Table 2 Surgical outcomes of retroperitoneal LRN (n = 126) via LP approach compared to LPS approach (Student’s t test)

Operative duration (mean ± SD, min)

125.2 ± 5.8

135.4 ± 11.9

< 0.0001

Volume of blood loss (mean ± SD, mL)

135.3 ± 17.2

219.6 ± 30.9

< 0.0001

Volume of transfusion (mean ± SD, mL)

55.6 ± 28.3

141.1 ± 50.4

< 0.0001

Drainage volume (mean ± SD, mL)

225.8 ± 43.2

212.0 ± 22.4

0.0331

Time to resume oral intake (mean ± SD, day)

2.1 ± 0.3

1.8 ± 0.3

< 0.0001

Time to resume off-bed activities (mean ± SD, day)

2.6 ± 0.2

2.3 ± 0.3

< 0.0001

Time of drain removal (mean ± SD, day)

5.1 ± 0.6

4.4 ± 0.2

< 0.0001

Length of hospitalization (mean ± SD, day)

10.7 ± 3.5

11.4 ± 2.8

0.2370