The Safety and Efficacy of Endoscopic Combined Intrarenal Surgery (ECIRS) versus Percutaneous Nephrolithotomy (PCNL): A Systematic Review and Meta-Analysis

Table 1

Stone size, multiplicity, and percutaneous access site.

Study	Stone size		Multiple stones, N (%)		Percutaneous puncture site, N (%)
					Upper calyx		Middle calyx		Lower calyx
	ECIRS	PCNL	ECIRS	PCNL	ECIRS	PCNL	ECIRS	PCNL	ECIRS	PCNL
Nuño de la Rosa et al. [13]	753.9 ± 343.4	649.5 ± 407.9	45 (46)	23 (39.8)	NS	NS	NS	NS	NS	NS
	39.9 ± 1.3	39.8 ± 1.1
Hamamoto et al. [12]	Area NS	Area NS	33 (55)	6 (32)	NS	NS	NS	NS	NS	NS
	39.2 ± 2.6	38.4 ± 5.8
Wen et al. [17]	689.23 ± 218.39	645.35 ± 232.51	NS	NS	20 (60.6)	18 (52.9)	12 (36.4)	15 (44.1)	25 (75.8)	22 (64.7)
	Length NS	Length NS
Leng et al. [10]	Area NS	Area NS	NS	NS	NS	NS	NS	NS	NS	NS
	51.71 ± 9.42	52.77 ± 9.03
Zhao et al. [9]	640.21 ± 377.22	753.44 ± 426.98	NS	NS	5 (41.7)	13 (43.3)	1 (8.3)	7 (23.3)	6 (50.0)	10 (33.3)
	Length NS	Length NS

ECIRS: endoscopic intrarenal surgery; PCNL: percutaneous nephrolithotomy; NS: not specified. mm2; all other units under stone size are in millimetres (mm).