Subclinical – not (yet) observable – myocarditis after mRNA vaccination may be more common than initially thought

by time news

It is now widely known that mRNA corona vaccines can cause heart damage, especially in boys and young men. Just as the risk of this is greater from vaccination than from infection with the coronavirus. While these heart conditions are quite rare in this group, on the order of 1 in 1000 to 1 in 3000, the aftermath can be long lasting. At follow-up appointments, the boys or young men usually feel well and no exercise restrictions are imposed. But in more than half of the cases, MRI scans of their hearts show abnormalities that can last for months (1-3).

Because of this serious side effect, so-called prospective studies (subjects with a risk factor are then followed for a long time to investigate whether they develop a certain disease) in a number of places in the world where all subjects were tested after administration of the mRNA vaccines, independent of the occurrence of complaints. A first study from Thailand in boys aged 13-18 years found a high rate (3.5%) of subclinical heart damage after the second vaccination.

In a recent article in the leading scientific journal Science Christian Müller, director of the Cardiovascular Research Institute at the University Hospital Basel, says he recently collected blood samples from nearly 800 hospital workers three days after they received a Covid-19 booster. None of them met the criteria for myocarditis, but 40 had high levels of troponin, a molecule that may indicate damage to the heart muscle. Chronic heart problems and other pre-existing conditions could be the cause in 18 cases, but for the other 22 cases (2.8% of the participants), women and men, Müller thinks that the vaccine increased troponin levels. These findings, presented by him at a conference in August 2022, align with the Thai study. In addition, they suggest that a high percentage of vaccine-induced heart damage can also occur in older groups.

Although Müller is not concerned about the loss of 1000 to 2000 heart muscle cells as a result of vaccination, he is concerned about a possible cumulative effect of annual boosters. “I am very concerned if this becomes a recurring phenomenon.”

A clear explanation (in English) of the data of Dr. Muller here:

The Doctors Collective has been speaking out for some time against vaccinating boys and young men with the mRNA vaccines, and calls for restraint in new rounds of vaccination, especially if the health benefit is not clearly documented.

On the latter, even Paul Offit, an infectious disease specialist at Children’s Hospital in Philadelphia and director of the Vaccine Education Center, who ranks among the top medical establishment, thinks that if the goal is to stave off serious illness There is little evidence that healthy people under the age of 65 need a booster dose – especially not adolescents.
A closer example: the Danish National Institute for Public Health and the Environment (RIVM) now advises to only test people under the age of 50 if they fall into a certain risk category.

References:

  1. Schauer J, Buddhe S, Gulhane A, Sagiv E, Studer M, Colyer J, Chikkabyrappa SM, Law Y, Portman MA. Persistent Cardiac Magnetic Resonance Imaging Findings in a Cohort of Adolescents with Post-Coronavirus Disease 2019 mRNA Vaccine Myopericarditis. J Pediatr. 2022 Jun;245:233-237. doi: 10.1016/j.jpeds.2022.03.032. Epub 2022 Mar 26. PMID: 35351530; PMCID: PMC8957353.
  2. Kracalik I, Oster ME, Broder KR, Cortese MM, Glover M, Shields K, Creech CB, Romanson B, Novosad S, Soslow J, Walter EB, Marquez P, Dendy JM, Woo J, Valderrama AL, Ramirez-Cardenas A, Assefa A, Campbell MJ, Su JR, Magill SS, Shay DK, Shimabukuro TT, Basavaraju SV; Myocarditis Outcomes After mRNA COVID-19 Vaccination Investigators and the CDC COVID-19 Response Team. Outcomes at least 90 days since onset of myocarditis after mRNA COVID-19 vaccination in adolescents and young adults in the USA: a follow-up surveillance study. Lancet Child Adolesc Health. 2022 Sep 21:S2352-4642(22)00244-9. doi: 10.1016/S2352-4642(22)00244-9. Epub ahead of print. PMID: 36152650.
  3. Karlstad Ø, Hovi P, Husby A, et al. SARS-CoV-2 Vaccination and Myocarditis in a Nordic Cohort Study of 23 Million Residents. JAMA Cardiol. 2022;7(6):600–612. doi:10.1001/jamacardio.2022.0583

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