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Zian H. Tseng, M.D., M.A.S., a cardiologist and a cardiac electrophysiologist, joined the faculty in 2004, bringing expertise in risk stratification of patients prone to sudden death and ventricular arrhythmias. Dr. Tseng, a Bay Area native, was the top 1998 graduate from the UCSF School of Medicine, where he also completed a year of graduate studies in Biomedical Sciences and a Master's in Advanced Studies in Clinical Research. He completed his clinical training in internal medicine, cardiology, and cardiac electrophysiology at UCSF.

CLINICAL INTERESTS:
1) Treatment of complex supraventricular arrhythmias, including catheter ablation of atrial fibrillation and left atrial tachycardias occurring after atrial fibrillation ablation
2) Treatment and catheter ablation of ventricular tachycardia, including epicardial mapping and ablation
3) Treatment, risk stratification, and catheter ablation of arrhythmias in adult patients with congenital heart disease
4) Risk stratification and treatment of patients with high risk arrhythmia syndromes
5) Implantation of intracardiac devices for treatment of heart failure (resynchronization) and risk of sudden cardiac death (defibrillators)
6) Application of new device technologies, such as performing percutaneous epicardial left atrial appendage (LAA) ligation in patients with atrial fibrillation in conjunction with Dr. Randall Lee

RESEARCH INTERESTS:
1) Principal Investigator for the Comprehensive Characterization of Sudden Cardiac Death in San Francisco, a 5-year NIH/NHLBI grant awarded in 2010 aiming to more accurately define sudden cardiac death (SCD), arrhythmic sudden death, and its risk factors, in collaboration with the County Medical Examiner
2) Genetic epidemiology and risk factors for sudden cardiac arrest
3) Sudden cardiac death and ventricular arrhythmias in the setting of HIV disease
4) Sudden neurologic death
5) Sudden death risk and public/health policy for use of Tasers (electrical conductive devices) by law enforcement agencies