Document Detail

The water method for aiding colonoscope insertion: the learning curve of an experienced colonoscopist.
MedLine Citation:
PMID:  22163078     Owner:  NLM     Status:  Publisher    
BACKGROUND: The water method has promising features for colonoscopy but the learning curve to master the technique is unknown. AIMS: To describe the learning phase, and pitfalls of the water method and its impact on procedural outcomes by an experienced colonoscopist. DESIGN: Review of prospectively collected data in a performance improvement project SETTING: endoscopy Unit at a VA medical center PATIENTS: 200 consecutive veterans undergoing colonoscopy METHODS: An experienced colonoscopist examined 4 consecutive groups of 25 patients each using the water method to define the learning curve. Outcomes were compared to a historical cohort (n=100) examined by the same colonoscopist using usual air insufflation. MAIN OUTCOME MEASURES: Intent-to-treat (ITT) cecal intubation rate. RESULTS: ITT cecal intubation rate increased from 76% (first) to 96% (fourth quartile). Cecal intubation time in the first 2 quartiles was significantly longer (8.9±1.0 and 8.2±0.8 min, respectively) than that in the historical cohort (5.8±0.4 min) but decreased and became comparable to control values in the next 2 quartiles (7.2±0.9 and 6.6±0.6 min, respectively). Overall adenoma detection rate as a group (55%), compared favorably to the historical cohort (46%). CONCLUSIONS: The water method is relatively easy to learn for an experienced colonoscopist. Mastery of the method resulted in cecal intubation rate and overall adenoma detection rate meeting quality performance standards.
Francisco C Ramirez; Felix W Leung
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-1
Journal Detail:
Title:  Journal of interventional gastroenterology     Volume:  1     ISSN:  2154-1299     ISO Abbreviation:  -     Publication Date:  2011 7 
Date Detail:
Created Date:  2011-12-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101530990     Medline TA:  J Interv Gastroenterol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  97-101     Citation Subset:  -    
Mayo Clinic Arizona, Scottsdale, AZ, USA.
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