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Jong Jin Hyun

Korea University · Medicine

About the Lab

Professor Jong Jin Hyun's research lab specializes in gastrointestinal endoscopy and digestive disease, with a primary focus on the pathophysiology of gastroesophageal reflux disease (GERD), including the role of hiatal hernias and the lower esophageal sphincter in antireflux barrier function. The lab also investigates endoscopic therapeutic techniques such as endoscopic mucosal resection and band ligation for esophageal varices, emphasizing safety, efficacy, and optimization of submucosal injection solutions. Additionally, the lab explores the management of chronic and acute pancreatitis, as well as treatment strategies for gastric MALT lymphoma.

GERDendoscopic therapyhiatal herniapancreatitisMALT lymphoma

Research Overview

Papers
268
Total Citations
3,038
Papers (5y)
33
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
33total
2022
2023
2024
2025
2026
Citations per year (5y)
57total
20222023202420252026

Selected Papers

15
1
Article|164 citations·2011
Clinical Significance of Hiatal Hernia
Jong Jin Hyun, Young‐Tae Bak
SJR Q1Gut and LiverOA

The relationship between hiatal hernias and gastroesophageal reflux disease (GERD) has been greatly debated over the past decades, with the importance of hiatal hernias first being overemphasized and then later being nearly neglected. It is now understood that both the anatomical (hiatal hernia) and the physiological (lower esophageal sphincter) features of the gastroesophageal junction play important, but independent, roles in the pathogenesis of GERD, constituting the widely accepted "two-sphi

GastroenterologyMedicine
2
Review|92 citations·2014
Experimental Models of Pancreatitis
Jong Jin Hyun, Hong Sik Lee
SJR Q2Clinical EndoscopyOA

Acute pancreatitis is an inflammatory disease characterized by interstitial edema, inflammatory cell infiltration, and acinar cell necrosis, depending on its severity. Regardless of the extent of tissue injury, acute pancreatitis is a completely reversible process with evident normal tissue architecture after recovery. Its pathogenic mechanism has been known to be closely related to intracellular digestive enzyme activation. In contrast to acute pancreatitis, chronic pancreatitis is characterize

SurgeryMedicine
3
Article|80 citations·2016
A prospective multicenter study of submucosal injection to improve endoscopic snare papillectomy for ampullary adenoma
Jong Jin Hyun, Tae Hoon Lee, Jin‐Seok Park, Joung‐Ho Han, Seok Jeong, Seon Mee Park, Hong Sik Lee, Jong Ho Moon, Sang-Heum Park
SJR Q1Gastrointestinal Endoscopy
OncologyMedicine
4
Article|65 citations·2005
Comparison of the characteristics of submucosal injection solutions used in endoscopic mucosal resection
Jong Jin Hyun, Hwang Rae Chun, Hwang Rae Chun, Hoon Jai Chun, Hoon Jai Chun, Yoon Tae Jeen, Chang Won Baeck, Sang Kyun Yu, Yong Sik Kim, Hong Sik Lee, Soon Ho Um, Sang Woo Lee
SJR Q2Scandinavian Journal of Gastroenterology

OBJECTIVE: Submucosal injection is used to prevent complications, such as perforation, during endoscopic mucosal resection (EMR). Since injection of normal saline produces mucosal elevation of short duration, repeated injection is needed for extensive resection. To overcome this limitation, various submucosal injection solutions have been developed but there are few data comparing their efficacy. This study was therefore conducted to compare the physical and chemical properties and the duration

Pulmonary and Respiratory MedicineMedicine
5
Article|57 citations·2010
Treatment outcome of localizedHelicobacter pylori-negative low-grade gastric MALT lymphoma
Jong Jin Hyun
SJR Q1World Journal of GastroenterologyOA

Eradication therapy may be offered as an initial treatment option even in cases of localized H. pylori-negative gastric MALT lymphoma.

Pulmonary and Respiratory MedicineMedicine
6
Article|42 citations·2011
Clinical Significance of Hiatal Hernia
현종진, 박영태

The relationship between hiatal hernias and gastroesophageal reflux disease (GERD) has been greatly debated over the past decades, with the importance of hiatal hernias first being overemphasized and then later being nearly neglected. It is now understood that both the anatomical (hiatal hernia) and the physiological (lower esophageal sphincter) features of the gastroesophageal junction play important, but independent, roles in the pathogenesis of GERD, constituting the widely accepted “two-sphi

7
Article|41 citations·2016
Proton Pump Inhibitor Therapy Is Associated With Reduction of Early Bleeding Risk After Prophylactic Endoscopic Variceal Band Ligation
Seong Hee Kang, Hyung Joon Yim, Seung Young Kim, Sang Jun Suh, Jong Jin Hyun, Sung Woo Jung, Young Kul Jung, Ja Seol Koo, Sang Woo Lee
SJR Q3MedicineOA

Endoscopic variceal band ligation (EVL) is an effective procedure to control and prevent variceal bleeding in patients with liver cirrhosis, but it can be complicated by bleeding from post-EVL ulcers. Several studies have reported that proton pump inhibitors (PPIs) decrease the size of post-EVL ulcers. However, evidence are limited as to whether PPIs actually reduce the risk of bleeding after EVL. This study aimed to analyze the factors associated with bleeding after prophylactic EVL and to asse

HepatologyMedicine
8
Article|34 citations·2011
Comparison of the efficacies of lamivudine versus entecavir in patients with hepatitis B virus‐related decompensated cirrhosis
Jong Jin Hyun, Yeon Seok Seo, Eileen L. Yoon, Tae Hyung Kim, Dong Jin Kim, Hyun Seok Kang, Eun Suk Jung, Jeong Han Kim, Hyonggin An, Ji Hoon Kim, Hyung Joon Yim, Jong Eun Yeon
SJR Q1Liver International

BACKGROUND: Suppression of hepatitis B virus (HBV) DNA is more potent, and occurrence of resistant strain is rare with entecavir than lamivudine, but whether these merits result in a more favourable outcome in HBV-related decompensated cirrhosis patients is unclear. AIMS: To compare virologic response, changes in liver function, clinical course and predictive factors for early mortality after treatment between patients treated with lamivudine and those with entecavir in HBV-related decompensated

EpidemiologyMedicine
9
Article|26 citations·2015
Efficacy of Magnesium Trihydrate of Ursodeoxycholic Acid and Chenodeoxycholic Acid for Gallstone Dissolution: A Prospective Multicenter Trial
Jong Jin Hyun, Hong Sik Lee, Chang Duck Kim, Seok Ho Dong, Seung Ok Lee, Ji Kon Ryu, Don Haeng Lee, Seok Jeong, Tae Nyeun Kim, Jin Lee, Dong Hee Koh, Eun Taek Park
SJR Q1Gut and LiverOA

Magnesium trihydrate of UDCA and CDCA is a well-tolerated bile acid that showed similar efficacy for gallstone dissolution and improvement of gallstone-related symptoms as that shown in previous studies.

Pulmonary and Respiratory MedicineMedicine
10
Article|25 citations·2019
Outcomes of Infected versus Symptomatic Sterile Walled-Off Pancreatic Necrosis Treated with a Minimally Invasive Therapy
Jong Jin Hyun, Nadav Sahar, AnSingla, Andrew S. Ross, Shayan Irani, S. Ian Gan, Michael Larsen, Richard A. Kozarek, Michael Glück
SJR Q1Gut and LiverOA

This study confirms that infected WON has worse outcomes than sterile WON but also demonstrates that WON, once considered a significant cause of death, can be treated with good outcomes using minimally invasive therapy.

SurgeryMedicine
11
Article|24 citations·2019
Significance of radiographic splenic vessel involvement in the pancreatic ductal adenocarcinoma of the body and tail of the gland
Jong Jin Hyun, J. Bart Rose, Adnan Alseidi, Thomas Biehl, Scott Helton, David Coy, Richard A. Kozarek, Flavio G. Rocha
SJR Q1Journal of Surgical Oncology

BACKGROUND AND OBJECTIVES: Unlike pancreatic head tumors, little is known about the biological significance of radiographic vessel involvement with pancreatic body/tail adenocarcinoma. We hypothesized radiographic splenic vessel involvement may be an adverse prognostic factor. METHODS: All distal pancreatectomies performed for resectable pancreatic adenocarcinoma between 2000 and 2016 were reviewed and clinicopatholgic data were collected, retrospectively. Preoperative computed tomography imagin

OncologyMedicine
12
Article|22 citations·2021
Influence of Metabolic Syndrome on Cancer Risk in HBV Carriers: A Nationwide Population Based Study Using the National Health Insurance Service Database
Jung Wan Choe, Jong Jin Hyun, Bongseong Kim, Kyungdo Han
SJR Q1Journal of Clinical MedicineOA

Purpose: Hepatitis B virus (HBV) infection and metabolic syndrome (MS) are known independent risk factors for hepatocellular carcinoma (HCC) and other extrahepatic organ malignancies. The purpose of this study was to investigate whether MS and HBV have synergistic effects on cancers and to examine whether increasing the number of MS components could lead to higher risk of cancer development. Materials and Methods: We evaluated data from 1,504,880 HBV-infected adults who underwent a regular HCC s

EpidemiologyMedicine
13
Article|21 citations·2010
Terlipressin-induced hyponatremic seizure
Jong Jin Hyun, Yeon Seok Seo, Kwang Gyun Lee, Bora Keum, Hyung Joon Yim, Yoon Tae Jeen, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim, Ho Sang Ryu
SJR Q2Scandinavian Journal of Gastroenterology

Terlipressin is a splanchnic constrictor that is used to control variceal bleeding and is considered to have a very good safety profile compared to vasopressin. However, side effects such as hyponatremia and seizure, although very rare, can occur. Recently, the authors have experienced a case of hyponatremia induced by infusion of terlipressin which resulted in generalized seizure. On admission, the patient's sodium level was 141 mmol/l but, 4 days after the initiation of terlipressin, it plumme

Pulmonary and Respiratory MedicineMedicine
14
Article|20 citations·2012
Optimal time for repeating the IgM anti-hepatitis A virus antibody test in acute hepatitis A patients with a negative initial test
Jong Jin Hyun, Yeon Seok Seo, Hyonggin An, Sun Young Yim, Min Ho Seo, Hye Sook Kim, Chang Ha Kim, Ji Hoon Kim, Bora Keum, Yong Sik Kim, Hyung Joon Yim, Hong Sik Lee
The Korean Journal of HepatologyOA

BACKGROUND/AIMS: The nonspecific clinical presentation of acute hepatitis A (AHA) mandates the detection of anti-hepatitis A virus IgM antibodies (IgM anti-HAV) in the serum for obtaining a definitive diagnosis. However, IgM anti-HAV might not be present during the early phase of the disease. The aim of this study was to determine the optimal time for repeating the IgM anti-HAV test (HAV test) in AHA patients with a negative initial test. METHODS: In total, 261 patients hospitalized with AHA wer

HepatologyMedicine
15
Article|19 citations·2013
Expression of Heat Shock Protein 70 Modulates the Chemoresponsiveness of Pancreatic Cancer
Jong Jin Hyun, Hong Sik Lee, Bora Keum, Yeon Seok Seo, Yoon Tae Jeen, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim
SJR Q1Gut and LiverOA

Modulation of HSP 70 expression with quercetin enhanced the chemoresponsiveness of PCCs to gemcitabine. The mechanism of cell death was both apoptosis and autophagy.

Molecular BiologyBiochemistry, Genetics and Molecular Biology

Research Areas

SurgeryPulmonary and Respiratory MedicineOncologyGastroenterologyHepatologyEpidemiology

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