Covid Vaccines May Have Long-Term Heart Effects: Study
A recent study by Nakahara et al. has raised concerns about the long-term effects of Covid vaccines on heart muscle function. The research, published in the Journal of Nuclear Cardiology, found that vaccinated individuals may not fully recover from the vaccines' impact on their hearts within 180 days.
The study measured myocardial Fluorine-fluorodeoxyglucose (F-FDG) uptake, a marker for abnormal cardiac function. It found that vaccinated patients had higher myocardial FDG uptake compared to non-vaccinated patients (median SUVmax, 4.8 vs median SUVmax, 3.3; P < .0001). This increase was observed in patients imaged at various time intervals after their second vaccination, suggesting a persistent effect.
The study also noted a pattern of greater response due to the higher-dose Moderna vaccine compared to the lower-dose Pfizer vaccine. However, it is important to note that the study's cohort composition and participant details from 2023 are not fully detailed in the available search results.
The findings, with a P value of less than .0001, indicate that the vaccines may have caused mild asymptomatic myocardial inflammation more commonly than previously expected. While more research is needed to understand the full implications, these results suggest that the heart muscles of millions of people could have been affected. Further studies are underway to confirm these findings and assess the long-term effects.
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