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Long-Term Outcome and Surveillance Colonoscopy after Successful Endoscopic Treatment of Large Sessile Colorectal Polyps

 Bun Kim  ;  A Ra Choi  ;  Soo Jung Park  ;  Jae Hee Cheon  ;  Tae Il Kim  ;  Won Ho Kim  ;  Sung Pil Hong 
 Yonsei Medical Journal, Vol.57(5) : 1106-1114, 2016 
Journal Title
 Yonsei Medical Journal 
Issue Date
Adult ; Aged ; Colonic Neoplasms/diagnosis* ; Colonic Neoplasms/pathology ; Colonic Neoplasms/surgery ; Colonic Polyps/diagnosis* ; Colonic Polyps/pathology ; Colonic Polyps/surgery ; Colonoscopy* ; Endoscopic Mucosal Resection ; Female ; Humans ; Male ; Middle Aged ; Neoplasm Recurrence, Local/diagnosis* ; Prospective Studies ; Time Factors ; Watchful Waiting/methods*
Colorectal neoplasm ; colonoscopy ; gastrointestinal endoscopy
PURPOSE: Although there is a consensus about the need for surveillance colonoscopy after endoscopic resection, the interval remains controversial for large sessile colorectal polyps. The aim of this study was to evaluate the long-term outcome and the adequate surveillance colonoscopy interval required for sessile and flat colorectal polyps larger than 20 mm. MATERIALS AND METHODS: A total of 204 patients with large sessile and flat polyps who received endoscopic treatment from May 2005 to November 2011 in a tertiary referral center were included. RESULTS: The mean age was 65.1 years and 62.7% of the patients were male. The mean follow-up duration was 44.2 months and the median tumor size was 25 mm. One hundred and ten patients (53.9%) received a short interval surveillance colonoscopy (median interval of 6.3 months with range of 1-11 months) and 94 patients (46.1%) received a long interval surveillance colonoscopy (median interval of 13.6 months with range of 12-66 months). There were 14 patients (6.9%) who had local recurrence at the surveillance colonoscopy. Using multivariate regression analysis, a polyp size greater than 40 mm was shown to be independent risk factor for local recurrence. However, piecemeal resection and surveillance colonoscopy interval did not significantly influence local recurrence. CONCLUSION: Endoscopic treatment of large sessile colorectal polyps shows a favorable long-term outcome. Further prospective study is mandatory to define an adequate interval of surveillance colonoscopy.
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1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실)
Yonsei Authors
김원호(Kim, Won Ho)
김태일(Kim, Tae Il) ORCID logo https://orcid.org/0000-0003-4807-890X
박수정(Park, Soo Jung)
천재희(Cheon, Jae Hee) ORCID logo https://orcid.org/0000-0002-2282-8904
최아라(Choi, A Ra)
홍성필(Hong, Sung Pil)
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