World Thrombosis Day

1 in 4 deaths worldwide is related to blood clots

With one of the largest portfolios of hemostasis-specific tests and systems dedicated to the diagnosis of blood-clotting disorders, Siemens Healthineers supports clinicians in the fight against one of the biggest health threats to our communities. Our commitment goes beyond providing clinicians with the diagnostic solutions they need—which is why we are proud to sponsor the annual World Thrombosis Day in an effort to promote thrombosis risk education and ultimately save lives.

World Thrombosis Day

World Thrombosis Day (WTD) is an initiative spearheaded by the International Society on Thrombosis and Hemostasis (ISTH) to raise awareness about the prevalence of blood clots and the actions individuals can take to mitigate their risk of this disease. WTD supports the World Health Assembly’s global target of reducing premature deaths due to non-communicable disease by 25% by 2025.

While thrombosis is the primary factor behind the three leading causes of cardiovascular death—heart attack, stroke, and venous thromboembolism (VTE)—the initial launch of WTD will emphasize prevention of VTE (responsible for an estimated 600,000–800,000 deaths in the U.S. and Europe each year1,2). However, over time WTD will expand its focus to address all thrombotic disorders.

Clinical Risk

More than two–thirds of blood clots in the leg result from being in the hospital, which is the leading cause of preventable deaths.3 Furthermore, certain surgeries, including hip and knee and surgeries for cancer, put a patient at higher risk.


Diagnostic Education

Clinicians are challenged not only by the prevalence of thrombotic disease, but by the broad range of disorders that can be responsible for it. In an effort to share diagnostic strategies and best practices for thrombophilia, Siemens Healthineers offers an extensive selection of educational resources. Check out some of them below.

Thrombin Generation Cascade

View the process of clot formation and learn about the fundamental role that thrombin plays in driving and regulating clotting activity.

Thrombophilia Cascade

View the processes involved in thrombophilia, a condition that leads to unwanted clot development, and how the activity of therapeutic agents can counteract its effects

Interactive Thrombosis Risk Decision Tree

Interactive tool designed to share best practices on how to perform and interpret thrombophilia tests that aid in better patient management.

D-dimer Testing for VTE Exclusion: Impact of an Age-adjusted Cutoff*

D-dimer levels are known to increase with age; this presents a challenge when using D-dimer testing for the exclusion of venous thromboembolism (VTE) in elderly patients. Learn about the performance of the INNOVANCE® D-Dimer assay from Siemens Healthcare Diagnostics when an age-adjusted cutoff was applied in studies conducted by both Siemens and the University Hospital of Münster.


For more information on WTD, please visit

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1Cohen AT, Agnelli G, Anderson FA, Arcelus JI, Bergqvist D, Brecht JG, Greer IA, Heit JA, Hutchinson JL, Kakkar AK, Mottier D, Oger E, Samama MM, Spannagl M. Venous thromboembolism (VTE) in Europe. The number of VTE events and associated morbidity and mortality. Thromb Haemost. 2007 Oct;98(4):756-64.

2Heit J, Cohen A, Anderson F. Estimated annual number of incident and recurrent, non-fatal and fatal venous thromboembolism (VTE) events in the US. Blood. 2005;106:267A.

3Beckman MG, Hooper WC, Critchley SE, Ortel TL. Venous thromboembolism. American Journal of Preventive Medicine. 2010;38(4):S495-S501.

*This white paper provides additional information. Siemens is only responsible for claims as provided in the Instructions for Use. It is the responsibility of the user to validate any modifications made to product claims as provided in the Instructions for Use.