Digestive Endoscopy最新文献

{"title":"Best Reviewers Award for 2024","authors":"","doi":"10.1111/den.15031","DOIUrl":"https://doi.org/10.1111/den.15031","url":null,"abstract":"<p>\u0000 <b>Best Reviewers for 2024</b>\u0000 </p><p>\u0000 <b>Yusuke Horiuchi</b>\u0000 </p><p>\u0000 <b>Ken Inoue</b>\u0000 </p><p>\u0000 <b>Fumiaki Ishibashi</b>\u0000 </p><p>\u0000 <b>Takuya Ishikawa</b>\u0000 </p><p>\u0000 <b>Yasuharu Maeda</b>\u0000 </p><p>\u0000 <b>Akinori Maruta</b>\u0000 </p><p>\u0000 <b>Yosuke Minoda</b>\u0000 </p><p>\u0000 <b>Jun Miyoshi</b>\u0000 </p><p>\u0000 <b>Yasuhisa Mori</b>\u0000 </p><p>\u0000 <b>Takeshi Okamoto</b>\u0000 </p><p>\u0000 <b>Taishi Okumura</b>\u0000 </p><p>\u0000 <b>Shunsuke Omoto</b>\u0000 </p><p>\u0000 <b>Tatsunori Satoh</b>\u0000 </p><p>\u0000 <b>Hisashi Shiga</b>\u0000 </p><p>\u0000 <b>Ayaka Takasu</b>\u0000 </p><p>\u0000 <b>Yuki Tanisaka</b>\u0000 </p><p>\u0000 <b>Yosuke Toya</b>\u0000 </p><p>\u0000 <b>Daisuke Yamaguchi</b>\u0000 </p><p>\u0000 <b>Kazuki Yamamoto</b>\u0000 </p><p>\u0000 <b>Shinji Yoshii</b>\u0000 </p><p>\u0000 <b>\u0000 <i>Distinguished Reviewers - Reviewers who have received DEN Best Reviewers Award 3 or more times -</i>\u0000 </b>\u0000 </p><p><i>Seiichiro Abe, Osamu Dohi, Mitsuru Esaki, Motohiro Esaki, Yoshihiro Furuichi, Waku Hatta, Takuto Hikichi, Kenichiro Imai, Hirotoshi Ishiwatari, Hiroshi Kawakami, Hideki Kobara, Hiroki Kurumi, Masaki Kuwatani, Kosuke Minaga, Masanao Nakamura, Hiroki Sato, Yuto Shimamura, Mitsushige Sugimoto, Kazunori Takada, Yoji Takeuchi, Toshio Uraoka, Yasushi Yamasaki</i>.</p>","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 5","pages":"563-565"},"PeriodicalIF":5.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/den.15031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143926145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"WEO Newsletter: The Impact of Artificial Intelligence on Gastrointestinal Endoscopy","authors":"","doi":"10.1111/den.15036","DOIUrl":"https://doi.org/10.1111/den.15036","url":null,"abstract":"&lt;p&gt;WEO Newsletter Editor: Nalini M Guda MD, MASGE, AGAF, FACG, FJGES&lt;/p&gt;&lt;p&gt;Michael B. Wallace MD MPH&lt;/p&gt;&lt;p&gt;John C. Anderson Professor of Medicine, Mayo Clinic Florida&lt;/p&gt;&lt;p&gt;Artificial intelligence (AI) is rapidly transforming the field of gastrointestinal (GI) endoscopy, enhancing diagnostic accuracy, efficiency, and workflow optimization. AI-driven technologies, including deep learning algorithms and computer-aided detection and diagnosis (CADe/CADx), are being increasingly integrated into endoscopic practice, particularly in areas such as adenoma detection, polyp classification, Barrett's esophagus evaluation, early gastric cancer detection, indeterminate bile duct strictures, and bowel preparation classification. This review explores these key areas and the implications of AI on endoscopic workflows.&lt;/p&gt;&lt;p&gt;Colorectal cancer (CRC) prevention relies heavily on the detection and removal of adenomatous colon polyps during colonoscopy. AI-powered CADe systems have been developed to enhance adenoma detection rates (ADR) by identifying subtle lesions that may be overlooked by endoscopists. Studies have shown that AI-assisted colonoscopy increases ADR, reduces polyp miss rates, and improves overall procedural quality. By providing real-time visual alerts and bounding boxes around suspected polyps, AI enables more effective and standardized detection.&lt;/p&gt;&lt;p&gt;Beyond detection, AI plays a critical role in polyp characterization (CADx), aiding endoscopists in distinguishing between neoplastic and non-neoplastic lesions. AI algorithms trained on large datasets of histologically confirmed polyps can provide real-time classification, potentially reducing the need for unnecessary polypectomies. Technologies such as narrow-band imaging (NBI) and confocal laser endomicroscopy, when combined with AI, can enhance the accuracy of in vivo histological assessments. While nearly all polyps in the proximal colon should be removed endoscopically, making pre resection diagnosis less relevant, there remains a value in the rectosigmoid where small hyperplastic polyps can be left in Situ when the endoscopist is confident that they are hyperplastic. Furthermore, large polyps must be stratified into those that are noninvasive, superficially invasive, and deeply invasive to guide therapies such as standard endoscopic mucosal resection, endoscopic submucosal dissection and surgery respectively.&lt;/p&gt;&lt;p&gt;AI has also been recently shown to facilitate polyps size classification which is notoriously variable and has impact on surveillance recommendations particularly for polyps 10 mm or larger. Having objective measures of size should further standardize surveillance recommendations.&lt;/p&gt;&lt;p&gt;Barrett's esophagus (BE) is a precursor to esophageal adenocarcinoma, requiring precise surveillance and risk stratification. AI-based systems have been developed to detect BE and its progression to dysplasia by analyzing endoscopic images with high sensitivity and specificity. These algorithms can ","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 5","pages":"566-568"},"PeriodicalIF":5.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/den.15036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143926144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What has changed and remained the same in the past 55 years regarding the prediction and prevention of postendoscopic retrograde cholangiopancreatography pancreatitis?","authors":"Mamoru Takenaka,&nbsp;Masatoshi Kudo","doi":"10.1111/den.15025","DOIUrl":"10.1111/den.15025","url":null,"abstract":"&lt;p&gt;Although 55 years have passed since endoscopic retrograde cholangiopancreatography (ERCP) was first reported in 1968,&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt; post-ERCP pancreatitis (PEP) remains a major clinical challenge. A systematic review of 108 randomized controlled trials conducted between 1977 and 2012 revealed a 9.7% incidence of PEP among 13,296 patients in the control group.&lt;span&gt;&lt;sup&gt;2&lt;/sup&gt;&lt;/span&gt; Further, a prospective multicenter observational study involving 3739 cases reported a PEP incidence of 6.9%.&lt;span&gt;&lt;sup&gt;3&lt;/sup&gt;&lt;/span&gt; Notably, several studies have documented an increasing trend in PEP incidence over time. An analysis of 1.22 million hospitalizations in the United States from 2011 to 2017 showed rising hospitalization and fatality rates associated with PEP.&lt;span&gt;&lt;sup&gt;4&lt;/sup&gt;&lt;/span&gt; This trend may be attributed to the development and increased use of new therapeutic devices such as metal stents and cholangioscopes over the past 55 years. Meanwhile, there has been significant progress in understanding and preventing PEP, with studies identifying predictive factors and preventive strategies for PEP. Unlike 55 years ago, clinicians can now assess patient-related and procedure-related risk factors for PEP before ERCP and consider appropriate preventive measures. However, effective prediction and prevention require a comprehensive understanding of the latest advancements.&lt;/p&gt;&lt;p&gt;In this issue of &lt;i&gt;Digestive Endoscopy&lt;/i&gt;, Kato &lt;i&gt;et al&lt;/i&gt;. present an in-depth review titled “Current status and issues for prediction and prevention of post-endoscopic retrograde cholangiopancreatography pancreatitis.”&lt;span&gt;&lt;sup&gt;5&lt;/sup&gt;&lt;/span&gt; This article explores the latest prediction models, scoring systems, and newly identified patient factors. The following is a summary of changes and enduring aspects regarding PEP over the past 55 years.&lt;/p&gt;&lt;p&gt;In the early days of ERCP, knowledge about the risk factors for PEP was limited. There was no awareness that groups, such as young women, were at higher risk of developing PEP. Today, extensive research has identified various risk factors, often broadly categorized as patient-related factors (e.g. younger age or female sex) and procedure-related factors (e.g. difficult cannulation, repeated pancreatic duct instrumentation, or pancreatic duct guidewire placement). In recent years, anatomical factors such as large pancreatic parenchymal volume, high pancreatic fat content, and specific duodenal papilla morphology have been reported as risk factors for PEP.&lt;/p&gt;&lt;p&gt;As also emphasized by Kato &lt;i&gt;et al&lt;/i&gt;.,&lt;sup&gt;5&lt;/sup&gt; it is rare for patients undergoing ERCP to possess only a single risk factor, and several studies have reported the prediction of PEP using a prediction model and scoring system. In addition, artificial intelligence has been reported to be a helpful option for dealing with the increasingly complex risk factors of PEP in an integrated manner. The development of PEP prediction models has been reported, with fu","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 4","pages":"373-375"},"PeriodicalIF":5.0,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/den.15025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143694565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Guidelines for endoscopic management of nonvariceal upper gastrointestinal bleeding (second edition)","authors":"Mitsuhiro Fujishiro,&nbsp;Mikitaka Iguchi,&nbsp;Satoshi Ono,&nbsp;Kohei Funasaka,&nbsp;Yasuhisa Sakata,&nbsp;Tatsuya Mikami,&nbsp;Mikinori Kataoka,&nbsp;Shunji Shimaoka,&nbsp;Tomoki Michida,&nbsp;Yoshinori Igarashi,&nbsp;Shinji Tanaka","doi":"10.1111/den.15019","DOIUrl":"10.1111/den.15019","url":null,"abstract":"<p>The Japan Gastroenterological Endoscopy Society has prepared Guidelines for Endoscopic Practice in Nonvariceal Upper Gastrointestinal Bleeding as part of the initiative to develop evidence-based endoscopic practice guidelines. Hemorrhagic gastroduodenal (peptic) ulcers are the primary cause of nonvariceal upper gastrointestinal bleeding. With the advent of a super-aged society, the cases caused by <i>Helicobacter pylori</i> are on the decline, whereas those caused by drugs (e.g. aspirin) have been increasing. Endoscopic hemostasis is currently the first-line treatment for nonvariceal upper gastrointestinal bleeding, and various methods have been devised for this purpose. It is recommended to stabilize the vital signs of the patient before and after endoscopic hemostasis with appropriate management based on an assessment of the severity of illness, in addition to the administration of acid secretion inhibitors. These guidelines describe the evaluation and initial treatment of nonvariceal upper gastrointestinal bleeding, as well as the selection of endoscopic hemostasis for nonvariceal upper gastrointestinal bleeding and its management after endoscopic hemostasis. This is achieved by classifying nonvariceal upper gastrointestinal bleeding into two main categories, namely, peptic ulcer and other types of gastrointestinal bleeding. We prepared statements for any available literature with supporting evidence, including the levels of evidence and recommendations. New evidence has been pooled since the publication of the first edition in this area; however, the levels of evidence and recommendations mostly remain low.</p>","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 5","pages":"447-469"},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/den.15019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143671741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How to improve the diagnostic performance of endoscopic ultrasound-guided tissue acquisition for small gastric subepithelial lesions: Role of proper traction assistance","authors":"Tadahisa Inoue,&nbsp;Fumihiro Okumura","doi":"10.1111/den.15013","DOIUrl":"10.1111/den.15013","url":null,"abstract":"&lt;p&gt;Gastric subepithelial lesions (SELs) are commonly identified during upper gastrointestinal endoscopy. These lesions are covered by normal mucosa and display diverse histological features, leading to a broad differential diagnosis. A key diagnostic consideration is distinguishing between mesenchymal tumors, such as gastrointestinal stromal tumors (GISTs), which require treatment,&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt; and benign SELs, which typically do not necessitate intervention.&lt;/p&gt;&lt;p&gt;According to the Guidelines for GIST,&lt;span&gt;&lt;sup&gt;2, 3&lt;/sup&gt;&lt;/span&gt; tumor size is a critical criterion for histopathological diagnosis, with a threshold of 20 mm. However, tissue diagnosis is advised for any tumor exhibiting irregular margins, ulceration, depression, or evidence of growth, regardless of size. Endoscopic ultrasound-guided tissue acquisition (EUS-TA) is the first-line diagnostic approach in such cases.&lt;/p&gt;&lt;p&gt;Since differentiating GISTs is critical in SEL diagnosis, obtaining high-quality tissue samples that preserve structure and enable immunohistochemical evaluation is essential. Recent advancements in needles used for EUS-TA have significantly improved diagnostic capabilities. Although traditional fine-needle aspiration (FNA) needles were commonly used, newer fine-needle biopsy (FNB) needles, such as the Franseen and fork-tip needles, have been developed, with innovative designs that enable the acquisition of high-quality specimens.&lt;span&gt;&lt;sup&gt;4&lt;/sup&gt;&lt;/span&gt; These advancements have enhanced diagnostic accuracy.&lt;/p&gt;&lt;p&gt;A meta-analysis comparing FNB and FNA needles for gastrointestinal SELs showed that FNB needles achieved significantly higher diagnostic accuracy than FNA needles (odds ratio 4.10, 95% confidence interval 2.48–6.79; &lt;i&gt;P&lt;/i&gt; &lt; 0.0001).&lt;span&gt;&lt;sup&gt;5&lt;/sup&gt;&lt;/span&gt; However, the unique tip design of FNB needles reduces puncture performance compared to FNA needles. While this limitation is usually not an issue for easily accessible lesions, it poses challenges in more difficult cases, such as small gastric SELs, where achieving adequate puncture with an FNB needle can be challenging and remains a practical limitation.&lt;/p&gt;&lt;p&gt;In gastric SETs, respiratory motion and the high mobility of the lesions often make puncture challenging. The lesion may shift during the attempt, complicating efforts to secure it for puncture. Positioning the lesion at approximately the 3 o'clock direction on the EUS screen, instead of the conventional 6 o'clock position, can sometimes help. Applying upward angulation to the scope and using the probe to “cradle” the tumor helps stabilize the lesion, reducing its movement and facilitating puncture. However, this technique requires the tumor to be sufficiently large to be cradled effectively. Consequently, smaller gastric SETs remain particularly challenging, underscoring the need for tailored diagnostic methods for these cases.&lt;/p&gt;&lt;p&gt;A forward-viewing echoendoscope equipped with a cap attached to its tip has been reported as a pot","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 5","pages":"521-523"},"PeriodicalIF":5.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/den.15013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143588525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"WEO Newsletter: WEO Update from Lars Aabakken, MD President of WEO","authors":"","doi":"10.1111/den.15012","DOIUrl":"https://doi.org/10.1111/den.15012","url":null,"abstract":"&lt;p&gt;WEO has made significant strides as a global organization for the endoscopists. 2024 was another year of progress and increasing collaborations with other endoscopic societies.&lt;/p&gt;&lt;p&gt;WEO remains committed to the promotion of quality endoscopic education and practice throughout the world. 2024 was no exception and we have continued to evolve and conduct educational meetings not just in person but virtually and in hybrid formats to ensure we reach out to a wider audience and needs. This also keeps our environmental sustainability goals in mind.&lt;/p&gt;&lt;p&gt;What is needed today is the democratization of access to GI endoscopy especially to the developing world to improve global health. WEO in its part has expanded its efforts towards training and endoscopy facilitation in developing areas, in South America, in South-East Asia, and extensively in sub-Saharan Africa, building on an increasing number of official WEO training centers across the region. Since the easing of restrictions due to the recent COVID pandemic, this work is now a priority and WEO will increase its efforts towards this goal. WEO is aiming to contribute its part to make endoscopic education and training available to all and in doing so improve health care access and outcomes. As a part of our commitment and to streamline our efforts further WEO has decided to organize ENDO 2026 in Cape Town, South Africa, in conjunction with the South African societies, SAGES, SASES, and ASSA (South African Gastroenterology Society, South African Society of Endoscopic Surgeons, Association of Surgeons of South Africa). It is our hope that all our physician and industry partners will continue to support this initiative.&lt;/p&gt;&lt;p&gt;What we are as an organization today and how we continue to grow is mostly due to the efforts of several volunteer faculty, members, member societies and of course our industry partners. As the old African quote says “It takes a village to raise a child” WEO as an organization is indebted to the contributions of everyone involved for its growth and mission. Collaboration with sister societies has been our key pillar and WEO will forge stronger bonds with these organizations, individual members and our industry partners. While it is not easy to list all of the WEO activities, some of the key activities are listed below. WEO encourages everyone to contribute their ideas and join forces in creating globally uniform standards, access and delivery of endoscopic care.&lt;/p&gt;&lt;p&gt;The &lt;i&gt;Promoting Best Standards of Practice Series&lt;/i&gt; of educational broadcasts included four webinars organized by the WEO Standards of Practice Committee 2024.&lt;/p&gt;&lt;p&gt;Video Capsule Endoscopy Network (VCEN) 2024: Launched this year, the program developed by Jean-Francois Rey, featured three webinars from March to October, culminating in the WEO Capsule Endoscopy Global Summit on November 30 in Chongquing, China, with Lars Aabakken as conference president.&lt;/p&gt;&lt;p&gt;A VCE session and hands-on training was organized at EN","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 3","pages":"311-313"},"PeriodicalIF":5.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/den.15012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Guidelines for endoscopic diagnosis and treatment of inflammatory bowel diseases","authors":"Takayuki Matsumoto,&nbsp;Tadakazu Hisamatsu,&nbsp;Motohiro Esaki,&nbsp;Teppei Omori,&nbsp;Hirotake Sakuraba,&nbsp;Shinichiro Shinzaki,&nbsp;Ken Sugimoto,&nbsp;Kento Takenaka,&nbsp;Makoto Naganuma,&nbsp;Shigeki Bamba,&nbsp;Takashi Hisabe,&nbsp;Sakiko Hiraoka,&nbsp;Mikihiro Fujiya,&nbsp;Minoru Matsuura,&nbsp;Shunichi Yanai,&nbsp;Kenji Watanabe,&nbsp;Haruhiko Ogata,&nbsp;Akira Andoh,&nbsp;Hiroshi Nakase,&nbsp;Kazuo Ohtsuka,&nbsp;Fumihito Hirai,&nbsp;Mitsuhiro Fujishiro,&nbsp;Yoshinori Igarashi,&nbsp;Shinji Tanaka","doi":"10.1111/den.15002","DOIUrl":"10.1111/den.15002","url":null,"abstract":"<p>In recent years, we have seen a considerable increase in the number of patients with inflammatory bowel diseases of unknown etiology, including both Crohn's disease and ulcerative colitis. Inflammatory bowel diseases can cause intestinal lesions throughout the gastrointestinal tract, necessitating gastrointestinal endoscopy for examining all relevant aspects, especially lesion characteristics, for differential diagnosis and histological diagnosis, to select the appropriate treatment options, determine treatment effectiveness, etc. Specific guidelines are necessary to ensure that endoscopy can be performed in a safe and more tailored and efficient manner, especially since gastrointestinal endoscopy, including enteroscopy, is a common procedure worldwide, including in Japan. Within this context, the Japan Gastroenterological Endoscopy Society has formulated the “Guidelines for the Endoscopic Diagnosis and Treatment of Inflammatory Bowel Diseases” to provide detailed guidelines regarding esophagogastroduodenoscopy, enteroscopy, and colonoscopy procedures for definitive diagnosis, as well as determination of treatment effectiveness in clinical cases of inflammatory bowel diseases.</p>","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 4","pages":"319-351"},"PeriodicalIF":5.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/den.15002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143538095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response to “Side-by-side placement of fully covered metal stents versus 7F plastic stents in malignant hilar biliary obstruction”","authors":"Yavuz Emre Parlar","doi":"10.1111/den.15011","DOIUrl":"10.1111/den.15011","url":null,"abstract":"","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 4","pages":"429"},"PeriodicalIF":5.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143494943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Virtual-reality endoscopic navigation system in mediastinal natural orifice transluminal endoscopic surgery (with video)","authors":"Masaya Uesato,&nbsp;Senri Umetsu,&nbsp;Akira Nakano,&nbsp;Mayuko Kinoshita,&nbsp;Toshiya Nakaguchi,&nbsp;Hisahiro Matsubara","doi":"10.1111/den.15001","DOIUrl":"10.1111/den.15001","url":null,"abstract":"<p>The approaches to mediastinal surgery are open thoracic, thoracoscopic, and mediastinoscopy. However, using natural orifice transluminal endoscopic surgery (NOTES) would be minimally invasive if the mediastinum is reached via the esophagus. One disadvantage of NOTES was no information outside the wall. We focused on the electromagnetic tracking solution. The sensor position in the space created by the magnetic field generator can be determined. We performed a computed tomography (CT) of a pig before constructing the target mediastinal organs in 3D. The pig was placed in the magnetic field space, and the endoscope with the sensor was subsequently inserted orally and synchronized with the 3D image. By simultaneously viewing the actual and the virtual endoscopic image in 3D, the mediastinum can be visualized through the esophagus. We determined six points in advance in the 3D images, and the esophageal lumen closest to the esophagus from the points was marked with a clip under the endoscope. The CT scans showed that the mean error between the clip position and the closest point from the target point to the esophagus was 4.7 mm across three trials. We named this system the virtual-reality endoscopic navigation system (VENaS). VENaS can help determine the shortest distance to the point away from the esophagus and the 3D relation with the surrounding organs during esophageal endoscopy, and also displays gravity direction and an overhead view, thereby making it easy to approach areas with tumors or malformations in the mediastinum and increasing the realism of mediastinal NOTES.</p>","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 5","pages":"541-547"},"PeriodicalIF":5.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/den.15001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143494970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Underwater endoscopic mucosal resection of an ileal adenoma using double-balloon endoscopy","authors":"Tatsuki Hamaya,&nbsp;Yosuke Toya,&nbsp;Takayuki Matsumoto","doi":"10.1111/den.15003","DOIUrl":"10.1111/den.15003","url":null,"abstract":"","PeriodicalId":159,"journal":{"name":"Digestive Endoscopy","volume":"37 4","pages":"428"},"PeriodicalIF":5.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}