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      Endoscopic full-thickness resection in the colorectum: a single-center case series evaluating indication, efficacy and safety

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          Abstract

          Background and study aims  Endoscopic full-thickness resection (eFTR) allows en-bloc and transmural resection of colorectal lesions for which other advanced endoscopic techniques are unsuitable. We present our experience with a novel “clip first, cut later” eFTR-device and evaluate its indications, efficacy and safety.

          Patients and methods  From July 2015 through October 2017, 51 eFTR-procedures were performed in 48 patients. Technical success and R0-resection rates were prospectively recorded and retrospectively analyzed.

          Results  Indications for eFTR were non-lifting adenoma (n = 19), primary resection of malignant lesion (n = 2), resection of scar tissue after incomplete endoscopic resection of low-risk T1 colorectal carcinoma (n = 26), adenoma involving a diverticulum (n = 2) and neuroendocrine tumor (n = 2). Two lesions were treated by combining endoscopic mucosal resection and eFTR. Technical success was achieved in 45 of 51 procedures (88 %). Histopathology confirmed full-thickness resection in 43 of 50 specimens (86 %) and radical resection (R0) in 40 procedures (80 %). eFTR-specimens, obtained for indeterminate previous T1 colorectal carcinoma resection, were free of residual carcinoma in 25 of 26 cases (96 %). In six patients (13 %) a total of eight adverse events occurred within 30 days after eFTR. One perforation occurred, which was corrected endoscopically. No emergency surgery was necessary.

          Conclusion  In this study eFTR appears to be safe and effective for the resection of colorectal lesions. Technical success, R0-resection and major adverse events rate were reasonable and comparable with eFTR data reported elsewhere. Mean specimen diameter (23 mm) limits its use to relatively small lesions. A clinical algorithm for eFTR case selection is proposed. eFTR ensured local radical excision where other endoscopic techniques did not suffice and reduced the need for surgery in selected cases.

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          Predicting lymph node metastasis in pT1 colorectal cancer: a systematic review of risk factors providing rationale for therapy decisions.

          Iris Nagtegaal, Chris Cunningham, Steven Teerenstra … (2013)
          Population screening for colorectal cancer (CRC) is expected to increase the number of pT1 CRCs. Local excision is an attractive treatment option, but is only oncologically safe in the absence of lymph node metastasis (LNM). A systematic review of the predictive value of pathological risk factors for LNM in pT1 CRC was conducted to provide data for an evidence-based decision regarding follow-up or radical surgery after local excision. PubMed was searched for reports on predictors of LNM in pT1 CRC. Published papers written in English and containing at least 50 patients were included. Meta-analyses were performed using Review Manager 5.1. A total of 17 studies were included involving a total of 3621 patients with available nodal status. The strongest independent predictors of LNM were lymphatic invasion (relative risk [RR] 5.2, 95 % confidence interval [CI] 4.0 - 6.8), submucosal invasion ≥ 1 mm (RR 5.2, 95 %CI 1.8 - 15.4), budding (RR 5.1, 95 %CI 3.6 - 7.3), and poor histological differentiation (RR 4.8, 95 %CI 3.3 - 6.9). Limitations of the study were: results could not be stratified according to location in the colon or rectum; very early tumors removed by polypectomy without surgical resection were not included in the meta-analysis; and included studies were primarily from Asian countries and results therefore need to be verified in Western populations. The absence of lymphatic invasion, budding, submucosal invasion ≥ 1 mm, and poor histological differentiation were each associated with low risk of LNM. Risk stratification models integrating these factors need to be investigated further. © Georg Thieme Verlag KG Stuttgart · New York.
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            The Dutch surgical colorectal audit.

            Gea Gooiker, E Manusama, T Wiggers … (2013)
            In 2009, the nationwide Dutch Surgical Colorectal Audit (DSCA) was initiated by the Association of Surgeons of the Netherlands (ASN) to monitor, evaluate and improve colorectal cancer care. The DSCA is currently widely used as a blueprint for the initiation of other audits, coordinated by the Dutch Institute for Clinical Auditing (DICA). This article illustrates key elements of the DSCA and results of three years of auditing. Key elements include: a leading role of the professional association with integration of the audit in the national quality assurance policy; web-based registration by medical specialists; weekly updated online feedback to participants; annual external data verification with other data sources; improvement projects. In two years, all Dutch hospitals participated in the audit. Case-ascertainment was 92% in 2010 and 95% in 2011. External data verification by comparison with the Netherlands Cancer Registry (NCR) showed high concordance of data items. Within three years, guideline compliance for diagnostics, preoperative multidisciplinary meetings and standardised reporting increased; complication-, re-intervention and postoperative mortality rates decreased significantly. The success of the DSCA is the result of effective surgical collaboration. The leading role of the ASN in conducting the audit resulted in full participation of all colorectal surgeons in the Netherlands. By integrating the audit into the ASNs' quality assurance policy, it could be used to set national quality standards. Future challenges include reduction of administrative burden; expansion to a multidisciplinary registration; and addition of financial information and patient reported outcomes to the audit data. Copyright © 2013 Elsevier Ltd. All rights reserved.
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              Colonoscopic full-thickness resection using an over-the-scope device: a prospective multicentre study in various indications

              Arthur Schmidt, Torsten Beyna, Brigitte Schumacher … (2018)
              Endoscopic full-thickness resection (EFTR) is a novel treatment of colorectal lesions not amenable to conventional endoscopic resection. The aim of this prospective multicentre study was to assess the efficacy and safety of the full-thickness resection device.
              Article 0 comments Cited 78 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): Endosc Int Open
                Journal ID (iso-abbrev): Endosc Int Open
                Journal ID (doi): 10.1055/s-00025476
                Title: Endoscopy International Open
                Publisher: © Georg Thieme Verlag KG (Stuttgart · New York )
                ISSN (Print): 2364-3722
                ISSN (Electronic): 2196-9736
                Publication date (Print): October 2018
                Publication date (Electronic): 08 October 2018
                Volume: 6
                Issue: 10
                Pages: E1227-E1234
                Affiliations
                [1 ]Department of Gastroenterology and Hepatology, Northwest Hospital group, Alkmaar, The Netherlands
                [2 ]Department of Pathology, Symbiant, Pathology Expert Centre/Northwest Hospital group, Alkmaar, The Netherlands
                Author notes
                Corresponding author Dr. B.W. van der Spek Department of Gastroenterology and Hepatology Northwest Hospital group, Alkmaar Wilhelminalaan 121815 JD AlkmaarThe Netherlands+0031224532199 b.w.vander.spek@ 123456nwz.nl
                Article
                DOI: 10.1055/a-0672-1138
                PMC ID: 6175680
                SO-VID: 838648c9-9ff6-45ae-a3b7-e47dfe1b3e97
                License:

                This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

                History
                Date received : 09 February 2018
                Date accepted : 04 July 2018
                Categories
                Subject: Original article

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