期刊
VACCINES
卷 10, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/vaccines10081226
关键词
COVID-19 vaccines; coagulation factors; antithrombin
资金
- Kuwait Foundation for the Advancement of Sciences [RA HM-2021-008]
COVID-19 vaccines can cause elevation of coagulation factors and antithrombin, with differences observed between different vaccines. The clinical significance of the disruption of coagulation homeostasis remains unclear and requires further research.
Background: Severe coronavirus disease 2019 (COVID-19) is associated with increased risk of thrombosis and thromboembolism. Exposure to COVID-19 vaccines is also associated with immune thrombotic thrombocytopenia, ischemic stroke, intracerebral haemorrhage, and cerebral venous thrombosis, and it is linked with systemic activation of coagulation. Methods: We assess the circulating levels of coagulation factors (factors XI, XII, XIII, and prothrombin) and antithrombin in individuals who completed two doses of either ChAdOx1-S or BNT162b2 COVID-19 vaccine, within the timeframe of two months, who had no previous history of COVID-19. Results: Elevated levels of factors XI, XII, XIII, prothrombin, and antithrombin were seen compared to unvaccinated controls. Levels of coagulation factors, antithrombin, and prothrombin to antithrombin ratio were higher with BNT162b2 compared to ChAdOx1-S vaccine. Conclusions: The clinical significance of such coagulation homeostasis disruption remains to be elucidated but it is worthy of global scientific follow-up effort.
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