组别(n)

NT-proBNP (pg/L)

治疗前

治疗后

对照组(42)

2894.4 ± 758.6

756.2 ± 243.6

观察组(42)

2902.5 ± 767.4

415.4 ± 356.6

t

0.221

21.696

P

0.826

<0.001