In conclusion, the abnormal cardiac biomarker pattern in COVID-19 patients was significantly associated with increased mortality risk, and the newly established COVID-19 prognostic cutoff values of hs-cTnI, CK-MB, (NT-pro)BNP, CK, and MYO were found to be much lower (≈50%) than reference upper normal limits for the general population. This evidence concerns the gene TNNI3 and COVID-19.