Byung Chul Chang, MD, PhD  

Professor, Yonsei University College of Medicine, Yonsei University, Seoul, Korea


Byung Chul Chang, MD, PhD, is a Professor of Cardiovascular Surgery at Severance Hospital, Yonsei University in Seoul, Korea. He specializes in adult cardiac surgery, especially in valve repair and replacement, and surgery for atrial fibrillation(AF). He had his MD degree at Yonsei University, in 1977. He completed the Thoracic and Cardiovascular Surgery Residency at Severance Hospital, Korea in 1982. After his military service, he has remained in the Division of Cardiovascular Surgery at Severance Hospital since 1985. In 1987, he received Evarts A Graham traveling fellowship from American Association for Thoracic Surgery. During the fellowship, he had participated in research to develop Maze procedure for AF under Dr. James L Cox in Washington University School of Medicine, St. Louis. In 1989, he came back to Korea and established a program of anti-coagulation services for patients with heart valve disease. In 1994, he established a heart transplantation program. Furthermore, he established an implantable LAVD program in 2000, and successfully transplanted in a patient, first time in Korea. He actively participated in the international scientific meetings including AHA. In addition to scientific contributions, he supported Mongolia for prevention and early management of stroke and heart attack as a consultant of WHO project named “Stroke and Heart Attack” between 2012-2013. He was nominated as a president of Korean Society for Thoracic & Cardiovascular Surgery in 2013-1014.




Candidate Contributions to the field supporting AHA’s mission


"building healthier lives, free of cardiovascular diseases and stroke"


Since 1985, Professor Byung Chul Chang, MD, PhD, have been interested in surgery for cardiac arrhythmia and heart valve disease especially rheumatic in origin, which were prevalent in developing country. He had participated in animal research to develop surgical ablation of atrial fibrillation(AF) under Dr. James L Cox at Washington University School of Medicine between 1987 and 1989. He contributed significantly to understand mechanism of atrial flutter and AF that would be a fundamental surgical technique for Maze procedure. After coming back to Korea, he started surgery for hart valve disease including AF ablation. He established valve clinic for anticoagulation service and started clinical research for heart valve repair and replacement. Thereafter, he reported long-term outcomes after heart valve repair and replacement in scientific journals. And his team reported optimal anticoagulation level(INR) in Korean patients. With his clinical background, he delivered lectures in Asia-Pacific scientific conferences including AHA2011 and AHA2012. Since, 2012, he also was invited to review abstracts submitted for consideration to AHA scientific sessions. In addition to the scientific interest, he also interested in prevention and management of heart diseases in the 3rd country, especially in Mongolia. Recently, he supported Mongolia for prevention and early management of stroke and heart attack as a consultant of WHO project named “Stroke and Heart Attack” between 2012-2013.

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2014/11/17 19:42 2014/11/17 19:42

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Home address:

 #202, MV Apt. 46 Banpo-dong, Seocho-gu, Seoul,
137-082, Korea 

Office address:

 Division of Cardiovascular Surgery
 Severance Cardiovascular Hospital 

 Yonsei University College of Medicine
 250 Seongsanno Seodaemun-gu,  Seoul 120-752 Korea

 e-mail;, FAX; 82-2-393-2041


Birth date: April 7, 1953     Sex: Male     Marital Status: Married  

Place of Birth: Daegu, South Korea  


Professor Byung-Chul Chang is an influential medical doctor and administrator who has worked for the betterment of healthcare and designed and implemented future-oriented medical information systems in Korea during his distinguished career. Dr. Chang is a professor of Division of Cardiovascular Surgery in Severance Hospital, Yonsei University Health System (YUHS) since 1985. His academic and scientific carrier was outstanding. Dr. Chang was an Evarts. A Graham Travelling Fellow of American Association of Thoracic Surgery in 1987.  He was a key researcher in developing surgical management of atrial fibrillation with Dr. James L. Cox at Washington University School of Medicine in 1987-1989. Dr. Chang is a world's leading cardiac surgeon and was nominated as a active member of American Association of Thoracic Surgery in 2007. The membership is a very honorary and there are only 2 members in Korea.

 In 1992, Dr. Chang worked with Oder Communication System (OCS) to develop and implement a Server/Client system in the Yonsei Cardiovascular Center. The system was later expanded to the Severance Hospital, YUHS and upgraded with a Windows NT Server/Client system.
In 2004, Professor Chang was nominated as CIO of Yonsei University Health System. He is currently managing a new project named ubiquitous Hospital System for YUHS, another medical information system designed to improve services to patients. It was successfully implemented at the Severance Hospital in November 2005. Later in July 2006, the system was expanded to include the Youngdong Severance Hospital. Currently, Dr. Chang continues his work with information systems as a CIO of YUHS. Dr. Chang is also working as a 2008-2010 Chairman of Executive Board for the Korean Society of Medical Informatics.


In September 2008, Dr. Chang was nominated as a Director of Severance Cardiovascular Hospital, YUHS.

2008/08/11 13:31 2008/08/11 13:31
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2008/08/01 09:03 2008/08/01 09:03


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