Preoperative

Postoperative

P value

(n=120)

(n= 110)

NYHA class

3.31 ± 0.56

1.50 ± 0.61

<0.001*

CCS grade

3.11 ± 0.55

1.38 ± 0.52

<0.001*

LVEDD (cm)

5.79 ± 0.53

5.63 ± 0.51

0.002*

LVESD (cm)

4.58 ± 0.70

4.35 ± 0.64

0.001*

EF (%)

37.49 ± 2.89

40.30 ± 8.19

<0.001*

NYHA = New York Heart Association, CCS = Canadian cardiovascular society, EF = ejection fraction, LVEDD = left ventricular end diastolic diameter, LVESD = left ventricular end systolic