Open AccessClinical significance of colorectal polyp detection on colonoscopy insertion
Author(s) -
Sakamoto Taku,
Ramaraj Raji,
Tomizawa Yutaka,
Cho Hourin,
Matsuda Takahisa,
Saito Yutaka
Publication year - 2019
Publication title -
ueg journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.667
H-Index - 35
eISSN - 2050-6414
pISSN - 2050-6406
DOI - 10.1177/2050640618809263
Subject(s) - medicine , colonoscopy , sigmoid colon , clinical significance , adenomatous polyps , gastroenterology , insertion time , colorectal cancer , retrospective cohort study , withdrawal time , clinical endpoint , rectum , surgery , clinical trial , cancer , airway
Background Colorectal lesions are generally evaluated during the withdrawal phase of colonoscopy. Minimising the risk of missed lesions is crucial to determine an appropriate future surveillance colonoscopy interval. Objective This study aimed to evaluate the clinical significance of detecting sigmoid colon lesions during the insertion phase. Methods This retrospective study included 172 consecutive patients undergoing colonoscopy between October 2017 and April 2018. The total number of detected polyps, mean polyps per procedure, mean polyps per positive procedure, and histological and clinical characteristics of detected lesions were recorded. The primary endpoint was the difference in sigmoid colon polyp detection rates during insertion and withdrawal. Results A total of 172 colonoscopies were performed for each patient and 322 lesions were detected. Sixty‐two (19%) polyps were detected during insertion, 312 (97%) during withdrawal, and 52 (16%) during both insertion and withdrawal. Although all polyps except for those in the sigmoid colon could be detected during withdrawal, 10 of 87 (11%) polyps in the sigmoid colon could only be detected during insertion. Conclusions In this study, attempts to detect polyps, even in the insertion phase, showed the clinical significance to decrease the risk of missed adenomatous polyps in the sigmoid colon.