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May 10, 2023 COVID Views

COVID

Does Vaccine-Induced Myocarditis Put Teens at Risk of Future Heart Attacks?

A new study shows that six months after being diagnosed with vaccine-induced myocarditis, 80% of teens had not recovered.

covid vaccine myocarditis teen heart attack feature

Every cardiology office in America should be recognizing COVID-19 vaccine-induced myocarditis presenting in young persons, 90% are male, with chest pain, effort intolerance, arrhythmias and cardiac arrest after injections of mRNA vaccines.

As I see these patients, the common question is, “When is this over?”

While electrocardiogram and blood tests tend to normalize quickly, my concern is that ongoing inflammation is occurring due to the continued production of the Wuhan spike protein coded by the long-lasting Pfizer or Moderna mRNA vaccines.

While blood tests can give inferences on inflammation, cardiologists also use cardiac MRA to visualize the inflammation, establish the diagnosis, and craft a prognosis.

We would hope young teenagers would resolve their MRI results and go on with life. A recent report to the contrary caught my attention.

Barmada et al studied a clinical cohort consisting of 23 patients hospitalized for vaccine-associated myocarditis and/or pericarditis. The cohort was predominately male (87%) with an average age of 16.9 ± 2.2 years (ranging from 13 to 21 years).

Patients had largely noncontributory past medical histories and were generally healthy before vaccination. Most patients had symptom onset 1 to 4 days after the second dose of the BNT162b2 mRNA vaccine.

Six patients either first experienced symptoms after a delay of >7 days after vaccination or were incidentally positive for SARS-CoV-2 by polymerase chain reaction (PCR) testing upon hospital admission; these six patients were thus excluded from further analyses, although they potentially reflect the breadth of clinical presentations of vaccine-associated myopericarditis.

The remaining cohort of 17 patients showed no evidence of recent prior SARS-CoV-2 infection, with antibodies to spike protein but not to nucleocapsid protein and negative nasopharyngeal swab reverse transcription quantitative PCR at hospital admission.

Credit: Anis Barmada et al.

While the authors clearly show high levels of inflammatory markers, my attention was drawn to the follow-up MRI scans.

As shown in the figure, only 20% had resolved their abnormalities (late gadolinium enhancement) at over six months (199 days).

This paper raises questions: 1) is there ongoing heart damage and inflammation at six months? 2) does the LGE in 80% represent a permanent “scar” putting these children at risk for future cardiac arrest?

These data strongly call for large-scale research into this emerging problem given the large number of potential young persons at risk.

Originally published on Dr. Peter McCullough and John Leake’s Courageous Discourse Substack page.

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