Potential role of a novel endoscopic retrieval bag for large colorectal resected specimen: a proof-of-concept study.

Endoscopic submucosal dissection enables en bloc resection of large superficial colorectal neoplasms. However, it is sometimes challenging to retrieve a large resected specimen via the anus without sample fragmentation. A novel "bag-type" retrieval device has been developed to accomplish complete isolation and non-destructive delivery of oversized specimens. This single-center retrospective study was performed to demonstrate the efficacy of this device for large colorectal resected specimens. Among 17 patients, we identified 18 superficial colorectal lesions for which the use of a novel retrieval device (Endo Carry Large Type) was indicated at specimen delivery at a referral cancer institute from March 2021 to July 2022. The median (interquartile range) tumor size was 62.5 (52.0-79.5) mm. Retrieval of 17 (94%) of 18 resected specimens was performed using the Endo Carry Large Type, and 16 (89%) were successfully retrieved without sample fragmentation. The median (interquartile range) retrieval time was 4 (4-8) minutes, and no apparent adverse events were observed. The novel Endo Carry Large Type device can accomplish colorectal specimen retrieval safely and quickly without specimen damage and therefore may contribute to accurate pathological diagnosis.

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

Déclaration de conflit d'intérêts

Conflict of Interest Satoki Shichijo has received personal fees from Olympus Corporation, Daiichi-Sankyo, EA Pharma, AstraZeneca, AI Medical Service Inc., and Jannsen Pharmaceutical. Takashi Kanesaka has received personal fees from Olympus Corporation. Yoji Takeuchi received honoraria for his lectures from Olympus, Boston Scientific (Japan), Daiichi-Sankyo, Miyarisan Pharmaceutical, Asuka Pharmaceutical, AstraZeneca, EA Pharma, Zeria Pharmaceutical, Fujifilm, Kaneka Medix, Kyorin Pharmaceutical, and the Japan Gastroenterological Endoscopy Society. Noriya Uedo has received personal fees from Olympus Corporation, Boston Scientific Japan, FUJIFILM Medical Co., Ltd., Daiichi-Sankyo, Takeda Pharmaceutical, EA Pharma, Otsuka Pharmaceutical, AstraZeneca, AI Medical Service Inc., and Miyarisan Pharmaceutical. Ryu Ishihara has received personal fees from Olympus Corporation, FUJIFILM Medical Co., Ltd., Daiichi-Sankyo, Ono Pharmaceutical, EA Pharma, and AstraZeneca. The other authors have no financial relationships to disclose.