In April 2026, NASA initiated a working group within the Office of the Chief Health and Medical Officer (OCHMO) to address venous thromboembolism (VTE) risk among astronauts. The effort stems from updated case information and new data revealing altered blood flow status in a cohort of space travelers.
The NASA’s Office of the Chief Health and Medical Officer (OCHMO) working group was initiated in April 2026. This group is reviewing updated VTE case information, as well as additional data gathered revealing altered blood flow status within a cohort of astronauts.
The primary goal of this initiative is to mitigate the risk of VTE during spaceflight. The working group will discuss progress on research and clinical activities intended to achieve this objective. Details regarding specific algorithms or methods were not provided in the source material.
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