Longly-attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20–30 mm colorectal intramucosal lesions

Background and study aims Underwater endoscopic mucosal resection (UEMR) is effective for colorectal intramucosal lesions. The aim of this study was to evaluate whether a longly-attached cap in UEMR improves the en bloc resection rate for 20–30 mm lesions. Patients and methods We performe...

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Main Authors: Hiroyoshi Iwagami, Takuji Akamatsu, Shinya Ogino, Hiroki Morimura, Masayuki Shimoyama, Tomoko Terashita, Shogo Nakano, Midori Wakita, Takeya Edagawa, Takafumi Konishi, Yasuki Nakatani, Yukitaka Yamashita
Format: Article
Language:English
Published: Georg Thieme Verlag KG 2022-12-01
Series:Endoscopy International Open
Online Access:http://www.thieme-connect.de/DOI/DOI?10.1055/a-1961-1684
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author Hiroyoshi Iwagami
Takuji Akamatsu
Shinya Ogino
Hiroki Morimura
Masayuki Shimoyama
Tomoko Terashita
Shogo Nakano
Midori Wakita
Takeya Edagawa
Takafumi Konishi
Yasuki Nakatani
Yukitaka Yamashita
author_facet Hiroyoshi Iwagami
Takuji Akamatsu
Shinya Ogino
Hiroki Morimura
Masayuki Shimoyama
Tomoko Terashita
Shogo Nakano
Midori Wakita
Takeya Edagawa
Takafumi Konishi
Yasuki Nakatani
Yukitaka Yamashita
author_sort Hiroyoshi Iwagami
collection DOAJ
description Background and study aims Underwater endoscopic mucosal resection (UEMR) is effective for colorectal intramucosal lesions. The aim of this study was to evaluate whether a longly-attached cap in UEMR improves the en bloc resection rate for 20–30 mm lesions. Patients and methods We performed a retrospective study at a tertiary institute. Candidates for the study were systematically retrieved from an endoscopic and pathological database from October 2016 to December 2020. We assessed the procedural outcomes with UEMR for lesions ≥ 20 mm in size and the clinical factors contributing to en bloc resection. Results A total of 52 colorectal lesions that underwent UEMR were included. The median procedure time was 271 (66–1264) seconds. The en bloc resection rate and R0 resection rate were 75 % and 73 %, respectively. Intraprocedural perforation occurred in one (1.9 %) case, but no bleeding occurred. Delayed bleeding occurred in one (1.9%) case, but no delayed perforation occurred. Regarding tumor size, macroscopic type, tumor location, and the presence or absence of a history of abdominal operation, there was no significant difference between the en bloc resection and piecemeal resection groups. The visibility of the whole lesion, a longly-attached cap, and sessile serrated lesions were more frequently observed in the en bloc resection group than in the piecemeal resection group (P < 0.001, P = 0.01, and P = 0.04, respectively). Multivariate analysis showed that a longly-attached cap was the only independent factor associated with en bloc resection (P = 0.02). Conclusions A longly-attached cap might contribute to en bloc resection.
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spelling doaj.art-e355c4c0158746cd99277415516bf3ee2022-12-22T03:53:18ZengGeorg Thieme Verlag KGEndoscopy International Open2364-37222196-97362022-12-011012E1562E156910.1055/a-1961-1684Longly-attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20–30 mm colorectal intramucosal lesionsHiroyoshi Iwagami0Takuji Akamatsu1Shinya Ogino2Hiroki Morimura3Masayuki Shimoyama4Tomoko Terashita5Shogo Nakano6Midori Wakita7Takeya Edagawa8Takafumi Konishi9Yasuki Nakatani10Yukitaka Yamashita11Department of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanDepartment of Gastroenterology and Hepatology, Japanese Red Cross Wakayama Medical Center, Wakayama, JapanBackground and study aims Underwater endoscopic mucosal resection (UEMR) is effective for colorectal intramucosal lesions. The aim of this study was to evaluate whether a longly-attached cap in UEMR improves the en bloc resection rate for 20–30 mm lesions. Patients and methods We performed a retrospective study at a tertiary institute. Candidates for the study were systematically retrieved from an endoscopic and pathological database from October 2016 to December 2020. We assessed the procedural outcomes with UEMR for lesions ≥ 20 mm in size and the clinical factors contributing to en bloc resection. Results A total of 52 colorectal lesions that underwent UEMR were included. The median procedure time was 271 (66–1264) seconds. The en bloc resection rate and R0 resection rate were 75 % and 73 %, respectively. Intraprocedural perforation occurred in one (1.9 %) case, but no bleeding occurred. Delayed bleeding occurred in one (1.9%) case, but no delayed perforation occurred. Regarding tumor size, macroscopic type, tumor location, and the presence or absence of a history of abdominal operation, there was no significant difference between the en bloc resection and piecemeal resection groups. The visibility of the whole lesion, a longly-attached cap, and sessile serrated lesions were more frequently observed in the en bloc resection group than in the piecemeal resection group (P < 0.001, P = 0.01, and P = 0.04, respectively). Multivariate analysis showed that a longly-attached cap was the only independent factor associated with en bloc resection (P = 0.02). Conclusions A longly-attached cap might contribute to en bloc resection.http://www.thieme-connect.de/DOI/DOI?10.1055/a-1961-1684
spellingShingle Hiroyoshi Iwagami
Takuji Akamatsu
Shinya Ogino
Hiroki Morimura
Masayuki Shimoyama
Tomoko Terashita
Shogo Nakano
Midori Wakita
Takeya Edagawa
Takafumi Konishi
Yasuki Nakatani
Yukitaka Yamashita
Longly-attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20–30 mm colorectal intramucosal lesions
Endoscopy International Open
title Longly-attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20–30 mm colorectal intramucosal lesions
title_full Longly-attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20–30 mm colorectal intramucosal lesions
title_fullStr Longly-attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20–30 mm colorectal intramucosal lesions
title_full_unstemmed Longly-attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20–30 mm colorectal intramucosal lesions
title_short Longly-attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20–30 mm colorectal intramucosal lesions
title_sort longly attached cap can contribute to en bloc underwater endoscopic mucosal resection of 20 30 mm colorectal intramucosal lesions
url http://www.thieme-connect.de/DOI/DOI?10.1055/a-1961-1684
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