title: Adult colonoscopy or single-balloon enteroscopy-assisted ERCP in long-limb surgical bypass patients.
abstract: OBJECTIVE
  The aim of this study was to evaluate the usefulness of adult colonoscopy or single-balloon enteroscopy (SBE)-assisted endoscopic retrograde cholangiopancreatography (ERCP) in long-limb surgical bypass patients.
  
  
  METHODS
  Retrospective analysis of 16 patients with long-limb surgical bypasses who underwent therapeutic ERCP because of suspected pancreaticobiliary diseases. Small-bowel intubation was performed by peroral adult colonoscopy or SBE. If colonoscopy success was achieved, ERCP was performed subsequently. But in patients using SBE, a small-caliber colonoscope would be used to replace enteroscope if the SBE success was achieved. ERCP was then performed with the conventional accessories.
  
  
  RESULTS
  A total of 21 ERCP procedures were performed. Adult colonoscope was used for ERCP in 8 patients with standard Whipple resection consecutively. Colonoscopy success was achieved in 8 of 8 patients (100%), of whom 7 of 8 (87.5%) achieved ERCP success. SBE-assisted ERCP was attempted in other 8 patients with different types of Roux-en-Y anatomy. SBE success was achieved in 7 of 8 patients (87.5%), of whom 4 of 7 (57.1%) achieved ERCP success. The overall success rate of endoscopy and ERCP was 93.8% (15/16) and 68.8% (11/16), respectively.
  
  
  CONCLUSIONS
  Adult colonoscopy has high success rate for performing ERCP after Whipple resection and should be selected for such patient preferentially. By using the facilitated method for endoscopic interventions at pancreaticobiliary disease after Roux-en-Y reconstruction, SBE-assisted ERCP can be attempted when it is difficult to gain access to the papilla of Vater or bilioenteric/pancreaticoenteric anastomosis and long length ERCP accessories cannot be available.
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Haidian District, 100191 Beijing, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Li
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Haidian District, 100191 Beijing, China. Electronic address: huangyonghui@medmail.com.cn.
authors.forename: Yong-Hui
authors.initials: YH
authors.lastname: Huang
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Haidian District, 100191 Beijing, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Yao
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Haidian District, 100191 Beijing, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Chang
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Haidian District, 100191 Beijing, China.
authors.forename: Xue-Biao
authors.initials: XB
authors.lastname: Huang
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Haidian District, 100191 Beijing, China.
authors.forename: Yao-Peng
authors.initials: YP
authors.lastname: Zhang
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, 49 North Garden Road, Haidian District, 100191 Beijing, China.
authors.forename: Zhi-Qiang
authors.initials: ZQ
authors.lastname: Song
mesh_terms: D000328:Adult; D000368:Aged; D000713:Anastomosis, Roux-en-Y; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000295:instrumentation* / Q000379:methods*; D003113:Colonoscopy; D016099:Endoscopy, Gastrointestinal / Q000295:instrumentation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies