Vaccines may increase brain vein clots in severe COVID-19

Vaccines may increase brain vein clots in severe COVID-19

Note that views expressed in this opinion article are the writer’s personal views and not necessarily those of TrialSite.

Dr. Ron Brown

June 9, 2021

A June 8, 2021 article in claims that brain vein clots are less likely with vaccines than with severe COVID. Brain Vein Clots Less Likely With Vaccine Than With Severe COVID | MedPage Today. Stated another way, incidence of brain vein clots (cerebral venous sinus thrombosis – CVST) is higher in severely ill people with COVID-19 than in otherwise healthy people who develop brain vein clots as an adverse effect of COVID-19 vaccines (vaccine-induced thrombotic thrombocytopenia – VITT). Although there is nothing particularly astonishing about comparing blood clot outcomes in groups of seriously ill and healthy people, the author of the article appears to draw a misleading conclusion about vaccine risk-benefits from these data. The author’s interpretation seems to be that people who wish to avoid brain vein clots have a better chance of protection if they are vaccinated, even with the potentially small risk of brain vein clots from the vaccine. The logic is clear: vaccines prevent COVID-19, and so...

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