Ontology type: schema:ScholarlyArticle
2020-04-30
AUTHORSYoshinori Sato, Shun-ichiro Ozawa, Hiroshi Yasuda, Masaki Kato, Hirofumi Kiyokawa, Masaki Yamashita, Yasumasa Matsuo, Hiroyuki Yamamoto, Fumio Itoh
ABSTRACTBackgroundTip-in endoscopic mucosal resection (EMR) is a modified EMR technique using which en bloc resection of large colorectal sessile polyps can be performed; however, its usefulness for colorectal sessile polyps of > 20 mm has not been reported. This study examined treatment outcomes of tip-in and conventional EMR for large colorectal sessile polyps of ≥ 20 mm.MethodsThis was a retrospective case–control study conducted at a single tertiary center in Japan. Subjects included those with large colorectal sessile polyps of ≥ 20 mm, excluding pedunculated-type polyps, who underwent endoscopic resection between January 2010 and January 2019. The primary outcome was endoscopic treatment outcomes when using tip-in and conventional EMR, and the secondary outcome was the local recurrence rate after endoscopic treatment.ResultsForty-three colorectal lesions were treated using tip-in EMR and 83 using conventional EMR. Tip-in EMR had a significantly higher en bloc resection rate (90.7% vs. 69.8.%), and significantly shorter treatment duration (6.64 ± 0.64 min vs. 10.47 ± 0.81 min) than conventional EMR. However, for lesions > 30 mm, en bloc resection rate was 50.0% and 52.6% for tip-in and conventional EMR, respectively, indicating no significant difference. Perforation rates with tip-in and conventional EMR were 4.6% and 3.6%, respectively, indicating no significant difference. Local recurrence was examined in 80 cases who were followed up for > 6 months after endoscopic resection; recurrence rate was 0% and 7.0% in tip-in and conventional EMR cases, respectively, without significance difference.ConclusionsTip-in EMR showed high en-block resection rate, particularly in polyps of < 30 mm, and no residual tumor was found. This technique is a potential endoscopic treatment alternative for large colorectal sessile polyps of ≥ 20 mm. More... »
PAGES1820-1826
http://scigraph.springernature.com/pub.10.1007/s00464-020-07581-w
DOIhttp://dx.doi.org/10.1007/s00464-020-07581-w
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/32356110
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"description": "BackgroundTip-in endoscopic mucosal resection (EMR) is a modified EMR technique using which en bloc resection of large colorectal sessile polyps can be performed; however, its usefulness for colorectal sessile polyps of >\u200920\u00a0mm has not been reported. This study examined treatment outcomes of tip-in and conventional EMR for large colorectal sessile polyps of \u2265\u200920\u00a0mm.MethodsThis was a retrospective case\u2013control study conducted at a single tertiary center in Japan. Subjects included those with large colorectal sessile polyps of \u2265\u200920\u00a0mm, excluding pedunculated-type polyps, who underwent endoscopic resection between January 2010 and January 2019. The primary outcome was endoscopic treatment outcomes when using tip-in and conventional EMR, and the secondary outcome was the local recurrence rate after endoscopic treatment.ResultsForty-three colorectal lesions were treated using tip-in EMR and 83 using conventional EMR. Tip-in EMR had a significantly higher en bloc resection rate (90.7% vs. 69.8.%), and significantly shorter treatment duration (6.64\u2009\u00b1\u20090.64\u00a0min vs. 10.47\u2009\u00b1\u20090.81\u00a0min) than conventional EMR. However, for lesions >\u200930\u00a0mm, en bloc resection rate was 50.0% and 52.6% for tip-in and conventional EMR, respectively, indicating no significant difference. Perforation rates with tip-in and conventional EMR were 4.6% and 3.6%, respectively, indicating no significant difference. Local recurrence was examined in 80 cases who were followed up for >\u20096\u00a0months after endoscopic resection; recurrence rate was 0% and 7.0% in tip-in and conventional EMR cases, respectively, without significance difference.ConclusionsTip-in EMR showed high en-block resection rate, particularly in polyps of <\u200930\u00a0mm, and no residual tumor was found. This technique is a potential endoscopic treatment alternative for large colorectal sessile polyps of \u2265\u200920\u00a0mm.",
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