Group

LVESD (mm)

LVEDD (mm)

before treatment

After treatment

before treatment

After treatment

Control group (n = 36)

48.56 ± 3.36

39.05 ± 2.9^①

59.92 ± 4.76

54.27 ± 3.56^①

Observe Group A (n = 36)

47.65 ± 4.59

40.58 ± 3.46^①②

60.12 ± 5.10

49.90 ± 3.21^①②

Observe Group B (n = 34)

48.35 ± 3.90

37.61 ± 3.85^①②③

60.01 ± 4.85

48.63 ± 3.42^①②④