Table 1 Preoperative data

N

45

45

–

Male gender

33 (73%)

32 (71%)

0.450

Age (years)

76.3 ± 4.2

76.6 ± 4.7

0.731

−2 to 2

BSA (m²)

1.93 ± 0.19

1.91 ± 0.18

0.611

− 0.07 to 0.10

BMI (kg/m²)

26.5 ± 3.70

27.2 ± 4.70

0.519

−2.5 to 1.1

EuroSCORE II

3 (2–5)

3 (3–5)

0.264

−1 to 1

Hypertension

31 (80%)

26 (68%)

0.268

COPD

2 (5%)

0 (0%)

0.157

NIDDM

3 (8%)

8 (21%)

0.094

IDDM

2 (5%)

3 (8%)

0.622

PAD

7 (18%)

3 (8%)

0.189

CD

6 (15%)

5 (13%)

0.780

GFR (ml/min)

77 ± 21

69 ± 28

0.142

−3 to 19

sCr (μmol/dl)

88 (80–101)

84 (69–116)

0.452

−18 to 12

eGFR (ml/min)

72 ± 22

71 ± 29

0.966

− 11 to 11