Clinical Endoscopy

Hwang Choi

6 Articles

Diagnostic Coding for Intramucosal Carcinoma and Neuroendocrine Tumor in the Colorectum: Proposal for Avoiding Confusing Coding in Korea: Dong Soo Han, Jin Hee Sohn, Jeong-Sik Byeon, Hwang Choi, Joon Mee Kim; Clin Endosc 2015;48(3):216-220. Published online May 29, 2015; DOI: https://doi.org/10.5946/ce.2015.48.3.216

Applying proper coding is important for doctors practicing gastroenterology. The coding systems established by various organizations define tumors differently. As a result of changing concepts of tumor classification, there are coding and reimbursement issues following the confirmation of malignant lesions by nationwide cancer screening in patients with intramucosal carcinoma and neuroendocrine tumors of the colorectum. In addition, there have been discrepancies between the views of endoscopists and pathologists regarding tumor coding. The Korean Society of Gastrointestinal Endoscopy held an expert meeting and established a consensus for the coding of intramucosal carcinoma and neuroendocrine tumor of the colorectum.

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Different miRNAs Related to FBXW7 Mutations or High Mitotic Indices Contribute to Rectal Neuroendocrine Tumors: A Pilot Study
Ho Suk Kang, Ha Young Park, Hyun Lim, Il Tae Son, Min-Jeong Kim, Nan Young Kim, Min Jeong Kim, Eun Sook Nam, Seong Jin Cho, Mi Jung Kwon
International Journal of Molecular Sciences.2023; 24(7): 6329. CrossRef
Rare cancers are not rare in Asia as well: The rare cancer burden in East Asia
Tomohiro Matsuda, Young-Joo Won, RuRu Chun-ju Chiang, Jiwon Lim, Kumiko Saika, Keisuke Fukui, Wen-Chung Lee, Laura Botta, Alice Bernasconi, Annalisa Trama
Cancer Epidemiology.2020; 67: 101702. CrossRef
A prediction model for advanced colorectal neoplasia in an asymptomatic screening population
Sung Noh Hong, Hee Jung Son, Sun Kyu Choi, Dong Kyung Chang, Young-Ho Kim, Sin-Ho Jung, Poong-Lyul Rhee, John Green
PLOS ONE.2017; 12(8): e0181040. CrossRef

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Cholangitis Secondary to Food Material Impaction in the Common Bile Duct through a Choledochoduodenal Fistula: Bong-Koo Kang, Sung Min Park, Byung-Wook Kim, Joon Sung Kim, Ji Hee Kim, Jeong-Seon Ji, Hwang Choi; Clin Endosc 2015;48(3):265-267. Published online May 29, 2015; DOI: https://doi.org/10.5946/ce.2015.48.3.265

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Biliary-enteric communications caused by duodenal ulcers are uncommon, and choledochoduodenal fistula (CDF) is by far the most common type. Usually in this situation, food material does not enter the common bile duct because the duodenal lumen is intact. Here, we report a case in which cholangitis occurred due to food materials impacted through a CDF. Duodenal obstruction secondary to duodenal ulcer prevented food passage into the duodenum in this case. Surgical management was recommended; however, the patient refused surgery because of poor general condition. Consequently, the patient expired with sepsis secondary to ascending cholangitis.

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Stone-Induced Purulent Choledocoduodenal Fistula Presenting with Ascending Cholangitis
Christienne Shams, Michael Cannon, Jared Bortman, Seifeldin Hakim
ACG Case Reports Journal.2018; 5(1): e60. CrossRef
Successful Conservative Treatment of a Cholecystoduodenal Fistula Caused by a Cytomegalovirus-associated Duodenal Ulcer
Hideki Mori, Moriya Zakimi, Shin Kato, Koki Yamada, Kenji Chinen, Tomiaki Kubota, Masayuki Arashiro, Susumu Shinoura, Kaoru Kikuchi
Internal Medicine.2016; 55(18): 2617. CrossRef

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Repetitive Colonoscopic Decompression as a Bridge Therapy before Surgery in a Pregnant Patient with Chronic Intestinal Pseudo-Obstruction: Joon Sung Kim, Bo-In Lee, Byung-Wook Kim, Hwang Choi, Yun-Seok Lee, Leeso Maeng; Clin Endosc 2013;46(5):591-594. Published online September 30, 2013; DOI: https://doi.org/10.5946/ce.2013.46.5.591

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Chronic intestinal pseudo-obstruction is a rare clinical syndrome which is characterized by intestinal obstruction without occluding lesions in the intestinal lumen and pregnancy is one of the important aggravating factors. Here, we report a case of a woman with intractable intestinal pseudo-obstruction that was precipitated by pregnancy. She could not make any stool passage for more than 4 weeks until a fetal gestational age of 17 weeks was reached. However, the patient could be maintained by repetitive colonoscopic decompressions and finally total colectomy could be performed successfully at a fetal gestational age of 21 weeks.

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Chronic intestinal pseudo‐obstruction in adults: A practical guide to identify patient subgroups that are suitable for more specific treatments
Guido Basilisco, Margherita Marchi, Marina Coletta
Neurogastroenterology & Motility.2024;[Epub] CrossRef
Chronic intestinal pseudo-obstruction: a case report with review of the literature and practical guidance for the clinician
S De Meulder, T Vanuytsel
Acta Gastro Enterologica Belgica.2022; 85(1): 85. CrossRef
Percutaneous endoscopic gastrojejunostomy in pediatric intestinal pseudo-obstruction
Giovanni Di Nardo, Maria Beatrice Manca, Elsa Iannicelli, Giancarlo D'Ambra, Alessandro Laviano, Matteo Guarino, Pasquale Parisi, Francesco Ernesto Pontieri, Elisa Rosati, Roberto De Giorgio
Nutrition.2021; 86: 111174. CrossRef
Latest developments in chronic intestinal pseudo-obstruction
Chang-Zhen Zhu, Hong-Wei Zhao, Hong-Wei Lin, Feng Wang, Yuan-Xin Li
World Journal of Clinical Cases.2020; 8(23): 5850. CrossRef
Latest developments in chronic intestinal pseudo-obstruction
Chang-Zhen Zhu, Hong-Wei Zhao, Hong-Wei Lin, Feng Wang, Yuan-Xin Li
World Journal of Clinical Cases.2020; 8(23): 5852. CrossRef
Chronic intestinal pseudo‐obstruction in children and adults: diagnosis and therapeutic options
G. Di Nardo, C. Di Lorenzo, A. Lauro, V. Stanghellini, N. Thapar, T. B. Karunaratne, U. Volta, R. De Giorgio
Neurogastroenterology & Motility.2017;[Epub] CrossRef
Chronic intestinal pseudo‐obstruction: Progress in management?
G. Di Nardo, T. B. Karunaratne, S. Frediani, R. De Giorgio
Neurogastroenterology & Motility.2017;[Epub] CrossRef
Advancement in the clinical management of intestinal pseudo-obstruction
Augusto Lauro, Roberto De Giorgio, Antonio Daniele Pinna
Expert Review of Gastroenterology & Hepatology.2015; 9(2): 197. CrossRef

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Ultrathin Endoscope-Assisted Method for the Management of Upper Gastrointestinal Obstruction to Avoid Technical Failure: Jong In Kim, Joon Sung Kim, Byung-Wook Kim, Joo-Yong Song, Joo Ho Ham, Bo-In Lee, Hye-Jung Choi, Jeong-Seon Ji, Hwang Choi; Clin Endosc 2013;46(4):373-378. Published online July 31, 2013; DOI: https://doi.org/10.5946/ce.2013.46.4.373

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Background/Aims

Endoscopic management of upper gastrointestinal obstruction is safe and feasible. However, its technical and clinical success rate is about 90%, which is primarily due to inability to pass a guide-wire through the stricture. The aim of this study was to evaluate the usefulness of an ultrathin endoscope for correct placement of guide wire to avoid technical failure in upper gastrointestinal obstruction.

Methods

Retrospective assessment of ultrathin endoscope to traverse the stenosis of the upper gastrointestinal tract in technically difficult cases was performed. Technical and clinical success rates and immediate complications were analyzed.

Results

Nine cases were included in this study (eight cases of stent insertion and one case of balloon dilatation). Technical success was achieved in all of the patients (100%) and oral feeding was feasible in all of the cases (100%). Immediate complications, such as migration, perforation, and hemorrhage, did not develop in any of the cases.

Conclusions

Ultrathin endoscope-assisted method for upper gastrointestinal obstruction is potentially safe and useful to avoid technical failure.

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Rescue technique for self-expandable metallic stent placement using ultrathin endoscope after failure of the conventional method in patients with malignant colon obstruction: a multicenter retrospective study
Tae-Geun Gweon, Chul-Hyun Lim, Jinsu Kim, Dong Hoon Kang, Bo In Lee, Young-Seok Cho
Surgical Endoscopy.2023; 37(10): 7600. CrossRef
Fluoroscopic Gastroduodenal Stent Placement in 55 Patients with Endoscopic Stent Placement Failure
Nader Bekheet, Min Tae Kim, Jung-Hoon Park, Kun Yung Kim, Jiaywei Tsauo, Wang Zhe, Young Je Lim, Ho-Young Song
CardioVascular and Interventional Radiology.2018; 41(8): 1233. CrossRef
Fluoroscopic-guided stent placement in failed tentative endoscopic approaches to malignant gastroduodenal obstructions
Soo Hwan Kim, Ho-Young Song, Jung-Hoon Park, Wei-Zhong Zhou, Young Chul Cho, Ji Hoon Shin, Jin Hyoung Kim
Acta Radiologica.2017; 58(8): 959. CrossRef

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Diagnostic Accuracy and Interobserver Agreement in Predicting the Submucosal Invasion of Colorectal Tumors Using Gross Findings, Pit Patterns, and Microvasculatures: Hye Jung Choi, Bo-In Lee, Hwang Choi, Kyu Yong Choi, Sang-Woo Kim, Joo Yong Song, Jeong Seon Ji, Byung-Wook Kim; Clin Endosc 2013;46(2):168-171. Published online March 31, 2013; DOI: https://doi.org/10.5946/ce.2013.46.2.168

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Background/Aims

Depth of invasion is one of the most important factors for establishing treatment strategy for colorectal tumors.

Methods

Three blinded experts reviewed electronic photos and video clips of 33 early colorectal cancer-like lesions. They estimated the depth of invasion based on conventional white light endoscopy (CWE), magnifying chromoendoscopy (MCE), and magnifying narrow band imaging endoscopy (MNE).

Results

The lesions included nine mucosal low-grade neoplasias, 16 mucosal high grade neoplasias, and eight carcinomas with invasion to the submucosal layer or beyond. The diagnostic accuracy for submucosal invasion by CWE ranged from 67% to 82%, while those by MCE and MNE ranged from 85% to 88% and 85% to 88%, respectively. The diagnostic accuracy significantly differed between CWE and MCE (p=0.034) and between CWE and MNE (p=0.039). The kappa values for CWE, MCE, and MNE among the endoscopists were 0.564, 0.673, and 0.673, respectively.

Conclusions

The estimation of submucosal invasion for early colorectal cancer-like lesions based on MCE or MNE is more accurate than CWE. MCE and MNE were demonstrated to have substantial agreement for predicting submucosal invasion.

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Estimation of Invasion Depth: The First Key to Successful Colorectal ESD
Bo-In Lee, Takahisa Matsuda
Clinical Endoscopy.2019; 52(2): 100. CrossRef
Comparison of endoscopic ultrasonography and magnifying endoscopy for assessment of the invasion depth of shallow gastrointestinal neoplasms: a systematic review and meta-analysis
Zhang Tao, Chen Yan, He Zhao, Jiawei Tsauo, Xiaowu Zhang, Bing Qiu, Yanqing Zhao, Xiao Li
Surgical Endoscopy.2017; 31(12): 4923. CrossRef
Use of confocal laser endomicroscopy with a fluorescently labeled fatty acid to diagnose colorectal neoplasms
Feihong Deng, Yuan Fang, Zhiyong Shen, Wei Gong, Tao Liu, Jing Wen, Wanling Zhang, Xianjun Zhu, Hui Zhong, Tong Wang, Fachao Zhi, Biao Nie
Oncotarget.2017; 8(35): 58934. CrossRef
Higher net change of index of hemoglobin values between colon polyp and nonpolyp mucosa correlates with the presence of an advanced colon adenoma
Wei‐Chun Cheng, Hsiu‐Chi Cheng, Po‐Jun Chen, Jui‐Wen Kang, Er‐Hsiang Yang, Bor‐Shyang Sheu, Wei‐Ying Chen
Advances in Digestive Medicine.2016; 3(4): 161. CrossRef
Brief Education on Microvasculature and Pit Pattern for Trainees Significantly Improves Estimation of the Invasion Depth of Colorectal Tumors
Joon Sung Kim, Bo-In Lee, Hwang Choi, Bong Koo Kang, Jong In Kim, Hae Mi Lee, Eun-Joo Im, Byung-Wook Kim, Sang-Woo Kim, Myung-Gyu Choi, Kyu Yong Choi
Gastroenterology Research and Practice.2014; 2014: 1. CrossRef
Clinical Usefulness of Magnifying Chromoendoscopy and Magnifying Narrow Band Imaging Endoscopy for Predicting the Submucosal Invasion of Early Colorectal Cancers
Kwang An Kwon, Yang Suh Ku
Clinical Endoscopy.2013; 46(2): 113. CrossRef

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Expression of MUC5AC and Trefoil Peptide 1 (TFF1) in the Subtypes of Intestinal Metaplasia: Joo-Yong Song, Byung-Wook Kim, Ah-Won Lee, Kyo-Young Lee, In-Sik Chung, Bo-In Lee, Hwang Choi, Jeong-Seon Ji, Hiun-Suk Chae, Kyu-Yong Choi; Clin Endosc 2012;45(2):151-154. Published online June 30, 2012; DOI: https://doi.org/10.5946/ce.2012.45.2.151

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Background/Aims

Alterations of the expression pattern of mucins and trefoil peptides have been described in gastric adenocarcinomas and in their precursor lesions. The aim of this study was to determine the progression patterns of intestinal metaplasia (IM) subtypes by analyzing the expression patterns of TFF1 and MUC5AC in different subtypes of IM of the stomach.

Methods

Endoscopic gastric biopsies of the antrum and body were obtained from patients with dyspepsia and endoscopic IM. Alcian blue/periodic acid-Schiff staining and the high iron diamine technique were used to classify the subtypes of IM. Immunoreactivity for MUC5AC and TFF1 was estimated in different types of IM.

Results

IM was detected in 128 samples from 80 patients; type I was found in 48 samples, type II was found in 37 samples, and type III was found in 43 samples. There was a gradual decrease in MUC5AC and TFF1 expression during the progression of IM from type I to type III via the type II intermediate.

Conclusions

This downregulation of MUC5AC and TFF1 expression may challenge the sequential progression of IM from type I to type III via the type II intermediate, and it might be associated with gastric carcinogenesis.

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Early Immune Remodeling Steers Clinical Response to First-Line Chemoimmunotherapy in Advanced Gastric Cancer
Minae An, Arnav Mehta, Byung Hoon Min, You Jeong Heo, Samuel J. Wright, Milan Parikh, Lynn Bi, Hyuk Lee, Tae Jun Kim, Song-Yi Lee, Jeonghyeon Moon, Ryan J. Park, Matthew R. Strickland, Woong-Yang Park, Won Ki Kang, Kyoung-Mee Kim, Seung Tae Kim, Samuel J.
Cancer Discovery.2024; 14(5): 766. CrossRef
Expression of Trefoil Factor 1 (TFF1) in Cancer: A Tissue Microarray Study Involving 18,878 Tumors
Florian Lutz, Soo-Young Han, Seyma Büyücek, Katharina Möller, Florian Viehweger, Ria Schlichter, Anne Menz, Andreas M. Luebke, Ahmed Abdulwahab Bawahab, Viktor Reiswich, Martina Kluth, Claudia Hube-Magg, Andrea Hinsch, Sören Weidemann, Maximilian Lennartz
Diagnostics.2024; 14(19): 2157. CrossRef
RNA Sequencing of Early-Stage Gastric Adenocarcinoma Reveals Multiple Activated Pathways and Novel Long Non-Coding RNAs in Patient Tissue Samples
Sadegh Fattahi, Novin Nikbakhsh, Hassan Taheri ‎, Mohammad Ranaee, Haleh Akhavan-Niaki
Reports of Biochemistry and Molecular Biology.2021; 9(4): 478. CrossRef
Helicobacter pylori Infection and the Patterns of Gastric Mucin Expression in Children
Ana-Maria Teodora Domșa, Raluca Lupușoru, Dan Gheban, Alexandra Buruiană-Simic, Bogdan Alexandru Gheban, Camelia Lazăr, Cristina Maria Borzan
Journal of Clinical Medicine.2020; 9(12): 4030. CrossRef
Helicobacter pylori and cytokine gene variants as predictors of premalignant gastric lesions
Anca Negovan, Mihaela Iancu, Emőke Fülöp, Claudia Bănescu
World Journal of Gastroenterology.2019; 25(30): 4105. CrossRef
Effect of myeloid differentiation primary response gene 88 on expression profiles of genes during the development and progression of Helicobacter-induced gastric cancer
Ivonne Lozano-Pope, Arnika Sharma, Michael Matthias, Kelly S. Doran, Marygorret Obonyo
BMC Cancer.2017;[Epub] CrossRef
The changes in MUC5AC expression in gastric cancer before and after Helicobacter pylori eradication
Ding Shi, Xin-min Qiu, Xing-jun Yan
Clinics and Research in Hepatology and Gastroenterology.2014; 38(2): 235. CrossRef
Pathophysiology and Epidemiology of Intestinal Metaplasia
Joon Sung Kim, Byung-Wook Kim
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2013; 13(2): 73. CrossRef

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