That’s why the possibility of myocarditis being triggered by COVID-19 vaccines in young patients was initially so concerning to doctors, Crotty said. Myocarditis can cause lasting, debilitating damage to the heart. But of the roughly 29% of study participants who were flagged as having cardiac side effec ts following the shot, only one - the teen with myopericarditis - developed anything concerning, he said. “When you’re talking about cardiac side effects, people think of very serious outcomes,” Shane Crotty, a vaccine expert at the La Jolla Institute for Immunology, told the AP. “There’s really no insight gained from this study.” “Most of the symptoms could occur if I gave someone an injection with water,” he said. Most of the other symptoms that the study documented, such as shortness of breath, are insignificant and could be due to anxiety from receiving the vaccine, Adler added.
Its findings are also consistent with the general medical consensus, he said: there is an increased risk of myocarditis, which is inflammation specifically affecting the heart muscle, among young males following COVID-19 vaccination, but the benefits of vaccination outweigh the risks. He noted that the study included no placebo to compare the results to. Eric Adler, cardiologist and director of cardiac transplant and mechanical circulatory support at University of California, San Diego Health. The study has almost “no value,” said Dr. However, the most common effects were rapid heart rate and shortness of breath, and the paper notes that the “clinical presentation of myopericarditis after vaccination was usually mild, with all cases fully recovering within 14 days.” Only one case of myopericarditis was “confirmed.” Cardiovascular side effects - from heart palpitations to myopericarditis, a type of heart inflammation - were found in roughly 29% of the patients. It examined cardiovascular side effects among 301 Thai students, ages 13 to 18, who received a second dose of the Pfizer COVID-19 vaccine. The study, conducted by researchers in Thailand and not yet published or peer reviewed, is being misrepresented.
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