO Clinical Practice Guideline Update.

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          Abstract

          To provide updated recommendations about prophylaxis and treatment of venous thromboembolism (VTE) in patients with cancer.

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          Most cited references131

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          Integration of Palliative Care Into Standard Oncology Care: American Society of Clinical Oncology Clinical Practice Guideline Update

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            Epidemiology of venous thromboembolism.

            John Heit (2015)
            Thrombosis can affect any venous circulation. Venous thromboembolism (VTE) includes deep-vein thrombosis of the leg or pelvis, and its complication, pulmonary embolism. VTE is a fairly common disease, particularly in older age, and is associated with reduced survival, substantial health-care costs, and a high rate of recurrence. VTE is a complex (multifactorial) disease, involving interactions between acquired or inherited predispositions to thrombosis and various risk factors. Major risk factors for incident VTE include hospitalization for surgery or acute illness, active cancer, neurological disease with leg paresis, nursing-home confinement, trauma or fracture, superficial vein thrombosis, and-in women-pregnancy and puerperium, oral contraception, and hormone therapy. Although independent risk factors for incident VTE and predictors of VTE recurrence have been identified, and effective primary and secondary prophylaxis is available, the occurrence of VTE seems to be fairly constant, or even increasing.
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              Development and validation of a predictive model for chemotherapy-associated thrombosis.

              Risk of venous thromboembolism (VTE) is elevated in cancer, but individual risk factors cannot identify a sufficiently high-risk group of outpatients for thromboprophylaxis. We developed a simple model for predicting chemotherapy-associated VTE using baseline clinical and laboratory variables. The association of VTE with multiple variables was characterized in a derivation cohort of 2701 cancer outpatients from a prospective observational study. A risk model was derived and validated in an independent cohort of 1365 patients from the same study. Five predictive variables were identified in a multivariate model: site of cancer (2 points for very high-risk site, 1 point for high-risk site), platelet count of 350 x 10(9)/L or more, hemoglobin less than 100 g/L (10 g/dL) and/or use of erythropoiesis-stimulating agents, leukocyte count more than 11 x 10(9)/L, and body mass index of 35 kg/m(2) or more (1 point each). Rates of VTE in the derivation and validation cohorts, respectively, were 0.8% and 0.3% in low-risk (score = 0), 1.8% and 2% in intermediate-risk (score = 1-2), and 7.1% and 6.7% in high-risk (score >/= 3) category over a median of 2.5 months (C-statistic = 0.7 for both cohorts). This model can identify patients with a nearly 7% short-term risk of symptomatic VTE and may be used to select cancer outpatients for studies of thromboprophylaxis.
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                Author and article information

                Journal
                J. Clin. Oncol.
                Journal of clinical oncology : official journal of the American Society of Clinical Oncology
                American Society of Clinical Oncology (ASCO)
                1527-7755
                0732-183X
                Feb 10 2020
                : 38
                : 5
                Affiliations
                [1 ] University of North Carolina, Chapel Hill, NC.
                [2 ] Cleveland Clinic, Cleveland, OH.
                [3 ] Advanced Cancer Research Group and University of Washington, Seattle, WA.
                [4 ] American Society of Clinical Oncology, Alexandria, VA.
                [5 ] BC Cancer Agency, Vancouver, British Columbia, Canada.
                [6 ] University of Granada, Granada, Spain.
                [7 ] Dartmouth-Hitchcock Medical Center, Lebanon, NH.
                [8 ] Penn State Cancer Institute, Hershey, PA.
                [9 ] Emory University, Atlanta, GA.
                [10 ] James P Wilmot Cancer Center and University of Rochester, Rochester, NY.
                [11 ] Patient Representative, Denver, CO.
                [12 ] Thrombosis Research Institute and University College, London, United Kingdom.
                [13 ] McMaster University, Hamilton, Ontario, Canada.
                [14 ] University of Southern California and Norris Comprehensive Cancer Center, Los Angeles, CA.
                [15 ] University of California, San Francisco, San Francisco, CA.
                [16 ] Fred Hutchinson Cancer Research Center and the University of Washington, Seattle, WA.
                [17 ] Hospital Papa Giovanni XXIII, Bergamo; and University of Milan Bicocca, Milan, Italy.
                Article
                10.1200/JCO.19.01461
                31381464
                2967e449-5d4c-4e10-905b-dce0f4f2e5f4
                History

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