NPPB and hypophosphatasia: In condition of HPP (>71%), NT-proBNP was reduced to 1,085 ± 2,074 ng/L after half year of HPSP from the baseline 2,757 ± 2,835 ng/L in patients of QRS>120 ms (p = 0.010), and to 1,219 ± 1,032 ng/L from baseline 2,930 ± 2,897 ng/L in the patients of QRS ≤ 120 ms (p = 0.032).