NPPB and Schnyder corneal dystrophy: In our study, the findings of weaker association between cTnI and SCD compared with NTproBNP could reflect a greater risk of arrhythmia and SCD with volume overload and ventricular stretch detected by NTproBNP versus elevation of cTnI which could be from myocardial injury but could also reflect decreased renal clearance [23].