Endoscopic papillary large balloon dilation for the removal of bile duct stones

Table 5 Baseline clinical characteristics of the patients on endoscopic papillary large balloon dilation without endoscopic sphincterotomy n (%)

Ref.	Study design	No. ofprocedures	Mean age, yr	No. of periampullary diverticulum	Mean size of largest stone, mm	Range of stone size, mm	Altered anatomy
Jeong et al[51]	R	38	68	NA	17.7	12-31	0
Hwang et al[45]	R	62	70.4	16 (25.8)	15.7	12-26	0
Park et al[43]	R	313	72.6	106 (34.6)	15.0	10-37	B-II:11
Total		413	71.81	122 (33.2)	15.42	10-37	11 (2.7)

¹Calculated by dividing total number of procedures into total number of the parameter which was calculated by multiplying each mean value with each number of procedures;

²A retrospective multicenter study where missing data are present in each analyzed variable. R: Retrospective; B-II: Billroth-II anastomosis.