Title
Renewed attention for overtube-assisted colonoscopy to prevent incomplete endoscopic examination of the colon Renewed attention for overtube-assisted colonoscopy to prevent incomplete endoscopic examination of the colon
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Philadelphia, Pa ,
Subject
Human medicine
Source (journal)
Diseases of the colon & rectum. - Philadelphia, Pa, 1958, currens
Volume/pages
56(2013) :8 , p. 1013-1018
ISSN
0012-3706
ISI
000322005700022
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
BACKGROUND: Colonoscopy is the standard examination to detect mucosal pathology in the colon. However, failure to complete colonoscopy may reach more than 10% in population-based endoscopy practices. The reasons for incomplete conventional colonoscopy are diverse and result in missed diagnosis of colonic polyps and carcinoma. OBJECTIVE: Recent endoscopic developments have shown that the use of specialized overtubes may help to reach the cecum in the case of a difficult colonoscopy, even with less discomfort. Several types of overtubes are currently available, whereas other types are being developed and clinically evaluated. The current review highlights the development of overtubes for colonoscopy and the available clinical data on overtube-assisted colonoscopy in the case of incomplete conventional colonoscopy. DATA SOURCES: Data were derived from a PubMed search through November 2012. STUDY SELECTION: Available clinical literature data on recent developments in overtube-assisted colonoscopy were studied. INTERVENTION: A descriptive comparison was made of currently available endoscopy systems used for overtube-assisted colonoscopy. MAIN OUTCOME MEASURES: The primary outcomes measured were the feasibility and safety of different endoscopy systems to perform overtube-assisted colonoscopy. RESULTS: Several overtube-assisted colonoscopy systems have recently been developed to complete colonoscopy in the case of difficult conventional colonoscopy. Literature data show excellent feasibility to reach the cecum with very low complication rates and good patient tolerance for the different overtube systems. LIMITATIONS: The majority of available studies are uncontrolled case series describing 7 to 110 patients undergoing overtube-assisted colonoscopy with only 1 direct comparison between 2 overtube systems. CONCLUSIONS: Overtube-assisted colonoscopy has been shown to be useful in performing colonoscopy by increasing the cecal intubation rate and patient tolerance and by decreasing the need for sedation. There is no standardized superior overtube system at this moment.
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