Table 1.

Characteristics and outcomes of open, laparoscopic and robot-assisted pyeloplasty (Lap laparoscopic, Retro retroperitoneal, Trans transperitoneal, NM not mentioned)

Reference	Method	Number	Approach	Operating time (min)	Follow-up period (months)	Success rate (%)
Lee et al. [23]	Open	33	Retro	181	20 (1–57)	100
Gogus et al. [24]	Open	180	Retro	NM	12	91
Moon et al. [15]	Lap	170	Retro	170	15 (3–72)	97
Inagaki et al. [25]	Lap	147	Trans	140	24 (3–84)	98
Schwentner and Pelzer [20]	Robotic	92	Trans	108	39 (3–73)	97
Patel [19]	Robotic	50	Trans	122	11	96
Palese et al. [26]	Robotic	38	Trans	225	12	94
Mendez-Torres et al. [27]	Robotic	32	Trans	300	8	88