Growing Concern Vaccine Heart Damage in Adolescents May be Permanent

Hong Kong Study Finds 58% of COVID-19 Vaccine Myocarditis Confirmed by MRI Not Resolved at One Year

By Peter A. McCullough, MD, MPH

Almost everyday the news brings another story of a young person dying of cardiac arrest. It is a sickening realization that COVID-19 vaccine induced myocarditis could leave a zone of scar in the heart, risking the chance of ventricular tachycardia, ventricular fibrillation and cardiac arrest at any time. Recently Hulscher et al have conclusively shown by autopsy that COVID-19 vaccine induced myocarditis can be fatal.

Now a Hong Kong study by Yu and colleagues have found that of young persons who had heart damage confirmed by MRI and who underwent a second scan one year later, 58% had residual abnormalities suggesting a scar could be forming in the heart muscle.

Forty adolescents, mean age of 15, mostly boys were evaluated. It was notable that 73% had no cardiac symptoms, so without an evaluation, the parents would have had no idea their child was suffering heart damage from the COVID-19 vaccine. Approximately 18% of cases initially had reduced left ventricular ejection fraction indicating they were at risk for the development of heart failure.

Yu CK, Tsao S, Ng CW, Chua GT, Chan KL, Shi J, Chan YY, Ip P, Kwan MY, Cheung YF. Cardiovascular Assessment up to One Year After COVID-19 Vaccine-Associated Myocarditis. Circulation. 2023 Aug;148(5):436-439. doi: 10.1161/CIRCULATIONAHA.123.064772. Epub 2023 Jul 31. PMID: 37523760; PMCID: PMC10373639.

The authors point out that several other studies have found a majority of COVID-19 vaccine myocarditis cases with abnormal cardiac MRI findings have not resolved at 3-6 months. Now the report by Yu and colleagues suggest the damage may be permanent at a year.

Please share this important development with parents who have vaccinated their children or are contemplating with succumbing to school mandates. The shot may cause irreversible damage and a lifetime of worry and regret.

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Peter A. McCullough, MD, MPH

President, McCullough Foundation

www.mcculloughfnd.org

Yu CK, Tsao S, Ng CW, Chua GT, Chan KL, Shi J, Chan YY, Ip P, Kwan MY, Cheung YF. Cardiovascular Assessment up to One Year After COVID-19 Vaccine-Associated Myocarditis. Circulation. 2023 Aug;148(5):436-439. doi: 10.1161/CIRCULATIONAHA.123.064772. Epub 2023 Jul 31. PMID: 37523760; PMCID: PMC10373639.

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.

Barmada A, Klein J, Ramaswamy A, Brodsky NN, Jaycox JR, Sheikha H, Jones KM, Habet V, Campbell M, Sumida TS, Kontorovich A, Bogunovic D, Oliveira CR, Steele J, Hall EK, Pena-Hernandez M, Monteiro V, Lucas C, Ring AM, Omer SB, Iwasaki A, Yildirim I, Lucas CL. Cytokinopathy with aberrant cytotoxic lymphocytes and profibrotic myeloid response in SARS-CoV-2 mRNA vaccine-associated myocarditis. Sci Immunol. 2023 May 12;8(83):eadh3455. doi: 10.1126/sciimmunol.adh3455. Epub 2023 May 5. PMID: 37146127.