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    Find a Doctor > Dr. Sung H. Chun, M.D.
    Sung Chun

    Sung H. Chun, M.D.

    Cardiovascular Disease

    (Board Certified in Cardiovascular Disease and Electrophysiology)
    Accepting new patients


    (Board Certified)
    Accepting new patients

    Offers My Health Online

    Palo Alto Center
    795 El Camino Real
    Encina Building, Level 1
    Palo Alto, California 94301
    View Mapof 795 El Camino Real, Encina Building, Level 1, Palo Alto. Opens in new window
    (650) 853-2975  F (650) 853-2080

    Professional Interests

    Cardiovascular Disease
    Arrhythmia, Electrophysiology, Implantable cardiac defibrillator, Pacemakers, Radiofrequency ablation, Ventricular tachycardia, Wolff-Parkinson-White syndrome

    Ablation for atrial fibrillation, Ablation for supraventricular tachycardias, Ablation for ventricular tachycardia, Arrhythmia ablation, Arrhythmias of complex adult congenital heart disease, Arrhythmias of pregnancy, Atrial fibrillation, Catheter ablation of arrhythmias,
    See more + Click to expand Professional interests

    Additional Information

    Dr. Chun is one of the leading physicians in resynchronization therapy and laser defibrillator lead extraction.

    Spoken Languages

    Korean (Excellent)

    Community Activities

    American Heart Association, Heart Rhythm Society and American College of Cardiology

    Personal Interests

    Dr. Chun is married and has two children. He enjoys playing tennis and golf.

    Physician Web Link


    1. Chun SH, Sager PT, Stevenson WG, Nademanee K, Middlekauff HR, Singh BN. Long-term efficacy of amiodarone for the maintenance of normal sinus rhythm in patients with refractory atrial fibrillation or flutter. Am J Cardiol 1995;76(1):47-50.
    2. Chun S, Singh BN. Sudden death during flecainide therapy for atrial fibrillation complicating Wolff-Parkinson-White Syndrome. J Cardiovasc Pharmacol Ther 1996; 1(2):159-164.
    3. Longuemare MC, Keung EC, Chun S, Sharp FR, Chan PH, Swanson RA. MK-801 reduces uptake and stimulates efflux of excitatory amino acids via membrane depolarization. American J Phys 1996;270(5 Pt 1):C1398-1404.
    4. Desai AD, Chun S, Sung RJ. The role of intravenous amiodarone in the management of cardiac arrhythmias. Ann Intern Med 1997;127(4):294-303.
    5. Liem LB, Mead RH, Shenasa M, Chun S, Hayase M, Kernoff R. Microwave catheter ablation using a clinical prototype system with a lateral firing antenna design. Pacing Clin Electrophysiol 1998;21(4 Pt. 1):714-721.
    6. Liem LB, Daum J, Chun SH, Ottoboni LK, Gould M. Electrophysiologic Determinants of Paced-QRS Narrowing in Patients Undergoing Cardiac Resynchronization Therapy Europace 2001:73-78.
    7. Day J, Liem B, Lauer M, Young C, Han J, Goold P, Chun S, Liem L.B. Management of diaphragmatic myopotential oversensing in implantable cardioverter defibrillators Europace 2001:583-588.
    8. Liem LB, Day JD, Lee BK, Chun SH. Anatomic predictors of coronary sinus lead stability in patients undergoing cardiac resynchronization therapy. Europace 2001: 265-269.
    9. Matsushita T, Chun S, Sung R. Influence of Isoproterenol on the accelerated junctional rhythm observed during radiofrequency catheter ablation of atrioventricular nodal slow pathway conduction Am Heart J 2001 Oct;142(4):664-668.
    10. Matsushita T, Chun S, Chan NY, Glatter K, Day J, Sung R. Importance of using standard rather than torso ECG limb leads for pace mapping at the right ventricular outflow tract (RVOT) Pacing Clin Electrophysiol 2002 May;25(5):776-84
    11. Chun S, Chan E. Feasibility and Safety of Using 4 French Radiofrequency Helical Microcatheter To Ablate Pulmonary Vein Ostium in Pig Model. J Cardiovasc Electrophysiol (Submitted, February 2002).
    12. Partington S, Froelicher VF, Cho S, Myers J, Chun S. Prognostic Value of PVCs Noted on a Random Resting ECG. Arch Intern Med (Submitted, February 2002).
    13. Partington S, Myers J, Cho S, Froelicher VF, Chun S. Prevalence and Prognostic Value of Exercise-induced Ventricular Arrhythmias. Am Heart J. 2003 Jan;145(1):139-46
    14. Lewalter T, Burkhardt D, Chun S, Schimpf R, Bielik H, Schrickel J, Shlevkov N, Yang A, Luderitz B. Decremental intravenous pulse propagation during extrastimulus pacing:relevance for catheter ablation of focal atrial fibrillation. Europace (2002) 4, 411-415
    15. Ghayoumi A, Raxwal V, Cho, S, Myers J, Chun S. Prognostic Value of Exercise Tests in Male Veterans with Chronic Coronary Artery Disease. JCR Nov/Dec 2002: 22 (6):399-408
    16. Matsushita T, Chun S, Liem LB, Friday KJ, Sung RJ. Unidirectional Conduction Block at Cavotricuspid Isthmus Created by Radiofrequency Catheter Ablation in Patients with Typical Atrial Flutter. J Cardiovasc Electrophysiol. 2002 Nov;13(11):1098-102
    17. Matsushita T, Chun S, Liem LB, Friday KJ, Sung RJ. Limited Predictive Value of Inducible Sustained Ventricular Tachycardia for Future Occurrence of Spontaneous Ventricular Tachycardia in Patients with Coronary Artery Disease and Relatively Preserved Cardiac Function. J Electrocardiol. 2003 Jul;36(3)205-11
    18. Athwal H, Murphy G Jr, Chun S. Amiodarone-induced Delirium. Am J Geriatr Psychiatry 2003 Nov-Dec;11(6):696-7
    19. Shah B, Yamazaki T, Engel G, Cho S, Chun S, Froelicher V. Computerized QT Dispersion Measurement and Cardiovascular Mortality in Male Veterans. Am J Cardiol 2004 Feb 15;;93(4):483-6

    Philosophy of Care

    Medicine in general, but more so in the field of cardiology, our knowledge and technology are expanding rapidly. As a sub-subspecialist I can provide the latest and the most comprehensive treatment and technology to rhythm disorder patients. However, heart rhythm disorder is not always strictly due to pure derangement of an electrical conduction system of the heart; it is often intertwined with patient's other physical and emotional aspects. This is not forgotten, I take more comprehensive approach with each heart rhythm patient.

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