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Most-read articles are from the articles published in 2022 during the last three month.

Reviews
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
AbstractAbstract PDFPubReaderePub
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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Forward viewing liner echoendoscopy for therapeutic interventions
Kazuo Hara, Nozomi Okuno, Shin Haba, Takamichi Kuwahara
Clin Endosc 2024;57(2):175-180.   Published online February 29, 2024
DOI: https://doi.org/10.5946/ce.2023.271
AbstractAbstract PDFPubReaderePub
Therapeutic endoscopic ultrasonography (EUS) procedures using the forward-viewing convex EUS (FV-EUS) have been reviewed based on the articles reported to date. The earliest reported procedure is the drainage of pancreatic pseudocysts using FV-EUS. However, the study on drainage of pancreatic pseudocysts focused on showing that drainage is possible with FV-EUS rather than leveraging its features. Subsequently, studies describing the characteristics of FV-EUS have been reported. By using FV-EUS in EUS-guided choledochoduodenostomy, double punctures in the gastrointestinal tract can be avoided. In postoperative modified anatomical cases, using the endoscopic function of FV-EUS, procedures such as bile duct drainage from anastomosis, pancreatic duct drainage from the afferent limb, and abscess drainage from the digestive tract have been reported. When a perpendicular puncture to the gastrointestinal tract is required or when there is a need to insert the endoscope deep into the gastrointestinal tract, FV-EUS is considered among the options.
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Systematic Review and Meta-analysis
Efficacy and safety of endoscopic submucosal dissection for colorectal dysplasia in patients with inflammatory bowel disease: a systematic review and meta-analysis
Talia F. Malik, Vaishnavi Sabesan, Babu P. Mohan, Asad Ur Rahman, Mohamed O. Othman, Peter V. Draganov, Gursimran S. Kochhar
Clin Endosc 2024;57(3):317-328.   Published online February 29, 2024
DOI: https://doi.org/10.5946/ce.2023.205
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background
/Aims: In this meta-analysis, we studied the safety and efficacy of endoscopic submucosal dissection (ESD) for colorectal dysplasia in patients with inflammatory bowel disease (IBD).
Methods
Multiple databases were searched, and studies were retrieved based on pre-specified criteria until October 2022. The outcomes assessed were resection rates, procedural complications, local recurrence, metachronous tumors, and the need for surgery after ESD in IBD. Standard meta-analysis methods were followed using the random-effects model, and I2% was used to assess heterogeneity.
Results
Twelve studies comprising 291 dysplastic lesions in 274 patients were included with a median follow-up of 25 months. The pooled en-bloc resection, R0 resection, and curative resection rates were 92.5% (95% confidence interval [CI], 87.9%–95.4%; I2=0%), 81.5% (95% CI, 72.5%–88%; I2=43%), and 48.9% (95% CI, 32.1%–65.9%; I2=87%), respectively. The local recurrence rate was 3.9% (95% CI, 2%–7.5%; I2=0%). The pooled rates of bleeding and perforation were 7.7% (95% CI, 4.5%–13%; I2=10%) and 5.3% (95% CI, 3.1%–8.9%; I2=0%), respectively. The rates of metachronous recurrence and additional surgery following ESD were 10% (95% CI, 5.2%–18.2%; I2=55%) and 13% (95% CI, 8.5%–19.3%; I2=54%), respectively.
Conclusions
ESD is safe and effective for the resection of dysplastic lesions in IBD with an excellent pooled rate of en-bloc and R0 resection.
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A rare colonoscopic finding in a renal transplant recipient
Ji Young Chang, Soo Jung Park
Clin Endosc 2024;57(3):415-416.   Published online March 22, 2024
DOI: https://doi.org/10.5946/ce.2024.007
PDFPubReaderePub
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Case Report
Polyposis of gastrointestinal tract after COVID-19 mRNA vaccination: a report of two cases
Jun Ho Kim, Eun Hye Oh, Dong Soo Han
Clin Endosc 2024;57(3):402-406.   Published online April 12, 2024
DOI: https://doi.org/10.5946/ce.2023.268
AbstractAbstract PDFPubReaderePub
Cronkhite-Canada syndrome is a rare gastrointestinal polyposis syndrome with distinctive clinical features and endoscopic findings. Diagnosis can be challenging without suspicion, and the disease carries high mortality due to complications such as infection, gastrointestinal bleeding, and malignancies. This paper presents two cases of Cronkhite-Canada syndrome occurring after coronavirus disease 2019 (COVID-19) mRNA vaccination. Both cases exhibited typical clinical findings, including hypogeusia, onychodystrophy, alopecia, and weight loss. Typical polyposis in the gastrointestinal tract was confirmed through endoscopies. As symptomatic treatment did not improve the symptoms, corticosteroids were administered, and symptoms and laboratory test results improved immediately. The patients improved upon corticosteroids tapering. These cases illustrate typical presentations of Cronkhite-Canada syndrome and the course of the disease following corticosteroid treatment. Additionally, they suggest the possibility that Cronkhite-Canada syndrome may be triggered by COVID-19 mRNA vaccination.
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Review
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
AbstractAbstract PDFPubReaderePub
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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Original Article
Endoscopic ultrasound-guided gastrojejunostomy with a direct technique without previous intestinal filling using a tubular fully covered self-expandable metallic stent
Hakan Şentürk, İbrahim Hakkı Köker, Koray Koçhan, Sercan Kiremitçi, Gülseren Seven, Ali Tüzün İnce
Clin Endosc 2024;57(2):209-216.   Published online July 3, 2023
DOI: https://doi.org/10.5946/ce.2023.022
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background
/Aims: Endoscopic ultrasonography-guided gastrojejunostomy is a minimally invasive method for the management of gastric outlet obstruction. Conventionally, a lumen-apposing metal stent (LAMS) is used to create an anastomosis. However, LAMS is expensive and not widely available. In this report, we described a tubular fully covered self-expandable metallic stent (T-FCSEMS) for this purpose.
Methods
Twenty-one patients (15 men [71.4%]; median age, 66 years; range, 40–87 years) were included in this study. A total of 19 malignant (12 pancreatic, 6 gastric, and 1 metastatic rectal cancer) and 2 benign cases were observed. The proximal jejunum was punctured with a 19 G needle. The stomach and jejunum walls were dilated with a 6 F cystotome, and a 20×80 mm polytetrafluoroethylene T-FCSEMS (Hilzo) was deployed. Oral feeding was initiated after 12 to 18 hours and solid foods after 48 hours.
Results
The median procedure time was 33 minutes (range, 23–55 minutes). After two weeks, 19 patients tolerated oral feeding. In patients with malignancy, the median survival time was 118 days (range, 41–194 days). No serious complications or deaths occurred. All patients with malignancy tolerated oral food intake until they expired.
Conclusions
T-FCSEMS is safe and effective. This stent should be considered as an alternative to LAMS for gastric outlet obstruction.

Citations

Citations to this article as recorded by  
  • Tubular fully covered self-expandable metallic stents for endoscopic ultrasound-guided gastrojejunostomy: moving forward or taking a step back?
    Rami G. El Abiad, Mouen A. Khashab
    Clinical Endoscopy.2024; 57(2): 193.     CrossRef
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  • 173 Download
  • 1 Crossref
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Systematic Review and Meta-analysis
Cryotherapy versus radiofrequency ablation in the treatment of dysplastic Barrett’s esophagus with or without early esophageal neoplasia: a systematic review and meta-analysis
Igor Logetto Caetité Gomes, Diogo Turiani Hourneaux de Moura, Igor Braga Ribeiro, Sérgio Barbosa Marques, Alexandre de Sousa Carlos, Beanie Conceição Medeiros Nunes, Bruno Salomão Hirsch, Guilherme Henrique Peixoto de Oliveira, Roberto Paolo Trasolini, Wanderley Marques Bernardo, Eduardo Guimarães Hourneaux de Moura
Clin Endosc 2024;57(2):181-190.   Published online January 17, 2024
DOI: https://doi.org/10.5946/ce.2023.065
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background
/Aims: Radiofrequency ablation (RFA) is the first-line therapy for dysplastic Barrett’s esophagus (BE). Therefore, cryotherapy has emerged as an alternative treatment option. This study aimed to compare the efficacies of these two techniques based on the rates of complete eradication of intestinal metaplasia (CE-IM) and dysplasia (CE-D). Adverse events and recurrence have also been reported.
Methods
An electronic search was conducted using the Medline (PubMed), Embase, LILACS, and Google Scholar databases until December 2022. Studies were included comparing cryotherapy and RFA for treating dysplastic BE with or without early esophageal neoplasia. This study was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.
Results
Three retrospective cohort studies involving 627 patients were included. Of these, 399 patients underwent RFA, and 228 were treated with cryotherapy. There was no difference in CE-IM (risk difference [RD], –0.03; 95% confidence interval [CI], –0.25 to 0.19; p=0.78; I2=86%) as well as in CE-D (RD, –0.03; 95% CI, –0.15 to 0.09; p=0.64; I2=70%) between the groups. The absolute number of adverse events was low, and there was no difference in the recurrence rate.
Conclusions
Cryotherapy and RFA were equally effective in treating dysplastic BE, with or without early esophageal neoplasia.
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Review
Role of contrast-enhanced harmonic endoscopic ultrasonography (EUS) and EUS elastography in pancreatic lesions
Yasunobu Yamashita, Masayuki Kitano
Clin Endosc 2024;57(2):164-174.   Published online January 17, 2024
DOI: https://doi.org/10.5946/ce.2023.074
AbstractAbstract PDFPubReaderePub
Pancreatic cancers have a poor prognosis, and their incident rates have risen. Endoscopic ultrasonography (EUS) is an efficient and reliable diagnostic modality for pancreatic lesions, providing high spatial resolution. However, while EUS helps to detect minor pancreatic lesions, nearly all solid pancreatic lesions are hypoechoic, which creates difficulty in making differential diagnoses of pancreatic lesions. When diagnosing pancreatic lesions, the performance of image-enhanced EUS techniques is essential, such as EUS elastography or contrast-enhanced harmonic EUS (CH-EUS). CH-EUS diagnosis is based on assessing the vascularity of lesions, whereas tissue elasticity is measured via EUS elastography. Elastography is either strain or shear-wave, depending on the different mechanical properties being evaluated. The usefulness of enhanced EUS techniques is demonstrated in this review for the differential diagnosis of pancreatic lesions, including solid and cystic lesions, and pancreatic cancer staging.

Citations

Citations to this article as recorded by  
  • Endoscopic Contrast-Enhanced Ultrasound and Fine-Needle Aspiration or Biopsy for the Diagnosis of Pancreatic Solid Lesions: A Systematic Review and Meta-Analysis
    Giorgio Esposto, Giuseppe Massimiani, Linda Galasso, Paolo Santini, Raffaele Borriello, Irene Mignini, Maria Elena Ainora, Alberto Nicoletti, Lorenzo Zileri Dal Verme, Antonio Gasbarrini, Sergio Alfieri, Giuseppe Quero, Maria Assunta Zocco
    Cancers.2024; 16(9): 1658.     CrossRef
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  • 202 Download
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Whitish gastric mucosa on upper gastrointestinal endoscopy
Eun Jeong Gong, Chang Seok Bang
Clin Endosc 2024;57(2):277-279.   Published online March 25, 2024
DOI: https://doi.org/10.5946/ce.2024.016
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Original Article
Double-guidewire technique for selective biliary cannulation does not increase the rate of post-endoscopic retrograde cholangiopancreatography pancreatitis in patients with naïve papilla
Han Taek Jeong, June Hwa Bae, Ho Gak Kim, Jimin Han
Clin Endosc 2024;57(2):226-236.   Published online January 26, 2024
DOI: https://doi.org/10.5946/ce.2023.128
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: This study aimed to compare the safety of the double-guidewire technique (DGT) with that of the conventional single-guidewire technique (SGT) in real-world situations.
Methods
A total of 240 patients with naïve papilla who underwent endoscopic retrograde cholangiopancreatography (ERCP) at Daegu Catholic University Medical Center between January 2021 and December 2021 were included. The primary outcome was the rate of post-ERCP pancreatitis (PEP) in the SGT and DGT groups.
Results
A total of 163 patients (67.9%) belonged to the SGT group, and 77 (32.1%) belonged to the DGT group. The rates of successful biliary cannulation were 95.7% and 83.1% in the SGT and DGT groups, respectively (p=0.002). In the study group, PEP occurred in 14 patients (5.8%). The PEP rates were not significantly different between the SGT and DGT groups (4.3% vs. 9.1%, p=0.150). In the multivariate analysis, the age of <50 years (odds ratio [OR], 9.305; 95% confidence interval [CI], 1.367–63.358; p=0.023) and hyperlipidemia (OR, 7.384; 95% CI, 1.103–49.424; p=0.039) were significant risk factors for PEP in the DGT group.
Conclusions
DGT did not increase the PEP rate in patients with naïve papilla. In addition, the age of <50 years and hyperlipidemia were significant risk factors for PEP in the DGT group.
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Editorials
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Tubular fully covered self-expandable metallic stents for endoscopic ultrasound-guided gastrojejunostomy: moving forward or taking a step back?
Rami G. El Abiad, Mouen A. Khashab
Clin Endosc 2024;57(2):193-195.   Published online February 22, 2024
DOI: https://doi.org/10.5946/ce.2023.248
PDFPubReaderePub
  • 2,068 View
  • 171 Download
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Original Article
Impact of a simple non-invasive nasal mask device on intraprocedural hypoxemia in overweight individuals undergoing upper gastrointestinal endoscopy with sedation provided by a non-anesthesiologist provider
Jan Drews, Jonas Harder, Hannah Kaiser, Miriam Soenarjo, Dorothee Spahlinger, Peter Wohlmuth, Sebastian Wirtz, Ralf Eberhardt, Florian Bornitz, Torsten Bunde, Thomas von Hahn
Clin Endosc 2024;57(2):196-202.   Published online June 27, 2023
DOI: https://doi.org/10.5946/ce.2023.010
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Hypoxemia is a common side effect of propofol sedation during endoscopy. Applying mild positive airway pressure (PAP) using a nasal mask may offer a simple way to reduce such events and optimize the conditions for diagnostic and therapeutic upper gastrointestinal endoscopies.
Methods
We compared overweight patients (body mass index >25 kg/m2) with a nasal PAP mask or standard nasal cannula undergoing upper gastrointestinal endoscopies by non-anesthesiologists who provided propofol sedation. Outcome parameters included the frequency and severity of hypoxemic episodes.
Results
We analyzed 102 procedures in 51 patients with nasal PAP masks and 51 controls. Episodes of hypoxemia (oxygen saturation [SpO2] <90% at any time during sedation) occurred in 25 (49.0%) controls compared to 8 (15.7%) patients with nasal PAP masks (p<0.001). Severe hypoxemia (SpO2 <80%) occurred in three individuals (5.9%) in both groups. The mean delta between baseline SpO2 and the lowest SpO2 recorded was significantly decreased among patients with nasal PAP mask compared to controls (3.7 and 8.2 percentage points difference, respectively). There were significantly fewer airway interventions performed in the nasal PAP mask group (15.7% vs. 41.2%, p=0.008).
Conclusions
Using a nasal PAP mask may be a simple means of increasing patient safety and ease of examination.
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Brief Report
Black esophagus: a life-threatening adverse event associated with endoscopic retrograde cholangiopancreatography
Koh Kitagawa, Hiroyuki Masuda, Akira Mitoro, Fumimasa Tomooka, Shohei Asada, Norihisa Nishimura, Kosuke Kaji, Hitoshi Yoshiji
Clin Endosc 2024;57(2):270-273.   Published online May 23, 2023
DOI: https://doi.org/10.5946/ce.2023.047
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Review
Quality indicators of endoscopic ultrasound in the pancreatobiliary system: a brief review of current guidelines
Sung Yong Han, Hyung Ku Chon, Seong-Hun Kim, Sang Hyub Lee, The Research Group for Endoscopic Ultrasound in Korean Society of Gastrointestinal Endoscopy
Clin Endosc 2024;57(2):158-163.   Published online June 9, 2023
DOI: https://doi.org/10.5946/ce.2023.064
AbstractAbstract PDFPubReaderePub
Since its development, the use of endoscopic ultrasonography (EUS) in the pancreas and the biliary tract has become increasingly important. The accuracy of EUS varies depending on the experience of the endoscopist. Hence, quality control measures using appropriate indicators are required to reduce these variations. American Society for Gastrointestinal Endoscopy and European Society of Gastrointestinal Endoscopy have announced the EUS quality indicators. Here, we reviewed the quality indicators of the EUS procedure in the current published guidelines.

Citations

Citations to this article as recorded by  
  • A remnant cystic duct presenting as a duodenal subepithelial tumor
    Gwang Ha Kim, Dong Chan Joo
    Clinical Endoscopy.2024; 57(2): 268.     CrossRef
  • 2,417 View
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Case Report
Single-pigtail plastic stent made from endoscopic nasobiliary drainage tubes in endoscopic ultrasound-guided gallbladder drainage: a retrospective case series
Koichi Soga
Clin Endosc 2024;57(2):263-267.   Published online April 4, 2023
DOI: https://doi.org/10.5946/ce.2022.213
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Technical failure of endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) is often attributed to device failure. To rectify this problem, we developed a single-pigtail plastic stent (SPPS) for EUS-GBD. We retrospectively reviewed the cases of four patients who underwent EUS-GBD for acute cholecystitis. To prepare the SPPS, a 7.5-Fr endoscopic nasobiliary drainage tube was cut to an appropriate length. The use of SPPS during EUS-GBD was successful from both technical and clinical standpoints. The SPPS spontaneously detached 57 days after the procedure in patient 4 and 412 days after the procedure in patient 1. Patient 1 developed cholecystitis after 426 days and was managed with antibiotics. The other three patients did not develop any complications after surgery. In conclusion, we designed a new SPPS dedicated to EUS-GBD and established its technical feasibility and clinical effectiveness.

Citations

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  • Usefulness of inserting a modified single‐pigtail plastic stent into a metallic stent in endoscopic ultrasound-guided gallbladder drainage
    Koichi Soga
    Endoscopy.2023; 55(S 01): E1081.     CrossRef
  • 2,289 View
  • 171 Download
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Editorial
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Video of Issue
A remnant cystic duct presenting as a duodenal subepithelial tumor
Gwang Ha Kim, Dong Chan Joo
Clin Endosc 2024;57(2):268-269.   Published online February 2, 2024
DOI: https://doi.org/10.5946/ce.2023.275
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Original Articles
Safety of endoscopic ultrasound-guided hepaticogastrostomy in patients with malignant biliary obstruction and ascites
Tsukasa Yasuda, Kazuo Hara, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Nozomi Okuno, Yasuhiro Kuraishi, Takafumi Yanaidani, Sho Ishikawa, Masanori Yamada, Toshitaka Fukui
Clin Endosc 2024;57(2):246-252.   Published online September 7, 2023
DOI: https://doi.org/10.5946/ce.2023.075
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background
/Aims: Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (EUS-HGS) is useful for patients with biliary cannulation failure or inaccessible papillae. However, it can lead to serious complications such as bile peritonitis in patients with ascites; therefore, development of a safe method to perform EUS-HGS is important. Herein, we evaluated the safety of EUS-HGS with continuous ascitic fluid drainage in patients with ascites.
Methods
Patients with moderate or severe ascites who underwent continuous ascites drainage, which was initiated before EUS-HGS and terminated after the procedure at our institution between April 2015 and December 2022, were included in the study. We evaluated the technical and clinical success rates, EUS-HGS-related complications, and feasibility of re-intervention.
Results
Ten patients underwent continuous ascites drainage, which was initiated before EUS-HGS and terminated after completion of the procedure. Median duration of ascites drainage before and after EUS-HGS was 2 and 4 days, respectively. Technical success with EUS-HGS was achieved in all 10 patients (100%). Clinical success with EUS-HGS was achieved in 9 of the 10 patients (90 %). No endoscopic complications such as bile peritonitis were observed.
Conclusions
In patients with ascites, continuous ascites drainage, which is initiated before EUS-HGS and terminated after completion of the procedure, may prevent complications and allow safe performance of EUS-HGS.

Citations

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  • Management of iatrogenic perforations during endoscopic interventions in the hepato-pancreatico-biliary tract
    Kirsten Boonstra, Rogier P. Voermans, Roy L.J. van Wanrooij
    Best Practice & Research Clinical Gastroenterology.2024; : 101890.     CrossRef
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  • 171 Download
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Performance comparison between two computer-aided detection colonoscopy models by trainees using different false positive thresholds: a cross-sectional study in Thailand
Kasenee Tiankanon, Julalak Karuehardsuwan, Satimai Aniwan, Parit Mekaroonkamol, Panukorn Sunthornwechapong, Huttakan Navadurong, Kittithat​ Tantitanawat, Krittaya Mekritthikrai, Salin Samutrangsi, Peerapon Vateekul, Rungsun Rerknimitr
Clin Endosc 2024;57(2):217-225.   Published online February 7, 2024
DOI: https://doi.org/10.5946/ce.2023.145
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background
/Aims: This study aims to compare polyp detection performance of “Deep-GI,” a newly developed artificial intelligence (AI) model, to a previously validated AI model computer-aided polyp detection (CADe) using various false positive (FP) thresholds and determining the best threshold for each model.
Methods
Colonoscopy videos were collected prospectively and reviewed by three expert endoscopists (gold standard), trainees, CADe (CAD EYE; Fujifilm Corp.), and Deep-GI. Polyp detection sensitivity (PDS), polyp miss rates (PMR), and false-positive alarm rates (FPR) were compared among the three groups using different FP thresholds for the duration of bounding boxes appearing on the screen.
Results
In total, 170 colonoscopy videos were used in this study. Deep-GI showed the highest PDS (99.4% vs. 85.4% vs. 66.7%, p<0.01) and the lowest PMR (0.6% vs. 14.6% vs. 33.3%, p<0.01) when compared to CADe and trainees, respectively. Compared to CADe, Deep-GI demonstrated lower FPR at FP thresholds of ≥0.5 (12.1 vs. 22.4) and ≥1 second (4.4 vs. 6.8) (both p<0.05). However, when the threshold was raised to ≥1.5 seconds, the FPR became comparable (2 vs. 2.4, p=0.3), while the PMR increased from 2% to 10%.
Conclusions
Compared to CADe, Deep-GI demonstrated a higher PDS with significantly lower FPR at ≥0.5- and ≥1-second thresholds. At the ≥1.5-second threshold, both systems showed comparable FPR with increased PMR.
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22-gauge Co-Cr versus stainless-steel Franseen needles for endoscopic ultrasound-guided tissue acquisition in patients with solid pancreatic lesions
Yuki Tanisaka, Masafumi Mizuide, Akashi Fujita, Ryuhei Jinushi, Rie Shiomi, Takahiro Shin, Kei Sugimoto, Tomoaki Tashima, Yumi Mashimo, Shomei Ryozawa
Clin Endosc 2024;57(2):237-245.   Published online January 26, 2024
DOI: https://doi.org/10.5946/ce.2023.011
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Endoscopic ultrasound-guided tissue acquisition (EUS-TA) using Franseen needles is reportedly useful for its high diagnostic yield. This study compared the diagnostic yield and puncturing ability of EUS-TA using 22-gauge cobalt-chromium (CO-Cr) needles with those of stainless-steel Franseen needles in patients with solid pancreatic lesions.
Methods
Outcomes were compared between the 22-gauge Co-Cr Franseen needle (December 2019 to November 2020; group C) and stainless-steel needle (November 2020 to May 2022; group S).
Results
A total of 155 patients (group C, 75; group S, 80) were eligible. The diagnostic accuracy was 92.0% in group C and 96.3% in group S with no significant intergroup differences (p=0.32). The rate of change in the operator (from training fellows to experts) was 20.0% (15/75) in group C and 7.5% (6/80) in group S. Stainless-steel Franseen needles showed less inter-operator difference than Co-Cr needles (p=0.03).
Conclusions
Both Co-Cr and stainless-steel Franseen needles showed high diagnostic ability. Stainless-steel Franseen needles are soft and flexible; therefore, the range of puncture angles can be widely adjusted, making them suitable for training fellows to complete the procedure.
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Letter to the Editor
Comments on ‘Safety and feasibility of opening window fistulotomy as a new precutting technique for primary biliary access in endoscopic retrograde cholangiopancreatography’
Masood Muhammad Karim, Adeel Ur Rehman, Faisal Wasim Ismail, Om Parkash
Clin Endosc 2024;57(2):280-281.   Published online February 1, 2024
DOI: https://doi.org/10.5946/ce.2023.228
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Brief Report
Use of an endoscopic powered debridement device for treatment of post-surgical fatty pancreatic necrosis
Judy Daboul, Shiab Mussad, Anna Cecilia Amaral, Waleed K. Hussain, Peter J. Lee, Samuel Han
Clin Endosc 2024;57(3):412-414.   Published online February 23, 2024
DOI: https://doi.org/10.5946/ce.2023.120
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Original Article
Risk factors for recurrent stenosis after balloon dilation for benign hepaticojejunostomy anastomotic stricture
Takafumi Mie, Takashi Sasaki, Takeshi Okamoto, Tsuyoshi Takeda, Chinatsu Mori, Yuto Yamada, Takaaki Furukawa, Akiyoshi Kasuga, Masato Matsuyama, Masato Ozaka, Naoki Sasahira
Clin Endosc 2024;57(2):253-262.   Published online May 16, 2023
DOI: https://doi.org/10.5946/ce.2022.216
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Hepaticojejunostomy anastomotic stricture (HJAS) is a feared adverse event associated with hepatopancreatobiliary surgery. Although balloon dilation for benign HJAS during endoscopic retrograde cholangiopancreatography with balloon-assisted enteroscopy has been reported to be useful, the treatment strategy remains controversial. Therefore, we evaluated the outcomes and risk factors of recurrent stenosis after balloon dilation alone for benign HJAS.
Methods
We retrospectively analyzed consecutive patients who underwent balloon-assisted enteroscopy–endoscopic retrograde cholangiopancreatography for benign HJAS at our institution between July 2014 and December 2020.
Results
Forty-six patients were included, 16 of whom had recurrent HJAS after balloon dilation. The patency rates at 1 and 2 years after balloon dilation were 76.8% and 64.2%, respectively. Presence of a residual balloon notch during balloon dilation was an independent predictor of recurrence (hazard ratio, 2.80; 95% confidence interval, 1.01–7.78; p=0.048), whereas HJAS within postoperative 1 year tended to be associated with recurrence (hazard ratio, 2.43; 95% confidence interval, 0.85–6.89; p=0.096). The patency rates in patients without a residual balloon notch were 82.1% and 73.1% after 1 and 2 years, respectively.
Conclusions
Balloon dilation alone may be a viable option for patients with benign HJAS without residual balloon notches on fluoroscopy.
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Reviews
Role of endoscopy in patients with achalasia
So Young Han, Young Hoon Youn
Clin Endosc 2023;56(5):537-545.   Published online June 2, 2023
DOI: https://doi.org/10.5946/ce.2023.001
AbstractAbstract PDFPubReaderePub
Achalasia is an esophageal motility disorder characterized by impaired lower esophageal sphincter relaxation and peristalsis of the esophageal body. With the increasing prevalence of achalasia, interest in the role of endoscopy in its diagnosis, treatment, and monitoring is also growing. The major diagnostic modalities for achalasia include high-resolution manometry, esophagogastroduodenoscopy, and barium esophagography. Endoscopic assessment is important for early diagnosis to rule out diseases that mimic achalasia symptoms, such as pseudo-achalasia, esophageal cancer, esophageal webs, and eosinophilic esophagitis. The major endoscopic characteristics suggestive of achalasia include a widened esophageal lumen and food residue in the esophagus. Once diagnosed, achalasia can be treated either endoscopically or surgically. The preference for endoscopic treatment is increasing owing to its minimal invasiveness. Botulinum toxins, pneumatic balloon dilation, and peroral endoscopic myotomy (POEM) are important endoscopic treatments. Previous studies have demonstrated excellent treatment outcomes for POEM, with >95% improvement in dysphagia, making POEM the mainstay treatment option for achalasia. Several studies have reported an increased risk of esophageal cancer in patients with achalasia. However, routine endoscopic surveillance remains controversial owing to the lack of sufficient data. Further studies on surveillance methods and duration are warranted to establish concordant guidelines for the endoscopic surveillance of achalasia.

Citations

Citations to this article as recorded by  
  • Case of Concomitant Endoscopic Treatment of Achalasia with Superficial Esophageal Cancer
    Myung-Hun Lee, Kyoungwon Jung, Jae Hyun Kim, Sung Eun Kim, Won Moon, Moo In Park, Seun Ja Park
    The Korean Journal of Gastroenterology.2023; 82(5): 248.     CrossRef
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Endoscopic activity in inflammatory bowel disease: clinical significance and application in practice
Kyeong Ok Kim
Clin Endosc 2022;55(4):480-488.   Published online July 28, 2022
DOI: https://doi.org/10.5946/ce.2022.108
AbstractAbstract PDFPubReaderePub
Endoscopy is vital for diagnosing, assessing treatment response, and monitoring surveillance in patients with inflammatory bowel disease (IBD). With the growing importance of mucosal healing as a treatment target, the assessment of disease activity by endoscopy has been accepted as the standard of care for IBD. There are many endoscopic activity indices for facilitating standardized reporting of the gastrointestinal mucosal appearance in IBD, and each index has its strengths and weaknesses. Although most endoscopic indices do not have a clear-cut validated definition, endoscopic remission or mucosal healing is associated with favorable outcomes, such as a decreased risk of relapse. Therefore, experts suggest utilizing endoscopic indices for monitoring disease activity and optimizing treatment to achieve remission. However, the regular monitoring of endoscopic activity is limited in practice owing to several factors, such as the complexity of the procedure, time consumption, inter-observer variability, and lack of a clear-cut, validated definition of endoscopic response or remission. Although experts have recently suggested consensus-based definitions, further studies are needed to define the values that can predict long-term outcomes.

Citations

Citations to this article as recorded by  
  • Ocular endothelial dysfunction in pediatric inflammatory bowel disease
    Giovanni Di Nardo, Mariachiara Di Pippo, Letizia Zenzeri, Maurizio Mennini, Marisa Piccirillo, Silvia Furio, Giovanna Quatrale, Melania Evangelisti, Pasquale Parisi, Livia Lucchini, Alessandro Ferretti, Maria Pia Villa, Gianluca Scuderi, David Sarzi Amadè
    Journal of Pediatric Gastroenterology and Nutrition.2024;[Epub]     CrossRef
  • Different levels of healing in inflammatory bowel diseases: mucosal, histological, transmural, barrier and complete healing
    Markus F Neurath, Michael Vieth
    Gut.2023; 72(11): 2164.     CrossRef
  • Use of Standardized Inflammatory Bowel Disease Endoscopy Scores in Clinical Practice
    Jill K J Gaidos, Badr Al Bawardy, Francis A Farraye, Miguel Regueiro
    Crohn's & Colitis 360.2023;[Epub]     CrossRef
  • Plasminogen Activator Inhibitor 1 Is a Novel Faecal Biomarker for Monitoring Disease Activity and Therapeutic Response in Inflammatory Bowel Diseases
    Boldizsár Jójárt, Tamás Resál, Diána Kata, Tünde Molnár, Péter Bacsur, Viktória Szabó, Árpád Varga, Kata Judit Szántó, Petra Pallagi, Imre Földesi, Tamás Molnár, József Maléth, Klaudia Farkas
    Journal of Crohn's and Colitis.2023;[Epub]     CrossRef
  • Evaluation of Disease Activity in Inflammatory Bowel Disease: Diagnostic Tools in the Assessment of Histological Healing
    Alina Ecaterina Jucan, Otilia Gavrilescu, Mihaela Dranga, Iolanda Valentina Popa, Ioana-Ruxandra Mihai, Vasile-Claudiu Mihai, Gabriela Stefanescu, Vasile Liviu Drug, Cristina Cijevschi Prelipcean, Radu-Alexandru Vulpoi, Oana-Bogdana Barboi, Irina Ciortesc
    Biomedicines.2023; 11(11): 3090.     CrossRef
  • Active Assessment of Inflammatory Bowel Disease
    金良 肖
    Advances in Clinical Medicine.2022; 12(12): 11023.     CrossRef
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Original Article
Novel upper gastrointestinal bleeding sensor capsule: a first human feasibility and safety trial
Lukas Bajer, Marvin Ryou, Christopher C. Thompson, Pavel Drastich
Clin Endosc 2024;57(2):203-208.   Published online January 17, 2024
DOI: https://doi.org/10.5946/ce.2023.111
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Upper gastrointestinal bleeding (UGIB) is the most common GI condition requiring hospitalization, and can be diagnosed by direct visualization. The present study aimed to evaluate the safety and feasibility of using the PillSense system (EnteraSense Ltd.), a novel diagnostic tool designed for the rapid in vivo detection of UGIB, in human volunteers.
Methods
In the present study, 10 volunteers swallowed a PillSense capsule, followed by 2 servings of an autologous blood preparation. Participants were monitored for capsule passage, overall tolerability of the procedure, and adverse events.
Results
The procedure was completed per the protocol established in the present study in 9/10 cases. In 9 of the subjects, after capsule ingestion, the device indicated the absence of blood with sensor output values of 1. After the ingestion of the first blood mixture, the sensor outputs of all devices increased from 2.8 to 4, indicating that each camera detected blood. The sensor output remained within that range after the ingestion of the second mixture; however, in one case, the baseline capsule signal was positive, because of a preexisting condition. The passage of the capsule was verified in all patients, and no adverse events were reported.
Conclusions
The first trial of the PillSense system in human subjects demonstrated the feasibility, safety, and tolerability of utilizing this product as a novel, noninvasive, and easy-to-use triage tool for the diagnosis of patients suspected of having UGIB.

Citations

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  • Could a bleeding-sensor device be established as a new paradigm for detecting upper gastrointestinal bleeding before performing endoscopy?
    Sun Gyo Lim
    Clinical Endoscopy.2024; 57(2): 191.     CrossRef
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Brief Report
Unroofing of subepithelial lesions in the upper gastrointestinal tract using cold snare: an easy and efficient technique for diagnosis
Bernhard Morell, Frans Olivier The, Christoph Gubler, Fritz Ruprecht Murray
Clin Endosc 2024;57(2):274-276.   Published online August 1, 2023
DOI: https://doi.org/10.5946/ce.2023.091
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Review
Korean guidelines for postpolypectomy colonoscopic surveillance: 2022 revised edition
Su Young Kim, Min Seob Kwak, Soon Man Yoon, Yunho Jung, Jong Wook Kim, Sun-Jin Boo, Eun Hye Oh, Seong Ran Jeon, Seung-Joo Nam, Seon-Young Park, Soo-Kyung Park, Jaeyoung Chun, Dong Hoon Baek, Mi-Young Choi, Suyeon Park, Jeong-Sik Byeon, Hyung Kil Kim, Joo Young Cho, Moon Sung Lee, Oh Young Lee, Korean Society of Gastrointestinal Endoscopy, Korean Society of Gastroenterology, Korean Association for the Study of Intestinal Diseases
Clin Endosc 2022;55(6):703-725.   Published online October 13, 2022
DOI: https://doi.org/10.5946/ce.2022.136
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for the management of advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: (1) adenoma ≥10 mm in size; (2) 3 to 5 (or more) adenomas; (3) tubulovillous or villous adenoma; (4) adenoma containing high-grade dysplasia; (5) traditional serrated adenoma; (6) sessile serrated lesion (SSL) containing any grade of dysplasia; (7) serrated polyp of at least 10 mm in size; and (8) 3 to 5 (or more) SSLs. More studies are needed to fully comprehend the patients most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.

Citations

Citations to this article as recorded by  
  • Association between Atherosclerosis and High-Risk Colorectal Adenomas based on Cardio-Ankle Vascular Index and Ankle-Brachial Index
    Jung Ho Lee, Hyunseok Cho, Sang Hoon Lee, Sung Joon Lee, Chang Don Kang, Dae Hee Choi, Jin Myung Park, Seung-Joo Nam, Tae Suk Kim, Ji Hyun Kim, Sung Chul Park
    The Korean Journal of Gastroenterology.2024; 83(4): 143.     CrossRef
  • Korean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 Revision
    Su Young Kim
    The Korean Journal of Medicine.2023; 98(3): 102.     CrossRef
  • Detecting colorectal lesions with image-enhanced endoscopy: an updated review from clinical trials
    Mizuki Nagai, Sho Suzuki, Yohei Minato, Fumiaki Ishibashi, Kentaro Mochida, Ken Ohata, Tetsuo Morishita
    Clinical Endoscopy.2023; 56(5): 553.     CrossRef
  • Understanding colorectal polyps to prevent colorectal cancer
    Dong-Hoon Yang
    Journal of the Korean Medical Association.2023; 66(11): 626.     CrossRef
  • Classification and endoscopic diagnosis of colorectal polyps
    Ji Hyun Kim, Sung Chul Park
    Journal of the Korean Medical Association.2023; 66(11): 633.     CrossRef
  • Endoscopic treatment of colorectal polyps and early colorectal cancer
    Yunho Jung
    Journal of the Korean Medical Association.2023; 66(11): 642.     CrossRef
  • Strategy for post-polypectomy colonoscopy surveillance: focus on the revised Korean guidelines
    Yong Soo Kwon, Su Young Kim
    Journal of the Korean Medical Association.2023; 66(11): 652.     CrossRef
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