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

Faculty Profiles

Tomos Walters, PhD
HS Clinical Instructor

500 Parnassus Avenue
San Francisco, CA 94117


Recent Articles (25)

Pathik B, Kalman JM, Walters T, Kuklik P, Zhao J, Madry A, Sanders P, Kistler PM, Lee G. Absence of Rotational Activity Detected Using Two-Dimensional Phase Mapping In Corresponding Three-Dimensional Phase Maps In Human Persistent Atrial Fibrillation. Heart Rhythm. 2017 Sep 13.

Walters TE, Kalman JM, Patel SK, Mearns M, Velkoska E, Burrell LM. Angiotensin converting enzyme 2 activity and human atrial fibrillation: increased plasma angiotensin converting enzyme 2 activity is associated with atrial fibrillation and more advanced left atrial structural remodelling. Europace. 2017 Aug 01; 19(8):1280-1287.

Nazer B, Walters TE, Duggirala S, Gerstenfeld EP. Feasibility of Rapid Linear-Endocardial and Epicardial Ventricular Ablation Using an Irrigated Multipolar Radiofrequency Ablation Catheter. Circ Arrhythm Electrophysiol. 2017 Mar; 10(3).

McLellan AJA, Prabhu S, Voskoboinik A, Wong MCG, Walters TE, Pathik B, Morris GM, Nisbet A, Lee G, Morton JB, Kalman JM, Kistler PM. Isolation of the posterior left atrium for patients with persistent atrial fibrillation: routine adenosine challenge for dormant posterior left atrial conduction improves long-term outcome. Europace. 2017 Feb 15.

Janaswamy P, Walters TE, Nazer B, Lee RJ. Current Treatment Strategies for Heart Failure: Role of Device Therapy and LV Reconstruction. Curr Treat Options Cardiovasc Med. 2016 Sep; 18(9):57.

Walters TE, Lee G, Spence S, Kalman JM. The effect of electrode density on the interpretation of atrial activation patterns in epicardial mapping of human persistent atrial fibrillation. Heart Rhythm. 2016 Jun; 13(6):1215-20.

Walters TE, Nisbet A, Morris GM, Tan G, Mearns M, Teo E, Lewis N, Ng A, Gould P, Lee G, Joseph S, Morton JB, Zentner D, Sanders P, Kistler PM, Kalman JM. Progression of atrial remodeling in patients with high-burden atrial fibrillation: Implications for early ablative intervention. Heart Rhythm. 2016 Feb; 13(2):331-9.

Prabhu S, McLellan AJ, Walters TE, Sharma M, Voskoboinik A, Kistler PM. Atrial structure and function and its implications for current and emerging treatments for atrial fibrillation. Prog Cardiovasc Dis. 2015 Sep-Oct; 58(2):152-67.

Walters TE, Ellims AH, Kalman JM. The role of left atrial imaging in the management of atrial fibrillation. Prog Cardiovasc Dis. 2015 Sep-Oct; 58(2):136-51.

Walters TE, Kalman JM. Human persistent atrial fibrillation is maintained by rotors: the jury is still out. Circ Arrhythm Electrophysiol. 2015 Jun; 8(3):517-9.

McLellan AJ, Ling LH, Azzopardi S, Lee GA, Lee G, Kumar S, Wong MC, Walters TE, Lee JM, Looi KL, Halloran K, Stiles MK, Lever NA, Fynn SP, Heck PM, Sanders P, Morton JB, Kalman JM, Kistler PM. A minimal or maximal ablation strategy to achieve pulmonary vein isolation for paroxysmal atrial fibrillation: a prospective multi-centre randomized controlled trial (the Minimax study). Eur Heart J. 2015 Jul 21; 36(28):1812-21.

Walters TE, Lee G, Spence S, Larobina M, Atkinson V, Antippa P, Goldblatt J, O'Keefe M, Sanders P, Kistler PM, Kalman JM. Acute atrial stretch results in conduction slowing and complex signals at the pulmonary vein to left atrial junction: insights into the mechanism of pulmonary vein arrhythmogenesis. Circ Arrhythm Electrophysiol. 2014 Dec; 7(6):1189-97.

Walters TE, Teh AW, Spence S, Morton JB, Kistler PM, Kalman JM. Absence of gender-based differences in the atrial and pulmonary vein substrate: a detailed electroanatomic mapping study. J Cardiovasc Electrophysiol. 2014 Oct; 25(10):1065-70.

Walters TE, Kalman JM. Development of atrial fibrillation after atrial flutter ablation: more a question of when than whether. J Cardiovasc Electrophysiol. 2014 Aug; 25(8):821-3.

Walters TE, Teh AW, Spence S, Kistler PM, Morton JB, Kalman JM. Relationship between the electrocardiographic atrial fibrillation cycle length and left atrial remodeling: a detailed electroanatomic mapping study. Heart Rhythm. 2014 Apr; 11(4):670-6.

McLellan AJ, Ling LH, Ruggiero D, Wong MC, Walters TE, Nisbet A, Shetty AK, Azzopardi S, Taylor AJ, Morton JB, Kalman JM, Kistler PM. Pulmonary vein isolation: the impact of pulmonary venous anatomy on long-term outcome of catheter ablation for paroxysmal atrial fibrillation. Heart Rhythm. 2014 Apr; 11(4):549-56.

Amerena JV, Walters TE, Mirzaee S, Kalman JM. Update on the management of atrial fibrillation. Med J Aust. 2013 Nov 04; 199(9):592-7.

Kumar S, Walters TE, Halloran K, Morton JB, Hepworth G, Wong CX, Kistler PM, Sanders P, Kalman JM. Ten-year trends in the use of catheter ablation for treatment of atrial fibrillation vs. the use of coronary intervention for the treatment of ischaemic heart disease in Australia. Europace. 2013 Dec; 15(12):1702-9.

Walters TE, Kistler PM, Morton JB, Sparks PB, Halloran K, Kalman JM. Impact of collimation on radiation exposure during interventional electrophysiology. Europace. 2012 Nov; 14(11):1670-3.

Walters TE, Kistler PM, Kalman JM. Radiofrequency ablation for atrial tachycardia and atrial flutter. Heart Lung Circ. 2012 Jun; 21(6-7):386-94.

Pattison DA, Walters TE, Seal E. Exercise-associated hyponatraemia on the Kokoda Track. Med J Aust. 2011 Mar 07; 194(5):247-8.

Wightman F, Walters T, Ayres A, Bowden S, Bartholomeusz A, Lau D, Locarnini S, Lewin SR. Comparison of sequence analysis and a novel discriminatory real-time PCR assay for detection and quantification of Lamivudine-resistant hepatitis B virus strains. J Clin Microbiol. 2004 Aug; 42(8):3809-12.

Lewin S, Walters T, Locarnini S. Hepatitis B treatment: rational combination chemotherapy based on viral kinetic and animal model studies. Antiviral Res. 2002 Sep; 55(3):381-96.

Torresi J, Earnest-Silveira L, Civitico G, Walters TE, Lewin SR, Fyfe J, Locarnini SA, Manns M, Trautwein C, Bock TC. Restoration of replication phenotype of lamivudine-resistant hepatitis B virus mutants by compensatory changes in the "fingers" subdomain of the viral polymerase selected as a consequence of mutations in the overlapping S gene. Virology. 2002 Jul 20; 299(1):88-99.

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