Precutting Endoscopic Mucosal Resection Effective for Difficult Colorectal Lesions
abstract
This abstract is available on the publisher's site.
Access this abstract nowBACKGROUND
We analyzed the efficacy of precutting endoscopic mucosal resection (EMR), which is a method of making a full or partial circumferential mucosal incision around a tumor with a snare tip for en bloc resection.
METHODS
We reviewed cases from 2011 to 2018 in which precutting EMR (n = 167) and standard EMR (n = 557) were performed for lesions of 10 - 30 mm. Precutting EMR was indicated for benign lesions of 20 - 30 mm or lesions of < 20 mm for which standard EMR was difficult. Through propensity score matching of the two groups, the therapeutic outcomes for 35 lesions of ≥ 20 mm and 98 lesions of < 20 mm in each group were analyzed.
RESULTS
In the two sizes of lesion, there were significant differences between the precutting and standard groups in the en bloc resection rate (≥ 20 mm 88.6 % vs. 48.5 %, P < 0.001; < 20 mm 98.0 % vs. 85.7 %, P = 0.004) and the histological complete resection rate (≥ 20 mm 71.4 % vs. 42.9 %, P = 0.02; < 20 mm 87.8 % vs. 67.3 %, P < 0.001).
CONCLUSION
Precutting EMR enabled high en bloc resection rates in cases involving difficult lesions.
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Additional Info
Disclosure statements are available on the authors' profiles:
Efficacy of Precutting Endoscopic Mucosal Resection With Full or Partial Circumferential Incision Using a Snare Tip for Difficult Colorectal Lesions
Endoscopy 2019 Jul 15;[EPub Ahead of Print], N Yoshida, K Inoue, O Dohi, R Yasuda, R Hirose, Y Naito, T Murakami, K Ogiso, Y Inada, Y Inagaki, Y Morinaga, M Kishimoto, Y ItohFrom MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.