NPPB and ventricular tachycardia: Fatigue in prodrome, amaurosis/syncope in clinical symptoms, TNI, NT-proBNP, CRP, sST2, creatinine (Cr) and the proportion of ventricular tachycardia on admission were all higher in FM group than those in non-FM group (P < 0.05), while the proportion of normal electrocardiogram, admission left ventricular ejection fraction (LVEF) and LVEF ≤ 40% proportions were lower than those in non-FM group (P < 0.05), and the differences in the remaining clinical indicators were not statistically significant (Table 1).