Zian Tseng, MD

Cardiologist and electrophysiologist

Dr. Zian H. Tseng, a cardiologist and electrophysiologist, is an expert in determining the risk of patients prone to sudden cardiac death (SCD) and ventricular arrhythmias. He also specializes in the ablation of complex arrhythmias, implanting defibrillators and resynchronizing heart devices, and extracting the leads or wires for heart devices. In addition, Tseng is involved with developing new device treatments.

In 2010, Tseng was awarded a five-year grant from the National Institutes of Heath to more accurately define SCD, the conditions underlying SCD, and its risk factors. He also is studying the genetics of SCD and the risk of sudden death with the use of Tasers by law enforcement agencies. A Bay Area native, he completed undergraduate studies in molecular biology and biochemistry at the University of California, Berkeley and earned a medical degree at UCSF, where he also completed a year of graduate studies in biomedical sciences. He completed internal medicine, cardiology, and cardiac electrophysiology subspecialty training at UCSF, where he is a professor of medicine.


Asian Heart and Vascular Center
1600 Divisadero St., Second Floor, Suite C-244
San Francisco, CA 94115
Appointments: (415) 885-3678
Events: (415) 885-3678
Fax: (415) 885-3676

Cardiac Electrophysiology and Arrhythmia Service
400 Parnassus Ave., Fifth Floor
San Francisco, CA 94143
Phone: (415) 353-2554
Fax: (415) 353-2528

Hours: Monday to Friday
8 a.m. – 5 p.m.

Cardiovascular Genetics Program
400 Parnassus Avenue, Plaza Level, Room 94
San Francisco, CA 94143
Phone: (415) 353-2873
Fax: (415) 476-5355

Hours: Monday
noon – 4 p.m

Conditions & Treatments

Board Certification

Cardiovascular Disease, American Board of Internal Medicine
Clinical Cardiac Electrophysio, American Board of Internal Medicine

Academic Title


More about Zian Tseng

Additional Languages



UCSF School of Medicine 1998


UCSF Medical Center 2000


UCSF Medical Center, Cardiology 2002
UCSF Medical Center, Cardiac Electrophysiology 2004

Selected Research and Publications

  1. Devinsky O, Friedman D, Cheng JY, Moffatt E, Kim A, Tseng ZH. Underestimation of sudden deaths among patients with seizures and epilepsy. Neurology. 2017 Aug 29; 89(9):886-892.
  2. Nascimento FA, Tseng ZH, Palmiere C, Maleszewski JJ, Shiomi T, McCrillis A, Devinsky O. Pulmonary and cardiac pathology in sudden unexpected death in epilepsy (SUDEP). Epilepsy Behav. 2017 Aug; 73:119-125.
  3. Hayward RM, Foster E, Tseng ZH. Maternal and Fetal Outcomes of Admission for Delivery in Women With Congenital Heart Disease. JAMA Cardiol. 2017 Jun 01; 2(6):664-671.
  4. Moffatt E, Tseng ZH. Commentary on: Mauf S, Jentzsch T, Laberke PJ, Thali MJ, Bartsch C. Why we need postmortem analysis of cardiac implantable electronic devices. J Forensic Sci 2016;61(4):988-92. J Forensic Sci. 2017 Jan; 62(1):274.
  5. Nguyen KT, Gladstone RA, Dukes JW, Nazer B, Vittinghoff E, Badhwar N, Vedantham V, Gerstenfeld EP, Lee BK, Lee RJ, Tseng ZH, Olgin JE, Scheinman MM, Marcus GM. The QT Interval as a Noninvasive Marker of Atrial Refractoriness. Pacing Clin Electrophysiol. 2016 Dec; 39(12):1366-1372.
  6. Kim AS, Moffatt E, Ursell PC, Devinsky O, Olgin J, Tseng ZH. Sudden neurologic death masquerading as out-of-hospital sudden cardiac death. Neurology. 2016 Oct 18; 87(16):1669-1673.
  7. Kawamura M, Scheinman MM, Tseng ZH, Lee BK, Marcus GM, Badhwar N. Comparison of remote magnetic navigation ablation and manual ablation of idiopathic ventricular arrhythmia after failed manual ablation. J Interv Card Electrophysiol. 2017 Jan; 48(1):35-42.
  8. Tseng ZH. Risk of Cardiovascular Implantable Electronic Device Malfunction With Radiation Therapy: Location, Dose, or Energy? JAMA Intern Med. 2015 Oct; 175(10):1698-9.
  9. Tseng ZH, Hayward RM, Clark NM, Mulvanny CG, Colburn BJ, Ursell PC, Olgin JE, Hart AP, Moffatt E. Sudden Death in Patients With Cardiac Implantable Electronic Devices. JAMA Intern Med. 2015 Aug; 175(8):1342-50.
  10. Ito H, Kawamura M, Badhwar N, Vedantham V, Tseng ZH, Lee BK, Lee RJ, Marcus GM, Gerstenfeld EP, Scheinman MM. The Effect of Direct Current Stimulation versus T-Wave Shock on Defibrillation Threshold Testing. Pacing Clin Electrophysiol. 2015 Oct; 38(10):1173-80.
  11. Bhatt AB, Foster E, Kuehl K, Alpert J, Brabeck S, Crumb S, Davidson WR, Earing MG, Ghoshhajra BB, Karamlou T, Mital S, Ting J, Tseng ZH. Congenital heart disease in the older adult: a scientific statement from the American Heart Association. Circulation. 2015 May 26; 131(21):1884-931.
  12. Hayward RM, Dewland TA, Moyers B, Vittinghoff E, Tanel RE, Marcus GM, Tseng ZH. Device complications in adult congenital heart disease. Heart Rhythm. 2015 Feb; 12(2):338-44.
  13. Hayward RM, Tseng ZH. Arrhythmias in Complex Congenital Heart Disease. Card Electrophysiol Clin. 2014 Sep 01; 6(3):623-634.
  14. Refaat MM, Hotait M, Tseng ZH. Utility of the exercise electrocardiogram testing in sudden cardiac death risk stratification. Ann Noninvasive Electrocardiol. 2014 Jul; 19(4):311-8.
  15. Singh DK, Viswanathan MN, Tanel RE, Lee RJ, Lee BK, Marcus GM, Olgin JE, Han F, Vedantham V, Tseng ZH, Pellegrini C, Kawamura M, Gerstenfeld EP, Badhwar N, Scheinman M. His overdrive pacing during supraventricular tachycardia: a novel maneuver for distinguishing atrioventricular nodal reentrant tachycardia from atrioventricular reciprocating tachycardia. Heart Rhythm. 2014 Aug; 11(8):1327-35.
  16. Hoffmayer KS, Dewland TA, Hsia HH, Badhwar N, Hsu JC, Tseng ZH, Marcus GM, Scheinman MM, Gerstenfeld EP. Safety of radiofrequency catheter ablation without coronary angiography in aortic cusp ventricular arrhythmias. Heart Rhythm. 2014 Jul; 11(7):1117-21.
  17. Stepanyan G, Badhwar N, Lee RJ, Marcus GM, Lee BK, Tseng ZH, Vedantham V, Olgin J, Scheinman M, Gerstenfeld EP. Safety of new oral anticoagulants for patients undergoing atrial fibrillation ablation. J Interv Card Electrophysiol. 2014 Jun; 40(1):33-8.
  18. Kawamura M, Badhwar N, Vedantham V, Tseng ZH, Lee BK, Lee RJ, Marcus GM, Olgin JE, Gerstenfeld EP, Scheinman MM. Coupling interval dispersion and body mass index are independent predictors of idiopathic premature ventricular complex-induced cardiomyopathy. J Cardiovasc Electrophysiol. 2014 Jul; 25(7):756-62.
  19. Refaat MM, Aouizerat BE, Pullinger CR, Malloy M, Kane J, Tseng ZH. Association of CASQ2 polymorphisms with sudden cardiac arrest and heart failure in patients with coronary artery disease. Heart Rhythm. 2014 Apr; 11(4):646-52.
  20. Moyers BS, Secemsky EA, Vittinghoff E, Wong JK, Havlir DV, Hsue PY, Tseng ZH. Effect of left ventricular dysfunction and viral load on risk of sudden cardiac death in patients with human immunodeficiency virus. Am J Cardiol. 2014 Apr 01; 113(7):1260-5.

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.