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Gastrointestinal Endoscopy

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Relationship between the endoscopic withdrawal time and adenoma/polyp detection rate in individual colonic segments: a KASID multicenter study - 21/02/19

Doi : 10.1016/j.gie.2018.09.016 
Yunho Jung, MD, PhD 1, ∗, Young-Eun Joo, MD, PhD 2, ∗, Hyun Gun Kim, MD, PhD 3, Seong Ran Jeon, MD, PhD 3, Jae Myung Cha, MD, PhD 4, Hyo-Joon Yang, MD, PhD 5, Jong Wook Kim, MD, PhD 6, Jun Lee, MD, PhD 7, Kyeong Ok Kim, MD 8, Hye Kyung Song, MD, PhD 9, Young Hwangbo, MD, PhD 10, ⁎, Jeong Eun Shin, MD, PhD 11, ⁎
1 Department of Internal Medicine, Division of Gastroenterology, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea 
2 Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea 
3 Department of Internal Medicine, Division of Gastroenterology, Soonchunhyang University College of Medicine, Seoul, Republic of Korea 
4 Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Republic of Korea 
5 Department of Internal Medicine and Gastrointestinal Cancer Center, Division of Gastroenterology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea 
6 Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Republic of Korea 
7 Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea 
8 Department of Internal Medicine, Division of Gastroenterology and Hepatology, Yeungnam University College of Medicine, Daegu, Republic of Korea 
9 Departments of Health Promotion Medicine, Ewha Womans University School of Medicine, Seoul, Republic of Korea 
10 Department of Preventive Medicine, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea 
11 Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Republic of Korea 

∗Reprint requests: Jeong Eun Shin, MD, PhD, Division of Gastroenterology, Department of Internal Medicine, Dankook University College of Medicine, 201, Manghyangro, Dongnam-gu, Cheonan-si, Chungcheongnam-do, South Korea.Division of GastroenterologyDepartment of Internal MedicineDankook University College of Medicine201, Manghyangro, Dongnam-gu, Cheonan-si, Chungcheongnam-doSouth Korea∗Young Hwangbo, MD PhD. Department of Preventive Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan 31151, Republic of Korea.Department of Preventive MedicineSoonchunhyang University31 Suncheonhyang 6-gilDongnam-guCheonan31151Republic of Korea

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.

Il testo completo di questo articolo è disponibile in PDF.

Abbreviations : ADR, APC, CI, CRC, OR, P/L ratio, PDR, SDR


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 DISCLOSURE: All authors disclosed no financial relationships relevant to this publication. Research support for this study was provided by the Soonchunhyang University Research Fund.


© 2019  American Society for Gastrointestinal Endoscopy. Tutti i diritti riservati.
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Vol 89 - N° 3

P. 523-530 - marzo 2019 Ritorno al numero
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