Meta-Analysis
Copyright ©The Author(s) 2015.
World J Gastroenterol. Jun 28, 2015; 21(24): 7577-7583
Published online Jun 28, 2015. doi: 10.3748/wjg.v21.i24.7577
Table 1 Characteristics of the included studies
Ref.TypeStudy typeInterventionStentPatientsn (stent)n (control)
Smithline et al[16], 1993ArticleRCTBiliary ES5-7F, 2-2.5 cmSOD4350
Sherman et al[17], 1996AbstractRCTPrecut biliary ES5-7F, 2-2.5 cm4658
Tarnasky et al[12], 1998ArticleRCTBiliary ES5-7F, 2-2.5 cmSOD4139
Tarnasky et al[12], 1998AbstractRCTBiliary ES5F, 2 cm3638
Patel et al[18], 1999AbstractRCTPancreatic ES5-7F, 2-2.5 cmSOD1818
Fazel et al[19], 2003ArticleRCTERCP5F, 2 cmDifficult cannulation3836
Harewood et al[20], 2005ArticleRCTEndoscopic ampullectomy5F, 3-5 cmAmpullary adenoma118
Sofuni et al[21], 2007ArticleRCTERCP, etc.5F, 3 cmVarious98103
Tsuchiya et al[22], 2007ArticleRCTERCP, etc.5F, 3-4 cmVarious3232
Ito et al[23], 2010ArticleRCTES, IDUS5F, 4 cmWith high-risk factors3535
Pan et al[24], 2011ArticleRCTERCP5FWith high-risk factors2020
Sofuni et al[25], 2011ArticleRCTERCP, etc.5F, 3 cmWith high-risk factors213213
Kawaguchi et al[26], 2012ArticleRCTERCP, ES, IDUS5F, 3 cmWith high-risk factors6060
Cha et al[27], 2012ArticleRCTES5-7F, 2-2.5 cmDifficult cannulation4658
Lee et al[28], 2012ArticleRCTES, IDUS, etc.3, 4, 6, 8FDifficult cannulation5051