title: Is double-balloon colonoscopy a better aid to unskilled colonoscopists than conventional colonoscopy?
abstract: OBJECTIVE
  To compare the clinical outcome of double-balloon colonoscopy (DBC) with conventional colonoscopy (CC) for colon evaluation performed by an unskilled colonoscopist.
  
  
  METHODS
  Between June 2008 and November 2008, 1544 colonoscopies were performed in our hospital. Fifty-eight patients, (29 male and 29 female ; 19-86 years; mean age, 63 years) involving 60 intubations, were enrolled in this study and were assigned randomly to the DBC or CC group. One first-year GI fellow was enrolled and performed these 60 consecutive colonoscopies (30 DBCs, 30 CCs). Completion rate of colonoscopy, cecal intubation time, and rate of analgesic agent usage were analyzed.
  
  
  RESULTS
  Completion of DBC was 100% (30/30), while completion of CC was 73% (22/30). There was a statistically significant difference (p < 0.05). The mean cecal intubation time was 36.2 +/- 14.4 minutes (DBC) and 36.5 +/- 15.2 minutes (CC). There was no statistically significant difference. Analgesic agent was used with 19 intubations (63%) (DBC) and with 27 intubations (90%) (CC) (p < 0.05).
  
  
  CONCLUSIONS
  For inexpert endoscopists, using DBC has a higher rate of effectiveness than using CC and can decrease the discomfort of patients during colonoscopic procedures.
authors.affiliation: Department of Gastroenterology, Aso lizuka Hospital, lizuka, 820-8505, Japan. risapear1015@yahoo.co.jp
authors.forename: Risa
authors.initials: R
authors.lastname: Okamoto
authors.forename: Yasuaki
authors.initials: Y
authors.lastname: Motomura
authors.forename: Kazuya
authors.initials: K
authors.lastname: Akahoshi
authors.forename: Yumi
authors.initials: Y
authors.lastname: Kashiwabara
authors.forename: Shingo
authors.initials: S
authors.lastname: Endo
authors.forename: Naomi
authors.initials: N
authors.lastname: Higucchi
authors.forename: Manami
authors.initials: M
authors.lastname: Oda
authors.forename: Masaru
authors.initials: M
authors.lastname: Kubokawa
authors.forename: Noriaki
authors.initials: N
authors.lastname: Matsui
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Nakamura
authors.forename: Ryoichi
authors.initials: R
authors.lastname: Takayanagi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002983:Clinical Competence; D003113:Colonoscopy; D058582:Double-Balloon Enteroscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged