Clinical Endoscopy

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Colonoscopy, a widely used procedure for diagnosing and treating colonic diseases, induces transient gastrointestinal symptoms and alterations in the gut microbiota. This review comprehensively examines the evidence on alterations in the gut microbiota following colonoscopy and their possible mechanisms. Factors such as rapid colonic evacuation, increased osmolality, and mucus thinning caused by bowel preparation and exposure to oxygen during the procedure contribute to these alterations. Typically, the alterations revert to the baseline within a short time...

Endoscopic bariatric therapies (EBTs) are minimally invasive and safe procedures with favorable weight loss outcomes in obesity treatment. We aimed to present the weight loss mechanism of action of EBTs and an individualized selection method for patients with obesity. We searched PubMed, Medline, Scopus, Embase, and Google Scholar databases for studies on the topic from databases inception to July 1, 2023, written in English. We focused on EBTs potential mechanism of action to induce weight loss. We also present an expert opinion on a novel selection of EBTs based on their mechanism of action...

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The use of immune checkpoint inhibitors (ICIs) for the treatment of various malignancies is increasing. Immune-related adverse events can occur after ICI administration, with gastrointestinal adverse events constituting a significant proportion of these events. When ICI-related diarrhea/colitis is suspected, endoscopic evaluation is recommended to differentiate it from other etiologies and assess the severity of colitis. The distribution of intestinal inflammation in ICI-related colitis demonstrates a high frequency of extensive colitis (23-86%)...

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BACKGROUND/AIMS: Endoscopic ultrasound (EUS)-guided pancreatic duct drainage is a well-established procedure for managing pancreaticojejunostomy anastomotic strictures (PJAS) post-Whipple surgery. In this study, we examined the effectiveness and safety of EUS-guided pancreaticojejunostomy (EUS-PJS). METHODS: This retrospective, single-arm study was performed at Aichi Cancer Center Hospital on 10 patients who underwent EUS-guided pancreaticojejunostomy through the afferent jejunal loop using a forward-viewing echoendoscope when endoscopic retrograde pancreatography failed...

BACKGROUND/AIMS: Cold snare polypectomy (CSP) is routinely performed for small colorectal polyps (≤10 mm). However, challenges include insufficient resection depth and immediate bleeding, hindering precise pathological evaluation. We aimed to compare the outcomes of cold endoscopic mucosal resection (CEMR) with that of CSP for colorectal polyps ≤10 mm, using data from randomized controlled trials (RCTs). METHODS: Multiple databases were searched in December 2023 for RCTs reporting outcomes of CSP versus CEMR for colorectal polyps ≤10 mm in size...

BACKGROUND/AIMS: Duodenal invasion (DI) is a risk factor for early recurrent biliary obstruction (RBO) in endoscopic retrograde cholangiopancreatography-guided biliary drainage (ERCP-BD). Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) may reduce early RBO in cases of asymptomatic DI, even when ERCP is possible. METHODS: We enrolled 56 patients with pancreatic cancer and asymptomatic DI who underwent EUS-HGS (n=25) or ERCP-BD (n=31). Technical and clinical success, early (<3 months) and overall RBO rates, time to RBO (TRBO), and adverse events (AEs) were compared between the EUS-HGS and ERCP-BD groups...

BACKGROUND/AIM: This study aimed to evaluate the effectiveness of the GI Genius (Medtronic) module in clinical practice, focusing on the adenoma detection rate (ADR) during colonoscopy. Computer-aided polyp detection (CADe) systems using artificial intelligence have been shown to improve adenoma detection in controlled trials. However, the effectiveness of these systems in clinical practice has recently been questioned. METHODS: This single-center prospective observational study was conducted at the University Hospital of Southern Denmark and included all individuals referred for colonoscopy between November 2020 and January 2021...

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BACKGROUND/AIMS: The real-world effectiveness of computer-aided detection (CADe) systems during colonoscopies remains uncertain. We assessed the effectiveness of the novel CADe system, ENdoscopy as AI-powered Device (ENAD), in enhancing the adenoma detection rate (ADR) and other quality indicators in real-world clinical practice. METHODS: We enrolled patients who underwent elective colonoscopies between May 2022 and October 2022 at a tertiary healthcare center. Standard colonoscopy (SC) was compared to ENAD-assisted colonoscopy...

BACKGROUND/AIMS: Coaxial placement of double pigtail plastic stents (DPPS) through lumen-apposing metal stents (LAMSs) is commonly performed to reduce the risk of LAMS obstruction, bleeding, and stent migration when used for the drainage of pancreatic fluid collections (PFCs). A systematic review and meta-analysis were performed to compare the outcomes of LAMS alone and LAMS with coaxial DPPS placement in the management of PFCs. METHODS: A systematic review was conducted to identify studies comparing LAMS and LAMS/DPPS for PFC drainage...

BACKGROUND/AIMS: This study aimed to evaluate the safety and efficacy of continuous propofol infusion for anesthesia during endoscopic ultrasonography (EUS). METHODS: A total of 427 consecutive patients who underwent EUS between May 2018 and February 2019 were enrolled in this study. The patients were divided into two propofol infusion groups: continuous (n=207) and intermittent (n=220). The following parameters were compared: (1) propofol dose, (2) respiratory and circulatory depression, (3) body movement requiring discontinuation of the examination, (4) awakening score, and (5) patient satisfaction...

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