Percutaneous nephrolithotomy in pediatric age group: Assessment of effectiveness and complications

Table 3 Complication rates of mini- percutenous nephrolitotomy accoring to modified clavien classification

Ref.	Year	Renal unit	Overall complication rate (%)	Grade I-II (%)	Grade III (%)	Grade IV-V (%)
Ozden et al[24]	2010	100	25	21	4	-
Resorlu et al[26]	2012	106	17	17	-	-
Yan et al[27]	2012	27	15	15	-	-
Wah et al[28]	2013	23	14	13.6	0.4	-
Onal et al[29]	2013	1205	27.7	23.04	3.46	1.2
Pan et al[42]	2013	59	11.9	11.9	-	-
Elderwy et al[30]	2014	47	10.6	8.5	2.1	-
Desoky et al[31]	2015	22	36.3	22.7	13.6