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KMID : 1038120150480010052
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Clinical Endoscopy
2015 Volume.48 No. 1 p.52 ~ p.58
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Endoscopic Mucosal Resection with Circumferential Incision for the Treatment of Large Sessile Polyps and Laterally Spreading Tumors of the Colorectum
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Hong Young-Mi
Kim Hyung-Wook
Park Su-Bum
Choi Cheol-Woong
Kang Dae-Hwan
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Abstract
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Background/Aims: Endoscopic mucosal resection (EMR) is the standard treatment for colorectal polyps such as adenomas and early cancers with no risk of lymph node metastasis. However, endoscopic resection of large colorectal polyps (≥20 mm diameter) is difficult to perform. We evaluated the clinical outcomes of EMR with circumferential incision (EMR-CI) for the resection of large sessile polyps (Is) and laterally spreading tumors (LSTs) in the colorectum.
Methods: Between February 2009 and March 2011, we resected 80 large colorectal polyps by EMR-CI. We retrospectively investigated the en bloc resection rate, histologic complete resection rate, recurrence rate, and complications.
Results: The median polyp size was approximately 25 mm (range, 20 to 50), and the morphologic types included Is (13 cases), LST-granular (37 cases), and LST-nongranular (30 cases). The en bloc and complete histologic resection rates were 66.3% and 45.0%, respectively. The recurrence rate was 0% (median follow-up duration, 23 months), and perforation occurred in five cases (6.3%).
Conclusions: EMR-CI is an effective treatment modality for 20 to 30 mm-sized colorectal polyps, and may be considered as a second line therapeutic option if ESD is difficult.
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KEYWORD
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Colorectal polyps, Endoscopic mucosal resection, Circumferential incision
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