Table 1 Tumor characteristics and perioperative outcomes of MIBC patients undergoing radical cystectomy with a neobladder via the Studer and Y-pouch techniques

Age, mean (± SD)

62.5 (± 10.7)

62.7 (± 11.9)

62.6 (± 11)

0.957

Gender, n (%)

 Male

54 (100)

28 (77.8)

82 (91.1)

0.021

 Female

0 (0)

8 (22.2)

8 (8.9)

Presentation

 Gross hematuria

46 (85.2)

36 (100)

82 (91.1)

0.406

 Microscopic hematuria

4 (7.4)

0 (0)

4 (4.4)

 No hematuria

4 (7.4)

0 (0)

4 (4.4)

Time to radical cystectomy (days)

 Median (IQR)

53 (18.5, 78)

69 (63.2, 109.5)

65 (42, 92)

0.05

pT stage, n (%)

 2

40 (74)

28 (77.8)

68 (75.5)

0.199

 3

12 (22.2)

2 (5.6)

14 (15.6)

 4

2 (3.7)

6 (16.7)

8 (8.9)

pN stage, n (%)

 0

48 (88.9)

32 (88.9)

80 (88.9)

0.573

 1

6 (11.1)

2 (5.6)

8 (8.9)

 2

0 (0)

2 (5.6)

2 (2.2)

Grading

 Low grade

2 (3.7)

0 (0)

2 (2.2)

 High grade

52 (96.3)

36 (100)

88 (97.8)

BMI

 Mean (± SD)

23.2 (± 2.8)

22.4 (± 2.7)

22.9 (± 2.8)

0.398

 Baseline Cr (mg/dL)

1.02 (± 0.6)

1.00 (± 0.7)

1.01 (± 0.6)

0.23

Operative time

 Median (IQR)

290 (242.5, 350)

300 (271.2, 335)

290 (255, 340)

0.826

Cystectomy time

 Median (IQR)

140 (120, 150)

130 (120, 157.5)

140 (120, 150)

0.797

Neobladder time

 Median (IQR)

150 (132.5, 200)

155 (150, 185)

155 (145, 200)

0.78

Blood loss (mL)

 Median (IQR)

1300 (1000, 1650)

1000 (800, 2000)

1200(1000,1700)

0.149

Postoperative chemotherapy

0.166

 No

8 (14.8)

12 (33.3)

20 (22.2)

 Yes

46 (85.2)

24 (66.7)

70 (77.8)

Clean intermittent catheterization

0.064

 Yes

16 (29.6)

2 (5.6)

18 (20)

 No

38 (70.4)

34 (94.4)

72 (80)

Cystostomy

< 0.001

 No

0 (0)

34 (94.4)

34 (37.8)

 Yes

54 (100)

2 (5.6)

56 (62.2)

Catheterization days

< 0.001

 Median (IQR)

21 (21, 21)

13.5 (10.2, 14)

21 (14, 21)