Document Detail

CO(2) insufflation for potentially difficult colonoscopies: efficacy when used by less experienced colonoscopists.
MedLine Citation:
PMID:  19891018     Owner:  NLM     Status:  MEDLINE    
AIM: To clarify the effectiveness of CO(2) insufflation in potentially difficult colonoscopy cases, particularly in relation to the experience level of colonoscopists.
METHODS: One hundred twenty potentially difficult cases were included in this study, which involved females with a low body mass index and patients with earlier abdominal and/or pelvic open surgery or previously diagnosed left-side colon diverticulosis. Patients receiving colonoscopy examinations without sedation using a pediatric variable-stiffness colonoscope were divided into two groups based on either CO(2) or standard air insufflation. Both insufflation procedures were also evaluated according to the experience level of the respective colonoscopists who were divided into an experienced colonoscopist (EC) group and a less experienced colonoscopist (LEC) group. Study measurements included a 100-mm visual analogue scale (VAS) for patient pain during and after colonoscopy examinations, in addition to insertion to the cecum and withdrawal times.
RESULTS: Examination times did not differ, however, VAS scores in the CO(2) group were significantly better than in the air group (P < 0.001, two-way ANOVA) from immediately after the procedure and up to 2 h later. There were no significant differences between either insufflation method in the EC group (P = 0.29), however, VAS scores for CO(2) insufflation were significantly better than air insufflation in the LEC group (P = 0.023) immediately after colonoscopies and up to 4 h afterwards.
CONCLUSION: CO(2) insufflation reduced patient pain after colonoscopy in potentially difficult cases when performed by LECs.
Toshio Uraoka; Jun Kato; Motoaki Kuriyama; Keisuke Hori; Shin Ishikawa; Keita Harada; Koji Takemoto; Sakiko Hiraoka; Hideyuki Fujita; Joichiro Horii; Yutaka Saito; Kazuhide Yamamoto
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  World journal of gastroenterology : WJG     Volume:  15     ISSN:  2219-2840     ISO Abbreviation:  World J. Gastroenterol.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-05     Completed Date:  2010-02-23     Revised Date:  2014-05-20    
Medline Journal Info:
Nlm Unique ID:  100883448     Medline TA:  World J Gastroenterol     Country:  China    
Other Details:
Languages:  eng     Pagination:  5186-92     Citation Subset:  IM    
Copyright Information:
2009 The WJG Press and Baishideng. All rights reserved.
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MeSH Terms
Abdominal Pain / prevention & control
Carbon Dioxide / therapeutic use*
Clinical Competence*
Colonoscopy / adverse effects,  methods*
Insufflation / methods*
Middle Aged
Outcome Assessment (Health Care)
Pain Measurement
Prospective Studies
Treatment Outcome
Reg. No./Substance:
142M471B3J/Carbon Dioxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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