Clinical Activity

Interventional Electrophysiology

Catheter ablation and electrophysiological study

  • Atrial fibrillation (AF)
  • Atrial tachycardia (AT) and atrial flutter (AFL)
  • Paroxysmal supraventricular tachycardia (PSVT)
  • Wolff-Parkinson-White (WPW) syndrome
  • Ventricular tachycardia (VT): idiopathic, ischemic and non-ischemic cardiomyopathy

Device therapy

  • Pacemaker, Conduction system pacing, Leadless pacing
  • Cardiac resynchronization therapy (CRT)
  • Implantable cardioverter defibrillator (ICD)
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Historical Landmarks

  • Establishment of Division of Cardiology (Professor Young Woo Lee, 16 JUL 1978)
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  • EP study (Yun-Shik Choi, 11 JAN 1983, 1st in Korea), Cases in JAN 1983-AUG 1984 were published in Korean Circ J. 1985 Mar;15(1):1-12.
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  • Pacemaker implantation (Yun-Shik Choi, 28 MAY 1984)
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  • Publication of Clinical Electrocardiology (임상심전도학) (Yun-Shik Choi, 1987)
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  • RF catheter ablation (RFCA) (AVNRT case, Yun-Shik Choi, 21 OCT 1992), Initial 34 AVNRT cases were published in Am Heart J. 1995 Feb;129(2):392-4.
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  • ICD implantation (Yun-Shik Choi, 27 JUL 1999)
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  • Implantation of dual chamber pacemaker leads in a patient with absent right SVC and persistent left SVC (Seil Oh, 06 AUG 2003, 1st report in Korea)
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  • Introduction of intracardiac echocardiography (ICE) to AF ablation (Seil Oh, 26 APR 2006, 1st in Korea)
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  • Application of 3D electroanatomical mapping to catheter ablation (VT case, Seil Oh, 27 JUN 2006)
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  • CRT implantation (Seil Oh, 25 SEP 2006)
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  • Implantation of skeletal myoblast and ICD in patients with ischemic cardiomyopathy (Seil Oh, 2007, 1st in Korea)
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  • Transhepatic implantation of CIED lead (Myung-Jin Cha, 2017, 1st report in Korea)
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  • LAA occlusion (Myung-Jin Cha, 2017)
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  • LA wall thickness  map for AF ablation (Seil Oh, started in 2017, published in Int J Arrhythm 22, 16 (2021). https://doi.org/10.1186/s42444-021-00046-8)
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  • Fluoroless RF catheter ablation in a patient with atypical atrial flutter (Myung-Jin Cha, 31 OCT 2018)
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  • Subcutaneous ICD implantation (Eue-Keun Choi, 03 APR 2019)
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  • Cryoablation for AF (Eue-Keun Choi and Myung-Jin Cha, 24 APR 2019)
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  • Noninvasive Radioablation for VT (Myung-Jin Cha, 02 SEP 2019)
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  • Permanent LBB-area pacing (So-Ryoung Lee and Seil Oh, 04 FEB 2021)
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  • Leadless pacemaker implantation (So-Ryoung Lee, 24 FEB 2021)
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  • Permanent His-bundle pacing (So-Ryoung Lee, 24 JUN 2024)
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  • Permanent Bachmann’s bundle pacing (Hyo-Jeong Ahn, 12 DEC 2024)
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  • 3D Pulsed-electrical field ablation (PFA) for AF (Eue-Keun Choi, Kyung-Yeon Lee, Hyo-Jeong Ahn, Seil Oh, 14 JAN 2025, 1st in Korea)
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