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UCSF Cardiology
Transforming medicine through innovation and collaboration.
Department of Medicine

Faculty Profiles

Byron Lee, MD

500 Parnassus Avenue
San Francisco, CA 94117

CLINICAL INTERESTS: Dr. Lee is a Cardiologist and a Cardiac Electrophysiologist. His main clinical interests include conduction disorders, arrhythmias, catheter ablation, implantable devices (including pacemakers, defibrillators and biventricular defibrillators), lead extraction, atrial fibrillation, atrial flutter, supraventricular tachycardias, ventricular tachycardias, and sudden death.

RESEARCH INTERESTS: Dr. Lee has a Masters Degree in Clinical Research. He had done research on arrhythmias after organ transplant, the effects of the TASER on the heart, ICD complications, the effects of second hand smoking on heart rhythm, and risk stratficiation after myocardial infarction. Currently, he is the Co-PI of the VEST study, a multi-center, international randomized study to determine whether a wearable defibrillator vest can reduce the big early sudden death rate post-MI.

Education and Training

Location Degree or Training Specialty Date
UCSF Master's Degree in Clinical Research Biostatistics and Epidemiology 2005
Stanford University Medical Center Cardiac Electrophysiology Medicine 2001
Stanford University Medical Center Cardiology Medicine 2000
Stanford University Medical Center Internal Medicine Medicine 1997
Harvard Medical School M.D. School of Medicine 1994

Awards and Honors

2010   Excellence in Teaching Award, UCSF School of Medicine, 2010-2011

Related Web Sites

In the News

Recent Articles (60)

Guo X, Vittinghoff E, Vedantham V, Pletcher MJ, Lee BK. Trends in Hospitalizations for Cardiac Sarcoidosis in the United States, 2005-2011. Circ J. 2017 Sep 13.

Lee BK, Marcus GM. For cryoballoon ablation, time to effect is time well spent. Heart Rhythm. 2017 Sep; 14(9):1326-1327.

Elayi CS, Charnigo RJ, Heron PM, Lee BK, Olgin JE. Primary Prevention of Sudden Cardiac Death Early Post-Myocardial Infarction: Root Cause Analysis for Implantable Cardioverter-Defibrillator Failure and Currently Available Options. Circ Arrhythm Electrophysiol. 2017 Jun; 10(6).

Kalscheur MM, Saxon LA, Lee BK, Steinberg JS, Mei C, Buhr KA, DeMets DL, Bristow MR, Singh SN. Outcomes of cardiac resynchronization therapy in patients with intermittent atrial fibrillation or atrial flutter in the COMPANION trial. Heart Rhythm. 2017 Jun; 14(6):858-865.

Whitman IR, Gladstone RA, Badhwar N, Hsia HH, Lee BK, Josephson SA, Meisel KM, Dillon WP, Hess CP, Gerstenfeld EP, Marcus GM. Brain Emboli After Left Ventricular Endocardial Ablation. Circulation. 2017 Feb 28; 135(9):867-877.

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 Oct 18.

Lee BK, Olgin JE. The Wearable Cardioverter-Defibrillator: Is It Now the Standard of Care? Circulation. 2016 Aug 30; 134(9):644-6.

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.

Brooks GC, Lee BK, Rao R, Lin F, Morin DP, Zweibel SL, Buxton AE, Pletcher MJ, Vittinghoff E, Olgin JE. Predicting Persistent Left Ventricular Dysfunction Following Myocardial Infarction: The PREDICTS Study. J Am Coll Cardiol. 2016 Mar 15; 67(10):1186-96.

Hoffmayer KS, Lee BK, Vedantham V, Bhimani AA, Cakulev IT, Mackall JA, Sahadevan J, Rho RW, Scheinman MM. Response to letter regarding article, "variable clinical features and ablation of manifest nodofascicular/ventricular pathways". Circ Arrhythm Electrophysiol. 2015 Aug; 8(4):995.

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.

Hoffmayer KS, Lee BK, Vedantham V, Bhimani AA, Cakulev IT, Mackall JA, Sahadevan J, Rho RW, Scheinman MM. Variable clinical features and ablation of manifest nodofascicular/ventricular pathways. Circ Arrhythm Electrophysiol. 2015 Feb; 8(1):117-27.

Psotka MA, Lee BK. Atrial fibrillation: antiarrhythmic therapy. Curr Probl Cardiol. 2014 Oct; 39(10):351-91.

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.

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.

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.

Hsu JC, Badhwar N, Gerstenfeld EP, Lee RJ, Mandyam MC, Dewland TA, Imburgia KE, Hoffmayer KS, Vedantham V, Lee BK, Tseng ZH, Scheinman MM, Olgin JE, Marcus GM. Randomized trial of conventional transseptal needle versus radiofrequency energy needle puncture for left atrial access (the TRAVERSE-LA study). J Am Heart Assoc. 2013 Oct; 2(5):e000428.

Soleimani Rahbar A, Hsu JC, Han FT, Nguyen N, Kwon M, Azadani PN, Marcus GM, Lee BK. Trainee inexperience is associated with longer procedure times but no increase in complications for cardiac device implantation. Heart Rhythm. 2013 Dec; 10(12):1755-8.

Rahbar AS, Azadani PN, Thatipelli S, Fleischmann KE, Nguyen N, Lee BK. Risk factors and prognosis for clot formation on cardiac device leads. Pacing Clin Electrophysiol. 2013 Oct; 36(10):1294-300.

Duggirala S, Lee BK. Optimizing cardiac resynchronization therapy for congestive heart failure. Curr Probl Cardiol. 2013 Jun; 38(6):215-37.

Azadani PN, Soleimanirahbar A, Marcus GM, Haight TJ, Hollenberg M, Olgin JE, Lee BK. Asymptomatic Left Bundle Branch Block Predicts New-Onset Congestive Heart Failure and Death From Cardiovascular Diseases. Cardiol Res. 2012 Dec; 3(6):258-263.

Sung RK, Massie BM, Varosy PD, Moore H, Rumsfeld J, Lee BK, Keung E. Long-term electrical survival analysis of Riata and Riata ST silicone leads: National Veterans Affairs experience. Heart Rhythm. 2012 Dec; 9(12):1954-61.

Mandyam MC, Vedantham V, Scheinman MM, Tseng ZH, Badhwar N, Lee BK, Lee RJ, Gerstenfeld EP, Olgin JE, Marcus GM. Alcohol and vagal tone as triggers for paroxysmal atrial fibrillation. Am J Cardiol. 2012 Aug 1; 110(3):364-8.

Hsu JC, Badhwar N, Lee BK, Vedantham V, Tseng ZH, Marcus GM. Predictors of fluoroscopy time and procedural failure during biventricular device implantation. Am J Cardiol. 2012 Jul 15; 110(2):240-5.

Soleimanirahbar A, Lee BK. The TASER safety controversy. Expert Rev Med Devices. 2011 Nov; 8(6):661-3.

Azadani PN, Tseng ZH, Ermakov S, Marcus GM, Lee BK. Funding source and author affiliation in TASER research are strongly associated with a conclusion of device safety. Am Heart J. 2011 Sep; 162(3):533-7.

Hsu JC, Friday J, Lee BK, Azadani PN, Lee RJ, Badhwar N, Tseng ZH, Olgin JE, Marcus GM. Predictors of axillary vein location for vascular access during pacemaker and defibrillator lead implantation. Pacing Clin Electrophysiol. 2011 Dec; 34(12):1585-92.

Hoffmayer KS, Yang Y, Joseph S, McCabe JM, Bhave P, Hsu J, Ng RK, Lee BK, Badhwar N, Lee RJ, Tseng ZH, Olgin JE, Narayan SM, Marcus GM, Scheinman MM. Predictors of unusual ECG characteristics in cavotricuspid isthmus-dependent atrial flutter ablation. Pacing Clin Electrophysiol. 2011 Oct; 34(10):1251-7.

Azadani PN, Kumar UN, Yang Y, Scheinman MM, Hoopes CW, Marcus GM, Rifkin C, Olgin JE, Lee BK. Frequency of atrial flutter after adult lung transplantation. Am J Cardiol. 2011 Mar 15; 107(6):922-6.

Yang Y, Varma N, Badhwar N, Tanel RE, Sundara S, Lee RJ, Lee BK, Tseng ZH, Marcus GM, Kim AM, Olgin JE, Scheinman MM. Prospective observations in the clinical and electrophysiological characteristics of intra-isthmus reentry. J Cardiovasc Electrophysiol. 2010 Oct; 21(10):1099-106.

Lee BK. Approach to Cardiac Device Malfunction. Card Electrophysiol Clin. 2010 Jun; 2(2):267.

Bhave PD, Lee BK. The Path Less Taken. Card Electrophysiol Clin. 2010 Jun; 2(2):273-275.

Nguyen DT, Tseng ZH, Lee BK, Badhwar N. Ventricular Tachycardia After Implantable Cardioverter-Defibrillator Placement. Card Electrophysiol Clin. 2010 Jun; 2(2):277-280.

Marcus GM, Smith LM, Ordovas K, Scheinman MM, Kim AM, Badhwar N, Lee RJ, Tseng ZH, Lee BK, Olgin JE. Intracardiac and extracardiac markers of inflammation during atrial fibrillation. Heart Rhythm. 2010; 7(2):149-54.

Lee BK, Olgin JE. Role of wearable and automatic external defibrillators in improving survival in patients at risk for sudden cardiac death. Curr Treat Options Cardiovasc Med. 2009 Oct; 11(5):360-5.

Hsu JC, Tanel RE, Lee BK, Scheinman MM, Badhwar N, Lee RJ, Tseng ZH, Olgin JE, Marcus GM. Differences in accessory pathway location by sex and race. Heart Rhythm. 2010 Jan; 7(1):52-6.

Sakhuja R, Smith LM, Tseng ZH, Badhwar N, Lee BK, Lee RJ, Scheinman MM, Olgin JE, Marcus GM. Test characteristics of neck fullness and witnessed neck pulsations in the diagnosis of typical AV nodal reentrant tachycardia. Clin Cardiol. 2009 Aug; 32(8):E13-8.

Saxon LA, Olshansky B, Volosin K, Steinberg JS, Lee BK, Tomassoni G, Guarnieri T, Rao A, Yong P, Galle E, Leigh J, Ecklund F, Bristow MR. Influence of left ventricular lead location on outcomes in the COMPANION study. J Cardiovasc Electrophysiol. 2009 Jul; 20(7):764-8.

Lee BK, Vittinghoff E, Whiteman D, Park M, Lau LL, Tseng ZH. Relation of Taser (electrical stun gun) deployment to increase in in-custody sudden deaths. Am J Cardiol. 2009 Mar 15; 103(6):877-80.

Kim AM, Turakhia M, Lu J, Badhwar N, Lee BK, Lee RJ, Marcus GM, Tseng ZH, Scheinman M, Olgin JE. Impact of remote magnetic catheter navigation on ablation fluoroscopy and procedure time. Pacing Clin Electrophysiol. 2008 Nov; 31(11):1399-404.

Turakhia M, Prasad M, Olgin J, Badhwar N, Tseng ZH, Lee R, Marcus GM, Lee BK. Rates and severity of perforation from implantable cardioverter-defibrillator leads: a 4-year study. J Interv Card Electrophysiol. 2009 Jan; 24(1):47-52.

McCabe JM, Smith LM, Tseng ZH, Badhwar N, Lee BK, Lee RJ, Scheinman MM, Olgin JE, Marcus GM. Protracted CRP elevation after atrial fibrillation ablation. Pacing Clin Electrophysiol. 2008 Sep; 31(9):1146-51.

Pellegrini CN, Yeh RW, Olgin J, Lee BK. Episodic ventricular pacing with intact atrioventricular nodal function in a DDDR device: what is the rhythm and how can it be prevented? Heart Rhythm. 2008 Jun; 5(6):897-8.

Marcus GM, Smith LM, Whiteman D, Tseng ZH, Badhwar N, Lee BK, Lee RJ, Scheinman MM, Olgin JE. Alcohol intake is significantly associated with atrial flutter in patients under 60 years of age and a shorter right atrial effective refractory period. Pacing Clin Electrophysiol. 2008 Mar; 31(3):266-72.

Marcus GM, Smith LM, Vittinghoff E, Tseng ZH, Badhwar N, Lee BK, Lee RJ, Scheinman MM, Olgin JE. A first-degree family history in lone atrial fibrillation patients. Heart Rhythm. 2008 Jun; 5(6):826-30.

Marcus GM, Hoang KL, Hunt SA, Chun SH, Lee BK. QT dispersion is not associated with sudden cardiac death or mortality in heart transplant recipients. Heart Surg Forum. 2008; 11(5):E281-4.

Marcus GM, Smith LM, Glidden DV, Wilson E, McCabe JM, Whiteman D, Tseng ZH, Badhwar N, Lee BK, Lee RJ, Scheinman MM, Olgin JE. Markers of inflammation before and after curative ablation of atrial flutter. Heart Rhythm. 2008 Feb; 5(2):215-21.

Day JD, Doshi RN, Belott P, Birgersdotter-Green U, Behboodikhah M, Ott P, Glatter KA, Tobias S, Frumin H, Lee BK, Merillat J, Wiener I, Wang S, Grogin H, Chun S, Patrawalla R, Crandall B, Osborn JS, Weiss JP, Lappe DL, Neuman S. Inductionless or limited shock testing is possible in most patients with implantable cardioverter- defibrillators/cardiac resynchronization therapy defibrillators: results of the multicenter ASSURE Study (Arrhythmia Single Shock Defibrillation Threshold Testing Versus Upper Limit of Vulnerability: Risk Reduction Evaluation With Implantable Cardioverter-Defibrillator Implantations). Circulation. 2007 May 8; 115(18):2382-9.

Turakhia MP, Varosy PD, Lee K, Tseng ZH, Lee R, Badhwar N, Scheinman M, Lee BK, Olgin JE. Impact of renal function on survival in patients with implantable cardioverter-defibrillators. Pacing Clin Electrophysiol. 2007 Mar; 30(3):377-84.

Viswanathan MN, Tseng ZH, Goldschlager N, Lee BK. Unusual atrial-paced tachycardia after pacemaker implantation: what is the mechanism? Heart Rhythm. 2007 Jun; 4(6):800-2.

Heidenreich PA, Schnittger I, Strauss HW, Vagelos RH, Lee BK, Mariscal CS, Tate DJ, Horning SJ, Hoppe RT, Hancock SL. Screening for coronary artery disease after mediastinal irradiation for Hodgkin's disease. J Clin Oncol. 2007 Jan 1; 25(1):43-9.

Marcus GM, Ren X, Tseng ZH, Badhwar N, Lee BK, Lee RJ, Foster E, Olgin JE. Repeat transseptal catheterization after ablation for atrial fibrillation. J Cardiovasc Electrophysiol. 2007 Jan; 18(1):55-9.

Marcus GM, Yang Y, Varosy PD, Ordovas K, Tseng ZH, Badhwar N, Lee BK, Lee RJ, Scheinman MM, Olgin JE. Regional left atrial voltage in patients with atrial fibrillation. Heart Rhythm. 2007 Feb; 4(2):138-44.

Marcus GM, Hoang KL, Hunt SA, Chun SH, Lee BK. Prevalence, patterns of development, and prognosis of right bundle branch block in heart transplant recipients. Am J Cardiol. 2006 Nov 1; 98(9):1288-90.

Marcus GM, Lee BK, Scheinman MM. Initiation of antidromic reciprocating tachycardia: what is the mechanism? Heart Rhythm. 2006 Jul; 3(7):865.

Heidenreich PA, Hancock SL, Vagelos RH, Lee BK, Schnittger I. Diastolic dysfunction after mediastinal irradiation. Am Heart J. 2005 Nov; 150(5):977-82.

Matsushita T, Badhwar N, Collins KK, Van Hare GF, Barbato G, Lee BK, Lee RJ, Scheinman MM. Usefulness of a ventricular extrastimulus from the summit of the ventricular septum in diagnosis of septal accessory pathway in patients with supraventricular tachycardia. Am J Cardiol. 2004 Mar 1; 93(5):643-6.

Heidenreich PA, Hancock SL, Lee BK, Mariscal CS, Schnittger I. Asymptomatic cardiac disease following mediastinal irradiation. J Am Coll Cardiol. 2003 Aug 20; 42(4):743-9.

Lee BK, Atwood JE. Images in clinical medicine. Calcified left ventricular aneurysm. N Engl J Med. 2003 Mar 6; 348(10):918.

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