M arkers of myocardial necrosis, such as troponins I (cTnI) and T (cTnT), and indicators of HF, such as N‐terminal pro B‐type (NT‐proBNP) and the active form B‐type natriuretic peptide (BNP) are frequently utilized in clinical practice. This evidence concerns the gene TNNT2 and hydrops fetalis.