Table 2 Surgical outcomes of robot-assisted partial nephrectomy

Approach (%)

Transperitoneal

114 (65.5)

69 (60.5)

31 (81.6)

27 (71.1)

11 (28.9)

Retroperitoneal

60 (34.5)

45 (39.5)

7 (18.4)

11 (28.9)

27 (71.1)

Operative time (min)

221 (140–399)

223 (140–353)

197.5 (140–353)

231 (153–290)

239.5 (174–328)

Operator

6

1

1

1

1

Console time (min)

All cases

143 (42–277)

138.5 (42–277)

140.5 (64–203)

142 (74–200)

136.5 (42–277)

Transperitoneal

157 (42–262)

Retroperitoneal

113 (58–277)

Estimated blood loss (mL)

42 (0–1805)

60 (0–1805)

63 (0–1805)

50.5 (0–1184)

74.5 (0–736)

Warm ischemia time (min)

17.3 (9.2–56)

17.2 (9.2–56.0)

17.4 (9.3–34.0)

16.9 (10.1–56.0)

17.3 (10.9–29.2)

Intra-operative complication (%)

Satava ≥ 2

3 (1.7)

1 (0.9)

1 (2.6)

0 (0)

0 (0)

Postoperative complication (%)

Clavien-Dindo ≥ 2

27 (15.5)

17 (14.9)

5 (13.2)

6 (15.8)

6 (15.8)

Positive surgical margin (%)

1 (0.6)

1 (0.9)

1 (2.6)

0 (0)

0 (0)

eGFR at 1 month after operation (%)

≥ 90%

121 (69.5)

73 (64.0)

29 (76.3)

28 (73.7)

16 (42.1)

Trifecta accomplishment (%)

151 (86.8)

100 (87.7)

33 (86.8)

32 (84.2)

35 (92.1)

Histology (%)

Clear

128 (73.6)

84 (73.7)

27 (71.1)

33 (86.8)

24 (63.2)

Papillary

22 (12.6)

14 (12.3)

4 (10.5)

3 (7.9)

7 (18.4)

Chromophobe

9 (5.2)

7 (6.1)

2 (5.3)

2 (5.3)

3 (7.9)

AML

7 (4.0)

5 (4.4)

3 (7.9)

0 (0)

2 (5.3)

Oncocytoma

3 (1.7)

3 (2.6)

2 (5.3)

0 (0)

1 (2.6)

Xp11.2

1 (0.6)

1 (0.9)

0 (0)

0 (0)

1 (2.6)

MTSCC

1 (0.6)

0 (0)

0 (0)

0 (0)

0 (0)

Pathological T (%)

1a

145 (83.3)

90 (78.9)

31 (81.6)

33 (86.8)

26 (68.4)

1b

15 (8.6)

14 (12.3)

1 (2.6)

5 (13.2)

8 (21.1)

3a

2 (1.1)

2 (1.8)

1 (2.6)

0 (0)

1 (2.6)