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The impact of advances in instrumentation and techniques of colonoscopy from 1988 to 2008 on inpatient colonoscopy performance at a high volume endoscopy unit in the United States: significantly shorter procedure time, higher completion rate, performance on sicker inpatients, and near disappearance of flexible sigmoidoscopy.
MedLine Citation:
PMID:  20401535     Owner:  NLM     Status:  In-Process    
BACKGROUND AND AIMS: Colonoscopy instrumentation and technique have improved from 1988 to 2008. We analyze whether these improvements have resulted in improved colonoscopy performance.
METHODS: This was a retrospective study of 50 consecutive inpatients in 1988 vs. 1998 vs. 2008 undergoing intended colonoscopy at a teaching hospital. Patient APACHE score, cecal and terminal ileal intubation rates, procedure time, and colonoscopic diagnoses were compared for the three different years.
RESULTS: Changes in practice of inpatient colonoscopy in 2008 from 1988 include (1) remarkably sicker inpatients undergoing colonoscopy in 2008, as indicated by: significantly higher mean APACHE II score (11.0 ± 6.6 vs. 5.9 ± 4.1, P < 0.00001), significantly more frequent monitored bed status (58% vs. 10%, OR = 12.4; 95%-ORCI: 4.31-35.4, P < 0.00001), and significantly higher rates of several chronic diseases (e.g. CHF, 24% vs. 6%, P = 0.02); (2) significantly higher colonoscopy completion rate in 2008 (88% vs. 64%; OR = 4.13, 95%-ORCI: 1.51-11.2, P = 0.009); (3) significantly higher terminal ileum intubation rate in 2008 (44% vs. 14%, OR = 4.83, 95%-ORCI: 1.85-12.5, P = 0.002); and (4) significantly shorter mean procedure time in 2008 (26.3 ± 7.9 min vs. 48.0 ± 20.3 min, P < 0.00001). The ratio of intended colonoscopy/flexible sigmoidoscopy was significantly higher in 2008 vs. 1988 (OR = 7.50, 95%-ORCI: 2.56-21.8, P < 0.00001). Internal hemorrhoids were significantly more frequently diagnosed by colonoscopy in 2008 (44% vs. 12%, OR = 5.76, 95%-ORCI: 2.12-15.5, P = 0.001), attributed to increased rectal retroflexion.
CONCLUSIONS: Due to improved instrumentation and technique, colonoscopy has dramatically changed from 1988 to become a clinically more valuable test in 2008 as manifested by a higher completion rate, greater clinical applicability, and shorter procedure time. Colonoscopy is supplanting flexible sigmoidoscopy.
Mitchell S Cappell; Rami Abboud
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Publication Detail:
Type:  Journal Article     Date:  2010-04-17
Journal Detail:
Title:  Digestive diseases and sciences     Volume:  55     ISSN:  1573-2568     ISO Abbreviation:  Dig. Dis. Sci.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7902782     Medline TA:  Dig Dis Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3521-9     Citation Subset:  AIM; IM    
Division of Gastroenterology, Department of Medicine, William Beaumont Hospital, MOB 233, 3535 W Thirteen Mile Road, Royal Oak, MI 48073, USA.
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