Table 2.

Perioperative and follow-up data

Variable	RERBT (n = 40)	C-TURBT (n = 50)	P value
Operative time (min)	36 ± 11.8	34 ± 13.6	0.464
Complications			0.7633
Grade I	1 (2.5%)	2 (4%)
Grade II	6 (15%)	8 (16%)
Grade III	0	0
Obturator nerve reflex	9 (22%)	12 (24%)	0.867
Bladder perforation	2 (5%)	4 (8%)	0.689
Presence of the detrusor muscle
Tumor specimen	(40/40) 100%	(27/50) 54%	0.000
Tumor base	(40/40) 100%	(35/50) 70%	0.000
Irrigation (day)	1.16 ± 0.41	1.22 ± 0.45	0.518
Catheterization (day)	4.25 ± 2.04	4.65 ± 2.16	0.373
Postoperative hospital stay (day)	4.07 ± 0.57	4.18 ± 0.59	0.400
Residual tumor on the base	0	2 (5%)	0.500
Follow-up (months)	10.8 ± 3.9	11.3 ± 4.22	0.775
Cumulative recurrence
In field	2 (5%)	5 (10%)	0.455
Out of field	6 (15%)	7 (14%)	0.893
Over all	8 (20%)	12 (24%)	0.650
LMP	0	0	-
LG	1 (2.5%)	2 (4%)	0.693
HG	7 (17.5%)	10 (20%)	0.763

RERBT retrograde en bloc resection of bladder tumor, C-TURBT conventional transurethral resection of bladder tumor, LMP papillary urothelial neoplasia of low malignant potential, LG low-grade papillary urothelial carcinoma, HG high-grade papillary urothelial carcinoma