Relationship between the endoscopic withdrawal time and adenoma/polyp detection rate in individual colonic segments: aKASID multicenter study
- Abstract
- BACKGROUND AND AIMS: Appropriate colonoscopy withdrawal times for individual colonic segments are not well known. The relationship between withdrawal time and adenoma detection rate (ADR)/polyp detection rate (PDR) in individual colonic segments was examined in this study. METHODS: This was a prospective observational study involving 724 patients who underwent colonoscopy screening or surveillance colonoscopy from October 2015 to February 2017 at 10 university hospitals. RESULTS: In the right side of the colon, the ADR (33.2% vs 13.7%, P< .001), PDR, serrated polyp detection rate, and number of adenomas per colonoscopy (APC) were significantly higher when the colonoscopy withdrawal time was≥2 minutes compared with<2 minutes. When the withdrawal time was≥4 minutes in the proximal colon and≥3 minutes in the left segment of the colon, the ADR, PDR, and APC were significantly higher compared with withdrawal times of<4 minutes and<3 minutes, respectively. Multivariate analyses showed that the ADR was significantly associated with withdrawal times of≥2 minutes in the right side of the colon (odds ratio [OR], 2.98; 95% confidence interval [CI], 1.72-5.15; P< .001),≥4 minutes in the proximal colon (OR, 4.48; 95% CI, 3.15-6.36; P< .001), and≥3 minutes in the left segment of the colon (OR, 2.92; 95% CI, 1.74-4.91; P< .001). CONCLUSIONS: The PDR and ADR appeared to be significantly increased when the withdrawal time was≥2 minutes in the right-sided colon segment,≥4 minutes in the proximal colon, and≥3 minutes in the left-sided colon segment compared with shorter withdrawal times.
- All Author(s)
- Y. Jung
; Y. E. Joo
; H. G. Kim
; S. R. Jeon
; J. M. Cha
; H. J. Yang
; J. W. Kim
; J. Lee
; K. O. Kim
; H. K. Song
; Y. Hwangbo
; J. E. Shin
- Issued Date
- 2019
- Type
- Article
- Keyword
- Adenocarcinoma/*diagnosis/pathology; Adenoma/*diagnosis/pathology; Adenomatous Polyps/diagnosis/pathology; Aftercare; Aged; Colon, Ascending/pathology; Colon, Descending/pathology; Colonic Polyps/*diagnosis/pathology; Colonoscopy/*methods; Colorectal Neoplasms/*diagnosis/pathology; Early Detection of Cancer; Female; Humans; Male; Middle Aged; Multivariate Analysis; Odds Ratio; Prospective Studies; Time Factors
- Publisher
- American Society for Gastrointestinal Endoscopy
- ISSN
- 0016-5107
- Citation Title
- Gastrointestinal Endoscopy
- Citation Volume
- 89
- Citation Number
- 3
- Citation Start Page
- 523
- Citation End Page
- 530
- Language(ISO)
- eng
- DOI
- 10.1016/j.gie.2018.09.016
- URI
- http://schca-ir.schmc.ac.kr/handle/2022.oak/2783
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