Efficacy of pancreatoscopy for pancreatic duct stones: A systematic review and meta-analysis

Table 1 Description of 16 studies included in the final analysis

Ref.	Year	Type of study	Center	Mean age (yr)		No. of patients		Males	Females
					Total	EHL	LL	Total	Total
Howell et al[29]	1999	Prospective	Single	62.5	6	6	0	5	1
Hirai et al[28]	2004	Prospective	Single	51.2	17	0	17	9	8
Brauer et al[30]	2007	Prospective	Single	54	27	27	0	12	15
Chen et al[8]	2008	Prospective	Single	--	10	10	0	--	--
Fishman et al[9]	2009	Retrospective	Multi	--	6	6	0	--	--
Maydeo et al[27]	2011	Prospective	Single	--	4	0	4	--	--
Shah et al[26]	2012	Retrospective	Multi	51	28	0	28	--	--
Alatawi et al[31]	2013	Prospective	Single	53.8	5	0	5	4	1
Ito et al[23]	2014	Prospective	Single	--	8	8	0	--	--
Malachias et al[24]	2017	Retrospective	Single	--	19	0	19	13	6
Bekkali et al[7]	2017	Retrospective	Single	45	6	6	0	3	3
Canena et al[20]	2019	Prospective	Multi	--	3	2	1	3	0
Gerges et al[21]	2019	Retrospective	Multi	62.4	20	2	18	11	9
Brewer Gutierrez et al[2]	2019	Retrospective	Multi	54.7	109	59	50	77	32
Ogura et al[25]	2019	Prospective	Single	55	21	21	0	15	6
Han et al[22]	2019	Retrospective	Single	--	94	--	--	--	--

EHL: Electrohydraulic lithotripsy; LL: Laser lithotripsy.