Original Articles
-
Medical disputes related to advanced endoscopic procedures with endoscopic retrograde cholangiopancreatography or endoscopic ultrasonography for the management of pancreas and biliary tract diseases
-
Yoon Suk Lee, Jae-Young Jang, Jun Yong Bae, Eun Hye Oh, Yehyun Park, Yong Hwan Kwon, Jeong Eun Shin, Jun Kyu Lee, Tae Hee Lee, Chang Nyol Paik
-
Clin Endosc 2023;56(4):499-509. Published online March 28, 2023
-
DOI: https://doi.org/10.5946/ce.2022.208
-
-
Graphical Abstract
Abstract
PDF
Supplementary Material
PubReader
ePub

- Background
/Aims: This study aimed to evaluate the characteristics of endoscopic retrograde cholangiopancreatography (ERCP) or endoscopic ultrasonography (EUS)-related adverse events (AEs) that eventually lead to medical disputes or claims on medical professional liability.
Methods
Medical disputes for ERCP/EUS-related AEs filed in the Korea Medical Dispute Mediation and Arbitration Agency between April 2012 and August 2020 were evaluated using corresponding medical records. AEs were categorized into three sections: procedure-related, sedation-related, and safety-related AEs.
Results
Among a total of 34 cases, procedure-related AEs were 26 (76.5%; 12 duodenal perforations, 7 post-ERCP pancreatitis, 5 bleedings, 2 perforations combined with post-ERCP pancreatitis); sedation-related AEs were 5 (14.7%; 4 cardiac arrests, 1 desaturation), and safety-related AEs were 5 (8.8%; 1 follow-up loss for stent removal, 1 asphyxia, 1 fall). Regarding clinical outcomes, 20 (58.8%) were fatal and eventually succumbed to AEs. For the types of medical institutions, 21 cases (61.8%) occurred at tertiary or academic hospitals, and 13 (38.2%) occurred at community hospitals.
Conclusions
The ERCP/EUS-related AEs filed in Korea Medical Dispute Mediation and Arbitration Agency showed distinct features: duodenal perforation was the most frequent AE, and clinical outcomes were fatal, resulting in at least more than permanent physical impairment.
-
Citations
Citations to this article as recorded by

- Diagnostic Assessment of Endoscopic Ultrasonography–Fine Needle Aspiration Cytology in the Pancreas: A Comparison between Liquid-Based Preparation and Conventional Smear
Jung-Soo Pyo, Dae Hyun Lim, Kyueng-Whan Min, Nae Yu Kim, Il Hwan Oh, Byoung Kwan Son
Medicina.2024; 60(6): 930. CrossRef
-
2,923
View
-
121
Download
-
1
Web of Science
-
1
Crossref
-
Comparison of diagnostic performances of slow-pull suction and standard suction in endoscopic ultrasound-guided fine needle biopsy for gastrointestinal subepithelial tumors
-
Joon Seop Lee, Chang Min Cho, Yong Hwan Kwon, An Na Seo, Han Ik Bae, Man-Hoon Han
-
Clin Endosc 2022;55(5):637-644. Published online August 17, 2022
-
DOI: https://doi.org/10.5946/ce.2021.257
-
-
Abstract
PDF
PubReader
ePub
- Background
/Aims: Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) is integral to the diagnosis of gastrointestinal (GI) subepithelial tumors (SETs). The impact of different EUS-FNB tissue sampling techniques on specimen adequacy and diagnostic accuracy in SETs has not been fully evaluated. This study aimed to compare the diagnostic outcomes of slow-pull (SP) and standard suction (SS) in patients with GI SETs.
Methods
In this retrospective comparative study, 54 patients were enrolled. Medical records were reviewed for location and size of the target lesion, FNB needle type/size, technical order, specimen adequacy, diagnostic yield, and adverse events. The acquisition rate of adequate specimens and diagnostic accuracy were compared according to EUS-FNB techniques.
Results
The mean lesion size was 42.6±36.4 mm, and most patients were diagnosed with GI stromal tumor (75.9%). The overall diagnostic accuracies of the SP and SS techniques were 83.3% and 81.5%, respectively (p=0.800). The rates of obtaining adequate core tissue were 79.6% and 75.9%, respectively (p=0.799). No significant clinical factors affected the rate of obtaining adequate core tissue, including lesion location and size, FNB needle size, and final diagnosis.
Conclusions
SP and SS had comparable diagnostic accuracies and adequate core tissue acquisition for GI SETs via EUS-FNB.
-
Citations
Citations to this article as recorded by

- Advancements in endoscopic resection of subepithelial tumors: toward safer, recurrence-free techniques
Won Shik Kim, Moon Kyung Joo
Clinical Endoscopy.2025; 58(2): 256. CrossRef - Endoscopic ultrasound-guided fine-needle aspiration for gastrointestinal subepithelial lesions
Takuto Hikichi, Minami Hashimoto, Takumi Yanagita, Tsunetaka Kato, Jun Nakamura
Journal of Medical Ultrasonics.2024; 51(2): 195. CrossRef - What method can we choose if rapid on-site evaluation is not available for the endoscopic ultrasound-guided tissue acquisition of upper gastrointestinal subepithelial lesions?
Yu Kyung Cho
Clinical Endoscopy.2024; 57(1): 53. CrossRef - The Diagnostic Approach of Benign Esophageal Tumors: A Narrative Review
Alex R. Jones, Preksha Vankawala, Tarek Sawas
Current Treatment Options in Gastroenterology.2024; 22(2): 44. CrossRef - Diagnostic yield of endoscopic and EUS-guided biopsy techniques in subepithelial lesions of the upper GI tract: a systematic review
Cynthia A. Verloop, Jacqueline A.C. Goos, Marco J. Bruno, Rutger Quispel, Lydi M.J.W. van Driel, Lieke Hol
Gastrointestinal Endoscopy.2024; 99(6): 895. CrossRef - EUS‐guided tissue acquisition from gastric subepithelial lesions—The optimal technique still remains undecided
Suprabhat Giri, Sridhar Sundaram
Australasian Journal of Ultrasound in Medicine.2024; 27(4): 263. CrossRef - An Esophageal Leiomyoma with Cystic Degeneration Mimicking a Malignant Neoplasm
Gwang Ha Kim, Dong Chan Joo, Moon Won Lee, Bong Eun Lee, Kyungbin Kim
The Ewha Medical Journal.2023;[Epub] CrossRef - Prevalence, natural progression, and clinical practices of upper gastrointestinal subepithelial lesions in Korea: a multicenter study
Younghee Choe, Yu Kyung Cho, Gwang Ha Kim, Jun-Ho Choi, Eun Soo Kim, Ji Hyun Kim, Eun Kwang Choi, Tae Hyeon Kim, Seong-Hun Kim, Do Hoon Kim
Clinical Endoscopy.2023; 56(6): 744. CrossRef
-
3,483
View
-
139
Download
-
6
Web of Science
-
8
Crossref
-
Comparative Study of Narrow-Band Imaging and i-scan for Predicting the Histology of Intermediate-to-Large Colorectal Polyps: A Prospective, Randomized Pilot Study
-
Joon Seop Lee, Seong Woo Jeon, Yong Hwan Kwon
-
Clin Endosc 2021;54(6):881-887. Published online January 6, 2021
-
DOI: https://doi.org/10.5946/ce.2020.257
-
-
Abstract
PDF
PubReader
ePub
- Background
/Aims: To date, no reports have compared the diagnostic efficacy of narrow-band imaging (NBI) and i-scan for the histologic prediction of intermediate-to-large colorectal polyps. We aimed to compare the diagnostic accuracy of NBI and i-scan in predicting histology, and their inter-/intra-observer agreement.
Methods
We performed a prospective, randomized study that included 66 patients (NBI, n=33 vs. i-scan, n=33) with colorectal polyps (size >10 mm but <50 mm) who underwent colonoscopic resection. During the procedure, three endoscopists documented their prediction using the Japan NBI Expert Team (JNET) classification. Two months after study completion, the endoscopists reviewed still images and video clips for analysis.
Results
The overall diagnostic accuracies in the NBI and i-scan groups were 73.7% (73/99) and 75.8% (75/99), respectively, and there was no statistical significance between the two groups (p=0.744). The JNET classification as applied to NBI and i-scan showed substantial inter-observer agreement (NBI κ-value 0.612, p=0.001 vs. i-scan κ-value 0.662, p=0.002). Additionally, the κ-values of intra-observer agreement were in the range of 0.385–0.660 with NBI and 0.364–0.741 with i-scan.
Conclusions
NBI and i-scan have similar diagnostic accuracies for the histologic prediction of intermediate-to-large colorectal polyps. Furthermore, the inter-/intra-observer agreement was acceptable for both modalities when the JNET classification was applied.
-
Citations
Citations to this article as recorded by

- Ultra-minimally invasive endoscopic techniques and colorectal diseases: Current status and its future
Nalini Kanta Ghosh, Ashok Kumar
Artificial Intelligence in Gastrointestinal Endoscopy.2024;[Epub] CrossRef - The Utility of Narrow-Band Imaging International Colorectal Endoscopic Classification in Predicting the Histologies of Diminutive Colorectal Polyps Using I-Scan Optical Enhancement: A Prospective Study
Yeo Wool Kang, Jong Hoon Lee, Jong Yoon Lee
Diagnostics.2023; 13(16): 2720. 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 - Classification and endoscopic diagnosis of colorectal polyps
Ji Hyun Kim, Sung Chul Park
Journal of the Korean Medical Association.2023; 66(11): 633. CrossRef - Usefulness of optical enhancement endoscopy combined with magnification to improve detection of intestinal metaplasia in the stomach
Sergio Sobrino-Cossío, Oscar Teramoto-Matsubara, Fabian Emura, Raúl Araya, Vítor Arantes, Elymir S. Galvis-García, Marisi Meza-Caballero, Blanca Sinahi García-Aguilar, Arturo Reding-Bernal, Noriya Uedo
Endoscopy International Open.2022; 10(04): E441. CrossRef - Interventions to improve adenoma detection rates for colonoscopy
Aasma Shaukat, Anne Tuskey, Vijaya L. Rao, Jason A. Dominitz, M. Hassan Murad, Rajesh N. Keswani, Fateh Bazerbachi, Lukejohn W. Day
Gastrointestinal Endoscopy.2022; 96(2): 171. CrossRef - A modified fujinon intelligent color enhancement (FICE) in the diagnostics of superficial epithelial neoplasms of the colon
V. A. Duvanskiy, A. V. Belkov
Experimental and Clinical Gastroenterology.2022; (5): 154. CrossRef - Mucosal imaging in colon polyps: New advances and what the future may hold
Edward John Young, Arvinf Rajandran, Hamish Lachlan Philpott, Dharshan Sathananthan, Sophie Fenella Hoile, Rajvinder Singh
World Journal of Gastroenterology.2022; 28(47): 6632. CrossRef - Commentary on “Comparative Study of Narrow-Band Imaging and i-scan for Predicting the Histology of Intermediate-to-Large Colorectal Polyps: A Prospective, Randomized Pilot Study”
Yunho Jung, Masayuki Kato
Clinical Endoscopy.2021; 54(6): 781. CrossRef
-
5,792
View
-
181
Download
-
8
Web of Science
-
9
Crossref
Case Reports
-
Pyogenic Liver Abscess Caused by Endoscopic Submucosal Dissection for Early Colon Cancer
-
Joon Seop Lee, Yong Hwan Kwon
-
Clin Endosc 2019;52(6):620-623. Published online July 30, 2019
-
DOI: https://doi.org/10.5946/ce.2018.185
-
-
Abstract
PDF
PubReader
ePub
- Endoscopic submucosal dissection (ESD) is widely used for the treatment of colorectal neoplasia in patients who are candidates for endoscopic resection. In particular, pyogenic liver abscess (PLA), although rare, can occur. To our knowledge, there are no reports of PLA cases after ESD. Therefore, we report a rare case of PLA caused by ESD. A 76-year-old man was referred from a local clinic and admitted to our hospital for colonic ESD for a large polypoid mass. During colonoscopy, a 5-cm mass was seen in the cecum. ESD was performed. Four days after the procedure, he complained of myalgia and abdominal discomfort. Computed tomography revealed a 5.4- cm PLA in the medial segments of the liver. He was treated with antibiotics, and a percutaneous drainage catheter was inserted. Here, we report a very rare complication (PLA) after ESD. In conclusion, comprehensive awareness of the development of PLA is needed in ESD cases.
-
Endoscopic Management of Rectal Dieulafoy's Lesion: A Case Series and Optimal Treatment
-
Jung Gil Park, Jung Chul Park, Yong Hwan Kwon, Sun Young Ahn, Seong Woo Jeon
-
Clin Endosc 2014;47(4):362-366. Published online July 28, 2014
-
DOI: https://doi.org/10.5946/ce.2014.47.4.362
-
-
Abstract
PDF
Supplementary Material
PubReader
ePub
Rectal Dieulafoy's lesion (DL) is rare cause of lower gastrointestinal bleeding. Because of its rarity, there is no consensus on the optimal endoscopic hemostasis technique for rectal DL. We analyzed six patients who underwent endoscopic management for rectal DL after presenting with hematochezia at a single institute over 10 years. Of the six patients, three underwent endoscopic band ligation (EBL) and three underwent endoscopic hemoclip placement (EHP). Only one patient was treated with thermocoagulation. There were no immediate complications in any of the patients. None of the patients required a procedure or surgery for the treatment of rebleeding. Mean procedure times of EBL and EHP were 5.25 minutes and 7 minutes, respectively. Both EHP and EBL are shown to be effective in the treatment of bleeding rectal DL. We suggest that EBL may have potential as the preferred therapy owing to its superiority in technical and economic aspects, especially in elderly and high-risk patients.
-
Citations
Citations to this article as recorded by

- Over-the-scope clip as a rescue treatment for massive bleeding due to Dieulafoy lesion at the colorectal anastomosis: A case report
Ping Han, Demin Li, Qiaozhen Guo, Yu Lei, Jingmei Liu, Dean Tian, Wei Yan
Medicine.2024; 103(16): e37871. CrossRef - Severe lower gastrointestinal bleeding caused by rectal Dieulafoy’s lesion: Case reports and literature review
Ping Han, Yu Lei, Wei Hou, Nianjun Chen, Jingmei Liu, Dean Tian, Qiaozhen Guo, Wei Yan
Medicine.2022; 101(48): e32031. CrossRef - Endoscopic management of massive rectal bleeding from a Dieulafoy's lesion: Case report
Mario Rene Pineda-De Paz, Massiel Madelin Rosario-Morel, Jose Guadalupe Lopez-Fuentes, Luis Ariel Waller-Gonzalez, Rodrigo Soto-Solis
World Journal of Gastrointestinal Endoscopy.2019; 11(7): 438. CrossRef - Georges-Paul Dieulafoy (1839–1911) de l’ulcération…
V. de Parades, J. -D. Zeitoun, N. Fathallah, D. Bouchard, G. Rahmi, J. -F. Contou
Côlon & Rectum.2017; 11(1): 49. CrossRef - Lower gastrointestinal bleeding due to rectal Dieulafoy’s lesion
Omar N Nadhem, Omar A Salh, Omar H Bazzaz
SAGE Open Medical Case Reports.2017;[Epub] CrossRef
-
8,006
View
-
75
Download
-
7
Web of Science
-
5
Crossref
Special Issue Article of IDEN 2013
-
Endoscopic Management of Refractory Benign Colorectal Strictures
-
Yong Hwan Kwon, Seong Woo Jeon, Yong Kook Lee
-
Clin Endosc 2013;46(5):472-475. Published online September 30, 2013
-
DOI: https://doi.org/10.5946/ce.2013.46.5.472
-
-
Abstract
PDF
PubReader
ePub
In colonoscopic study, benign colorectal strictures with or without symptomatic pain are not rarely encountered. Benign colorectal stricture can be caused by a number of problems, such as anastomotic stricture after surgery, inflammatory bowel disease, postendoscopic submucosal dissection, diverticular disease, ischemic colitis, and so on. There are various modalities for the management of benign colorectal stricture. Endoscopic balloon dilatation is generally considered as the primary treatment for benign colorectal stricture. In refractory benign colorectal strictures, several treatment sessions of balloon dilatation are needed for successful dilatation. The self-expandable metal stent and many combined techniques are performed at present. However, there is no specific algorithmic modality for refractory benign colorectal strictures.
-
Citations
Citations to this article as recorded by

- Fusion of Interventional Radiology with Surgery and Endoscopy to Advance Therapies in Complex Gastrointestinal Disease
Daniel J. Holzwanger, Elefterios Trikantzopolous, David Nauheim, Anupam S. Chauhan, Jeffrey W. Milsom, Bradley B. Pua
Seminars in Interventional Radiology.2025;[Epub] CrossRef - The use of self-expanding metallic stents in the management of benign colonic obstruction: a systematic review and meta-analysis
Armin Fardanesh, Jayan George, Daniel Hughes, Stavroula Stavropoulou-Tatla, Pawan Mathur
Techniques in Coloproctology.2024;[Epub] CrossRef - Endoscopic removal of lumen-apposing metal stents – risk factors for stent embedment, complex removals, and adverse events: analysis from a multicenter prospective case series
Sergio Bazaga, Francisco Javier García-Alonso, Jose Ramon Aparicio Tormo, Belen Martinez Moreno, Vicente Sanchiz, Carles Suria, Albert Garcia-Sumalla, Joan B. Gornals, Carlos Chavarría, Carme Loras, Francisco Jose García-Fernandez, Álvaro Terán, Enrique V
Endoscopy.2023; 55(07): 591. CrossRef - Comparison of the Efficacy of Endoscopic Radial Incision and Cutting Procedure and Endoscopic Balloon Dilatation for Benign Anastomotic Stricture after Low Anterior Resection Combined with Preventive Loop Ileostomy in Rectal Cancer
Shijie Wang, Jinliang Wan, Zhiming Li, Chenyan Long, Renyi Zhang, Yaxin Luo, Zelong Han, Jun Yan
Diseases of the Colon & Rectum.2023;[Epub] CrossRef - Endoscopic Management of Luminal Strictures: Beyond Dilation
Nader D. Daoud, Hassan Ghoz, Obaie Mzaik, Himesh B. Zaver, Micah McKinney, Bhaumik Brahmbhatt, Timothy Woodward
Digestive Diseases and Sciences.2022; 67(5): 1480. CrossRef - Diagnosis and Treatment of Lack of Benign Anastomosis of Colorectal Cancer
豪原 秦
Advances in Clinical Medicine.2022; 12(05): 3770. CrossRef - State-of-the-art surgery for Crohn’s disease: Part II—colonic Crohn’s disease and associated neoplasms
Anne Macleod, Sandra L. Kavalukas, Katharina M. Scheurlen, Susan Galandiuk
Langenbeck's Archives of Surgery.2022; 407(7): 2595. CrossRef - Clinical efficacy of endoscopic dilation combined with bleomycin injection for benign anastomotic stricture after rectal surgery
Xin Miao, Li Liu, Xiang Wang, Zhining Fan, Lin Miao, Jiankun Wang
Medicine.2022; 101(33): e30036. CrossRef - Advances in Imaging of Inflammation, Fibrosis, and Cancer in the Gastrointestinal Tract
Kylene M. Harold, William M. MacCuaig, Jennifer Holter-Charkabarty, Kirsten Williams, Kaitlyn Hill, Alex X. Arreola, Malika Sekhri, Steven Carter, Jorge Gomez-Gutierrez, George Salem, Girish Mishra, Lacey R. McNally
International Journal of Molecular Sciences.2022; 23(24): 16109. CrossRef - Minimally Invasive Treatment of a Completely Obstructed Rectal Anastomosis by Using a Transanal Plasmakinetic Resectoscope: a Case Report and Review of Literature
Na Wang, Daguang Wang, Weihua Tong, Jinguo Wang
Indian Journal of Surgery.2021; 83(5): 1127. CrossRef - A Novel Approach to Dilation of Complete Colorectal Anastomotic Stricture Using Transillumination
Umair M. Nasir, Brandon Rodgers, Catherine Choi, Dayna Panchal, Qasim Salimi, Sushil Ahlawat
ACG Case Reports Journal.2020; 7(7): e00418. CrossRef - Uncovered self-expandable metal stents for the treatment of refractory benign colorectal anastomotic stricture
Ji Taek Hong, Tae Jun Kim, Sung Noh Hong, Young-Ho Kim, Dong Kyung Chang, Eun Ran Kim
Scientific Reports.2020;[Epub] CrossRef - Biodegradable stent insertion for ischaemic colorectal strictures: Tiger country
Pavan Singh Najran, Damian Mullan, Hans-Ulrich Laasch
International Journal of Gastrointestinal Intervention.2017; 6(2): 145. CrossRef - The Problem of Anastomotic Stricture After Rectosigmoid Resection in Deep Infiltrating Endometriosis
Vincent Anaf, Sashka Gocevska, Olivier Lemoine, Issam El Nakadi, Alexis Buggenhout, Marc Zalcman, Jean-Christophe Noël
Journal of Gynecologic Surgery.2016; 32(1): 35. CrossRef - Transanal anorectal stricturoplasty using the Heineke–Mikulicz principle: a novel technique
S. W. Lee, R. Niec, N. Melnitchouk, T. Samdani
Colorectal Disease.2016; 18(1): 101. CrossRef - Stents for colorectal obstruction: Past, present, and future
Eui Joo Kim
World Journal of Gastroenterology.2016; 22(2): 842. CrossRef - Intestinal Stricture in Crohn's Disease
Chen-Wang Chang, Jau-Min Wong, Chien-Chih Tung, I-Lun Shih, Horng-Yuan Wang, Shu-Chen Wei
Intestinal Research.2015; 13(1): 19. CrossRef - Evaluation of the intestinal blood flow near the rectosigmoid junction using the indocyanine green fluorescence method in a colorectal cancer surgery
Jun Watanabe, Mitsuyoshi Ota, Yusuke Suwa, Shinsuke Suzuki, Hirokazu Suwa, Masasi Momiyama, Atsushi Ishibe, Kazuteru Watanabe, Hidenobu Masui, Kaoru Nagahori, Yasushi Ichikawa, Itaru Endo
International Journal of Colorectal Disease.2015; 30(3): 329. CrossRef - Endoscopic stenting for recurrence-related colorectal anastomotic site obstruction: Preliminary experience
Jung Ho Kim
World Journal of Gastroenterology.2014; 20(38): 13936. CrossRef
-
7,771
View
-
123
Download
-
19
Crossref