NPPB and ventricular tachycardia: Attempts to achieve arrhythmic risk stratification in MFS reported some involved parameters: ventricular ectopy (VE), non-sustained ventricular tachycardia, ventricular tachycardia, LV systolic dysfunction, and elevated serum N-terminal pro-brain natriuretic peptide levels (NT-proBNP) (Hoffmann et al., 2013) [65].