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Last week, the EVA concluded that abnormal blood clot formation should be labeled a ‘very rare’ side effect of the AstraZeneca pandemic coronavirus vaccine, noting that the benefits of these vaccines continue to outweigh the potential risks.
Commenting on how COVID-19 and a vaccine to protect against it may be associated with a risk of thrombosis, neurologist prof. From the VUL Santara Clinic. D. Jatužis stated that the cause of such disorders can be many factors.
“It just came to our attention then [skiepijimo vakcina] no Russian roulette. The findings say that a slightly higher incidence of thrombosis can be expected in a group of people vaccinated against COVID-19. Thrombosis is a blockage of a blood vessel and in this case it is called venous system thrombosis.
However, in the first place, cases of thrombosis, including cerebral venous thrombosis, in people who have recently been vaccinated are very rare. And compared to that threat, the very real danger that we hear every day from the virus and the COVID-19 disease, that number is very small, ”he told The News Radio.
The risk of bleeding disorders is increased by many factors.
On the other hand, according to him, as the EVA points out, there is no conclusive conclusion that these microscopic increases in risk are clearly related to the vaccine.
“Venous thrombosis has many risk factors. It is a well-known disease: cerebral thrombosis affects 3-5 people per million people each year. And in the Santara clinics we have 10 to 15 cases of this disease every year. Most of them are middle-aged people, 35 years old. is the average. And women get sick more often, “explained the professor.
According to him, there are many different reasons for this: oral hormonal contraceptives, cancers and drugs used to treat them, systemic inflammatory diseases, lupus, any complicated generalized inflammation, including severe pneumonia, sepsis, fluid loss in severe diarrhea, vomiting.
“But these are not the only reasons, there are about 100 reasons that can cause cerebral venous thrombosis,” said D. Jatužis.
The doctor recalled that thrombosis of various localities is first associated with the COVID-19 disease itself, and only then can we talk about the possible effects of treatment or vaccines.
“The experience is already accumulating and there is no doubt that the COVID-19 disease manifests itself in a highly activating blood coagulation system and, in fact, in severe forms of this disease it has various thrombotic complications. This is well known and therefore appropriate intensive treatment is administered in hospitals, “said D. Jatužis.
Much more often caused by popular drugs.
When asked why such reactions occurred after the AstraZeneca vaccine, the professor said that it could not be ruled out that the immune mechanisms triggered by this type of vaccine could be more associated with the risk of thrombosis.
“Because, as we know today, in the rare cases of cerebral venous thrombosis, there is also a decrease in the number of platelets in the platelets (thrombocytopenia) and at the same time thrombosis. And researchers have already discovered and linked that, in this case, those thromboses of the cerebral veins or other system are very similar to thrombocytopenia and thrombosis induced by heparin.
Heparin is an anticoagulant that is used by one third of all hospitalized patients for any reason. And if we accept resuscitation patients, two-thirds or more use this drug or a similar one. And heparin can cause a very similar process – platelet depletion and thrombotic growth – according to Americans, in 760 cases out of 100,000. patients treated, ”he said.
For comparison, the doctor presented German studies showing that in terms of COVID-19 vaccination, 1 case of thrombosis was diagnosed in 99,000. vaccinated people.
“T. Y. 10 times less common than heparin, a daily drug used throughout the world. That is if we vaccinate 1 million. Based on this worse prognosis of the Lithuanian population, we can expect between 11 and 12 cases, ”said D. Jatužis.
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