Endoscopy

BACKGROUND : Endoscopic full-thickness plication (EFTP) has shown promising results in gastroesophageal reflux disease (GERD), but its efficacy in GERD after peroral endoscopic myotomy (POEM) is unclear. METHODS : In a prospective, randomized trial of post-POEM patients dependent on proton pump inhibitors (PPIs) for documented GERD, patients underwent EFTP (plication to remodel the gastroesophageal flap valve) or an endoscopic sham procedure (positioning of the EFTP device, but no stapling). The primary end point was improvement in acid exposure time (AET) < 6 % (3 months)...

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ESGE suggests conventional endoscopic submucosal dissection (ESD; marking and mucosal incision followed by circumferential incision and stepwise submucosal dissection) for most esophageal and gastric lesions. ESGE suggests tunneling ESD for esophageal lesions involving more than two-thirds of the esophageal circumference. ESGE recommends the pocket-creation method for colorectal ESD, at least if traction devices are not used. The use of dedicated ESD knives with size adequate to the location/thickness of the gastrointestinal wall is recommended...

BACKGROUND:  Removing lumen-apposing metal stents (LAMSs) may be difficult and even harmful, but these features have seldom been analyzed. We aimed to generate a comprehensive assessment of the feasibility and safety of LAMS retrieval procedures. METHODS:  A prospective multicenter case series including all technically successfully deployed LAMSs between January 2019 and January 2020 that underwent endoscopic stent removal. All retrieval-related data were prospectively recorded using standardized telephone questionnaires as part of centralized follow-up that ended after stent removal had been performed...

No abstract text is available yet for this article.

No abstract text is available yet for this article.

No abstract text is available yet for this article.

BACKGROUND AND AIMS: Diagnosis of cholangiocarcinoma in case of biliary stricture without mass syndrome is obtained by biliary brushing with approximately 50% sensitivity. We performed a multicenter randomized crossover trial comparing the aggressive Infinity brush with the standard RX Cytology Brush. The aims were sensitivity for cholangiocarcinoma diagnosis and cellularity abundance. METHODS: 51 patients were included. Biliary brushing was performed consecutively with each brush, in a randomized order...

BACKGROUND AND AIMS: Optimal training strategies in endoscopic retrograde cholangiopancreatography (ERCP) remain controversial despite the shift towards competence-based training models, with limited data available on patient safety during training. We aimed to assess whether pre-procedural clinical predictors could identify patients at low-risk of developing procedure-related adverse-events(AE) in a training environment. METHODS: We performed a prospective, multicenter,cohort study including 5 training centers...

BACKGROUND AND STUDY AIM: Endoscopic vacuum therapy (EVT) is a novel treatment for esophageal perforations. The aim of this study was to describe initial experiences with EVT of esophageal perforations due to iatrogenic cause, Boerhaave syndrome or other perforations not related to prior upper gastrointestinal surgery. PATIENTS AND METHODS: Data from patients treated with EVT for esophageal perforation at five hospitals in three European countries, between January 2018 and October 2021, were retrospectively collected...

BACKGROUND: Zenker's diverticulum peroral endoscopic myotomy (zPOEM) is a minimally invasive treatment strategy for Zenker's diverticulum, with excellent results for management of small-to-moderate Zenker's diverticulum. We evaluated its use in the management of large Zenker's diverticulum. METHODS: This was a retrospective multicenter cohort study across 11 international centers including adult patients with large Zenker's diverticulum ≥ 40 mm treated by zPOEM between March 2017 and March 2022...

BACKGROUND: Serrated polyposis syndrome (SPS) is the most prevalent colonic polyposis syndrome and is associated with an increased colorectal cancer risk. A recent study in resected appendices of SPS patients reported that 6/23 (26.1 %) of identified serrated polyps had histological dysplasia. We evaluated the prevalence and clinical relevance of appendiceal lesions in a large SPS cohort. METHODS: Prospective data from 2007 to 2020 for a cohort of 199 SPS patients were analyzed...

No abstract text is available yet for this article.

No abstract text is available yet for this article.

BACKGROUND : Current guidelines suggest that routine biopsy of post-endoscopic mucosal resection (EMR) scars can be abandoned, provided that a standardized imaging protocol with virtual chromoendoscopy is used. However, few studies have examined the accuracy of advanced endoscopic imaging, such as narrow-band imaging (NBI) vs. white-light endoscopy (WLE) for prediction of histological recurrence. We aimed to assess whether NBI accuracy is superior to that of WLE and whether one or both techniques can replace biopsies...

BACKGROUND: Assessment of competence in endoscopic retrograde cholangiopancreatography (ERCP) is critical to support learning and document competence. Validity evidence supporting ERCP observational assessment tools has not been systematically evaluated. METHODS: We conducted a systematic search using electronic databases and hand-searching from inception until August 2021 for studies evaluating observational assessment tools of ERCP performance. We used a unified validity framework to characterize validity evidence from five sources: content, response process, internal structure, relations to other variables, and consequences...

BACKGROUND:  Previous studies have reported the effectiveness of narrow-band imaging (NBI) and linked-color imaging (LCI) in improving the detection of colorectal neoplasms. There has however been no direct comparison between LCI and NBI in the detection of colorectal sessile serrated lesions (SSLs). The present study aimed to compare the effectiveness of LCI and NBI in detecting colorectal SSLs. METHODS:  A prospective, parallel, randomized controlled trial was conducted...

Background Long-term pouch surveillance outcomes for familial adenomatous polyposis (FAP) are unknown. We aimed to quantify surveillance outcomes and to determine which of selected possible predictive factors is associated with pouch dysplasia. Methods We performed retrospective analysis of collected data on 249 patients. We analysed potential risk factors for developing adenomas or advanced lesions (≥10mm/high grade dysplasia (HGD)/cancer) in the pouch body (PB) and cuff using Cox proportional hazards models...

BACKGROUND AND STUDY AIM: We aimed to develop a convolutional neural network (CNN) model for detecting neoplastic lesions during real-time digital single-operator cholangioscopy (DSOC) and clinically validated the model through comparisons with DSOC experts and nonexpert endoscopists. PATIENTS AND METHODS: In this two-stage study, we first developed and validated CNN1. Then, we performed a multicenter diagnostic trial to compare four DSOC experts and nonexperts against an improved model (CNN2)...