The mean age was 68.9 ± 13.2, 46.4% of the patients were male, the mean BMI was 23.1 ± 4.0 kg/m2, the mean EF was 40.9 ± 16.2%, patients with NYHA class III–IV heart failure accounted for 63.1%, and the median NT-proBNP value was 3776 (1672–8806) pg/ml. Here, NPPB is linked to heart failure.