Clinical Endoscopy

Dong Hee Koh

2 Articles

Technical Reports of Endoscopic Retrograde Cholangiopancreatography Guidewires on the Basis of Physical Properties: Chang-Il Kwon, Dong Hee Koh, Tae Jun Song, Won Suk Park, Dong Hang Lee, Seok Jeong; Clin Endosc 2020;53(1):65-72. Published online August 6, 2019; DOI: https://doi.org/10.5946/ce.2019.114

Background
/Aims: Using an appropriate guidewire can increase the success rate of selective cannulation in endoscopic retrograde cholangiopancreatography. The purpose of this technical study was to investigate the characteristics of each guidewire type and to evaluate its efficiency and rapidity of insertion.
Methods
We conducted a three-point bending test using a universal testing machine to investigate the flexibility and bending features of each guidewire. 3D-printed silicone tubes with various types of stricture and a hand-made biliary tree silicone model with six-stranded intrahepatic ducts were used to evaluate the success rate and insertion time of each guidewire.
Results
In the three-point bending test, the characteristics of each guidewire were classified. We found that the bending strengths and times were independent of shaft thickness. Using two in vitro biliary duct models, we determined that the success rate and total insertion time were better for guidewires with a resilient shaft and angled tip than for other types of guidewires (p<0.001). Although thickness of the guidewire affected the success rate (p<0.05), it did not affect the total insertion time (p≥0.05).
Conclusions
Among several types of guidewire, some factors (resilient shaft, highly flexible, and angled tip) appeared to be associated with the efficiency and rapidity of the guidewire insertion.

Citations

Citations to this article as recorded by

Structural factors influencing the clinical performance of 0.025-inch guidewires for pancreatobiliary endoscopy: An experimental study
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Endoscopy International Open.2024; 12(05): E666. CrossRef
Guidewire Impaction in the Main Pancreatic Duct in a Patient with Chronic Pancreatitis: A Case Report
Soyoung Kim, Hoonsub So, Seok Won Jung, Sung Jo Bang
The Korean Journal of Gastroenterology.2023; 81(1): 36. CrossRef
Efficacy of a newly developed guidewire for selective biliary access
Do Hyun Park, Joung-Ho Han, Tae Hoon Lee, Jae Kook Yang, Ji Sung Lee, Yong Hun Lee, Mamoru Takenaka, Sang-Heum Park
Scientific Reports.2023;[Epub] CrossRef
Efficacy of a Newly Developed Guidewire for Selective Biliary Cannulation: A Multicenter Randomized Controlled Trial
Sung Yong Han, Sung Ill Jang, Dong Hee Koh, Jong Hyun Lee, Dong Uk Kim, Jae Hee Cho, Kyong Joo Lee, Seong-Hun Kim, Min Je Sung, Chang-Il Kwon
Journal of Clinical Medicine.2023; 12(10): 3440. CrossRef
Comparison of Two Types of Guidewires for Malignant Hilar Biliary Obstruction by Endoscopic Retrograde Cholangiopancreatography: A Randomized Controlled Trial
Sung Yong Han, Jung Wan Choe, Dong Uk Kim, Jong Jin Hyun, Joung-Ho Han, Hoonsub So, Sung Jo Bang, Dong Hee Koh, Seok Jeong
Journal of Clinical Medicine.2023; 12(10): 3590. CrossRef
Comparison of guidewires for successful cannulation of biliary stenosis and targeting of biliary branches in ERCP
Masanori Kobayashi, Hiromune Katsuda, Kazuo Ohtsuka, Ryuichi Okamoto
Endoscopy International Open.2023; 11(09): E805. CrossRef
Impact of guidewire caliber on ERCP outcomes: Systematic review and meta-analysis comparing 0.025- and 0.035-inch guidewires
Muhammad Aziz, Amna Iqbal, Zohaib Ahmed, Saad Saleem, Wade Lee-Smith, Hemant Goyal, Faisal Kamal, Yaseen Alastal, Ali Nawras, Douglas G. Adler
Endoscopy International Open.2022; 10(07): E990. CrossRef
Experimental study of loop shape using 0.025-inch ERCP guidewires (with videos)
Takeshi Ogura, Saori Ueno, Atsushi Okuda, Nobu Nishioka, Tadahiro Yamada, Masanori Yamada, Kazuya Ueshima, Jun Matsuno, Yoshitaro Yamamoto, Kazuhide Higuchi
Endoscopy International Open.2021; 09(03): E427. CrossRef
Technical Review of Developments in Endoscopic Ultrasound-Guided Hepaticogastrostomy
Takeshi Ogura, Kazuhide Higuchi
Clinical Endoscopy.2021; 54(5): 651. CrossRef
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EMJ Hepatology.2021; : 64. CrossRef
Production of ERCP training model using a 3D printing technique (with video)
Chang-Il Kwon, Yeonsun Shin, Jaeok Hong, Minje Im, Guk Bae Kim, Dong Hee Koh, Tae Jun Song, Won Suk Park, Jong Jin Hyun, Seok Jeong
BMC Gastroenterology.2020;[Epub] CrossRef
Clinical Evaluation of a Newly Developed Guidewire for Pancreatobiliary Endoscopy
Shigeto Ishii, Toshio Fujisawa, Hiroyuki Isayama, Shingo Asahara, Shingo Ogiwara, Hironao Okubo, Hisafumi Yamagata, Mako Ushio, Sho Takahashi, Hiroki Okawa, Wataru Yamagata, Yoshihiro Okawa, Akinori Suzuki, Yusuke Takasaki, Kazushige Ochiai, Ko Tomishima,
Journal of Clinical Medicine.2020; 9(12): 4059. CrossRef

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Giant Brunner's Gland Adenoma of the Proximal Jejunum Presenting as Iron Deficiency Anemia and Mimicking Intussusceptions: Chan Soo So, Hyun Joo Jang, Yun Sun Choi, Dong Hee Koh, Min Ho Choi, Sea Hyub Kae, Sun Jung Min, Jin Lee; Clin Endosc 2013;46(1):102-105. Published online January 31, 2013; DOI: https://doi.org/10.5946/ce.2013.46.1.102

Abstract PDF PubReader ePub

Brunner's gland adenoma is a rare benign proliferative lesion developing most commonly in the posterior wall of the duodenum. It is usually small in size and asymptomatic. Depending on its size or location, however, the clinical manifestations of this tumor may be variable from nonspecific symptoms to gastrointestinal bleeding or obstruction. Brunner's gland adenoma in the proximal jejunum is extremely rare. We report a very rare case of giant Brunner's gland adenoma developing in the proximal jejunum which presented as iron deficiency anemia and mimicked intussusceptions on radiologic studies.

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