{"id":"https://openalex.org/W7220864683","doi":"https://doi.org/10.1136/bmjopen-2026-124622","title":"Short-term prophylactic biliary stenting after complete common bile duct stone removal to prevent post-ERCP cholangitis in Japan (STEP-ERCP study): study protocol for a confirmatory multicentre randomised controlled trial","display_name":"Short-term prophylactic biliary stenting after complete common bile duct stone removal to prevent post-ERCP cholangitis in Japan (STEP-ERCP study): study protocol for a confirmatory multicentre randomised controlled trial","publication_year":2026,"publication_date":"2026-10-01","ids":{"openalex":"https://openalex.org/W7220864683","doi":"https://doi.org/10.1136/bmjopen-2026-124622","pmid":"https://pubmed.ncbi.nlm.nih.gov/42843885","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/13646921"},"language":"en","primary_location":{"id":"doi:10.1136/bmjopen-2026-124622","doi":"https://doi.org/10.1136/bmjopen-2026-124622","is_oa":true,"landing_page_url":"https://doi.org/10.1136/bmjopen-2026-124622","pdf_url":"https://bmjopen.bmj.com/content/bmjopen/16/10/e124622.full.pdf","source":{"id":"https://openalex.org/S79054089","display_name":"BMJ Open","issn_l":"2044-6055","issn":["2044-6055"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-d","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319945","host_organization_name":"BMJ","host_organization_lineage":["https://openalex.org/P4310319945"],"host_organization_lineage_names":["BMJ"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMJ Open","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://bmjopen.bmj.com/content/bmjopen/16/10/e124622.full.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5014708941","display_name":"Sho Hasegawa","orcid":"https://orcid.org/0000-0002-1671-0643","observed_orcids":["https://orcid.org/0000-0002-1671-0643"]},"institutions":[{"id":"https://openalex.org/I4210099218","display_name":"Yokohama City University Hospital","ror":"https://ror.org/010hfy465","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099218"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Sho Hasegawa","raw_affiliation_strings":["Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan"],"raw_orcid":"https://orcid.org/0000-0002-1671-0643","affiliations":[{"raw_affiliation_string":"Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210099218"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080519941","display_name":"Yoshihide Kanno","orcid":"https://orcid.org/0000-0002-2044-5483","observed_orcids":["https://orcid.org/0000-0002-2044-5483"]},"institutions":[{"id":"https://openalex.org/I4210116024","display_name":"Sendai Medical Center","ror":"https://ror.org/02cq51909","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210116024","https://openalex.org/I4210137409"]},{"id":"https://openalex.org/I4405283872","display_name":"Sendai City Medical Center","ror":"https://ror.org/02ejx0c73","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405283872"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yoshihide Kanno","raw_affiliation_strings":["Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan","institution_ids":["https://openalex.org/I4210116024","https://openalex.org/I4405283872"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035882363","display_name":"Satoru Shinoda","orcid":"https://orcid.org/0000-0003-0651-438X","observed_orcids":["https://orcid.org/0000-0003-0651-438X"]},"institutions":[{"id":"https://openalex.org/I89630735","display_name":"Yokohama City University","ror":"https://ror.org/0135d1r83","country_code":"JP","type":"education","lineage":["https://openalex.org/I89630735"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Satoru Shinoda","raw_affiliation_strings":["Department of Biostatistics, Yokohama City University, Yokohama, Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biostatistics, Yokohama City University, Yokohama, Kanagawa, Japan","institution_ids":["https://openalex.org/I89630735"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001424033","display_name":"Shinichi Nihei","orcid":"https://orcid.org/0009-0000-6245-679X","observed_orcids":["https://orcid.org/0009-0000-6245-679X"]},"institutions":[{"id":"https://openalex.org/I4210137409","display_name":"National Hospital Organization","ror":"https://ror.org/03ntccx93","country_code":"JP","type":"government","lineage":["https://openalex.org/I4210137409"]},{"id":"https://openalex.org/I4405283918","display_name":"National Hospital Organization Yokohama Medical Center","ror":"https://ror.org/02h7rhs19","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210137409","https://openalex.org/I4405283918"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shinichi Nihei","raw_affiliation_strings":["Department of Gastroenterology, National Hospital Organization Yokohama Medical, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology, National Hospital Organization Yokohama Medical, Yokohama, Japan","institution_ids":["https://openalex.org/I4210137409","https://openalex.org/I4405283918"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080988915","display_name":"Yusuke Sekino","orcid":"https://orcid.org/0000-0002-9728-3961","observed_orcids":["https://orcid.org/0000-0002-9728-3961"]},"institutions":[{"id":"https://openalex.org/I4210131967","display_name":"Yokohama Rosai Hospital","ror":"https://ror.org/03na8p459","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210131967"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusuke Sekino","raw_affiliation_strings":["Department of Gastroenterology, Yokohama Rosai Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology, Yokohama Rosai Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210131967"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101418592","display_name":"Yuji Fujita","orcid":"https://orcid.org/0000-0003-3297-3520","observed_orcids":["https://orcid.org/0000-0003-3297-3520"]},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]},{"id":"https://openalex.org/I2801547476","display_name":"NTT Medical Center","ror":"https://ror.org/0285prp25","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I2801547476"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuji Fujita","raw_affiliation_strings":["Department of Hepato-Biliary-Pancreatic Medicine, NTT Medical Center Tokyo, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Hepato-Biliary-Pancreatic Medicine, NTT Medical Center Tokyo, Tokyo, Japan","institution_ids":["https://openalex.org/I2251713219","https://openalex.org/I2801547476"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084903623","display_name":"Kunihiro Hosono","orcid":"https://orcid.org/0000-0001-6901-4601","observed_orcids":["https://orcid.org/0000-0001-6901-4601"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Kunihiro Hosono","raw_affiliation_strings":["Department of Gastroenterology, Yokosuka General Medical Center, Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology, Yokosuka General Medical Center, Kanagawa, Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066518681","display_name":"\u4f50\u85e4\u9ad8\u5149","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405255602","display_name":"Chigasaki Municipal Hospital","ror":"https://ror.org/036vh1t90","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405255602"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takamitsu Sato","raw_affiliation_strings":["Department of Gastroenterology, Chigasaki Municipal Hospital, Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology, Chigasaki Municipal Hospital, Kanagawa, Japan","institution_ids":["https://openalex.org/I4405255602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5157813082","display_name":"Yasunari Sakamoto","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210139667","display_name":"International University Of Health And Welfare Atami Hospital","ror":"https://ror.org/04gr92547","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210139667"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yasunari Sakamoto","raw_affiliation_strings":["Department of Gastroenterology and Hepatology, International University of Health and Welfare Atami Hospital, Shizuoka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology and Hepatology, International University of Health and Welfare Atami Hospital, Shizuoka, Japan","institution_ids":["https://openalex.org/I4210139667"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071808903","display_name":"Takaomi Kessoku","orcid":"https://orcid.org/0000-0002-5587-1386","observed_orcids":["https://orcid.org/0000-0002-5587-1386"]},"institutions":[{"id":"https://openalex.org/I4405284280","display_name":"International University of Health and Welfare Narita Hospital","ror":"https://ror.org/03979n059","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405284280"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takaomi Kessoku","raw_affiliation_strings":["Department of Palliative Medicine, International University of Health and Welfare Narita Hospital, Chiba, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Palliative Medicine, International University of Health and Welfare Narita Hospital, Chiba, Japan","institution_ids":["https://openalex.org/I4405284280"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112186760","display_name":"Akito Iwasaki","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210158095","display_name":"Yokohama Sakae Kyosai Hospital","ror":"https://ror.org/05hgzy544","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210158095"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Akito Iwasaki","raw_affiliation_strings":["Department of Gastroenterology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210158095"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5114043758","display_name":"Takuya Takayanagi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405283210","display_name":"Omori Red Cross Hospital","ror":"https://ror.org/017wcn149","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I2799517759","https://openalex.org/I4405283210"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takuya Takayanagi","raw_affiliation_strings":["Department of Gastroenterology, Omori Red Cross Hospital, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology, Omori Red Cross Hospital, Tokyo, Japan","institution_ids":["https://openalex.org/I4405283210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046384417","display_name":"Tomoki Ogata","orcid":"https://orcid.org/0009-0002-2953-2142","observed_orcids":["https://orcid.org/0009-0002-2953-2142"]},"institutions":[{"id":"https://openalex.org/I4405284280","display_name":"International University of Health and Welfare Narita Hospital","ror":"https://ror.org/03979n059","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405284280"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tomoki Ogata","raw_affiliation_strings":["Department of Gastroenterology, International University of Health and Welfare Narita Hospital, Chiba, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Gastroenterology, International University of Health and Welfare Narita Hospital, Chiba, Japan","institution_ids":["https://openalex.org/I4405284280"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084245729","display_name":"Yu Honda","orcid":"https://orcid.org/0000-0001-5539-9811","observed_orcids":["https://orcid.org/0000-0001-5539-9811"]},"institutions":[{"id":"https://openalex.org/I4210099218","display_name":"Yokohama City University Hospital","ror":"https://ror.org/010hfy465","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099218"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yu Honda","raw_affiliation_strings":["Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210099218"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129874561","display_name":"Takayuki Oda","orcid":"https://orcid.org/0009-0006-2382-9286","observed_orcids":["https://orcid.org/0009-0006-2382-9286"]},"institutions":[{"id":"https://openalex.org/I4210099218","display_name":"Yokohama City University Hospital","ror":"https://ror.org/010hfy465","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099218"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takayuki Oda","raw_affiliation_strings":["Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan"],"raw_orcid":"https://orcid.org/0009-0006-2382-9286","affiliations":[{"raw_affiliation_string":"Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210099218"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058965892","display_name":"Takeshi Iizuka","orcid":"https://orcid.org/0009-0001-2230-0333","observed_orcids":["https://orcid.org/0009-0001-2230-0333"]},"institutions":[{"id":"https://openalex.org/I4210099218","display_name":"Yokohama City University Hospital","ror":"https://ror.org/010hfy465","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099218"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takeshi Iizuka","raw_affiliation_strings":["Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210099218"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014614800","display_name":"Shin Yagi","orcid":"https://orcid.org/0000-0002-7722-5262","observed_orcids":["https://orcid.org/0000-0002-7722-5262"]},"institutions":[{"id":"https://openalex.org/I4210099218","display_name":"Yokohama City University Hospital","ror":"https://ror.org/010hfy465","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099218"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shin Yagi","raw_affiliation_strings":["Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210099218"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047344052","display_name":"Yusuke Kurita","orcid":"https://orcid.org/0000-0003-2482-6707","observed_orcids":["https://orcid.org/0000-0003-2482-6707"]},"institutions":[{"id":"https://openalex.org/I4210099218","display_name":"Yokohama City University Hospital","ror":"https://ror.org/010hfy465","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099218"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusuke Kurita","raw_affiliation_strings":["Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210099218"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042269542","display_name":"Kensuke Kubota","orcid":"https://orcid.org/0000-0001-6767-0410","observed_orcids":["https://orcid.org/0000-0001-6767-0410"]},"institutions":[{"id":"https://openalex.org/I4210099218","display_name":"Yokohama City University Hospital","ror":"https://ror.org/010hfy465","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099218"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kensuke Kubota","raw_affiliation_strings":["Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210099218"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029497173","display_name":"Masato Yoneda","orcid":"https://orcid.org/0000-0001-7815-549X","observed_orcids":["https://orcid.org/0000-0001-7815-549X","https://orcid.org/0009-0002-2342-1871"]},"institutions":[{"id":"https://openalex.org/I4210099218","display_name":"Yokohama City University Hospital","ror":"https://ror.org/010hfy465","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099218"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masato Yoneda","raw_affiliation_strings":["Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Gastroenterology and Hepatology, Yokohama City University Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210099218"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":14,"corresponding_author_ids":["https://openalex.org/A5014708941"],"corresponding_institution_ids":["https://openalex.org/I4210099218"],"apc_list":{"value":1500,"currency":"GBP","value_usd":1839},"apc_paid":{"value":1500,"currency":"GBP","value_usd":1839},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.76992201,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"16","issue":"10","first_page":"e124622","last_page":"e124622"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10518","display_name":"Gallbladder and Bile Duct Disorders","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10518","display_name":"Gallbladder and Bile Duct Disorders","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10606","display_name":"Kidney Stones and Urolithiasis Treatments","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2748","display_name":"Urology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13697","display_name":"Biliary and Gastrointestinal Fistulas","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/post-ercp-cholangitis","display_name":"post-ERCP cholangitis","score":0.9750000238418579},{"id":"https://openalex.org/keywords/choledocholithiasis","display_name":"choledocholithiasis","score":0.9459999799728394},{"id":"https://openalex.org/keywords/endoscopic-retrograde-cholangiopancreatography","display_name":"endoscopic retrograde cholangiopancreatography","score":0.9120000004768372},{"id":"https://openalex.org/keywords/biliary-obstruction","display_name":"biliary obstruction","score":0.7080000042915344},{"id":"https://openalex.org/keywords/cholangitis-prevention","display_name":"cholangitis prevention","score":0.6629999876022339},{"id":"https://openalex.org/keywords/antibiotic-use","display_name":"antibiotic use","score":0.5139999985694885}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.978600025177002},{"id":"https://openalex.org/C2778444009","wikidata":"https://www.wikidata.org/wiki/Q637883","display_name":"Endoscopic retrograde cholangiopancreatography","level":3,"score":0.7825000286102295},{"id":"https://openalex.org/C2776884468","wikidata":"https://www.wikidata.org/wiki/Q1263617","display_name":"Common bile duct","level":2,"score":0.608299970626831},{"id":"https://openalex.org/C2780615123","wikidata":"https://www.wikidata.org/wiki/Q1058608","display_name":"Primary sclerosing cholangitis","level":3,"score":0.5626000165939331},{"id":"https://openalex.org/C168563851","wikidata":"https://www.wikidata.org/wiki/Q1436668","display_name":"Randomized controlled trial","level":2,"score":0.5403000116348267},{"id":"https://openalex.org/C203092338","wikidata":"https://www.wikidata.org/wiki/Q1340863","display_name":"Clinical endpoint","level":3,"score":0.5329999923706055},{"id":"https://openalex.org/C2993327771","wikidata":"https://www.wikidata.org/wiki/Q851111","display_name":"Biliary stent","level":3,"score":0.5202000141143799},{"id":"https://openalex.org/C2775982439","wikidata":"https://www.wikidata.org/wiki/Q3562150","display_name":"Biliary tract","level":2,"score":0.5034000277519226},{"id":"https://openalex.org/C2778583881","wikidata":"https://www.wikidata.org/wiki/Q1325542","display_name":"Stent","level":2,"score":0.4747999906539917},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.43309998512268066},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.4230000078678131},{"id":"https://openalex.org/C2779777945","wikidata":"https://www.wikidata.org/wiki/Q851111","display_name":"Bile duct","level":2,"score":0.40860000252723694},{"id":"https://openalex.org/C61511704","wikidata":"https://www.wikidata.org/wiki/Q1671857","display_name":"Incidence (geometry)","level":2,"score":0.39980000257492065},{"id":"https://openalex.org/C90924648","wikidata":"https://www.wikidata.org/wiki/Q120569","display_name":"Gastroenterology","level":1,"score":0.3772999942302704},{"id":"https://openalex.org/C202953159","wikidata":"https://www.wikidata.org/wiki/Q382695","display_name":"Intention-to-treat analysis","level":3,"score":0.36899998784065247},{"id":"https://openalex.org/C197934379","wikidata":"https://www.wikidata.org/wiki/Q2047938","display_name":"Adverse effect","level":2,"score":0.35040000081062317},{"id":"https://openalex.org/C167135981","wikidata":"https://www.wikidata.org/wiki/Q2146302","display_name":"Retrospective cohort study","level":2,"score":0.326200008392334},{"id":"https://openalex.org/C2780603604","wikidata":"https://www.wikidata.org/wiki/Q21281037","display_name":"Biliary disease","level":2,"score":0.2856999933719635},{"id":"https://openalex.org/C2779388726","wikidata":"https://www.wikidata.org/wiki/Q272714","display_name":"Gallstones","level":2,"score":0.28060001134872437},{"id":"https://openalex.org/C2777002071","wikidata":"https://www.wikidata.org/wiki/Q2933693","display_name":"Hepatolithiasis","level":4,"score":0.27799999713897705},{"id":"https://openalex.org/C2911094522","wikidata":"https://www.wikidata.org/wiki/Q851111","display_name":"Biliary Tract Surgical Procedures","level":3,"score":0.2743000090122223},{"id":"https://openalex.org/C2780740041","wikidata":"https://www.wikidata.org/wiki/Q9290860","display_name":"Common bile duct stone","level":3,"score":0.26840001344680786},{"id":"https://openalex.org/C2778456037","wikidata":"https://www.wikidata.org/wiki/Q133244","display_name":"Jaundice","level":2,"score":0.26089999079704285},{"id":"https://openalex.org/C61434518","wikidata":"https://www.wikidata.org/wiki/Q932510","display_name":"General surgery","level":1,"score":0.25519999861717224}],"mesh":[{"descriptor_ui":"D000074099","descriptor_name":"Equivalence Trials as Topic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002760","descriptor_name":"Cholangiopancreatography, Endoscopic Retrograde","qualifier_ui":"Q000009","qualifier_name":"adverse effects","is_major_topic":true},{"descriptor_ui":"D002761","descriptor_name":"Cholangitis","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":true},{"descriptor_ui":"D002761","descriptor_name":"Cholangitis","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":true},{"descriptor_ui":"D002761","descriptor_name":"Cholangitis","qualifier_ui":"Q000517","qualifier_name":"prevention & control","is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007564","descriptor_name":"Japan","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011183","descriptor_name":"Postoperative Complications","qualifier_ui":"Q000517","qualifier_name":"prevention & control","is_major_topic":true},{"descriptor_ui":"D011446","descriptor_name":"Prospective Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015337","descriptor_name":"Multicenter Studies as Topic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015607","descriptor_name":"Stents","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D016032","descriptor_name":"Randomized Controlled Trials as Topic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D042882","descriptor_name":"Gallstones","qualifier_ui":"Q000601","qualifier_name":"surgery","is_major_topic":true}],"locations_count":4,"locations":[{"id":"doi:10.1136/bmjopen-2026-124622","doi":"https://doi.org/10.1136/bmjopen-2026-124622","is_oa":true,"landing_page_url":"https://doi.org/10.1136/bmjopen-2026-124622","pdf_url":"https://bmjopen.bmj.com/content/bmjopen/16/10/e124622.full.pdf","source":{"id":"https://openalex.org/S79054089","display_name":"BMJ Open","issn_l":"2044-6055","issn":["2044-6055"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-d","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319945","host_organization_name":"BMJ","host_organization_lineage":["https://openalex.org/P4310319945"],"host_organization_lineage_names":["BMJ"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMJ Open","raw_type":"journal-article"},{"id":"pmh:oai:pubmedcentral.nih.gov:13646921","doi":null,"is_oa":true,"landing_page_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC13646921/","pdf_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC13646921/pdf/bmjopen-16-10.pdf","source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMJ Open","raw_type":"Text"},{"id":"pmid:42843885","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/42843885","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMJ open","raw_type":"Journal Article"},{"id":"pmh:oai:doaj.org/article:778e5d7719c24d85981664b828c6883e","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/778e5d7719c24d85981664b828c6883e","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"BMJ Open, Vol 16, Iss 10 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1136/bmjopen-2026-124622","doi":"https://doi.org/10.1136/bmjopen-2026-124622","is_oa":true,"landing_page_url":"https://doi.org/10.1136/bmjopen-2026-124622","pdf_url":"https://bmjopen.bmj.com/content/bmjopen/16/10/e124622.full.pdf","source":{"id":"https://openalex.org/S79054089","display_name":"BMJ Open","issn_l":"2044-6055","issn":["2044-6055"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-d","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319945","host_organization_name":"BMJ","host_organization_lineage":["https://openalex.org/P4310319945"],"host_organization_lineage_names":["BMJ"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMJ Open","raw_type":"journal-article"},"sustainable_development_goals":[{"score":1.0,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/study-protocol","display_name":"Study Protocol"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7220864683.pdf","grobid_xml":"https://content.openalex.org/works/W7220864683.grobid-xml"},"referenced_works_count":17,"referenced_works":["https://openalex.org/W2022685477","https://openalex.org/W2029315750","https://openalex.org/W2089115083","https://openalex.org/W2093467790","https://openalex.org/W2512631225","https://openalex.org/W2582313049","https://openalex.org/W2757711965","https://openalex.org/W2810577708","https://openalex.org/W2929552226","https://openalex.org/W2937470841","https://openalex.org/W2969218362","https://openalex.org/W2996748935","https://openalex.org/W3080124271","https://openalex.org/W4240528708","https://openalex.org/W4292528167","https://openalex.org/W4384407213","https://openalex.org/W4413447017"],"related_works":["https://openalex.org/W3034169937","https://openalex.org/W7144250931","https://openalex.org/W7168187279","https://openalex.org/W3080124271","https://openalex.org/W4413447017","https://openalex.org/W4229038763","https://openalex.org/W4413762963","https://openalex.org/W4395079766","https://openalex.org/W3208969214","https://openalex.org/W2969218362"],"abstract_inverted_index":{"INTRODUCTION:":[0],"Endoscopic":[1],"retrograde":[2],"cholangiopancreatography":[3],"(ERCP)":[4],"is":[5,73,82,118,195],"the":[6,35,86,102,142,196,265,270,288],"standard":[7],"treatment":[8],"for":[9,131,214,273],"common":[10,97,132],"bile":[11,62,98,133],"duct":[12,99,134],"stones.":[13],"Although":[14],"complete":[15,45,94,148],"stone":[16,46,149,185],"removal":[17,95],"can":[18],"be":[19,152,156,178,252,260,304,315,322],"achieved":[20],"in":[21,28,34,159,262,281],"most":[22],"cases,":[23],"post-ERCP":[24,50,105,199,215],"cholangitis":[25,51,106,140,200,220,224],"still":[26],"occurs":[27],"a":[29,119,160,168],"subset":[30],"of":[31,37,96,104,138,144,198,248,267,292],"patients,":[32],"even":[33],"absence":[36],"preprocedural":[38],"cholangitis.":[39],"Temporary":[40],"prophylactic":[41,90,164],"biliary":[42,55,66,91,110,165,171,232],"stenting":[43,92,166],"after":[44,93,204,244],"extraction":[47],"may":[48],"reduce":[49],"by":[52,58,180,287],"preventing":[53],"transient":[54],"obstruction":[56],"caused":[57],"papillary":[59],"oedema,":[60],"impaired":[61],"drainage":[63],"or":[64,173,231,239],"residual":[65],"sludge.":[67],"However,":[68],"evidence":[69,137],"supporting":[70],"this":[71],"strategy":[72],"currently":[74],"limited":[75],"to":[76,84,163,223],"retrospective":[77],"studies.":[78],"The":[79,115,192,257],"STEP-ERCP":[80,116],"study":[81,117,258,283,310],"designed":[83],"test":[85],"hypothesis":[87],"that":[88],"short-term":[89],"stones":[100,135],"reduces":[101],"incidence":[103,197],"compared":[107],"with":[108,264],"no":[109,174],"stenting.":[111,175],"METHODS":[112],"AND":[113,255],"ANALYSIS:":[114],"multicentre,":[120],"prospective,":[121],"open-label,":[122],"randomised":[123],"controlled":[124],"superiority":[125],"trial.":[126],"Adult":[127],"patients":[128],"undergoing":[129],"ERCP":[130,145,230],"without":[136],"acute":[139],"at":[141],"time":[143,222],"and":[146,183,237,269,275,327],"achieving":[147],"clearance":[150],"will":[151,155,177,251,259,303,314,321],"enrolled.":[153,253],"Participants":[154],"randomly":[157],"assigned":[158],"1:1":[161],"ratio":[162],"using":[167,207],"spontaneous":[169],"dislodgement":[170],"stent":[172],"Randomisation":[176],"stratified":[179],"participating":[181,307],"institution":[182],"maximum":[184],"diameter":[186],"(<10":[187],"mm":[188],"vs":[189],"\u226510":[190],"mm).":[191],"primary":[193],"endpoint":[194],"within":[201,241],"7":[202],"days":[203,243],"ERCP,":[205],"diagnosed":[206],"modified":[208],"Tokyo":[209],"Guidelines":[210,272],"2018":[211],"criteria":[212],"adapted":[213],"conditions.":[216],"Secondary":[217],"endpoints":[218],"include":[219],"severity,":[221],"onset,":[225],"therapeutic":[226],"antibiotic":[227],"use,":[228],"repeat":[229],"drainage,":[233],"ERCP-related":[234],"adverse":[235],"events":[236],"revisit":[238],"readmission":[240],"30":[242],"ERCP.":[245],"A":[246],"total":[247],"186":[249],"participants":[250],"ETHICS":[254],"DISSEMINATION:":[256],"conducted":[261],"accordance":[263],"Declaration":[266],"Helsinki":[268],"Ethical":[271],"Medical":[274],"Health":[276],"Research":[277],"Involving":[278],"Human":[279],"Subjects":[280],"Japan.The":[282],"protocol":[284],"was":[285],"approved":[286],"Institutional":[289],"Review":[290],"Board":[291],"Yokohama":[293],"City":[294],"University":[295],"Hospital":[296],"on":[297],"11":[298],"May":[299],"2026.":[300],"Additional":[301],"approval":[302],"obtained":[305,316],"from":[306,317],"institutions":[308],"before":[309],"initiation.Written":[311],"informed":[312],"consent":[313],"all":[318],"participants.Study":[319],"findings":[320],"disseminated":[323],"through":[324],"peer-reviewed":[325],"publications":[326],"scientific":[328],"conferences.":[329],"TRIAL":[330],"REGISTRATION":[331],"NUMBER:":[332],"jRCT1032260128.":[333]},"counts_by_year":[],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2026-10-08T00:00:00"}
