Clinical Endoscopy

Utility of underwater endoscopic mucosal resection combined with a protruding anchor by saline injection for superficial non-ampullary duodenal tumors: a retrospective study in Japan: Yoshie Nomoto, Satoshi Shinozaki, Yoshimasa Miura, Hiroyuki Osawa, Yuji Ino, Tomonori Yano, Nikolaos Lazaridis, Hironori Yamamoto; Received July 4, 2024 Accepted September 30, 2024 Published online March 12, 2025; DOI: https://doi.org/10.5946/ce.2024.181 [Epub ahead of print]

Graphical Abstract Abstract PDF PubReader ePub: Background
/Aims: Underwater endoscopic mucosal resection (UEMR) is the standard resection method for superficial non-ampullary duodenal tumors (SNADETs). We developed a novel UEMR technique that creates an anchor by protruding the distal fold with a saline injection (UEMR-A). The aim of this study was to clarify the usefulness of UEMR-A compared to conventional UEMR (UEMR-C).
Methods
This retrospective observational study included patients who underwent UEMR for SNADETs.
Results
A total of 141 patients were included and divided into UEMR-A (n=54) and UEMR-C (n=87) groups. Lesion resection was performed significantly more frequently by an expert endoscopist in the UEMR-C group compared to the UEMR-A group (p<0.001). The procedure time for UEMR-A was significantly shorter than that for UEMR-C (p=0.018), despite the additional time required for submucosal injection. The R0 resection rate was significantly higher in the UEMR-A group than in the UEMR-C group (p=0.004). The horizontal margins were significantly clearer in the UEMR-A group than in the UEMR-C group (p=0.018). Multivariate analysis revealed that the use of UEMR-A was the only significant positive factor for R0 resection.
Conclusions
The UEMR-A technique for SNADETs appears to improve R0 resection rates and reduce procedure times compared to the UEMR-C technique.

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Core curriculum for sedation in gastrointestinal endoscopy with a focus on practice: a proposal from the Korean Society of Gastrointestinal Endoscopy: Hong Sub Lee, Yun Jeong Lim, Jong-Jae Park, Endoscopic Sedation Committee of Korean Society of Gastrointestinal Endoscopy; Received August 16, 2024 Accepted December 11, 2024 Published online March 10, 2025; DOI: https://doi.org/10.5946/ce.2024.215 [Epub ahead of print]

Abstract PDF PubReader ePub: Ideal sedation education for gastrointestinal endoscopy should encompass all medications used in sedation therapy, and facilitate appropriate application in clinical practice by combining theoretical and practical education according to each country’s situation. The educational goals for endoscopic sedation in Korea have already been announced, and theoretical training is regularly conducted by the Korean Society of Gastrointestinal Endoscopy (KSGE). However, no official core curriculum for sedation during gastrointestinal endoscopy exists in Korea. Therefore, a practical curriculum aligned with Korea’s clinical context should be developed. The Endoscopic Sedation Committee of KSGE has identified these challenges and proposed a core curriculum for sedation during endoscopy. Firstly, in terms of theory, it would be beneficial to maintain current education. Secondly, since practical training is still lacking, it would be beneficial to have practical hands-on training. To accomplish this, each simulation center should provide basic practical training such as airway maintenance and advanced teamwork skills. This review presents a detailed curriculum for safe sedation in gastrointestinal endoscopy, developed based on Korea’s specific needs and supported by current literature.

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Predictors of failure of percutaneous endoscopic gastrostomy tube placement: a retrospective study in a tertiary care center in the USA: Ryan Xin, Cassandra Sanossian, Melissa Fazzari, Brandon Mui, Marouf Hossain, Jennifer Katz; Received May 9, 2024 Accepted September 10, 2024 Published online January 23, 2025; DOI: https://doi.org/10.5946/ce.2024.118 [Epub ahead of print]

Graphical Abstract Abstract PDF PubReader ePub: Background
/Aims: Percutaneous endoscopic gastrostomy (PEG) tube placement is a common procedure used to initiate enteral feeding. To our knowledge, there are no previous studies that analyze predictors of PEG failure. This study aims to identify risk factors for failure of inpatient PEG placement.
Methods
A retrospective chart review was conducted of inpatients in the Montefiore Health System who were scheduled to undergo PEG placement from 2016 to 2020 (n=1,138). Patient, endoscopist, and procedural characteristics were summarized using descriptive statistics, both overall and stratified by whether the PEG was successfully placed.
Results
The overall success rate of PEG placement was 89%. The most common indications included stroke (31%), dementia (27%), and ventilator use (24%). Patient characteristics, including body mass index (BMI) (p=0.16) and indication for PEG placement (p=0.06), were not significantly associated with PEG failure. Instead, endoscopist and procedural characteristics were found to be significant, including type of attending (p<0.001), location of case (p=0.02), and category of anesthesia (p<0.001).
Conclusions
PEG placement remains a highly successful procedure. Endoscopist and procedural characteristics, not patient characteristics, were associated with PEG placement success. Notably, patient BMI and indication for PEG placement could not be used to risk stratify candidates for PEG placement.

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Remimazolam, a novel drug, for safe and effective endoscopic sedation: Jae Min Lee, Yehyun Park, Dong Won Ahn, Jun Kyu Lee, Kwang Hyuck Lee; Received February 7, 2024 Accepted May 8, 2024 Published online January 14, 2025; DOI: https://doi.org/10.5946/ce.2024.026 [Epub ahead of print]

Abstract PDF PubReader ePub: Remimazolam is a novel benzodiazepine with unique pharmacokinetic and pharmacodynamic properties, making it an ideal candidate for sedation during endoscopic procedures. Distinguished by its rapid onset and short duration of action, remimazolam offers a safer and more efficient alternative to traditional sedatives, such as midazolam and propofol, with fewer side effects, such as hypotension, bradycardia, and respiratory depression. This article reviews the characteristics of remimazolam and its practical advantages, including ease of use, quick recovery time, and minimal residual sedation, emphasizing its potential to improve patient safety and procedural efficiency in clinical endoscopy settings.

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Bowel preparation for small bowel capsule endoscopy: standard regimen with 2 L polyethylene glycol versus 1 L polyethylene glycol plus ascorbate: Riccardo Caccia, Alessandro Rimondi, Luca Elli, Matilde Topa, Flaminia Cavallaro, Carmine Gentile, Lucia Scaramella, Nicoletta Nandi, Reena Sidhu, Pinhas Eidler, Maurizio Vecchi, Gian Eugenio Tontini; Received April 22, 2024 Accepted August 3, 2024 Published online January 2, 2025; DOI: https://doi.org/10.5946/ce.2024.097 [Epub ahead of print]

Graphical Abstract Abstract PDF PubReader ePub: Background
/Aims: Optimization of bowel preparation for small bowel capsule endoscopy (SBCE) is debated. Guidelines recommend 2 L of iso-osmolar polyethylene glycol (PEG) to improve SBCE visibility. We compared the efficacy of the standard 2 L PEG solution with a 1 L PEG plus ascorbate (PEG-ASC) preparation, which has already been established for large-bowel preparation.
Methods
Between October 2020 and February 2022, patients undergoing SBCE were assigned to receive 2 L PEG or 1 L PEG-ASC bowel preparation on an even- or odd-day basis. Bowel cleanliness was evaluated using the small bowel mucosal visibility scoring system (SBMVSS).
Results
Following propensity score matching using a random forest method, two comparable populations of patients treated with 2 L PEG (n=74, male 41%, 53±17 years) and 1 L PEG-ASC (n=74, male 42%, 55±21 years) were obtained from the original cohort of 221 consecutive SBCE patients. Our results showed a trend towards more frequent adequate mucosal visibility with 1 L PEG-ASC compared to 2 L PEG (small bowel mucosal visibility ≥2 in all three small bowel tertiles, p=0.07), as per the SBMVSS score. No significant differences were observed in the diagnostic yield (p=1.00), visibility score=9 (p=0.85), SBCE completeness (p=0.33), or adequate mucosal visibility in each tertile (p=0.61, p=0.74, and p=0.70 for the first, second, and third tertiles, respectively).
Conclusions
Our study suggests the non-inferiority of the 1 L PEG-ASC solution over the standard 2 L PEG for SBCE preparation.

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Effect of antithrombotic therapies on small bowel bleeding: an European multicenter retrospective study: Lucia Scaramella, Stefania Chetcuti Zammit, Reena Sidhu, Maurizio Vecchi, Gian Eugenio Tontini, Nicoletta Nandi, Matilde Topa, Luca Elli; Clin Endosc 2025;58(1):102-111. Published online December 2, 2024; DOI: https://doi.org/10.5946/ce.2024.073

Graphical Abstract Abstract PDF Supplementary Material PubReader ePub

Background
/Aims: Small bowel bleeding (SBB) is the main indication for videocapsule endoscopy (VCE); the diagnostic yield (DY) could be influenced by antithrombotic therapies. We explored the effects of these therapies on SBB.
Methods
Consecutive patients from two centers (Milan, Italy and Sheffield, UK) who underwent VCE between March 2001 and July 2020 were considered. Demographic data, clinical parameters, drug therapy, and technical characteristics of the procedure were collected. VCE findings and DY were evaluated.
Results
In total, 957 patients (1,052 VCEs) underwent VCE for SBB (DY 50.6%, no retention); 27 patients (27 VCEs) received direct oral anticoagulants, 87 (88 VCEs) received other anticoagulants, 115 (135 VCEs) received antiplatelet therapy, 198 (218 VCEs) received monotherapy, and 31 (32 VCEs) received combined therapy. There were no differences in the completion rate, findings, and DYs between each subgroup or between monotherapy and combined therapy. The overt bleeding rate was similar in all groups, even when comparing antithrombotic users versus those not on therapy (p=0.59) or monotherapy versus combined therapy (p=0.34).
Conclusions
VCE is safe and has a high clinical impact on SBB. Antithrombotic therapies did not affect DY or overt bleeding rate and, consequently, can be considered safe in terms of SBB risk.

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Do all antithrombotic agents have a similar impact on small bowel bleeding?
Chung Hyun Tae, Ki-Nam Shim
Clinical Endoscopy.2025; 58(1): 80. CrossRef

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Endoscopic vacuum therapy for gastrointestinal transmural defects: a literature review: Tan Minh Le, Van Huy Tran, Kyu Sung Chung, Seong Woo Jeon; Received June 10, 2024 Accepted August 14, 2024 Published online November 8, 2024; DOI: https://doi.org/10.5946/ce.2024.150 [Epub ahead of print]

Abstract PDF PubReader ePub: Endoscopic vacuum therapy (EVT) has emerged as a transformative approach for managing gastrointestinal (GI) transmural defects, offering a less invasive and more promising alternative to surgery. Initially developed to address anastomotic leaks after rectal surgery, the application of EVT has expanded to include other locations within the GI tract. This review investigated the principles, indications, procedures, outcomes, challenges, and future perspectives of EVT for the management of GI transmural defects. In conclusion, EVT has demonstrated favorable outcomes in GI defect closure, with reduced complications, shortened hospital stay, and decreased morbidity rates as compared with conventional treatments. Although EVT faces challenges in some specific anatomical locations and in managing severe complications such as major bleeding, ongoing advancements in technology and standardization efforts offer promise for broader indications and better outcomes. Future perspectives include exploring novel EVT devices, refining patient selection criteria and pre-emptive applications, and standardizing procedural protocols.

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Image-enhanced endoscopy in upper gastrointestinal disease: focusing on texture and color enhancement imaging and red dichromatic imaging: Jae Yong Park; Received June 14, 2024 Accepted July 21, 2024 Published online November 6, 2024; DOI: https://doi.org/10.5946/ce.2024.159 [Epub ahead of print]

Abstract PDF PubReader ePub: Endoscopic examination plays a crucial role in the diagnosis of upper gastrointestinal (UGI) tract diseases. Despite advancements in endoscopic imaging, the detection of subtle early cancers and premalignant lesions using white-light imaging alone remains challenging. This review discusses two novel image-enhanced endoscopy (IEE) techniques–texture and color enhancement imaging (TXI) and red dichromatic imaging (RDI)–and their potential applications in UGI diseases. TXI enhances texture, brightness, and color tone, which improves the visibility of mucosal irregularities and facilitates earlier detection of neoplastic lesions. Studies have suggested that TXI enhances the color differences between lesions and the surrounding mucosa and improves the visibility of the lesion. TXI aids in the diagnosis of various UGI diseases, including early gastric cancer, esophageal cancer, premalignant conditions such as atrophic gastritis and Barrett’s esophagus, and duodenal tumors. RDI utilizes specific wavelengths to enhance the visualization of deep blood vessels or bleeding points, aiding in the rapid and accurate identification of bleeding sources during endoscopic procedures. Although promising, TXI and RDI require further large-scale studies across diverse populations to establish their clinical utility, diagnostic performance, and cost-effectiveness before integration into the guidelines. Standardized training is also required for effective utilization. Overall, these IEE techniques has the potential to improve the diagnosis and management of UGI.

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Efficacy of endoscopic vacuum therapy in esophageal luminal defects: a systematic review and meta-analysis: Ishaan Vohra, Harishankar Gopakumar, Neil R. Sharma, Srinivas R. Puli; Clin Endosc 2025;58(1):53-62. Published online October 10, 2024; DOI: https://doi.org/10.5946/ce.2023.282

Graphical Abstract Abstract PDF PubReader ePub: Background
/Aims: Endoscopic vacuum-assisted closure (EVAC) is a novel technique used to repair esophageal perforation and leaks. Varying data have been reported on the overall success rate of EVAC. We aimed to conduct a meta-analysis of the available data on the clinical success rate of EVAC.
Methods
Electronic databases were searched for publications addressing the efficacy of EVAC in esophageal luminal defects. Pooling was conducted using both fixed and random-effects models. The overall clinical success of EVAC therapy was considered the primary outcome, whereas, overall complication rates, need for adjunct therapy, and mortality were considered secondary outcomes.
Results
In total, 366 patients were included in the study. On pooled analysis, the mean age was 66 years with 68.32% of patients being men. Overall pooled clinical success rate of EVAC therapy was 87.95%. Upon subgroup analysis, the pooled clinical success rate of postsurgical anastomotic leak and transmural esophageal perforation were found to be 86.57% and 88.89%, respectively. The all-cause hospital mortality was 14% and 4.2% in patients with esophageal perforation and EVAC, respectively.
Conclusions
This study demonstrates that EVAC therapy has a high overall clinical success rate, with low mortality. EVAC therapy seems to be a promising procedure with excellent outcomes in patients with luminal esophageal defects.

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Endoscopic findings of immune checkpoint inhibitor-related gastrointestinal adverse events: Min Kyu Kim, Sung Wook Hwang; Clin Endosc 2024;57(6):725-734. Published online August 29, 2024; DOI: https://doi.org/10.5946/ce.2024.003

Abstract PDF PubReader ePub

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%). However, isolated right-sided colitis (3–8%) and ileitis (2–16%) are less prevalent. Endoscopic findings vary and predominantly encompass features indicative of inflammatory bowel disease, including aphthae, ulcers, diffuse or patchy erythema, mucosal edema, loss of vascular pattern, and friability. The presence of ulcers and extensive intestinal inflammation are associated with a reduced response to treatment. Microscopic inflammation can be observed even in endoscopically normal mucosa, underscoring the need for biopsies of seemingly normal mucosa. Histological findings present with acute/chronic inflammation and occasionally exhibit characteristics observed in inflammatory bowel disease, microscopic colitis, or ischemic colitis. The first-line therapeutic choice for ICI-related diarrhea/colitis with a common terminology criteria for adverse events grade of 2 or above is corticosteroids, whereas infliximab and vedolizumab are recommended for refractory cases.

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Who is at risk for immune checkpoint inhibitor-induced colitis among Korean patients?
Ji Hyun Kim, Sung Chul Park
The Korean Journal of Internal Medicine.2025; 40(1): 3. CrossRef
CD8+ cell dominance in immune checkpoint inhibitor-induced colitis and its heterogeneity across endoscopic features
Min Kyu Kim, Hye-Nam Son, Seung Wook Hong, Sang Hyoung Park, Dong-Hoon Yang, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Suk-Kyun Yang, Shinkyo Yoon, Sung Wook Hwang
Therapeutic Advances in Gastroenterology.2024;[Epub] CrossRef

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Safety and efficacy of trans-afferent loop endoscopic ultrasound-guided pancreaticojejunostomy for post pancreaticoduodenectomy anastomotic stricture using the forward-viewing echoendoscope: a retrospective study from Japan: Ahmed Sadek, Kazuo Hara, Nozomi Okuno, Shin Haba, Takamichi Kuwahara, Toshitaka Fukui, Minako Urata, Takashi Kondo, Yoshitaro Yamamoto, Kenneth Tachi; Received April 12, 2024 Accepted May 31, 2024 Published online August 26, 2024; DOI: https://doi.org/10.5946/ce.2024.089 [Epub ahead of print]

Graphical Abstract Abstract PDF Supplementary Material PubReader ePub

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. Our primary endpoint was technical success rate, defined as successful stent insertion. The secondary endpoints were early and late adverse events.
Results
A total of 10 patients underwent EUS-PJS between February 2019 and October 2023. The technical success rate was 100%. The median procedure time was 23.5 minutes. No remarkable early or late adverse events related to the procedure, except for fever, occurred in two patients. The median follow-up duration was 9.5 months, and the median number of stent exchanges was two. A stent-free state was achieved in three patients.
Conclusions
EUS-PJS for PJAS management after pancreaticoduodenectomy appears to be an effective and safe procedure with the potential advantages of fewer reinterventions and the creation of a permanent drainage fistula.

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Transanastomotic Forward-Viewing EUS-Guided Pancreatic Duct Drainage via Afferent Loop for Pancreaticojejunostomy Anastomotic Stricture After Pancreaticoduodenectomy
Tadahisa Inoue, Rena Kitano, Tomoya Kitada, Kazumasa Sakamoto, Satoshi Kimoto, Jun Arai, Kiyoaki Ito
Digestive Diseases and Sciences.2025; 70(1): 413. CrossRef
Management of Pancreaticojejunostomy Strictures: A New Perspective with Forward-Viewing EUS
Radhika Chavan
Digestive Diseases and Sciences.2025;[Epub] CrossRef

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Role of endoscopy in eosinophilic esophagitis: Eun-Jin Yang, Kee Wook Jung; Clin Endosc 2025;58(1):1-9. Published online July 5, 2024; DOI: https://doi.org/10.5946/ce.2024.023

Abstract PDF PubReader ePub

Eosinophilic esophagitis (EoE) is a chronic immune-mediated disease involving inflammation of the esophagus. Endoscopy is essential in the diagnosis and treatment of EoE and shows typical findings, including esophageal edema, rings, exudates, furrows, and stenosis. However, studies involving pediatric and adult patients with EoE suggest that even a normally appearing esophagus can be diagnosed as EoE by endoscopic biopsy. Therefore, in patients with suspected EoE, biopsy samples should be obtained from the esophagus regardless of endoscopic appearance. Moreover, follow-up endoscopies with biopsy after therapy initiation are usually recommended to assess response. Although previous reports of endoscopic ultrasonography findings in patients with EoE have shown diffuse thickening of the esophageal wall, including lamina propria, submucosa, and muscularis propria, its role in EoE remains uncertain and requires further investigation. Endoscopic dilation or bougienage is a safe and effective procedure that can be used in combination with medical and/or dietary elimination therapy in patients with esophageal stricture for the management of dysphagia and to prevent its recurrence.

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The Dynamic Evolution of Eosinophilic Esophagitis
Amir Farah, Tarek Assaf, Jawad Hindy, Wisam Abboud, Mostafa Mahamid, Edoardo Vincenzo Savarino, Amir Mari
Diagnostics.2025; 15(3): 240. CrossRef

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Painless colonoscopy: fact or fiction?: Pieter Sinonquel, Alexander Jans, Raf Bisschops; Clin Endosc 2024;57(5):581-587. Published online June 27, 2024; DOI: https://doi.org/10.5946/ce.2024.001

Abstract PDF PubReader ePub

Although colonoscopy is a routinely performed procedure, it is not devoid of challenges, such as the potential for perforation and considerable patient discomfort, leading to patients postponing the procedure with several healthcare risks. This review delves into preprocedural and procedural solutions, and emerging technologies aimed at addressing the drawbacks of colonoscopies. Insufflation and sedation techniques, together with various other methods, have been explored to increase patient satisfaction, and thereby, the quality of endoscopy. Recent advances in this field include the prevention of loop formation, encompassing the use of variable-stiffness endoscopes, computer-guided scopes, magnetic endoscopic imaging, robotics, and capsule endoscopy. An autonomous endoscope that relies on self-propulsion to completely avoid looping is a potentially groundbreaking technology for the next generation of endoscopes. Nevertheless, critical techniques need to be refined to ensure the development of effective and efficient endoscopes.

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Polyp Matching in Colon Capsule Endoscopy: Pioneering CCE-Colonoscopy Integration Towards an AI-Driven Future
Ian Io Lei, Ramesh Arasaradnam, Anastasios Koulaouzidis
Journal of Clinical Medicine.2024; 13(23): 7034. CrossRef

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The evolution and current state of bariatric endoscopy in Western countries: Maria Valeria Matteo, Vincenzo Bove, Valerio Pontecorvi, Loredana Gualtieri, Giorgio Carlino, Cristiano Spada, Ivo Boškoski; Clin Endosc 2024;57(6):711-724. Published online May 24, 2024; DOI: https://doi.org/10.5946/ce.2023.253

Abstract PDF PubReader ePub: With the alarmingly increasing prevalence of obesity in the Western world, it has become necessary to provide more acceptable treatment options for patients with obesity. Minimally invasive endoscopic techniques are continuously evolving. Currently, metabolic and bariatric endoscopies encompass several different techniques that can offer significant weight loss and improvement in comorbidities with a favorable safety profile. Restrictive bariatric procedures include the use of intragastric balloons and gastric remodeling techniques with different suturing devices. Several studies have demonstrated the efficacy and safety of these techniques that are widely used in clinical practice. Small intestine-targeted metabolic endoscopy is an intriguing and rapidly evolving field of research, although it is not widespread in routine practice. These techniques include duodenal-jejunal bypass liners, duodenal mucosal resurfacing, and incisionless anastomoses. The aim of this review article is to provide a detailed update on the currently available bariatric endoscopy techniques in Western countries.

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Development of a predictive model for hypoxia due to sedatives in gastrointestinal endoscopy: a prospective clinical study in Korea: Jung Wan Choe, Jong Jin Hyun, Seong-Jin Son, Seung-Hak Lee; Clin Endosc 2024;57(4):476-485. Published online April 12, 2024; DOI: https://doi.org/10.5946/ce.2023.198

Graphical Abstract Abstract PDF PubReader ePub: Background
/Aims: Sedation has become a standard practice for patients undergoing gastrointestinal (GI) endoscopy. However, considering the serious cardiopulmonary adverse events associated with sedatives, it is important to identify patients at high risk. Machine learning can generate reasonable prediction for a wide range of medical conditions. This study aimed to evaluate the risk factors associated with sedation during GI endoscopy and develop a predictive model for hypoxia during endoscopy under sedation.
Methods
This prospective observational study enrolled 446 patients who underwent sedative endoscopy at the Korea University Ansan Hospital. Clinical data were used as predictor variables to construct predictive models using the random forest method that is a machine learning algorithm.
Results
Seventy-two of the 446 patients (16.1%) experienced life-threatening hypoxia requiring immediate medical intervention. Patients who developed hypoxia had higher body weight, body mass index (BMI), neck circumference, and Mallampati scores. Propofol alone and higher initial and total dose of propofol were significantly associated with hypoxia during sedative endoscopy. Among these variables, high BMI, neck circumference, and Mallampati score were independent risk factors for hypoxia. The area under the receiver operating characteristic curve for the random forest-based predictive model for hypoxia during sedative endoscopy was 0.82 (95% confidence interval, 0.79–0.86) and displayed a moderate discriminatory power.
Conclusions
High BMI, neck circumference, and Mallampati score were independently associated with hypoxia during sedative endoscopy. We constructed a model with acceptable performance for predicting hypoxia during sedative endoscopy.

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Safety and efficacy of novel oblique-viewing scope for B2-endoscopic ultrasound-guided hepaticogastrostomy: Sho Ishikawa, Kazuo Hara, Nozomi Okuno, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Yasuhiro Kuraishi, Takafumi Yanaidani, Masanori Yamada, Tsukasa Yasuda, Toshitaka Fukui, Teru Kumagi, Yoichi Hiasa; Clin Endosc 2024;57(4):527-533. Published online March 29, 2024; DOI: https://doi.org/10.5946/ce.2023.129

Graphical Abstract Abstract PDF PubReader ePub

Background
/Aims: Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (EUS-HGS) performed at the intrahepatic bile duct segment 3 (B3) is widely used for biliary drainage. Although performing post-puncture procedures is easier in the intrahepatic bile duct segment 2 (B2) when using a conventional oblique-viewing (OV) EUS scope, this method may cause transesophageal puncture and severe adverse events. We evaluated the safety and efficacy of B2 puncture using a novel OV-EUS scope.
Methods
In this single-center retrospective study, we prospectively enrolled and collected data from 45 patients who consecutively underwent EUS-HGS procedures with a novel OV-EUS scope between September 2021 and December 2022 at our cancer center.
Results
The technical success rates of B2-EUS-HGS and EUS-HGS were 93.3% (42/45) and 97.8% (44/45), respectively. The early adverse event rate was 8.9% (4/45) with no cases of scope changes or transesophageal punctures. The median procedure time was 13 minutes (range, 5–30).
Conclusions
B2-EUS-HGS can be performed safely with the novel EG-740UT (Fujifilm) OV-scope without transesophageal puncture and with a high success rate. B2-EUS-HGS using this novel OV scope may be the preferred strategy for EUS-HGS.

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Dedicated Echoendoscope for Interventional Endoscopic Ultrasound: Comparison with a Conventional Echoendoscope
Toshio Fujisawa, Shigeto Ishii, Yousuke Nakai, Hirofumi Kogure, Ko Tomishima, Yusuke Takasaki, Koichi Ito, Sho Takahashi, Akinori Suzuki, Hiroyuki Isayama
Journal of Clinical Medicine.2024; 13(10): 2840. CrossRef

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Prevalence and natural course of incidental gastric subepithelial tumors: Dae-Hyuk Heo, Min A Yang, Jae Sun Song, Won Dong Lee, Jin Woong Cho; Clin Endosc 2024;57(4):495-500. Published online March 29, 2024; DOI: https://doi.org/10.5946/ce.2023.124

Graphical Abstract Abstract PDF PubReader ePub

Background
/Aims: Gastric subepithelial tumors (SETs) are often encountered during the upper gastrointestinal endoscopic screening. We assessed the prevalence of gastric SETs and the risk factors for their progression.
Methods
We reviewed the electronic medical records of 30,754 patients who underwent upper gastrointestinal endoscopic screening at our medical center between January 2013 and December 2016.
Results
Among the 30,754 patients examined, 599 (1.94%) had gastric SETs. The prevalence increased with age and was 9.56% in patients aged ≥70 years. In total, 262 patients underwent serial endoscopy for more than 6 months. The median age was 68 years (interquartile range [IQR], 61–74), and the number of females was 167 (63.7%). During a median follow-up of 58 months (IQR, 38–75), 22 patients (8.4%) showed significant changes in tumor size. An irregular border (odds ratio, 4.623; 95% confidence interval, 1.093–19.558; p=0.037) was a significant risk factor for progression. Seven patients underwent surgical or endoscopic resections. The pathologies of gastric SETs included leiomyomas (n=3), gastrointestinal stromal tumors (n=2), and lipomas (n=2).
Conclusions
The prevalence of gastric SETs increases with age. Most gastric SETs do not progress during long-term endoscopic examinations, and the risk of an increase in size is low in asymptomatic small SETs without irregular borders.

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Advancements in Endoscopic Treatment for Gastric Subepithelial Tumors
Osamu Goto, Kazutoshi Higuchi, Eriko Koizumi, Katsuhiko Iwakiri
Gut and Liver.2025; 19(2): 151. CrossRef
Artificial Intelligence-Based Diagnosis of Gastric Mesenchymal Tumors Using Digital Endosonography Image Analysis
Dong Chan Joo, Gwang Ha Kim, Moon Won Lee, Bong Eun Lee, Ji Woo Kim, Kwang Baek Kim
Journal of Clinical Medicine.2024; 13(13): 3725. CrossRef

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Clinicopathological and endoscopic features of Helicobacter pylori infection-negative gastric cancer in Japan: a retrospective study: Kentaro Imamura, Kenshi Yao, Satoshi Nimura, Takao Kanemitsu, Masaki Miyaoka, Yoichiro Ono, Toshiharu Ueki, Hiroshi Tanabe; Clin Endosc 2024;57(4):486-494. Published online March 22, 2024; DOI: https://doi.org/10.5946/ce.2023.258

Graphical Abstract Abstract PDF PubReader ePub

Background
/Aims: Helicobacter pylori infection-negative gastric cancer (HPNGC) has not been systematically investigated in consecutive patients. Hence, this study aimed to investigate the clinicopathological and endoscopic features of HPNGC.
Methods
This single-center retrospective study selected participants from patients with gastric cancer who were treated at the Fukuoka University Chikushi Hospital between January 2013 and December 2021. Only patients diagnosed with HPNGC were enrolled, and their clinicopathological and endoscopic features were analyzed in detail.
Results
The prevalence of HPNGC in the present study was 2.6% (54/2112). The types of HPNGC observed in each gastric region were as follows: advanced gastric cancer was observed in the cardia; gastric adenocarcinoma of fundic-gland differentiation, gastric adenocarcinoma of foveolar-type presenting with whitish elevation and raspberry-like foveolar-type gastric adenocarcinoma, gastric adenocarcinoma arising in polyposis, and gastric adenocarcinoma with autoimmune gastritis were observed in the fundic gland region ranging from the gastric fornix to the gastric body; signet-ring cell carcinoma was observed in the gastric-pyloric transition region ranging from the lower gastric body to the gastric angle; and well-differentiated tubular adenocarcinoma with low-grade atypia was observed in the antrum.
Conclusions
This study revealed that tumors from each gastric region exhibited distinct macroscopic and histological types in HPNGC.

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Is your endoscopist qualified enough to detect Helicobacter pylori-naive status?
Sun-Young Lee
Clinical Endoscopy.2024; 57(4): 466. CrossRef

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International Digestive Endoscopy Network consensus on the management of antithrombotic agents in patients undergoing gastrointestinal endoscopy: Seung Joo Kang, Chung Hyun Tae, Chang Seok Bang, Cheol Min Shin, Young-Hoon Jeong, Miyoung Choi, Joo Ha Hwang, Yutaka Saito, Philip Wai Yan Chiu, Rungsun Rerknimitr, Christopher Khor, Vu Van Khien, Kee Don Choi, Ki-Nam Shim, Geun Am Song, Oh Young Lee, The Korean Society of Gastrointestinal Endoscopy Task Force on Clinical Practice Guidelines; Clin Endosc 2024;57(2):141-157. Published online March 14, 2024; DOI: https://doi.org/10.5946/ce.2024.002

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Antithrombotic agents, including antiplatelet agents and anticoagulants, are widely used in Korea because of the increasing incidence of cardiocerebrovascular disease and the aging population. The management of patients using antithrombotic agents during endoscopic procedures is an important clinical challenge. The clinical practice guidelines for this issue, developed by the Korean Society of Gastrointestinal Endoscopy, were published in 2020. However, new evidence on the use of dual antiplatelet therapy and direct anticoagulant management has emerged, and revised guidelines have been issued in the United States and Europe. Accordingly, the previous guidelines were revised. Cardiologists were part of the group that developed the guideline, and the recommendations went through a consensus-reaching process among international experts. This guideline presents 14 recommendations made based on the Grading of Recommendations, Assessment, Development, and Evaluation methodology and was reviewed by multidisciplinary experts. These guidelines provide useful information that can assist endoscopists in the management of patients receiving antithrombotic agents who require diagnostic and elective therapeutic endoscopy. It will be revised as necessary to cover changes in technology, evidence, or other aspects of clinical practice.

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EUS-guided gallbladder drainage for patients with antithrombotic therapy: Intervention or medication?
Liqi Sun, Jiang Liu
Gastrointestinal Endoscopy.2025; 101(1): 226. CrossRef
Do all antithrombotic agents have a similar impact on small bowel bleeding?
Chung Hyun Tae, Ki-Nam Shim
Clinical Endoscopy.2025; 58(1): 80. CrossRef
Prediction of immediate bleeding after cold snare polypectomy: A prospective observational study
Shin Ju Oh, Yunho Jung, Young Hwangbo, Young Sin Cho, Il Kwun Chung, Chang Kyun Lee
Medicine.2024; 103(36): e39597. CrossRef

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As how artificial intelligence is revolutionizing endoscopy: Jean-Francois Rey; Clin Endosc 2024;57(3):302-308. Published online March 8, 2024; DOI: https://doi.org/10.5946/ce.2023.230

Abstract PDF PubReader ePub

With incessant advances in information technology and its implications in all domains of our lives, artificial intelligence (AI) has emerged as a requirement for improved machine performance. This brings forth the query of how this can benefit endoscopists and improve both diagnostic and therapeutic endoscopy in each part of the gastrointestinal tract. Additionally, it also raises the question of the recent benefits and clinical usefulness of this new technology in daily endoscopic practice. There are two main categories of AI systems: computer-assisted detection (CADe) for lesion detection and computer-assisted diagnosis (CADx) for optical biopsy and lesion characterization. Quality assurance is the next step in the complete monitoring of high-quality colonoscopies. In all cases, computer-aided endoscopy is used, as the overall results rely on the physician. Video capsule endoscopy is a unique example in which a computer operates a device, stores multiple images, and performs an accurate diagnosis. While there are many expectations, we need to standardize and assess various software packages. It is important for healthcare providers to support this new development and make its use an obligation in daily clinical practice. In summary, AI represents a breakthrough in digestive endoscopy. Screening for gastric and colonic cancer detection should be improved, particularly outside expert centers. Prospective and multicenter trials are mandatory before introducing new software into clinical practice.

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Effectiveness of a novel artificial intelligence-assisted colonoscopy system for adenoma detection: a prospective, propensity score-matched, non-randomized controlled study in Korea
Jung-Bin Park, Jung Ho Bae
Clinical Endoscopy.2025; 58(1): 112. CrossRef
Deep Learning-Based Real-Time Organ Localization and Transit Time Estimation in Wireless Capsule Endoscopy
Seung-Joo Nam, Gwiseong Moon, Jung-Hwan Park, Yoon Kim, Yun Jeong Lim, Hyun-Soo Choi
Biomedicines.2024; 12(8): 1704. CrossRef
Understanding the discrepancy in the effectiveness of artificial intelligence-assisted colonoscopy: from randomized controlled trials to clinical reality
Jung Ho Bae
Clinical Endoscopy.2024; 57(6): 765. CrossRef
Edge Artificial Intelligence Device in Real-Time Endoscopy for Classification of Gastric Neoplasms: Development and Validation Study
Eun Jeong Gong, Chang Seok Bang, Jae Jun Lee
Biomimetics.2024; 9(12): 783. CrossRef

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Role of endoscopic duodenojejunal bypass liner in obesity management and glycemic control: Willian Ferreira Igi, Victor Lira de Oliveira, Ayah Matar, Diogo Turiani Hourneaux de Moura; Clin Endosc 2024;57(3):309-316. Published online February 15, 2024; DOI: https://doi.org/10.5946/ce.2023.217

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The treatment of obesity and its comorbidities ranges from clinical management involving lifestyle changes and medications to bariatric and metabolic surgery. Various endoscopic bariatric and metabolic therapies recently emerged to address an important therapeutic gap by offering a less invasive alternative to surgery that is more effective than conservative therapies. This article comprehensively reviews the technical aspects, mechanism of action, outcomes, and future perspectives of one of the most promising endoscopic bariatric and metabolic therapies, named duodenojejunal bypass liner. The duodenojejunal bypass liner mimics the mechanism of Roux-en-Y gastric bypass by preventing food contact with the duodenum and proximal jejunum, thereby initiating a series of hormonal changes that lead to delayed gastric emptying and malabsorptive effects. These physiological changes result in significant weight loss and improved metabolic control, leading to better glycemic levels, preventing dyslipidemia and non-alcoholic fatty liver disease, and mitigating cardiovascular risk. However, concern exists regarding the safety profile of this device due to the reported high rates of severe adverse events, particularly liver abscesses. Ongoing technical changes aiming to reduce adverse events are being evaluated in clinical trials and may provide more reliable data to support its routine use in clinical practice.

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Bacteroides and NAFLD: pathophysiology and therapy
Jun Zhang, Jing Zhou, Zheyun He, Hongshan Li
Frontiers in Microbiology.2024;[Epub] CrossRef

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Endoscopic resection of gastric gastrointestinal stromal tumor using clip-and-cut endoscopic full-thickness resection: a single-center, retrospective cohort in Korea: Yuri Kim, Ji Yong Ahn, Hwoon-Yong Jung, Seokin Kang, Ho June Song, Kee Don Choi, Do Hoon Kim, Jeong Hoon Lee, Hee Kyong Na, Young Soo Park; Clin Endosc 2024;57(3):350-363. Published online February 15, 2024; DOI: https://doi.org/10.5946/ce.2023.144

Graphical Abstract Abstract PDF Supplementary Material PubReader ePub

Background
/Aims: To overcome the technical limitations of classic endoscopic resection for gastric gastrointestinal stromal tumors (GISTs), various methods have been developed. In this study, we examined the role and feasibility of clip-and-cut procedures (clip-and-cut endoscopic full-thickness resection [cc-EFTR]) for gastric GISTs.
Methods
Medical records of 83 patients diagnosed with GISTs after endoscopic resection between 2005 and 2021 were retrospectively reviewed. Moreover, clinical characteristics and outcomes were analyzed.
Results
Endoscopic submucosal dissection (ESD) and cc-EFTR were performed in 51 and 32 patients, respectively. The GISTs were detected in the upper third of the stomach for ESD (52.9%) and cc-EFTR (90.6%). Within the cc-EFTR group, a majority of GISTs were located in the deep muscularis propria or serosal layer, accounting for 96.9%, as opposed to those in the ESD group (45.1%). The R0 resection rates were 51.0% and 84.4% in the ESD and cc-EFTR groups, respectively. Seven (8.4%) patients required surgical treatment (six patients underwent ESD and one underwent cc-EFTR,) due to residual tumor (n=5) and post-procedure adverse events (n=2). Patients undergoing R0 or R1 resection did not experience recurrence during a median 14-month follow-up period, except for one patient in the ESD group.
Conclusions
cc-EFTR displayed a high R0 resection rate; therefore, it is a safe and effective therapeutic option for small gastric GISTs.

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Advancements in Endoscopic Treatment for Gastric Subepithelial Tumors
Osamu Goto, Kazutoshi Higuchi, Eriko Koizumi, Katsuhiko Iwakiri
Gut and Liver.2025; 19(2): 151. CrossRef
Endoscopic resection penetrating the muscularis propria for gastric gastrointestinal stromal tumors: advances and challenges
Jin Woong Cho
Clinical Endoscopy.2024; 57(3): 329. CrossRef

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The role of cap-assisted endoscopy and its future implications: Sol Kim, Bo-In Lee; Clin Endosc 2024;57(3):293-301. Published online February 7, 2024; DOI: https://doi.org/10.5946/ce.2023.051

Abstract PDF PubReader ePub

Cap-assisted endoscopy refers to a procedure in which a short tube made of a polymer (mostly transparent) is attached to the distal tip of the endoscope to enhance its diagnostic and therapeutic capabilities. It is reported to be particularly useful in: (1) minimizing blind spots during screening colonoscopy, (2) providing a constant distance from a lesion for clear visualization during magnifying endoscopy, (3) accurately assessing the size of various gastrointestinal lesions, (4) preventing mucosal injury during foreign body removal, (5) securing adequate workspace in the submucosal space during endoscopic submucosal dissection or third space endoscopy, (6) providing an optimal approach angle to a target, and (7) suctioning mucosal and submucosal tissue with negative pressure for resection or approximation. Here, we review various applications of attachable caps in diagnostic and therapeutic endoscopy and their future implications.

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A retrospective single-center study of transnasal ileus tube insertion accompanied with cap-assisted endoscopic advancement for malignant adhesive bowel obstruction
Su-Yu Chen, Rui Huang, Yu Zhang, Zhao-Fei Xie, He Huang, Hong Shi
Scientific Reports.2024;[Epub] CrossRef

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Costs involved in compliance with new endoscope reprocessing guidelines: David Hoffman, Christina Cool; Clin Endosc 2024;57(4):534-541. Published online January 26, 2024; DOI: https://doi.org/10.5946/ce.2023.164

Graphical Abstract Abstract PDF PubReader ePub: Background
/Aims: In March 2022, the Association for the Advancement of Medical Instrumentation (AAMI) released the American National Standards Institute (ANSI)/AAMI ST91:2021, their latest update on comprehensive, flexible, and semirigid endoscope reprocessing. These updated standards recommend the sterilization of high-risk endoscopes when possible and provide new recommendations for the precleaning, leak testing, manual cleaning, visual inspection, automated reprocessing, drying, storage, and transport of endoscopes.
Methods
ANSI/AAMI ST91:2021 was compared with ANSI/AAMI ST91:2015 for major reprocessing differences that result in either time and/or cost increases. Time estimates were captured by explicit recommendation inclusion or taken from the literature. All the costs were estimated using publicly available resources.
Results
The updated standards represent a potential 24.3-minute and 52.35 to 67.57 United States dollars increase per procedure in terms of reprocessing time and spending, respectively, not including capital investments. Capital costs per procedure were highly dependent on the procedure volume of the facility.
Conclusions
The new AAMI standards recommend several major changes, such as sterilization, for facilities to reprocess and manage endoscopes between uses. As more facilities increase their reprocessing methods to reflect the updated standards, they do so at a cost and introduce several delays. As the reprocessing landscape evolves, facilities should consider their true costs and alternative solutions, such as single-use endoscopes.

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Application of artificial intelligence for diagnosis of early gastric cancer based on magnifying endoscopy with narrow-band imaging: Yusuke Horiuchi, Toshiaki Hirasawa, Junko Fujisaki; Clin Endosc 2024;57(1):11-17. Published online January 5, 2024; DOI: https://doi.org/10.5946/ce.2023.173

Abstract PDF PubReader ePub

Although magnifying endoscopy with narrow-band imaging is the standard diagnostic test for gastric cancer, diagnosing gastric cancer using this technology requires considerable skill. Artificial intelligence has superior image recognition, and its usefulness in endoscopic image diagnosis has been reported in many cases. The diagnostic performance (accuracy, sensitivity, and specificity) of artificial intelligence using magnifying endoscopy with narrow band still images and videos for gastric cancer was higher than that of expert endoscopists, suggesting the usefulness of artificial intelligence in diagnosing gastric cancer. Histological diagnosis of gastric cancer using artificial intelligence is also promising. However, previous studies on the use of artificial intelligence to diagnose gastric cancer were small-scale; thus, large-scale studies are necessary to examine whether a high diagnostic performance can be achieved. In addition, the diagnosis of gastric cancer using artificial intelligence has not yet become widespread in clinical practice, and further research is necessary. Therefore, in the future, artificial intelligence must be further developed as an instrument, and its diagnostic performance is expected to improve with the accumulation of numerous cases nationwide.

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Combination of artificial intelligence endoscopic diagnosis and Kimura‐Takemoto classification determined by endoscopic experts may effectively evaluate the stratification of gastric atrophy in post‐eradication status
Kumiko Kirita, Seiji Futagami, Ken Nakamura, Shuhei Agawa, Nobue Ueki, Kazutoshi Higuchi, Mayu Habiro, Rie Kawawa, Yusuke Kato, Tomohiro Tada, Katsuhiko Iwakiri
DEN Open.2025;[Epub] CrossRef
Identification and validation of serum MUC17 as a non‐invasive early warning biomarker for screening of gastric intraepithelial neoplasia
Bingxue Yang, Xiaoli Xie, Xiaoxu Jin, Xiuhong Huang, Yujian He, Kaige Yin, Chenguang Ji, Li Liu, Zhijie Feng
Translational Oncology.2025; 51: 102207. CrossRef
Pitfalls in Endoscopic Submucosal Dissection for Early Gastric Cancer with Papillary Adenocarcinoma
Gwang Ha Kim
Gut and Liver.2024; 18(3): 368. CrossRef
Edge Artificial Intelligence Device in Real-Time Endoscopy for Classification of Gastric Neoplasms: Development and Validation Study
Eun Jeong Gong, Chang Seok Bang, Jae Jun Lee
Biomimetics.2024; 9(12): 783. CrossRef

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Advanced endoscopic imaging for detection of Barrett’s esophagus: Netanel Zilberstein, Michelle Godbee, Neal A. Mehta, Irving Waxman; Clin Endosc 2024;57(1):1-10. Published online January 5, 2024; DOI: https://doi.org/10.5946/ce.2023.031

Abstract PDF PubReader ePub

Barrett’s esophagus (BE) is the precursor to esophageal adenocarcinoma (EAC), and is caused by chronic gastroesophageal reflux. BE can progress over time from metaplasia to dysplasia, and eventually to EAC. EAC is associated with a poor prognosis, often due to advanced disease at the time of diagnosis. However, if BE is diagnosed early, pharmacologic and endoscopic treatments can prevent progression to EAC. The current standard of care for BE surveillance utilizes the Seattle protocol. Unfortunately, a sizable proportion of early EAC and BE-related high-grade dysplasia (HGD) are missed due to poor adherence to the Seattle protocol and sampling errors. New modalities using artificial intelligence (AI) have been proposed to improve the detection of early EAC and BE-related HGD. This review will focus on AI technology and its application to various endoscopic modalities such as high-definition white light endoscopy, narrow-band imaging, and volumetric laser endomicroscopy.

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Gender disparities and woman-specific trends in Barrett’s esophagus in the United States: An 11-year nationwide population-based study
Karina Fatakhova, Faisal Inayat, Hassam Ali, Pratik Patel, Attiq Ur Rehman, Arslan Afzal, Muhammad Sarfraz, Shiza Sarfraz, Gul Nawaz, Ahtshamullah Chaudhry, Rubaid Dhillon, Arthur Dilibe, Benjamin Glazebnik, Lindsey Jones, Emily Glazer
World Journal of Methodology.2025;[Epub] CrossRef
Advancements in Barrett's esophagus detection: The role of artificial intelligence and its implications
Sara Massironi
World Journal of Gastroenterology.2024; 30(11): 1494. CrossRef
Advanced Esophageal Endoscopy
Kyoungwon Jung, Rebecca M. Haug, Andrew Y. Wang
Gastroenterology Clinics of North America.2024; 53(4): 603. CrossRef

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Endoscopic management of postoperative bleeding: Sung Hyeok Ryou, Ki Bae Bang; Clin Endosc 2023;56(6):706-715. Published online November 2, 2023; DOI: https://doi.org/10.5946/ce.2023.028

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Postoperative gastrointestinal bleeding is a rare but serious complication that can lead to prolonged hospitalization and significant morbidity and mortality. It can be managed by reoperation, endoscopy, or radiological intervention. Although reoperation carries risks, particularly in critically ill postoperative patients, minimally invasive interventions, such as endoscopy or radiological intervention, confer advantages. Endoscopy allows localization of the bleeding focus and hemostatic management at the same time. Although there have been concerns regarding the potential risk of creating an anastomotic disruption or perforation during early postoperative endoscopy, endoscopic management has become more popular over time. However, there is currently no consensus on the best endoscopic management for postoperative gastrointestinal bleeding because most practices are based on retrospective case series. Furthermore, there is a wide range of individual complexities in anatomical and clinical settings after surgery. This review focused on the safety and effectiveness of endoscopic management in various surgical settings.

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Gastrointestinale Endoskopie im postoperativen Komplikationsmanagement
Marcus Kantowski, Gabriel Alexander Salg
Allgemein- und Viszeralchirurgie up2date.2025; 19(01): 53. CrossRef
Letter to the editor on “early postoperative endoscopy for predicting anastomotic leakage after minimally invasive esophagectomy: A large-volume retrospective study”
Judith Sánchez-Zavaleta, Doyler Cubas-García
Surgery.2024; : 108890. CrossRef
Evaluating the efficacy of a novel hemostatic powder compared with traditional treatments in nonvariceal upper GI bleeding: a multicenter, randomized, noninferiority study
Da Hyun Jung, Jun Chul Park, Joon Sung Kim, Moon Won Lee, Hyuk Lee, Gwang Ha Kim
Gastrointestinal Endoscopy.2024;[Epub] CrossRef

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Stricturing Crohn's disease: what is the role of endoscopic stenting? A systematic review: Giorgia Burrelli Scotti, Roberto Lorenzetti, Annalisa Aratari, Antonietta Lamazza, Enrico Fiori, Claudio Papi, Stefano Festa; Clin Endosc 2023;56(6):726-734. Published online October 24, 2023; DOI: https://doi.org/10.5946/ce.2023.059

Graphical Abstract Abstract PDF PubReader ePub

Background
/Aims: Endoscopic stenting for stricturing Crohn's disease (CD) is an emerging treatment that achieves more persistent dilatation of the stricture over time than endoscopic balloon dilatation (EBD). We aimed to explore the efficacy and safety of stenting for the treatment of CD strictures.
Methods
A systematic electronic literature search was performed (PROSPERO; no. CRD42022308033). The primary outcomes were technical success, efficacy, complication rate, and the need for further interventions due to reobstruction. The outcomes of partially covered self-expanding metal stents (PCSEMS) with scheduled retrieval after seven days were also analyzed.
Results
Eleven eligible studies were included in the review. Overall, 173 patients with CD were included in this study. Mean percentage of technical success was 95% (range, 80%–100%), short-term efficacy was 100% in all studies, and long-term efficacy was 56% (range, 25%–90%). In patients with a scheduled PCSEMS retrieval, the long-term efficacy was 76% (range, 59%–90%), the mean complication rate was 35% (range, 15%–57%), and the major complication rate was 11% (range, 0%–29%).
Conclusions
Endoscopic stenting with scheduled PCSEMS retrieval may be considered a feasible second-line treatment for short CD strictures to postpone surgery. However, larger head-to-head prospective studies are needed to understand the role of stenting as an alternative or additional treatment to EBD in CD.

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Perioperative Considerations for the Surgical Treatment of Crohn’s Disease with Discussion on Surgical Antibiotics Practices and Impact on the Gut Microbiome
Shelbi Olson, Lindsay Welton, Cyrus Jahansouz
Antibiotics.2024; 13(4): 317. CrossRef

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Role of endoscopy in gastroesophageal reflux disease: Daniel Martin Simadibrata, Elvira Lesmana, Ronnie Fass; Clin Endosc 2023;56(6):681-692. Published online October 12, 2023; DOI: https://doi.org/10.5946/ce.2023.182

Abstract PDF PubReader ePub

In general, gastroesophageal reflux disease (GERD) is diagnosed clinically based on typical symptoms and/or response to proton pump inhibitor treatment. Upper gastrointestinal endoscopy is reserved for patients presenting with alarm symptoms, such as dysphagia, odynophagia, significant weight loss, gastrointestinal bleeding, or anorexia; those who meet the criteria for Barrett’s esophagus screening; those who report a lack or partial response to proton pump inhibitor treatment; and those with prior endoscopic or surgical anti-reflux interventions. Newer endoscopic techniques are primarily used to increase diagnostic yield and provide an alternative to medical or surgical treatment for GERD. The available endoscopic modalities for the diagnosis of GERD include conventional endoscopy with white-light imaging, high-resolution and high-magnification endoscopy, chromoendoscopy, image-enhanced endoscopy (narrow-band imaging, I- SCAN, flexible spectral imaging color enhancement, blue laser imaging, and linked color imaging), and confocal laser endomicroscopy. Endoscopic techniques for treating GERD include esophageal radiofrequency energy delivery/Stretta procedure, transoral incisionless fundoplication, and endoscopic full-thickness plication. Other novel techniques include anti-reflux mucosectomy, peroral endoscopic cardiac constriction, endoscopic submucosal dissection, and endoscopic band ligation. Currently, many of the new endoscopic techniques are not widely available, and their use is limited to centers of excellence.

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Exploring esophagogastric junction morphology and contractile integral: implications for refractory gastroesophageal reflux disease pathophysiology
Sihui Lin, Zhilong Chen, Wei Jiang, Yucheng Zhu
Scandinavian Journal of Gastroenterology.2025; 60(2): 130. CrossRef
Long-term efficacy of endoscopic radiofrequency Stretta therapy for patients with refractory gastroesophageal reflux disease
Sung Eun Kim
Clinical Endoscopy.2024; 57(1): 48. CrossRef
Correlation of Endoscopic and Histopathological Diagnoses in Upper Gastrointestinal Tract Lesions: A Cross-Sectional Study
Sudhasmita Rauta, Pratima Baisakh, Aswini K Sahoo, Dhiren K Panda, Manas R Baisakh, Sushree s Dash
Cureus.2024;[Epub] CrossRef
The role of ghrelin and leptin in the formation of morphological changes esophagus of patients with gastro-esophageal reflux disease against type 2 diabetes
Olha Bondar-Keleberda
EUREKA: Health Sciences.2023; (4): 24. CrossRef

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Current status of image-enhanced endoscopy in inflammatory bowel disease: Young Joo Yang; Clin Endosc 2023;56(5):563-577. Published online September 26, 2023; DOI: https://doi.org/10.5946/ce.2023.070

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In inflammatory bowel disease (IBD), chronic inflammation leads to unfavorable clinical outcomes and increases the risk of developing colorectal neoplasm (CRN); thereby highlighting the importance of endoscopically evaluating disease activity as well as detecting and characterizing CRN in patients with IBD. With recent advances in image-enhanced endoscopic (IEE) technologies, especially virtual chromoendoscopy (VCE) platforms, this review discusses state-of-the-art IEE techniques and their applicability in assessing disease activity and surveillance colonoscopy in patients with IBD. Among various IEE, VCE demonstrated the capacity to identify quiescent disease activity. And endoscopic remission defined by the new scoring system using VCE platform better predicted clinical outcomes, which may benefit the tailoring of therapeutic strategies in patients with IBD. High-definition dye-chromoendoscopy (HD-DCE) is numerically superior to high-definition white light endoscopy (HD-WLE) in detecting CRN in IBD; however, discrepancy is observed in the statistical significance. VCE showed comparable performance in detecting dysplasia to HD-WLE or DCE and potential for optical diagnosis to differentiate neoplastic from nonneoplastic lesions during surveillance colonoscopy. Applying these novel advanced IEE technologies would provide opportunities for personalized medicine in IBD and optimal treatment of CRN in patients with IBD.

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Advanced Endoscopic Imaging for Detection of Dysplasia in Inflammatory Bowel Disease
Laura Alexandra Lucaciu, Edward John Despott
Gastrointestinal Endoscopy Clinics of North America.2025; 35(1): 141. CrossRef
The application of the combination between artificial intelligence and endoscopy in gastrointestinal tumors
Shen Li, Maosen Xu, Yuanling Meng, Haozhen Sun, Tao Zhang, Hanle Yang, Yueyi Li, Xuelei Ma
MedComm – Oncology.2024;[Epub] CrossRef

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