Clinical Endoscopy

Yoon Tae Jeen

14 Articles

Feasibility of Wearable Display Glasses for Medical Students in the Endoscopy Room: Kang Won Lee, Hyuk Soon Choi, Hoon Jai Chun, Jae Min Lee, Eun Sun Kim, Bora Keum, Yeon Seok Seo, Yoon Tae Jeen, Soon Ho Um, Hong Sik Lee; Clin Endosc 2021;54(5):694-700. Published online March 15, 2021; DOI: https://doi.org/10.5946/ce.2020.246

Background
/Aims: Several attempts have been made to incorporate smart glasses in the medical field. We applied wearable display glasses to show the position of an observer during endoscopy and compared students’ responses between the conventional and new methods.
Methods
We surveyed 28 medical students regarding the use of wearable display devices. The students used wearable display glasses to observe an endoscopic procedure and answered the prepared questionnaire. Their collected responses were analyzed for statistical correlations between each variable.
Results
The survey of medical students revealed disadvantages including dizziness (dissatisfied and very dissatisfied: 21.5%) and eye fatigue (25% dissatisfied) and advantages including concentration (satisfied and very satisfied: 57.2%) and securing patient rights (71.4%). The students showed more positive than negative reviews regarding the new devices (32.1% vs. 21.5%).
Conclusions
We investigated the advantages and disadvantages of viewing the endoscope image with new wearable display glasses compared to the conventional method using the survey to record user experience. The results revealed relatively positive responses from the medical students in the survey. If the new device compensates for some shortcomings, its use in the endoscopy room will be feasible.

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A remote clinical clerkship program for severe COVID-19 in ICU using smart glasses: questionnaire survey
Nobuyuki Nosaka, Hideo Yamanouch, Kazuki Takada, Kenji Wakabayashi
Journal of the Japanese Society of Intensive Care Medicine.2023; 30(4): 261. CrossRef
Smart Glasses to Facilitate Ultrasound Guided Peripheral Intravenous Access in the Simulation Setting for Thai Emergency Medical Service Providers
Kamonwon Ienghong, Lap Woon Cheung, Pornpawit Wongwan, Korakot Apiratwarakul
Journal of Multidisciplinary Healthcare.2023; Volume 16: 2201. CrossRef

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Novel Ablation Therapy Using Endoscopic Irreversible Electroporation in the Bile Duct: A Pilot Animal Study: Kang Won Lee, Jae Min Lee, Hyuk Soon Choi, Eun Sun Kim, Bora Keum, Yeon Seok Seo, Yoon Tae Jeen, Soon Ho Um, Hong Sik Lee, Hoon Jai Chun, Chang Duck Kim, Chi Hyuk Oh, Hong Bae Kim; Clin Endosc 2021;54(3):413-419. Published online October 20, 2020; DOI: https://doi.org/10.5946/ce.2020.126

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Background
/Aims: Irreversible electroporation (IRE) is a relatively new ablation method. However, the application of IRE ablation in the treatment of biliary disease has not been attempted. A minimally invasive approach using endoscopic retrograde cholangiopancreatography (ERCP) can be a novel therapeutic modality for IRE ablation. In this study, we aimed to investigate the feasibility of endoscopic IRE for the biliary tract using an animal model.
Methods
A new catheter-type electrode was developed for endoscopic IRE ablation of the biliary tract. We performed ERCP and endoscopic IRE ablations in the normal common bile duct of Yorkshire pigs. The experimental setting of IRE was 500 V/cm (50 pulses, 100-µs length). The animals were sacrificed after 24 hr, and the ablated bile duct was examined.
Results
Well-demarcated focal color changes were observed on the mucosa of the common bile duct. The depth of change after IRE was confined to the mucosal and submucosal layers. Apoptotic changes in the bile duct were observed only around the IRE ablation area. Immunohistochemistry assay showed cell death in the bile duct along the electrode.
Conclusions
Endoscopic IRE ablation using ERCP was successfully performed in the common bile duct. It can be a potential option for the treatment of biliary tumors.

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Balloon‐assisted laser application for endoscopic treatment of biliary stricture
Seonghee Lim, Van Gia Truong, Seok Jeong, Jiho Lee, Byeong‐il Lee, Hyun Wook Kang
Lasers in Surgery and Medicine.2023; 55(10): 912. CrossRef
Biliary complications and efficacy after ablation of peribiliary tumors using irreversible electroporation (IRE) or radiofrequency ablation (RFA)
Somrach Thamtorawat, Rujira Patanawanitkul, Satit Rojwatcharapibarn, Walailak Chaiyasoot, Trongtum Tongdee, Jirawadee Yodying, Sukrit Sorotpinya
International Journal of Hyperthermia.2022; 39(1): 751. CrossRef
Large Animal Models in Pancreas and Biliary Disease
Seok Jeong, Jin-Seok Park, Don Haeng Lee
The Korean Journal of Gastroenterology.2021; 77(3): 99. CrossRef
Comparison of four endoluminal radiofrequency ablation devices and four power generators in an ex vivo bovine liver model
Stephan Rheinheimer, Anna Jacobsen, Philipp Mayer, Hans-Ulrich Kauczor, Andreas Mahnken
World Academy of Sciences Journal.2021;[Epub] CrossRef

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Revision of Quality Indicators for the Endoscopy Quality Improvement Program of the National Cancer Screening Program in Korea: Jun Ki Min, Jae Myung Cha, Yu Kyung Cho, Jie-Hyun Kim, Soon Man Yoon, Jong Pil Im, Yunho Jung, Jeong Seop Moon, Jin-Oh Kim, Yoon Tae Jeen; Clin Endosc 2018;51(3):239-252. Published online May 31, 2018; DOI: https://doi.org/10.5946/ce.2018.075

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Gastroscopy and colonoscopy are widely used for the early diagnosis of stomach and colorectal cancer. The present revision integrates recent data regarding previous quality indicators and novel indicators suggested for gastroscopy and colonoscopy procedures for the National Cancer Screening Program in Korea. The new indicators, developed by the Quality Improvement Committee of the Korean Society for Gastrointestinal Endoscopy, vary in the level of supporting evidence, and most are based solely on expert opinion. Updated indicators validated by clinical research were prioritized, but were chosen by expert consensus when such studies were absent. The resultant quality indicators were graded according to the levels of consensus and recommendations. The updated indicators will provide a relevant guideline for high-quality endoscopy. The future direction of quality indicator development should include relevant outcome measures and an evidence-based approach to support proposed performance targets.

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GastroHUN an Endoscopy Dataset of Complete Systematic Screening Protocol for the Stomach
Diego Bravo, Juan Frias, Felipe Vera, Juan Trejos, Carlos Martínez, Martín Gómez, Fabio González, Eduardo Romero
Scientific Data.2025;[Epub] CrossRef
Association of Intensive Endoscopic Burden with Esophageal Cancer Detection: A Nationwide Cohort Study
Yeunji Lee, Eunyoung Lee, Bumhee Park, Gil Ho Lee, Sun Gyo Lim, Sung Jae Shin, Choong-Kyun Noh, Kee Myung Lee
Gut and Liver.2025; 19(1): 59. CrossRef
Current status of quality control in screening esophagogastroduodenoscopy and the emerging role of artificial intelligence
Lihui Zhang, Liwen Yao, Zihua Lu, Honggang Yu
Digestive Endoscopy.2024; 36(1): 5. CrossRef
Performance of the National Cancer Screening Program for Gastric Cancer in Korea
Young-Il Kim
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2024; 24(3): 231. CrossRef
Association between Endoscopist Volume and Interval Cancers after Colonoscopy: Results from the National Colorectal Cancer Screening Program in Korea
Dong Jun Kim, Nan-He Yoon, Jae Kwan Jun, Mina Suh, Sunhwa Lee, Seongju Kim, Ji Eun Kim, Hooyeon Lee
Cancer Research and Treatment.2024; 56(4): 1164. CrossRef
Interval Advanced Gastric Cancer After Negative Endoscopy
Tae Jun Kim, Jeung Hui Pyo, Young Hye Byun, Sung Chul Choi, Jin Pyo Hong, Yang Won Min, Hyuk Lee, Byung-Hoon Min, Poong-Lyul Rhee, Jae J. Kim, Jun Haeng Lee
Clinical Gastroenterology and Hepatology.2023; 21(5): 1205. CrossRef
Simulator-based training method in gastrointestinal endoscopy training and currently available simulators
Yuri Kim, Jeong Hoon Lee, Gin Hyug Lee, Ga Hee Kim, Gunn Huh, Seung Wook Hong, Hwoon-Yong Jung
Clinical Endoscopy.2023; 56(1): 1. CrossRef
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
Intestinal Research.2023; 21(1): 20. CrossRef
Quality indicators in the endoscopic detection of gastric cancer
Vikneswaran Namasivayam, Noriya Uedo
DEN Open.2023;[Epub] CrossRef
The Influence of Face Shields on the Quality of Colonoscopy in the Era of the COVID-19 Pandemic
Jin Wook Lee, Hyo Jeong Lee, Dae Sung Kim, Jiyoung Yoon, Seung Wook Hong, Ha Won Hwang, Jong-Soo Lee, Gwang-Un Kim, Sinwon Lee, Jaewon Choe, Jin Hwa Park, Dong-Hoon Yang, Jeong-Sik Byeon
Gut and Liver.2022; 16(3): 404. CrossRef
Quality indicators in esophagogastroduodenoscopy
Sang Yoon Kim, Jae Myung Park
Clinical Endoscopy.2022; 55(3): 319. CrossRef
Utilization and quality assessment of digestive endoscopy in China: results from 5-year consecutive nationwide surveys
Lei Xin, Ye Gao, Zhiyuan Cheng, Tianjiao Wang, Han Lin, Yanan Pang, Chang Sun, Zengjun Fu, Zhaoshen Li, Xudong Ma, Luowei Wang
Chinese Medical Journal.2022;[Epub] CrossRef
Reduced detection rate of artificial intelligence in images obtained from untrained endoscope models and improvement using domain adaptation algorithm
Junseok Park, Youngbae Hwang, Hyun Gun Kim, Joon Seong Lee, Jin-Oh Kim, Tae Hee Lee, Seong Ran Jeon, Su Jin Hong, Bong Min Ko, Seokmin Kim
Frontiers in Medicine.2022;[Epub] CrossRef
A scoping review on population-centered indicators for cancer care continuum
Vasuki Rajaguru, Jieun Jang, Jeoung A. Kwon, Jae Hyun Kim, Jaeyong Shin, Mison Chun
Frontiers in Public Health.2022;[Epub] CrossRef
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
The Korean Journal of Gastroenterology.2022; 80(3): 115. CrossRef
Antispasmodic Agent Administration Improves Gastric Neoplasm Detection Rates during Esophagogastroduodenoscopy
Sang Yoon Kim, Jae Myung Park
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2022; 22(3): 246. CrossRef
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
Clinical Endoscopy.2022; 55(6): 703. CrossRef
Current Endoscopy Training in Korea and Future Aspects
Young-Eun Joo
The Korean Journal of Gastroenterology.2022; 80(5): 207. CrossRef
Colonoscopy quality in community hospitals and nonhospital facilities in Korea
Jae Gon Lee, Dong Soo Han, Young-Eun Joo, Dae-Seong Myung, Dong Il Park, Seul Ki Kim, Yunho Jung, Won Hyun Lee, Eun Soo Kim, Joon Seok Yoon, Chang Soo Eun
The Korean Journal of Internal Medicine.2021; 36(Suppl 1): S35. CrossRef
Association of Regular Endoscopic Screening with Interval Gastric Cancer Incidence in the National Cancer Screening Program
Choong-Kyun Noh, Eunyoung Lee, Gil Ho Lee, Sun Gyo Lim, Bumhee Park, Sung Jae Shin, Jae Youn Cheong, Kee Myung Lee
Journal of Clinical Medicine.2021; 11(1): 230. CrossRef
Impacts of age and sedation on cardiocerebrovascular adverse events after diagnostic GI endoscopy: a nationwide population-based study
Sang Yoon Kim, Chang Mo Moon, Min Ho Kim, Seong-Eun Kim, Hye-Kyung Jung, Ki-Nam Shim, Sung-Ae Jung
Gastrointestinal Endoscopy.2020; 92(3): 591. CrossRef
Efficacy and Patient Tolerability Profiles of Probiotic Solution with Bisacodyl Versus Conventional Cleansing Solution for Bowel Preparation: A Prospective, Randomized, Controlled Trial
Youn I Choi, Jong-Joon Lee, Jun-Won Chung, Kyoung Oh Kim, Yoon Jae Kim, Jung Ho Kim, Dong Kyun Park, Kwang An Kwon
Journal of Clinical Medicine.2020; 9(10): 3286. CrossRef
Endoscopy training in Korea
Joon Sung Kim, Byung-Wook Kim
The Korean Journal of Internal Medicine.2019; 34(2): 237. CrossRef
Updates on the Facilities, Procedures, and Performance of the Accredited Endoscopy Unit
Tae Hee Lee, Jin Young Yoon, Chang Nyol Paik, Hyuk Soon Choi, Jae-Young Jang
Clinical Endoscopy.2019; 52(5): 431. CrossRef
Quality Indicators and Outcome Measures of Endoscopy in the National Cancer Screening Program
Jun Ki Min, Jae Myung Cha, Min Seob Kwak, Jin Young Yoon, Yunho Jung, Jeong Eun Shin, Hyo-Joon Yang
Yonsei Medical Journal.2019; 60(11): 1054. CrossRef

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Is There a Change in Patient Preference for a Female Colonoscopist during the Last Decade in Korea?: Jung Min Lee, Eun Sun Kim, Hoon Jai Chun, In Kyung Yoo, Jae Min Lee, Seung Han Kim, Hyuk Soon Choi, Bora Keum, Yeon Seok Seo, Hong Sik Lee, Yoon Tae Jeen, Jong-Jae Park, Sang Woo Lee, Soon Ho Um, Chang Duck Kim; Clin Endosc 2018;51(1):72-79. Published online October 10, 2017; DOI: https://doi.org/10.5946/ce.2017.057

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Background
/Aims: Patients may feel embarrassed during colonoscopy. Our study aimed to assess changes in patient preference, over the past decade, for the sex of their colonoscopist.
Methods
Prospective studies were performed at a single health center from July to September 2008, and from July to September 2016. Subjects included colonoscopy patients (2008: 354, 2016: 304) who were asked to complete a questionnaire before colonoscopy.
Results
In 2016, 69 patients (24.9%) expressed a sex preference, compared with 46 patients (14.6%) in 2008. By 2016, female patient preference for a female colonoscopist had significantly increased to 95% (odds ratio [OR], 2.678; 95% confidence interval [CI], 1.418– 5.057; P=0.002). In multivariate analysis, patient sex (OR, 4.404; P=0.000), patient age (OR, 0.977; 95% CI, 0.961–0.992; P=0.004), and year of procedure (OR, 1.674; 95% CI, 1.028–2.752) were statistically significant factors in sex preference. Between 2008 and 2016, female patients preferred a female colonoscopist because of embarrassment. Male patients also preferred a male colonoscopist, and the primary reason shifted from expertise to patient embarrassment (2008: 29%, 2016: 63%).
Conclusions
Patients have an increased gender preference for the colonoscopist because of embarrassment. Taking this into account can increase patient satisfaction during colonoscopy.

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Screening Perspectives: The Role of Colorectal Cancer Awareness in Shaping Attitudes Toward Colonoscopy in Palestine
Mohamedraed Elshami, Maram Albandak, Mohammed Alser, Ibrahim Al-Slaibi, Mohammed Ayyad, Mohammad F. Dwikat, Shoruq A. Naji, Balqees M. Mohamad, Wejdan S. Isleem, Adela Shurrab, Bashar Yaghi, Yahya Ayyash Qabaja, Fatma K. Hamdan, Raneen R. Sweity, Remah T.
JCO Global Oncology.2024;[Epub] CrossRef
Female Endoscopists in Gastroenterology
Yeon Ji Kim
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2024; 24(4): 385. CrossRef
Gender of endoscopist and endoscopy staff: Patient preference
Mayank Jain
Indian Journal of Gastroenterology.2023; 42(1): 143. CrossRef
Sex/gender differences in gastrointestinal endoscopy from the perspective of patients and gastroenterologists
Nayoung Kim
Clinical Endoscopy.2023; 56(3): 268. CrossRef
Canadian Gastroenterology Career Pathway Experiences: Exploring the Gender Divide
Noor Jawaid, Monica Boctor, Jordan LoMonaco, Natasha Bollegala
Journal of the Canadian Association of Gastroenterology.2022; 5(4): 177. CrossRef
Intentions to undergo primary screening with colonoscopy under the National Cancer Screening Program in Korea
Kyeongmin Lee, Haejoo Seo, Sunho Choe, Seung-Yong Jeong, Ji Won Park, Mina Suh, Aesun Shin, Kui Son Choi, Filipe Prazeres
PLOS ONE.2021; 16(2): e0247252. CrossRef
Does provider gender matter in endoscopy? An international perspective
Pascale Anglade, Halah Ibrahim, Sawsan Abdel-Razig
Gastrointestinal Endoscopy.2021; 93(5): 1160. CrossRef
Identifying Gender Barriers for Colorectal Cancer Screening and Assessing the Need for a Multigender Endoscopy Team: A Prospective Multicenter Study
Harshit S. Khara, Darshan Suthar, Marika Bergenstock, Andrea Berger, Jessica L. McKee, Dana Stewart, Samuel R. Theis, Michael Komar, Amitpal S. Johal, Diego R. Valencia Chavez, William B. Hale, Rakhee Mangla
American Journal of Gastroenterology.2021; 116(8): 1646. CrossRef
Unique perspective of Muslim patients on gender preference for GI endoscopists: a multicenter survey
Lubna Kamani, Nazish Butt, Farheen Taufiq, Ana Garcia de Paredes, Elizabeth Rajan
Gastrointestinal Endoscopy.2021; 94(6): 1110. CrossRef
Using Etomidate and Midazolam for Screening Colonoscopies Results in More Stable Hemodynamic Responses in Patients of All Ages
Jung Min Lee, Geeho Min, Bora Keum, Jae Min Lee, Seung Han Kim, Hyuk Soon Choi, Eun Sun Kim, Yeon Seok Seo, Yoon Tae Jeen, Hoon Jai Chun, Hong Sik Lee, Soon Ho Um, Chang Duck Kim
Gut and Liver.2019; 13(6): 649. CrossRef

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Quality is the Key for Emerging Issues of Population-Based Colonoscopy Screening: Jin Young Yoon, Jae Myung Cha, Yoon Tae Jeen, on behalf of Medical Policy Committee of Korean Association for the Study of Intestinal Diseases (KASID), Quality Improvement Committee of Korean Society of Gastrointestinal Endoscopy (KSGE); Clin Endosc 2018;51(1):50-55. Published online January 31, 2018; DOI: https://doi.org/10.5946/ce.2018.010

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Colonoscopy is currently regarded as the gold standard and preferred method of screening for colorectal cancer (CRC). However, the benefit of colonoscopy screening may be blunted by low participation rates in population-based screening programs. Harmful effects of population-based colonoscopy screening may include complications induced by colonoscopy itself and by sedation, psychosocial distress, potential over-diagnosis, and socioeconomic burden. In addition, harmful effects of colonoscopy may increase with age and comorbidities. As the risk of adverse events in population-based colonoscopy screening may offset the benefit, the adverse events should be managed and monitored. To adopt population-based colonoscopy screening, consensus on the risks and benefits should be developed, focusing on potential harm, patient preference, socioeconomic considerations, and quality improvement of colonoscopy, as well as efficacy for CRC prevention. As suboptimal colonoscopy quality is a major pitfall of population-based screening, adequate training and regulation of screening colonoscopists should be the first step in minimizing variations in quality. Gastroenterologists should promote quality improvement, auditing, and training for colonoscopy in a population-based screening program.

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Strategies to improve screening colonoscopy quality for the prevention of colorectal cancer
Joo Hye Song, Eun Ran Kim
The Korean Journal of Internal Medicine.2024; 39(4): 547. CrossRef
Association between Endoscopist Volume and Interval Cancers after Colonoscopy: Results from the National Colorectal Cancer Screening Program in Korea
Dong Jun Kim, Nan-He Yoon, Jae Kwan Jun, Mina Suh, Sunhwa Lee, Seongju Kim, Ji Eun Kim, Hooyeon Lee
Cancer Research and Treatment.2024; 56(4): 1164. CrossRef
The Influence of Face Shields on the Quality of Colonoscopy in the Era of the COVID-19 Pandemic
Jin Wook Lee, Hyo Jeong Lee, Dae Sung Kim, Jiyoung Yoon, Seung Wook Hong, Ha Won Hwang, Jong-Soo Lee, Gwang-Un Kim, Sinwon Lee, Jaewon Choe, Jin Hwa Park, Dong-Hoon Yang, Jeong-Sik Byeon
Gut and Liver.2022; 16(3): 404. CrossRef
Optimal Timing of Simethicone Supplement for Bowel Preparation: A Prospective Randomized Controlled Trial
Zhen-wen Wu, Sheng-gang Zhan, Mei-feng Yang, Yi-teng Meng, Feng Xiong, Cheng Wei, Ying-xue Li, Ding-guo Zhang, Zheng-lei Xu, Ben-hua Wu, Rui-yue Shi, Jun Yao, Li-sheng Wang, De-feng Li, Cyriac Abby Philips
Canadian Journal of Gastroenterology and Hepatology.2021; 2021: 1. CrossRef
Efficacy and Patient Tolerability Profiles of Probiotic Solution with Bisacodyl Versus Conventional Cleansing Solution for Bowel Preparation: A Prospective, Randomized, Controlled Trial
Youn I Choi, Jong-Joon Lee, Jun-Won Chung, Kyoung Oh Kim, Yoon Jae Kim, Jung Ho Kim, Dong Kyun Park, Kwang An Kwon
Journal of Clinical Medicine.2020; 9(10): 3286. CrossRef

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Gastric Perforation Caused by an Intragastric Balloon: Endoscopic Findings: In Kyung Yoo, Hoon Jai Chun, Yoon Tae Jeen; Clin Endosc 2017;50(6):602-604. Published online May 18, 2017; DOI: https://doi.org/10.5946/ce.2017.015

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Intragastric balloon (IGB) insertion has been most frequently used in the West as an effective endoscopic treatment for morbid obesity, in practice. Recently, there is a growing number of cases requiring IGB deployment for obesity treatment in Korea. One of the reported complications of IGB use is gastric perforation. A 47-year-old woman was admitted to the hospital with mild symptoms, 7 weeks after having an IGB placed. Esophagogastroduodenoscopy was performed and gastric ulcer perforation was observed in the ulcer base, where food particles were impacted. Laparoscopic primary repair was done successfully. This was a case of gastric perforation, secondary to poor compliance with a proton-pump inhibitor (PPI). PPI and Helicobacter pylori eradication are important for ulcer prevention following IGB deployment.

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Common, Less Common, and Unexpected Complications after Bariatric Surgery: A Pictorial Essay
Francesca Iacobellis, Giuseppina Dell’Aversano Orabona, Antonio Brillantino, Marco Di Serafino, Alessandro Rengo, Paola Crivelli, Luigia Romano, Mariano Scaglione
Diagnostics.2022; 12(11): 2637. CrossRef
Endoscopic bariatric therapies for obesity: a review
Dominic A Staudenmann, Zhixian Sui, Payal Saxena, Arthur J Kaffes, George Marinos, Vivek Kumbhari, Patrick Aepli, Adrian Sartoretto
Medical Journal of Australia.2021; 215(4): 183. CrossRef
Stomach Volume Assessment Using Three-dimensional Computed Tomography Gastrography for Bariatric Treatment
Seung Han Kim, Bora Keum, Hyuk Soon Choi, Eun Sun Kim, Yeon Seok Seo, Yoon Tae Jeen, Hong Sik Lee, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim
Obesity Surgery.2020; 30(2): 401. CrossRef
COMBINED ENDOSCOPY AND LAPAROSCOPIC APPROACH OF A GASTRIC PERFORATION DUE TO INTRAGASTRIC BALLOON INSERTION
Guillermo Perez Aguado, José Carlos Cabrera Marrero, Lucía Jiménez-Ruano
Revista Española de Enfermedades Digestivas.2020;[Epub] CrossRef
The role of silent helicobacter pylori infection in intragastric ulcers induced by balloon insertion used for management of obesity
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Review article: Postoperative bariatric patients in the emergency department: Review of surgical complications for the emergency physician
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Emergency Medicine Australasia.2019; 31(3): 309. CrossRef
Currently Available Non-Balloon Devices
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Clinical Endoscopy.2018; 51(5): 416. CrossRef
Gastric Ulceration and Bleeding with Hemodynamic Instability Caused by an Intragastric Balloon for Weight Loss
Larrite Reed, Hawa Edriss, Kenneth Nugent
Clinical Endoscopy.2018; 51(6): 584. CrossRef
Exclusively endoscopic approach to treating gastric perforation caused by an intragastric balloon: case series and literature review
Sérgio Alexandre Barrichello Junior, Igor Braga Ribeiro, Ricardo José Fittipaldi-Fernandez, Ana Carolina Hoff, Diogo Turiani Hourneaux de Moura, Mauricio Kazuyoshi Minata, Thiago Ferreira de Souza, Manoel dos Passos Galvão Neto, Eduardo Guimarães Hourneau
Endoscopy International Open.2018; 06(11): E1322. CrossRef

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The Importance of an Endoscopic Quality Assessment Program Reflecting Real Practice: In Kyung Yoo, Yoon Tae Jeen; Clin Endosc 2016;49(6):495-497. Published online November 15, 2016; DOI: https://doi.org/10.5946/ce.2016.137

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Job Stress and Job Satisfaction among Health-Care Workers of Endoscopy Units in Korea: Seung-Joo Nam, Hoon Jai Chun, Jeong Seop Moon, Sung Chul Park, Young-Jae Hwang, In Kyung Yoo, Jae Min Lee, Seung Han Kim, Hyuk Soon Choi, Eun Sun Kim, Bora Keum, Yoon Tae Jeen, Hong Sik Lee, Chang Duck Kim; Clin Endosc 2016;49(3):266-272. Published online February 22, 2016; DOI: https://doi.org/10.5946/ce.2015.085

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Background
/Aims: The management of job-related stress among health-care workers is critical for the improvement of healthcare services; however, there is no existing research on endoscopy unit workers as a team. Korea has a unique health-care system for endoscopy unit workers. In this study, we aimed to estimate job stress and job satisfaction among health-care providers in endoscopy units in Korea.
Methods
We performed a cross-sectional survey of health-care providers in the endoscopy units of three university-affiliated hospitals in Korea. We analyzed the job stress levels by using the Korean occupational stress scale, contributing factors, and job satisfaction.
Results
Fifty-nine workers completed the self-administered questionnaires. The job stress scores for the endoscopy unit workers (46.39±7.81) were relatively lower compared to those of the national sample of Korean workers (51.23±8.83). Job stress differed across job positions, with nurses showing significantly higher levels of stress (48.92±7.97) compared to doctors (42.59±6.37). Job stress and job satisfaction were negatively correlated with each other (R² =0.340, p<0.001).
Conclusions
An endoscopy unit is composed of a heterogeneous group of health-care professionals (i.e., nurses, fellows, and professors), and job stress and job satisfaction significantly differ according to job positions. Job demand, insufficient job control, and job insecurity are the most important stressors in the endoscopy unit.

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Indications for Detection, Completion, and Retention Rates of Small Bowel Capsule Endoscopy Based on the 10-Year Data from the Korean Capsule Endoscopy Registry: Yun Jeong Lim, Oh Young Lee, Yoon Tae Jeen, Chi Yeon Lim, Dae Young Cheung, Jae Hee Cheon, Byong Duk Ye, Hyun Joo Song, Jin Su Kim, Jae Hyuk Do, Kwang Jae Lee, Ki-Nam Shim, Dong Kyung Chang, Cheol Hee Park, Byung Ik Jang, Jeong Seop Moon, Hoon Jai Chun, Myung-Gyu Choi, Jin Oh Kim, Korean Gut Image Study Group; Clin Endosc 2015;48(5):399-404. Published online September 30, 2015; DOI: https://doi.org/10.5946/ce.2015.48.5.399

Abstract PDF PubReader ePub

Background/Aims

Capsule endoscopy (CE) is widely used. However, CE has limitations including incomplete examination, inadequate bowel preparation, and retention. The aim of this study was to estimate the indications for and detection, completion, and retention rates of small intestine CE based on the 10-year data from the Korean Capsule Endoscopy Registry.

Methods

Twenty-four hospitals participated in this study. Clinical information, such as reasons for CE, method and quality of bowel preparation, and incomplete examination and capsule retention rates, was collected and analyzed.

Results

A total of 2,914 CEs were registered. The most common reason for CE was obscure gastrointestinal bleeding (59%). Significant lesions were detected in 66% of cases. Positive CE diagnosis occurred in 63% of cases. The preparation method did not significantly affect the quality of bowel preparation for CE. The overall incomplete rate was 33%, and was high in the elderly and those with poor bowel preparation. Capsule retention was 3% and high in patients with small bowel tumors and Crohn's disease and in children under 10 years of age.

Conclusions

CE is a valuable technique; while the overall detection rate is high, incompletion and retention rates are also relatively high. CE should be carefully considered in the elderly and children less than 10 years of age, as well as in patients with small bowel tumors and Crohn's disease.

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Guidelines for Video Capsule Endoscopy: Emphasis on Crohn's Disease: Soo-Kyung Park, Byong Duk Ye, Kyeong Ok Kim, Cheol Hee Park, Wan-Sik Lee, Byung Ik Jang, Yoon Tae Jeen, Myung-Gyu Choi, Hyun Jung Kim, The Korean Gut Image Study Group; Clin Endosc 2015;48(2):128-135. Published online March 27, 2015; DOI: https://doi.org/10.5946/ce.2015.48.2.128

Abstract PDF PubReader ePub

Video capsule endoscopy (VCE) is an ingestible video camera that transmits high-quality images of the small intestinal mucosa. This makes the small intestine more readily accessible to physicians investigating the presence of small bowel disorders, such as Crohn's disease (CD). Although VCE is frequently performed in Korea, there are no evidence-based guidelines on the appropriate use of VCE in the diagnosis of CD. To provide accurate information and suggest correct testing approaches for small bowel diseases, the Korean Gut Image Study Group, part of the Korean Society of Gastrointestinal Endoscopy, developed guidelines on VCE. Teams were set up to develop guidelines on VCE. Four areas were selected: diagnosis of obscure gastrointestinal bleeding, small bowel preparation for VCE, diagnosis of CD, and diagnosis of small bowel tumors. Three key questions were selected regarding the role of VCE in CD. In preparing these guidelines, a systematic literature search, evaluation, selection, and meta-analysis were performed. After writing a draft of the guidelines, the opinions of various experts were solicited before producing the final document. These guidelines are expected to play a role in the diagnosis of CD. They will need to be updated as new data and evidence become available.

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Guidelines for Bowel Preparation before Video Capsule Endoscopy: Hyun Joo Song, Jeong Seop Moon, Jae Hyuk Do, In Hye Cha, Chang Hun Yang, Myung-Gyu Choi, Yoon Tae Jeen, Hyun Jung Kim; Clin Endosc 2013;46(2):147-154. Published online March 31, 2013; DOI: https://doi.org/10.5946/ce.2013.46.2.147

Abstract PDF PubReader ePub

The preparation for video capsule endoscopy (VCE) of the bowel suggested by manufacturers of capsule endoscopy systems consists only of a clear liquid diet and an 8-hour fast. While there is evidence for a benefit from bowel preparation for VCE, so far there is no domestic consensus on the preparation regimen in Korea. Therefore, we performed this study to recommend guidelines for bowel preparation before VCE. The guidelines on VCE were developed by the Korean Gut Image Study Group, part of the Korean Society of Gastrointestinal Endoscopy. Four key questions were selected. According to our guidelines, bowel preparation with polyethylene glycol (PEG) solution enhances small bowel visualization quality (SBVQ) and diagnostic yield (DY), but it has no effect on cecal completion rate (CR). Bowel preparation with 2 L of PEG solution is similar to that with 4 L of PEG in terms of the SBVQ, DY, and CR of VCE. Bowel preparation with fasting or PEG solution combined with simethicone enhances the SBVQ, but it does not affect the CR of VCE. Bowel preparation with prokinetics does not enhance the SBVQ, DY, or CR of VCE.

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Feasibility of Obtaining Quantitative 3-Dimensional Information Using Conventional Endoscope: A Pilot Study: Jong Jin Hyun, Hoon Jai Chun, Bora Keum, Yeon Seok Seo, Yong Sik Kim, Yoon Tae Jeen, Hong Sik Lee, Soon Ho Um, Chang Duck Kim, Ho Sang Ryu, Jong-Wook Lim, Dong-Gi Woo, Young-Joong Kim, Myo-Taeg Lim; Clin Endosc 2012;45(3):182-188. Published online August 22, 2012; DOI: https://doi.org/10.5946/ce.2012.45.3.182

Abstract PDF PubReader ePub

Background/Aims

Three-dimensional (3D) imaging is gaining popularity and has been partly adopted in laparoscopic surgery or robotic surgery but has not been applied to gastrointestinal endoscopy. As a first step, we conducted an experiment to evaluate whether images obtained by conventional gastrointestinal endoscopy could be used to acquire quantitative 3D information.

Methods

Two endoscopes (GIF-H260) were used in a Borrmann type I tumor model made of clay. The endoscopes were calibrated by correcting the barrel distortion and perspective distortion. Obtained images were converted to gray-level image, and the characteristics of the images were obtained by edge detection. Finally, data on 3D parameters were measured by using epipolar geometry, two view geometry, and pinhole camera model.

Results

The focal length (f) of endoscope at 30 mm was 258.49 pixels. Two endoscopes were fixed at predetermined distance, 12 mm (d₁₂). After matching and calculating disparity (v2-v1), which was 106 pixels, the calculated length between the camera and object (L) was 29.26 mm. The height of the object projected onto the image (h) was then applied to the pinhole camera model, and the result of H (height and width) was 38.21 mm and 41.72 mm, respectively. Measurements were conducted from 2 different locations. The measurement errors ranged from 2.98% to 7.00% with the current Borrmann type I tumor model.

Conclusions

It was feasible to obtain parameters necessary for 3D analysis and to apply the data to epipolar geometry with conventional gastrointestinal endoscope to calculate the size of an object.

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Three-dimensional light-field microendoscopy with a GRIN lens array
Tara M. Urner, Andrew Inman, Benjamin Lapid, Shu Jia
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3D light-field endoscopic imaging using a GRIN lens array
Changliang Guo, Tara Urner, Shu Jia
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Current and emerging robotic assisted intervention for Notes
Siyang Zuo, Shuxin Wang
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Application of robotics in gastrointestinal endoscopy: A review
Baldwin Po Man Yeung
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The Evolution of the Conventional Endoscope in an Era of 3-Dimensional Technology
Geun Am Song
Clinical Endoscopy.2012; 45(3): 181. CrossRef

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Assessment on the Potential Role of Applying Cryoprobe for Tissue Ablation: Min Ho Seo, Yoon Tae Jeen, Sang Jung Park, Sun Young Kim, Hye Jin Cho, Hyuk Sun Choi, Hoon Jai Chun, Chang Duck Kim, Ho Sang Ryu, Yang Seok Chae; Clin Endosc 2012;45(1):67-72. Published online March 31, 2012; DOI: https://doi.org/10.5946/ce.2012.45.1.67

Abstract PDF PubReader ePub: Background/Aims
Cryotherapy is the therapeutic application for tissue ablation. Clinical applications of cryotherpy such as in pulmonology have increased. Until now, its development in gastroenterology has been insignificant. But, as clinical application such as mucosal ablation on Barrett's esophagus became possible, various applications have been developed. Therefore, it is important to make standards of tissue injury's extent in cryotherapy prior to clinical trial. We evaluated the tissue injury according to the application of cryoprobe with a pig model.
Methods
Cryoprobe was applied to several different segments of the esophagus and stomach for various lengths of time using various number of probe's contact in a pig model. After 48 hours, esophagus and stomach were harvested and histological tissue injury was assessed. The extent of tissue injury was decided by the injury of the deepest layer.
Results
Endoscopic application of cryoprobe on esophagus and stomach resulted in a dose-dependent injury: esophageal necrosis was limited to the submucosa after 10 seconds of cryotherapy, and extended to involve the transmural necrosis after over 15 seconds. Necrosis on stomach was extended to involve the transmural necrosis after over 20 seconds.
Conclusions
Positive relationship was seen between the duration and frequency of cryoprobe application and the extent of tissue injury.

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Comparison on the Efficacy of Disinfectants Used in Automated Endoscope Reprocessors: PHMB-DBAC versus Orthophthalaldehyde: Sun Young Kim, Hong Sik Lee, Jong Jin Hyun, Min Ho Seo, Sun Young Yim, Ha Young Oh, Hye Sook Kim, Bora Keum, Yeon Seok Seo, Yong Sik Kim, Yoon Tae Jeen, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim, Ho Sang Ryu; Clin Endosc 2011;44(2):109-115. Published online December 31, 2011; DOI: https://doi.org/10.5946/ce.2011.44.2.109

Abstract PDF PubReader ePub

Background/Aims

Since endoscopes are reusable apparatus classified as semicritical item, thorough reprocessing to achieve high-level disinfection is of utmost importance to prevent spread of infection. To improve disinfection efficacy and safety, disinfectants and endoscope reprocessors are continuously evolving. This study aimed to compare the efficacy of the combination of polyhexamethylenebiguanide hydrochloride-alkyldimethylbenzylammonium chloride (PHMB-DBAC) and orthophthalaldehyde (OPA) used respectively in ultrasonographic cleaning incorporated automated endoscope reprocessors: COOLENDO (APEX Korea) or OER-A (Olympus Optical).

Methods

A total of 86 flexible upper endoscopes were randomly reprocessed with either COOLENDO/PHMB-DBAC or OER-A/OPA. Culture samplings were done at two sites (endoscope tip and working channel) which were later incubated on blood agar plate. Bacterial colonies were counted and identified.

Results

The culture-positive rate at the endoscope tip and working channel was 0% and 2.33% for COOLENDO/PHMB-DBAC and 4.65% and 0% for OER-A/OPA. Staphylococcus hominis was cultured from one endoscope reprocessed with COOLENDO/PHMB-DBAC and Pseudomonas putida was isolated from two endoscopes reprocessed with OER-A/OPA.

Conclusions

The reprocessing efficacy of COOLENDO/PHMB-DBAC was non-inferior to that of OER-A/OPA (p=0.032; confidence interval, -0.042 to 0.042). During the study period, significant side effect of PHMB-DBAC was not observed.

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