In two elderly patients with low cardiovascular risk profile (0.5 ± 0.5), marginally elevated cTnT (0.03 μg/l), good renal function (1.2 ± 01 mg/dl, 96 ± 42 ml/min), inconspicuous lab-works, no high grade stenosis on X-ray but new arrhythmia with T-wave inversions, the underlying reason for the cTnT elevation could not be identified. This evidence concerns the gene TNNT2 and cardiac arrhythmia.