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Digestive Disease Center

Introduction to the Center

The internal medicine department for Gastroenterology is the department in charge of the diagnoses and treatments of various diseases afflicting the esophagus, stomach, small intestine, large intestine, or rectum and abnormalities in the biliary system including the liver and gall bladder or pancreas.

Major diseases dealt with by the internal medicine department for Gastroenterology are very diversified, ranging from those diseases commonly reported by the general public such as reflux esophageal diseases, indigestion, gastritis, irritable bowel syndrome, fatty liver, hepatitis, and cholelithiasis to those major diseases ranking high in terms of cancer incident rates and mortality such as stomach cancer, liver cancer, colon cancer, pancreatic cancer, etc.

Treatments & Services

Upper gastrointestinal diseases such as gastritis, gastroduodenal ulcer, non-ulcer dyspepsia, and lower gastrointestinal diseases such as infectious diarrhea, diverticulitis, intestinal tuberculosis, chronic inflammatory bowel diseases, irritable bowel syndrome, etc.

Liver diseases such as acute or chronic hepatitis caused by hepatitis B or C virus, alcoholic hepatitis, toxic hepatitis, and fatty liver
Biliary tract diseases such as gallstones, cholecystitis, and acute or chronic pancreatitis
This department is also in charge of the early diagnoses and treatments of Gastroenterology cancers
that are common in our country such as stomach cancer, liver cancer, and colon cancer in collaboration
with the surgery department and radiology department.

The internal medicine department for Gastroenterology performs colonoscopy along with gastroduodenal ulcer or esophageal varix, endoscopic polypectomy on the stomach or large intestine, and therapeutic endoscopy to remove common duct stones

Chairperson

Kim, Na-Young | M.D.

nakim@snubh.org: Dr Kim's research group focuses on the Helicobacter pylori, especially on the effect of H. pylori infection on the development of gastric cancer, and treatment of H. pylori infection. This includes research on the link between H. pylori infection and gastric cancer in the aspect of risk factors such as cancer family and intestinal metaplasia. The research on the mechanism of H. pylori-induced gastric cancer includes genetic factors and epigenetic factors such as methylation of gastric tissue as well as toxic factors of H. pylori. Her group also perform leading research regarding resistance of antibiotics of H. pylori to establish the most adequate rescue therapy for the failures of the standard proton pump inhibitor based triple therapy. In addition, Dr Kim's research group is participating in the research of Gastroesophageal Reflux Disease (GERD), in the aspect of clinical features and epidemiology of GERD.

Gastroenterology

Song, In-Sung | M.D.
Specialty : Abdomen, esophagopathy, colon disease: Specialization
Abdomen, esophagopathy, colon disease

Education
College of Medicine, Seoul National University (1965-1971)
Graduate School of Medicine, SNU (Master of Science in Medicine) (1972-1974)
Graduate School of Medicine, SNU (PhD) (1974-1979)

Professional experience
Professor, College of Medicine, SNU (1980-present)
8th Asia-Pacific Society of Gastroenterology (Secretary-general) (1987-1988)
Korean Scientific Research Foundation (Director) (1992-2004)
Korean Society of Gastroenterology (President) (2001-2003)
SNU Hospital (Manager of Internal Medicine Dept.) (2002-2006)
2005 Asia-Pacific Society of Gastroenterology (Chairman) (2003-2005)
Chongwadae Presidential Secretariat (Attending physician for the 16th President of Korea) (2003-2008)
Korean Society of Internal Medicine (President) (2007-2010)
2014 International Society of Internal Medicine (Bid chairman) (2007-2008)
International Society of Internal Medicine (Director) (2008- present)

Research field
Digestive system (identification of peptic ulcer，Helicobacter pylori, and reflux esophagitis pathophysiology,　identification of inflammatory bowel disease pathophysiology and development of its remedy)

Thesis
Song　In-sung, Kim Jeong-ryong : "Changing patterns of HBsAg in Korean people by seasons and years," Gastroenterology, 1979; 22: 791-799. Song　In-sung, Masahiro Yoshioka, Roger H. Erickson, Soichiro Miura, Difu Guan and Kim Young S. : "Identification and characterization of brush-border membrane bound neutral etaloendopeptidases from rat small intestine," Gastroenterology, 1986; 91: 1234-1242.
Lee, Dong-Ho | M.D.: Professor Lee was a visiting professor and research fellow in the Division of Gastroenterology, University of California San Diego, California, US. Professor Lee has published numerous articles on Helicobacter pylori and peptic ulcer disease, and gastric cancer with his work appearing in Helicobacter, Digestive Diseases and Sciences, Journal of Gastroenterology and was formerly on the boards of Korean Journal of Gastrointestinal Motility and Korean Journal of Gastrointestinal Endoscopy.
Jeong, Sook-Hyang | M.D.: A hepatologist specialized in management of the patients with acute and chronic liver disease including hepatitis, liver cirrhosis and liver cancer.
Kim, Jin-Wook | M.D.
Specialty : liver cancer, liver cirrhosis, chronic viral hepatitis B, chronic hepatitis C, fatty liver disease: Professor Kim graduated Seoul National University College of Medicine in 1989 and received residency training in Seoul National University Hospital. He has completed his PhD course in Seoul National University College of Medicine in 1994. The speicialty of professor Kim includes liver cancer, end stage liver disease, viral hepatitis and fatty liver disease. Professor Kim worked at UC Davis medical center as a visiting professor (2005-2006) on the methylation of eukaryotic promoter induced by short hairpin RNAs. Currently Dr. Kim's research focuses on the mechanisms of hepatitis B virus (HBV) replication, epigenetic regulation of HBV gene expression and novel therapeutic strategies against hepatocellular carcinoma.
Hwang, Jin-Hyeok | M.D.

jhhwang@snubh.org: Dr. Hwang is a professor of Division of Gastroenterology. His research interests are target therapy and development of biomarkers related to long-term outcome of pancreatic cancer and cholangiocarcinoma. Recently, he completed research fellowship in National Cancer Institute (NCI) in Bethesda, MD, USA. He had been studying genome-wide alterations and miRNAs expression in Korean pancreatic cancers at NCI. He is also focusing on advanced therapeutic endoscopic procedure.
Park, Young-Soo | M.D.
Specialty : Digestive system diseases (colon disease, colon cancer, inflammatory bowel disease, gastric cancer, esophageal cancer, gastric ulcer, gastritis)

dkree@snubh.org: Specialty
Digestive system diseases (colon disease, colon cancer, inflammatory bowel disease, gastric cancer, esophageal cancer, gastric ulcer, gastritis)

Education
Bachelor of Science in Medicine, Yonsei University College of Medicine (1994)
Master of Science in Medicine, Yonsei University College of Medicine (2003)

Professional experience
Internship, Severance Hospital (1997 - 1998)
Residency, Severance Hospital (1998 - 2002)
Specialist, Severance Hospital (2002 - 2004)
Professor, Internal Medicine Dept. of SNU Bundang Hospital (2004 - present)
Shin, Cheol-Min | M.D.: A gastroenterologist Shin graduated from SNU College of Medicine and did his internship, residency, and fellowship courses at SNU Hospital. He is currently a practitioner at SNU Bundang Hospital in the diagnosis of gastric cancer (most common cancer in Korea) and endoscopic treatment of early gastric cancer, diagnosis of colon cancer and endoscopic treatment for colon polyps, and inflammatory bowel diseases (Crohn’s disease and ulcerative colitis) as well as diagnosis of esophageal cancer/diseases and small bowel diseases. He is an active academic researcher on the following: epigenetics study on the developmental process and genetic factors for gastric cancer; study of small bowel hemorrhage prevention through the use of non-steroidal, anti-inflammatory drugs; study of gastroesophageal reflux diseases, and; many clinical studies on the prevention of colon polyps.
Kim, Jaihwan | M.D. Specialty : Cancer - Pancreatic cancer, Gallbladder cancer, Bile duct cancer Benign disease - Gallstone, Pancreatitis Endoscopy - Endoscopic retrograde cholangiopancreatography, Endoscopic ultrasound: Professor Kim graduated from Seoul National University college of medicine and underwent his internship, residency, and fellowship courses at Seoul National University hospital. He is now working at division of gastroenterology in Seoul National University Bundang hospital. His specialities are pancreas and biliary diseases, especially pancreatobilliary cancers. His research interests are endoscopic intervention, early diagnosis and treatment of pancreatobiliary cancers.
Yoon, Hyuk | M.D. Specialty : Inflammatory bowel disease (ulcerative colitis, Crohn’s disease, Intestinal tuberculosis, Behcet’s colitis), Therapeutic endoscopy (colon cancer/polyp, gastric cancer/adenoma), small bowel and large bowel disease yoonh@snuh.org: Education
Bachelor of Science in Medicine, Seoul National University College of Medicine (2003) Master of Science in Medicine, Seoul National University College of Medicine (2012)

Professional experience
Internship, Seoul National University Hospital (2006 - 2007) Residency, Seoul National University Hospital (2007 - 2011) Fellowship, Seoul National University Hospital (2011 - 2013) Assistant Professor, Internal Medicine Dept. of SNU Bundang Hospital (2013 - present)
Jang, Eun-Sun | M.D. Specialty :liver cancer, liver cirrhosis, chronic viral hepatitis B, chronic hepatitis C, fatty liver disease: MD, PhD
Professor Jang graduated from Seoul National University college of medicine and underwent her internship, residency, and fellowship courses at Seoul National University hospital. She has completed her PhD course in Seoul National University College of Medicine. She is now working at division of gastroenterology in Seoul National University Bundang hospital as an assistant professor. Her specialities are liver cancer, end stage liver disease, viral hepatitis and fatty liver disease. She is a certificated expert on the endoscopic examination and treatment.
Choi, Yoon Jin | M.D. Specialty : astric cancer, esophageal cancer, dyspepsia, dysphagia, Irritable bowel disorder and colon cancer: Professor Yoon Jin Choi specializes in upper gastrointestinal tract part of Gastroenterology. She has much experience in gastric cancer and functional gastrointestinal disorders including gastroesophageal reflux diseases, dyspepsia or irritable bowel syndrome. She is currently collecting human samples to evaluate the relationship between human intestinal microbiota and aging or gastrointestinal diseases.

	Yoon, Hyuk \| M.D. Specialty : Inflammatory bowel disease (ulcerative colitis, Crohn’s disease, Intestinal tuberculosis, Behcet’s colitis), Therapeutic endoscopy (colon cancer/polyp, gastric cancer/adenoma), small bowel and large bowel disease yoonh@snuh.org

	Kim, Na-Young \| M.D. nakim@snubh.org

	Song, In-Sung \| M.D. Specialty : Abdomen, esophagopathy, colon disease

	Lee, Dong-Ho \| M.D.

	Jeong, Sook-Hyang \| M.D.