Korean J Gastrointest Endosc > Volume 26(4); 2003 > Article
Korean Journal of Gastrointestinal Endoscopy 2003;26(4): 199-204.
대장내시경의 대장직장 용종 및 선종의 간과율
최규용·이보인·이세영*·이원철*·배상수·김병욱·최황
가톨릭대학교 의과대학 내과학교실, *예방의학교실
Colonoscopic Miss-rate of Colorectal Polyp and Adenoma
Kyu Yong Choi, M.D., Bo In Lee, M.D., Se Young Lee, M.D.*, Won Chul Lee, M.D.*,
Departments of Internal Medicine and *Preventive Medicine, College of Medicine,
Abstract
Backgound/Aims: While colonoscopy is the gold standard diagnostic test for the detection of colorectal polyps (especially adenomas), it is also an imperfect method. We prospectively estimated the colonoscopic miss-rate of colorectal polyp and adenoma.
Methods:
We performed polypectomies in 603 out of 2,006 patients over age of 40 who underwent their first time colonoscopy between September 1999 and June 2001. A follow-up colonoscopy was performed within 60 days in 235 (53.4%) among 440 enrolled patients.
Results:
Seventy-three (31.0%) of 235 patients with polyps on initial colonoscopy were missed polyps and 37 (23.2%) of 159 patients with adenomas on initial colonoscopy were missed adenomas. As the number of polyps on the initial examination increased, the miss-rate increased significantly (p=0.01). The most frequent size of missed polyp was 3∼4 mm (55.5%, p=0.00) and the most frequent location was sigmoid colon (27.3%, p=0.00).
Conclusion:
It may be a fallacy to declare that all colorectal polyps are removed just after one session of colonoscopy. Examiners should make every effort to reduce the miss-rate of colorectal polyps during colonoscopy. (Korean J Gastrointest Endosc 2003;26:199⁣204)
Key Words: Colorectal polyp, Colorectal adenoma, Colonoscopy, Miss-rate
주요어: 대장직장 용종, 대장직장 선종, 대장내시경, 간과율
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