Table 1: Nephron sparing surgery versus radical nephrectomy: clinical, surgical and pathological parameters.

Parameter

RN

NSS

p-value

No of patients/No of tumours

162

230/246

 

Women/men

62/100

67/169

0.039

Median age (range)

65 (26-88)

67 (23-87)

0.094

BMI

26.4 (18-44)

24.8 (19.5-37)

0.68

ASA 3 + 4

68 (41.9%)

78 (33.9%)

0.77

Patients with diabetes

25 (15.4%)

31 (13.5%)

0.56

Patients with hypertension

81 (50%)

123 (53.5%)

0.48

Preop. creatinine (mg/dl)

1.0 (0.6-3.4)

0.94 (0.56-3.5)

0.811

Postop. creatinine (mg/dl)

1.3 (0.4-4.3)

1.12 (0.56-4.58)

0.004

Last FU creatinine

1.2 (0.6-8.8)

1.08 (0.57-8.51)

0.002

Preop. GFR (ml/min/1.73 m2)

62 (13-146)

67.5 (13-109)

0.115

Postop. GFR (ml/min/1.73 m2)

51 (13-234)

59.5 (11-113)

< 0.001

Last FU GFR (ml/min/1.73 m2)

54 (1.73-144)

65 (6-113)

< 0.001

CKD stage I/II/III/IV/V

11/90/55/5/1

25/140/61/3/1

0.648

Pathological tumour size; median (range)

6.2 (0.3-20)

3 (0.2-18)

< 0.001

Pathology

 

 

 

Clear-cell

136 (83.9%)

156 (63.4%)

< 0.001

Papillary

13 (8.0%)

73 (29.7%)

Chromophobe

6 (3.7%)

12 (4.9%)

Others

7 (4.3%)

5 (2.0%)

Tumor staging

 

 

 

pT1

79 (48.7%)

223 (90.6%)

< 0.001

pT1a

27 (16.6%)

183 (74.3%)

pT1b

52 (32.1%)

40 (16.3%)

pT2

28 (17.2%)

11 (4.4%)

pT2a

23 (14.1%)

6 (2.4%)

pT2b

5 (3.1%)

5 (2.0%)

pT3

50 (30.8%)

11 (4.4%)

pT3a

33 (20.3%)

11 (4.4%)

pT3b

17 (10.5%)

-

pT4

3 (1.8%)

1 (0.4%)

N1 (5%)

4 (2.4%)

1 (0.4%)

0.020

N2

1 (0.6%)

-

M1

16 (9.8%)

7 (2.8%)

0.002