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5 "Dong Uk Kim"
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Original Article
Evaluation of cryoablation using a prototype cryoablation needle in swine liver
Hyunjoon Son, Jonghyun Lee, Sung Yong Han, Tae In Kim, Dong Uk Kim, Daejin Kim, Gun-Ho Kim
Clin Endosc 2024;57(5):675-682.   Published online July 29, 2024
DOI: https://doi.org/10.5946/ce.2024.024
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Pancreatic cancer poses significant challenges due to its tendency for late-stage diagnosis and high mortality rates. Cryoablation, a technique used to treat various types of cancer, has shown potential in enhancing the prognosis of pancreatic cancer when combined with other therapies. However, its implementation is often limited by the need for lengthy procedures and specialized equipment. This study aims to develop a cryoablation needle optimized for endoscopic ultrasonography to simplify its application in treating pancreatic cancer.
Methods
The study involved conducting cryoablation experiments on swine liver tissue. It utilized cryo-needles to evaluate the extent of cell death across various temperatures and durations of cryoablation.
Results
The cryoablation system, which employed liquid carbon dioxide, achieved rapid cooling, reaching temperatures below –60 °C within 30 seconds and maintained the cryoablation process for 200 seconds. These conditions resulted in necrosis of the liver tissue. Notable cellular changes were observed up to 15 mm away from the cryoablation needle.
Conclusions
This experimental study successfully demonstrated the efficacy of using a cryo-needle for cryoablation in swine liver tissue. Further trials involving pancreatic tissue are expected to verify its effectiveness, underscoring the importance of continued research to establish its role as a complementary therapy in pancreatic cancer treatment.
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Commentary
Convex versus Radial Echoendoscopes - Comparison of Capability for Evaluating the Pancreatobiliary Junction
Sung Yong Han, Dong Uk Kim
Clin Endosc 2018;51(3):211-212.   Published online May 16, 2018
DOI: https://doi.org/10.5946/ce.2018.065
PDFPubReaderePub

Citations

Citations to this article as recorded by  
  • Evaluation of a novel radial echoendosonoscope with a piezoelectric-composite transducer
    Sheng Wang, Jintao Guo, Xiang Liu, Nan Ge, Guoxin Wang, Jinlong Hu, Kai Zhang, Siyu Sun
    Endoscopic Ultrasound.2021; 10(6): 431.     CrossRef
  • 4,231 View
  • 78 Download
  • 1 Web of Science
  • 1 Crossref
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Case Report
Bile Duct Patency Maintained after Intraductal Radiofrequency Ablation in a Case of Hepatocellular Cholangiocarcinoma with Bile Duct Invasion
Sung Yong Han, Geun Am Song, Dong Uk Kim, Dong Hoon Baek, Moon Won Lee, Gwang Ha Kim
Clin Endosc 2018;51(2):201-205.   Published online August 31, 2017
DOI: https://doi.org/10.5946/ce.2017.097
AbstractAbstract PDFPubReaderePub
Combined hepatocellular-cholangiocarcinoma (HCC-CC) with bile duct invasion (BDI) is rare. In unresectable cases, biliary stent placement and photodynamic therapy (PDT) are used for resolving obstructive jaundice. However, stent occlusion remains problematic, and PDT is expensive and time-consuming. Intraductal radiofrequency ablation (RFA) is an emerging procedure for palliation in these patients. It has potential benefits including less expense, lower rates of severe complication, longer maintenance of ductal patency, and easier technique compared with PDT or stenting alone. We report a 67-year-old man who underwent repeated intraductal RFA for HCC-CC and HCC with BDI (HCC-BDI), for whom bile duct patency was maintained without additional biliary procedures.

Citations

Citations to this article as recorded by  
  • Clinical and cost effectiveness of endoscopic bipolar radiofrequency ablation for the treatment of malignant biliary obstruction: a systematic review
    Fiona Beyer, Stephen Rice, Giovany Orozco-Leal, Madeleine Still, Hannah O’Keefe, Nicole O’Connor, Akvile Stoniute, Dawn Craig, Stephen Pereira, Louise Carr, John Leeds
    Health Technology Assessment.2023; : 1.     CrossRef
  • Improving biliary stent patency for malignant obstructive jaundice using endobiliary radiofrequency ablation: experience in 150 patients
    Ya-Lin Kong, Hong-Yi Zhang, Cheng-Li Liu, Xiao-Jun He, Gang Zhao, Cheng Wang, Ling-Hong Kong, Jing Zhao
    Surgical Endoscopy.2022; 36(3): 1789.     CrossRef
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  • 163 Download
  • 2 Web of Science
  • 2 Crossref
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Commentary
Is the Balloon Dilation Duration in Endoscopic Papillary Balloon Dilation (EPBD) Related to the Occurrence of Post-EPBD Pancreatitis?
Dong Uk Kim
Clin Endosc 2015;48(1):6-7.   Published online January 31, 2015
DOI: https://doi.org/10.5946/ce.2015.48.1.6
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Citations

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  • Dilation Time in Endoscopic Papillary Balloon Dilation for Common Bile Duct Stones
    Yong-Hua Shen, Liu-Qing Yang, Yu-Ling Yao, Lei Wang, Yi-Yang Zhang, Jun Cao, Qi-Bin He, Xiao-Ping Zou, Yun-Hong Li
    Surgical Laparoscopy, Endoscopy & Percutaneous Techniques.2017; 27(5): 351.     CrossRef
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  • 50 Download
  • 1 Web of Science
  • 1 Crossref
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Original Article
Clipping for the Prevention of Immediate Bleeding after Polypectomy of Pedunculated Polyps: A Pilot Study
Sun-Jin Boo, Jeong-Sik Byeon, Seon Young Park, Jong Sun Rew, Da Mi Lee, Sung Jae Shin, Dong Uk Kim, Geum Am Song
Clin Endosc 2012;45(1):84-88.   Published online March 31, 2012
DOI: https://doi.org/10.5946/ce.2012.45.1.84
AbstractAbstract PDFPubReaderePub
Background/Aims

Immediate postpolypectomy bleeding (IPPB) increases the procedure time and it may disturb performing a safe polypectomy. The purpose of this study is to investigate whether clipping before snare polypectomy of large pedunculated polyps is useful for the prevention of IPPB.

Methods

This is a single arm, pilot study. We enrolled patients with pedunculated colorectal polyps that were 1 cm in size or more from 4 university hospitals between June 2009 and June 2010. Clips were applied at the stalk and snare polypectomy was then performed. The complications, including IPPB, were investigated.

Results

Fifty six pedunculated polyps in 47 patients (Male:Female=36:11; age, 56±11 years) were included. The size of the polyp heads was 17±8 mm. Tubular adenoma was most common (57%). The number of clips used before snare polypectomy was 2±0.5. The procedure was successful in all cases. IPPB occurred in 2 cases (3.6%), and both of these were managed by additional clipping. Delayed bleeding occurred in another one case (1.8%), which improved with conservative treatment. No perforation occurred.

Conclusions

We suggest that clipping before snare polypectomy of pedunculated polyps may be an easy and effective technique for the prevention of IPPB, and this should be confirmed in large scale, prospective, controlled studies.

Citations

Citations to this article as recorded by  
  • A novel technique using endoscopic band ligation for removal of long-stalked (>10 mm) pedunculated colon polyps
    Hyun Ho Choi, Chang Whan Kim, Hyung-Keun Kim, Sang Woo Kim, Sok Won Han, Kyung Jin Seo, Hiun-Suk Chae
    Saudi Journal of Gastroenterology.2021; 27(5): 296.     CrossRef
  • Endoscopic polypectomy devices
    Vinay Chandrasekhara, Nikhil A. Kumta, Barham K. Abu Dayyeh, Manoop S. Bhutani, Pichamol Jirapinyo, Kumar Krishnan, John T. Maple, Joshua Melson, Rahul Pannala, Mansour A. Parsi, Amrita Sethi, Guru Trikudanathan, Arvind J. Trindade, David R. Lichtenstein
    VideoGIE.2021; 6(7): 283.     CrossRef
  • Prophylactic clip application for large pedunculated polyps before snare polypectomy may decrease immediate postpolypectomy bleeding
    Jae Seung Soh, Myeongsook Seo, Kyung-Jo Kim
    BMC Gastroenterology.2020;[Epub]     CrossRef
  • Management of colonic polyps: an advancing discipline
    Amir Klein, Michael J. Bourke
    ANZ Journal of Surgery.2017; 87(5): 327.     CrossRef
  • Massive post‐polypectomy hemorrhage: Successful tulip‐bundle technique with endoloop for hemostasis
    Hsu‐Heng Yen, Chia‐Wei Yang, Shun‐Sheng Wu, Maw‐Soan Soon
    Advances in Digestive Medicine.2016; 3(3): 128.     CrossRef
  • Advanced Polypectomy and Resection Techniques
    Amir Klein, Michael J. Bourke
    Gastrointestinal Endoscopy Clinics of North America.2015; 25(2): 303.     CrossRef
  • Comparison of clipping with and without epinephrine injection for the prevention of post‐polypectomy bleeding in pedunculated colon polyps
    Yehyun Park, Tae Joo Jeon, Ji Young Park, Soo Jung Park, Jae Hee Cheon, Tae Il Kim, Won Ho Kim, Sung Pil Hong
    Journal of Gastroenterology and Hepatology.2015; 30(10): 1499.     CrossRef
  • Endoscopic haemostasis: An overview of procedures and clinical scenarios
    Jérémie Jacques, Romain Legros, Stanislas Chaussade, Denis Sautereau
    Digestive and Liver Disease.2014; 46(9): 766.     CrossRef
  • Advanced Endoscopic Resection of Colorectal Lesions
    Andres Sanchez-Yague, Tonya Kaltenbach, Gottumukkala Raju, Roy Soetikno
    Gastroenterology Clinics of North America.2013; 42(3): 459.     CrossRef
  • A Cost-efficacy Decision Analysis of Prophylactic Clip Placement After Endoscopic Removal of Large Polyps
    Neehar D. Parikh, Kyle Zanocco, Rajesh N. Keswani, Andrew J. Gawron
    Clinical Gastroenterology and Hepatology.2013; 11(10): 1319.     CrossRef
  • Fat Polyp, Thin Blood: Think Clip!
    Laura Borodyansky, John R. Saltzman
    Clinical Gastroenterology and Hepatology.2013; 11(10): 1333.     CrossRef
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