Authored by Zachary Steiber  via The Epoch Times (emphasis ours),

Some children who experienced heart inflammation after COVID-19 vaccination had scarring on their hearts months later, a new long-term study found.

Researchers followed a group of 40 patients aged 12 to 18 for up to one year after the children were diagnosed with myocarditis, or heart inflammation, following vaccination with one of the messenger RNA shots from Pfizer or Moderna. They performed a series of tests, including echocardiograms.

Cardiac magnetic resonance imaging, or cardiac MRIs, was performed on 39 of the 40 patients. Abnormal results came in for 26 of those who were imaged, including 19 who had late gadolinium enhancement, or signs of scarring.