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Colonic work-up after incomplete colonoscopy: significant new findings during follow-up.
MedLine Citation:
PMID:  20669092     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND AND STUDY AIMS: Cecal intubation is not achieved in 2 - 23 % of colonoscopies. The efforts made by physicians to visualize the remaining colon and the number of missed significant lesions are unknown. This study evaluates 1) the reasons for incomplete colonoscopy, 2) the rates of complete colonic evaluation after incomplete colonoscopy, and 3) the number of (pre-) malignant lesions missed by incomplete colonoscopy. PATIENTS AND METHODS: In this population-based cohort study index colonoscopies were performed between September and December 2005. Prospectively collected data from consecutive patients with an incomplete colonoscopy were analyzed. For up to 18 months after the index colonoscopy, any further examinations performed in these patients were identified retrospectively. These secondary examinations included: repeat colonoscopy, computed tomography (CT) colonography, barium enema, abdominal CT scan, and surgery involving the colorectum. RESULTS: Of 5278 colonoscopies, 511 were incomplete (9.7 %). The most frequent causes of incomplete colonoscopy were looping of the scope (20.4 %), patient discomfort (15.3 %), and obstructing tumor (13.9 %). Secondary examination was performed in 278 patients (54.4 %) after incomplete colonoscopy. Patients undergoing surveillance after colorectal cancer (CRC) (78.9 %) and those with anemia (73.1 %) most frequently received a secondary examination. Incomplete colonoscopies due to stenosis (78.9 %), severe inflammation (77.8 %) or an obstructing tumor (74.6 %) were most frequently followed by a secondary examination. In all of the follow-up examinations, CRC was diagnosed in 18 patients (3.5 %) and advanced adenoma in four patients (0.8 %). CONCLUSIONS: In 4.3 % of the patients, advanced neoplasia was missed by incomplete colonoscopy. Our data therefore suggest that additional imaging is obligatory to visualize the remaining colon adequately.
Authors:
M Neerincx; J S Terhaar sive Droste; C J Mulder; M Räkers; J F Bartelsman; R J Loffeld; H A Tuynman; R M Brohet; R W van der Hulst
Publication Detail:
Type:  Journal Article     Date:  2010-07-28
Journal Detail:
Title:  Endoscopy     Volume:  42     ISSN:  1438-8812     ISO Abbreviation:  Endoscopy     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-08-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0215166     Medline TA:  Endoscopy     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  730-5     Citation Subset:  IM    
Copyright Information:
Copyright Georg Thieme Verlag KG Stuttgart . New York.
Affiliation:
Gastroenterology and Hepatology, VU University Medical Center, Amsterdam, The Netherlands. mneerincx@hotmail.com
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