Table 8 Predictors for overall free-reoperation survival

NYHA FC ≥3

−0.39

0.20

−1.91

0.68

3.66

0.056

Age (years)

−0.67

0.29

−2.3

0.51

5.3

0.022

LVEF ≤ 35 %

0.65

0.25

−2.61

0.53

6.83

0.009

Chronic renal failure

−0.63

0.33

−1.96

0.53

3.83

0.050

Reoperation

0.52

0.22

2.37

1.7

5.63

0.018

Combined surgery

1.02

0.30

3.37

2.78

11.36

0.00075

Annulus enlargement

0.026

0.012

2.13

1.03

4.55

0.033