We have all heard the talking heads rattle off that myocarditis is “transient” and “mild” and you recover quickly with no long term issues. Specialists like Dr. McCullough have expressed that this is not true, that myocarditis damaged heart tissue does not regenerate, and at the 10 year mark there is a 50% mortality post myocarditis.
Here is a journal article discussing the findings of adolescent patients who had post vaccine myocarditis a year ago, and what their one year follow up appointment results were. They used EKG, ECHO, and cardiac MRI diagnostics to look at the cardiac status of these teenagers.
Demographics: 33 males and 7 females in Hong Kong
Findings:” Impairment of left ventricle and right ventricle myocardial deformation and persistence of LGE in a significant subset of patients with up to 1 year of follow-up was observed.” LGE or Late gadolinium enhancement is what shows non viable cardiac tissue post myocarditis in a cardiac MRI. You don’t want LGE.
“Growing evidence suggests worse prognosis in the presence of altered myocardial deformation and LGE in patients with myocarditis. A short-term study reported abnormal CMR-derived LV longitudinal strain and LGE in 70% to 75% of adolescent patients with COVID-19 vaccine–associated myocarditis followed up for 3 to 8 months.
The implications of impaired systolic and diastolic myocardial deformation and LGE in our patient subset remain unclear. Nonetheless, given that impaired myocardial deformation and LGE are indicators of subclinical myocardial dysfunction and fibrosis, there exists a potential long-term effect on exercise capacity and cardiac functional reserve during stress.“.
This is why in times of cardiac stress (sports, exertion, exercise, etc) we are seeing poor functioning hearts, chest pain, syncope, and sudden cardiac death. When you have stiff fibrotic tissue in the heart due to myocarditis, the cardiac muscle cannot function properly at rest, much less at exertion levels.
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