Use of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trial

Abstract Endoscopic submucosal dissection (ESD) is challenging in the right colon. Traction devices can make it technically easier. In this study, we evaluated a flexible grasper with articulating tip and elbow-like bending (IgE) through a double-balloon surgical platform (DESP), compared with an ea...

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Main Authors: Shinya Urakawa, Teijiro Hirashita, Yuka Hirashita, Lea Lowenfeld, Krishna C. Gurram, Makoto Nishimura, Jeffrey W. Milsom
Format: Article
Language:English
Published: Nature Portfolio 2021-09-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-98162-x
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author Shinya Urakawa
Teijiro Hirashita
Yuka Hirashita
Lea Lowenfeld
Krishna C. Gurram
Makoto Nishimura
Jeffrey W. Milsom
author_facet Shinya Urakawa
Teijiro Hirashita
Yuka Hirashita
Lea Lowenfeld
Krishna C. Gurram
Makoto Nishimura
Jeffrey W. Milsom
author_sort Shinya Urakawa
collection DOAJ
description Abstract Endoscopic submucosal dissection (ESD) is challenging in the right colon. Traction devices can make it technically easier. In this study, we evaluated a flexible grasper with articulating tip and elbow-like bending (IgE) through a double-balloon surgical platform (DESP), compared with an earlier generation grasper without elbow-like bending (Ig). The reach of Ig/IgE was investigated at eight locations using a synthetic colon within a 3D model. Using a fresh porcine colorectum, 4 cm pseudo-polyps were created at the posterior wall of the ascending colon. Fifty-four ESD procedures were performed using three techniques: standard ESD (STD), ESD using Ig (DESP + Ig), and ESD using IgE (DESP + IgE). IgE was able to reach the full circumference at all the locations, whereas the medial walls proximal to the descending colon were out of Ig’s reach. Compared with the STD, both DESP + Ig and DESP + IgE showed significantly shorter procedure time (STD vs. DESP + Ig vs. DESP + IgE = median 48.9 min vs. 38.6 vs. 29.9) and fewer injuries (1.5 vs. 0 vs. 0). Moreover, the DESP + IgE had a shorter procedure time than the DESP + Ig (p = 0.0025). The IgE with DESP increased instrument reach compared to Ig, and likely represented a traction tool for excision of large pseudo-polyps in the right colon.
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spelling doaj.art-0722e99e7cae4ec9af45c814366c44fb2022-12-21T23:38:34ZengNature PortfolioScientific Reports2045-23222021-09-011111910.1038/s41598-021-98162-xUse of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trialShinya Urakawa0Teijiro Hirashita1Yuka Hirashita2Lea Lowenfeld3Krishna C. Gurram4Makoto Nishimura5Jeffrey W. Milsom6Department of Surgery, Weill Cornell Medicine/ New York Presbyterian HospitalDepartment of Surgery, Weill Cornell Medicine/ New York Presbyterian HospitalDepartment of Surgery, Weill Cornell Medicine/ New York Presbyterian HospitalDepartment of Surgery, Weill Cornell Medicine/ New York Presbyterian HospitalDepartment of Gastroenterology and Hepatology, The Brooklyn Hospital CenterGastroenterology, Hepatology and Nutrition Service, Memorial Sloan Kettering Cancer CenterDepartment of Surgery, Weill Cornell Medicine/ New York Presbyterian HospitalAbstract Endoscopic submucosal dissection (ESD) is challenging in the right colon. Traction devices can make it technically easier. In this study, we evaluated a flexible grasper with articulating tip and elbow-like bending (IgE) through a double-balloon surgical platform (DESP), compared with an earlier generation grasper without elbow-like bending (Ig). The reach of Ig/IgE was investigated at eight locations using a synthetic colon within a 3D model. Using a fresh porcine colorectum, 4 cm pseudo-polyps were created at the posterior wall of the ascending colon. Fifty-four ESD procedures were performed using three techniques: standard ESD (STD), ESD using Ig (DESP + Ig), and ESD using IgE (DESP + IgE). IgE was able to reach the full circumference at all the locations, whereas the medial walls proximal to the descending colon were out of Ig’s reach. Compared with the STD, both DESP + Ig and DESP + IgE showed significantly shorter procedure time (STD vs. DESP + Ig vs. DESP + IgE = median 48.9 min vs. 38.6 vs. 29.9) and fewer injuries (1.5 vs. 0 vs. 0). Moreover, the DESP + IgE had a shorter procedure time than the DESP + Ig (p = 0.0025). The IgE with DESP increased instrument reach compared to Ig, and likely represented a traction tool for excision of large pseudo-polyps in the right colon.https://doi.org/10.1038/s41598-021-98162-x
spellingShingle Shinya Urakawa
Teijiro Hirashita
Yuka Hirashita
Lea Lowenfeld
Krishna C. Gurram
Makoto Nishimura
Jeffrey W. Milsom
Use of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trial
Scientific Reports
title Use of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trial
title_full Use of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trial
title_fullStr Use of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trial
title_full_unstemmed Use of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trial
title_short Use of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trial
title_sort use of an endoscopic flexible grasper as a traction tool for excision of polyps preclinical trial
url https://doi.org/10.1038/s41598-021-98162-x
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