World Thrombosis Day

External Resources

Centers for Disease Control and Prevention (CDC) USA
The CDC is committed to reducing the significant disease burden of VTE and has made hospital-associated VTE a patient safety priority. They have hosted numerous activities to raise awareness of DVT and PE, and have established pilot surveillance programs to improve hospital tracking for each condition. Several educational resources have been developed for the public, including a webinar series on clotting disorders, a DVT slideshow widget, a tip sheet on how to prevent DVT, and a new health campaign with Duke Hemostasis and Thrombosis Center on women's risks for DVT. For more information, visit

National Blood Clot Alliance (NBCA) (USA)
The National Blood Clot Alliance (NBCA) is a  non-profit, voluntary health organization dedicated to advancing the prevention, early diagnosis and successful treatment of life-threatening blood clots such as deep vein thrombosis, pulmonary embolism, and clot-provoked stroke. NBCA works on behalf of people who may be susceptible to blood clots, including, but not limited to, people with clotting disorders, atrial fibrillation, cancer, traumatic injury, and risks related to surgery, lengthy immobility, child birth and birth control. The organization accomplishes its mission through programs that build public awareness, educate patients and healthcare professionals, and promote supportive public and private sector policy. For more information, visit Patients can learn more about clots, here:

Thrombosis UK (UK)
Dedicated to promoting awareness of thrombosis in the UK, Thrombosis UK offers various resources for patients and opportunities to engage. Learn more, here:

CancerClot information on Cancer-Associated Thrombosis
Whether you currently have a blood clot or you are seeking information on risks and prevention, this is a great resource. The information here is designed to give you direct answers to the important questions you may have about blood clots. If you have any further questions, please contact your doctor, nurse or pharmacist.  Learn more, here:


Resources for Healthcare Professionals

References for VTE Risk Assessment Guidelines and Models

  • Barbar, S., Noventa, F., Rossetto, V., Ferrari, A., Brandolin, B., et al. A Risk Assessment Model for The Identification of Hospitalized Medical Patients at Risk for Venous Thromboembolism: The Padua Prediction Score. J Thromb Haemost 2010; 8: 2450–7.
  • Catterick, D., Hunt, B. Impact of the National Venous Thromboembolism Risk Assessment Tool in Secondary Care in England. Retrospective Population-Based Database Study. Blood Coagul Fibrinolysis, 2014 Sept; 25(6):571-576.
  • Lester, W., Freemantle, N., Begaj, I., Wood, J., Pagano, D. Fatal Venous Thromboembolism Associated with Hospital Admission: A Cohort Study to Assess the Impact of a National Risk Assessment Target. Heart, 2013. Dec; 99(23):1734-9.
  • Mahan, C.E., Liu, Y., Turpie, A.G., Vu, J.T., ,Heddle, N., et al. External Validation of a Risk Assessment Model for Venous Thromboembolism in the Hospitalised Acutely-ill Medical Patient (VTE-VALOURR). Journal of Thrombosis and Haemostasis, 2014; 112 (4):692.
  • NHS National Patient Safety Agency, Feb 2011. How to Guide: Venous Thromboembolism Risk Assessment.
  • NICE Implementation Collaborative Consensus, 2014. Supporting Local Implementation of NICE Guidance on Use of the Novel (non-Vitamin K Antagonist) Oral Anticoagulants in Non-Valvular Atrial Fibrillation.
  • Patient Centered Outcomes Resesarch Institute (PCORI), 2014. Improving Patient-Nurse Communication to Prevent a Life-Threatening Complication. Available from:
  • Rosenberg, D., Eichorn, A., Alarcon M., McCullagh, L., McGinn, T., Spyropoulos, A.C. External Validation of the Risk Assessment Model of the International Medical Prevention Registry on Venous Thromboembolism (IMPROVE) for Medical Patients in Tertiary Health System. Journal of American Heart Association, 2014;3:e001152.
  • Squizzato, A., Agena, W. A new Era for Venous Thromboembolism Prevention in Medical Inpatients. Journal of Thrombosis and Haemostasis, 2014; 112:692-699.
  • Stroud, W., Whitworth, J.M., Miklic, M., Schneider, K.E., Finan, M.A., et al. Validation of a Venous Thromboembolism Risk Assessment Model in Gynecologic Oncology. Gynecologic Oncology, 2014 Jan; 134(1):160-163.
  • Thrombosis Canada, 2015. Thromboprophylaxis: Hospitalized Medical Patients.
  • Thrombosis Canada, 2015. Thromboprophylaxis: For Non-Orthopedic Surgery.
  • VTE Risk Facts. Available from:
  • Zhou, H., Wang, L., Tang, Y., Yang, J., Wang, B., et al. Validation of a Venous Thromboembolism Risk Assessment Model in Hospitalized Chinese Patients: A Case-Control Study. Journal of Atherosclerosis and Thrombosis, 2014; 21:261-272.
  • Zhou, H., Peng, L., Yan, Y., Yi, Q., Tang, Y., et al. Validation of the Caprini Risk Assessment Model in Chinese Hospitalized Patients with Venous Thromboembolism. Thrombosis Research, 2012; 130(5):735-740.

General VTE References

  • Armstrong Institute for Patient Safety and Quality. "Preventing Venous Thromboembolism." Available from:
  • Beckman, M. G., Hooper, W. C., Critchley, S. E., & Ortel, T. L. (2010). Venous thromboembolism. American Journal of Preventive Medicine, 38(4), S495–S501.
  • Centers for Disease Control and Prevention. Data & Statistics. (n.d.). Retrieved February 28, 2014, from
  • Cohen, A. T., Agnelli, G., Anderson, F. A., Arcelus, J. I., Bergqvist, D., Brecht, J. G., et al. VTW Assessment Group in Europe (2007). Venous thromboembolism (VTE) in Europe. The number of VTE events and associated morbidity and mortality. Journal of Thrombosis and Haemostasis, 98(4), 756–764.
  • De Pasquale, Sue. (2015). Trailblazing Trend. Johns Hopkins Nursing. Retrieved from:
  • Engbers, M. J., van Hylckama Vlieg, A., & Rosendaal, F. R. (2010). Venous thrombosis in the elderly: incidence, risk factors and risk groups. Journal of Thrombosis and Haemostasis, 8(10), 2105–2012.
  • Falck-Yitter, Y., Francis C. W., Johanson, N. A., Curley, C., Dahl, O. E., Schulman, S., et al. American College of Chest Physicians. (2012). Prevention of VTE in orthopedic surgery patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-based Clinical Practice Guidelines. Chest, 141(2 Suppl), e278S–325S.
  • Gould, M. K., Garcia, D. A., Wren, S. M., Karanicolas, P. J., Arcelus, J. I., Heit, J. A., . . . American College of Chest Physicians. Prevention of VTE in nonorthopedic surgical patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-based Clinical Practice Guidelines. Chest, 141(2 Suppl), e227S–277S.
  • Heit, J. A., Cohen, A. T., & Anderson, F. A. (2005). Estimated Annual Number of Incident and Recurrent, Non-Fatal and Fatal Venous Thromboembolism (VTE) Events in the US. Blood (ASH Annual Meeting Abstracts), 106, abstract 910.
  • Heit, J. A. (2008). The epidemiology of venous thromboembolism in the community. Arteriosclerosis, Thrombosis, and Vascular Biology, 28(3), 370–372.
  • Hunt, B. J. (2008). Awareness and Politics of Venous Thromboembolism in the United Kingdom. Arteriosclerosis, Thrombosis, and Vascular Biology, 28(3), 398–399.
  • Jha, A. K., Larizgoitia I., Audera-Lopez C., Prasopa-Plaizier N., Waters, H., & Bates D. W. (2013). The global burden of unsafe medical care: analytic modelling of observational studies. BMJ Quality & Safety, 22(10), 809–815.
  • Kahn, S., Lim, W., Dunn, A. S., Cushman, M., Dentali, F., Akl, E. A., et al. American College of Chest Physicians. Prevention of VTE in nonsurgical patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-based Clinical Practice Guidelines. Chest, 141(2 Suppl), e195S–226S.
  • Lloyd-Jones, D., Adams, R. J., Brown, T. M., Carnethon, M., Dai, S., Simone, G. D., et al. Wylie-Rosett, J. (2010). Heart Disease and Stroke Statistics--2010 Update: A Report From the American Heart Association. Circulation, 121(7), E46–E215.
  • Nicolaides, A. N., Fareed, J., Kakkar, A. K., Comerota, A. J., Goldhaber, S. Z., Hull, R., . . . Warwick, D. (2013). Prevention and treatment of venous thromboembolism--international consensus statement. International Angiology, 32(2), 111–260.
  • Office of the Surgeon General. (2008). The Surgeon General's Call to Action to Prevent Deep Vein Thrombosis and Pulmonary Embolism. Rockville, MD: National Heart, Lung, and Blood Institute (US). Available from:
  • Tagalakis, V., Patenaude, V., Kahn, S. R., & Suissa, S. (2013). Incidence of and mortality from venous thromboembolism in a real-world population: the Q-VTE Study Cohort. The American Journal of Medicine, 126(9), 832.e13–21.
  • Wells, P., Forgie, M., & Roger, M. (2014). Treatment of Venous Thromboembolism. Journal of the American Medical Association, 311(7), 717–728.
  • Yusuf, H. R., Tsai, J., Atrash, H. K., Boulet, S., & Grosse, S. D. (2012). Venous thromboembolism in adult hospitalizations−United States, 2007-2009. Morbidity and Mortality Weekly Report, 61(22): 401–404.
  • Zicotti, G. (Ed.). (2014). New Oral Anticoagulants for Acute Venous Thromboembolism. Journal of the American Medical Association, 311(7), 731–732