GregoryEngelMD

Cardiology • East Palo Alto, CA

Cardiac Electrophysiology, Echocardiography, Nuclear Cardiology

Silicon Valley Cardiology

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Office
1950 University Ave
Ste 160
East Palo Alto, CA 94303
Phone+1 650-617-8100

Fax+1 650-327-2947
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Education & Training

Stanford Health Care-Sponsored Stanford UniversityFellowship, Clinical Cardiac Electrophysiology, 2004 - 2005
Stanford Health Care-Sponsored Stanford UniversityFellowship, Cardiovascular Disease, 2001 - 2004
Stanford Health Care-Sponsored Stanford UniversityResidency, Internal Medicine, 1997 - 2000
Stanford University School of MedicineClass of 1997

Certifications & Licensure

CA State Medical License 1998 - 2025
American Board of Internal Medicine Cardiovascular Disease
American Board of Internal Medicine Clinical Cardiac Electrophysiology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification eClinicalWorks EHR, eClinicalWorks LLC, 2012-2013

Publications & Presentations

PubMed

Early ablation of newly diagnosed paroxysmal atrial fibrillation (NEWPaAF) versus newly diagnosed persistent atrial fibrillation (NEWPeAF): Comparison of patient popul...
Roger A Winkle, R Hardwin Mead, Gregory Engel, Jonathan Salcedo, Chad Brodt, Patricia Barberini, Cynthia Lebsack, Melissa H Kong, Shadi Kalantarian, Rob A Patrawala> ;Journal of Cardiovascular Electrophysiology. 2024 Mar 14
6 citations
Very long term outcomes of atrial fibrillation ablation.
Roger A Winkle, R Hardwin Mead, Gregory Engel, Jonathan Salcedo, Chad Brodt, Patricia Barberini, Cynthia Lebsack, Melissa H Kong, Shadi Kalantarian, Rob A Patrawala> ;Heart Rhythm. 2023 May 1
6 citations
The development of the extravascular defibrillator with substernal lead placement: A new Frontier for device-based treatment of sudden cardiac arrest.
Amy E Thompson, Brett Atwater, Lucas Boersma, Ian Crozier, Gregory Engel, Paul Friedman, J Rod Gimbel, Bradley P Knight, Jaimie Manlucu, Francis Murgatroyd, David O'Do...> ;Journal of Cardiovascular Electrophysiology. 2022 Jun 1
3 citations
Internationally validated score to predict the outcome of non-paroxysmal atrial fibrillation ablation: the 'FLAME score'.
Vennela Boyalla, Julian W.E. Jarman, Vias Markides, Wajid Hussain, Tom Wong, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala, Roger A. Winkle> ;Open Heart. 2021 Aug 1
39 citations
High Power Short Duration Atrial Fibrillation Ablations using Contact Force Sensing Catheters: Outcomes and Predictors of Success Including Posterior Wall Isolation
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Jonathan Salcedo, Chad R. Brodt, Rob A. Patrawala> ;Heart Rhythm. 2020 Aug 1
8 citations
Feasibility and Reliability of Rapid Diagnosis of Myocardial Infarction.
Gregory Engel, Stanley G Rockson> ;The American Journal of the Medical Sciences. 2020 Feb 1
161 citations
Low complication rates using high power (45-50 W) for short duration for atrial fibrillation ablations.
Roger A. Winkle, Sanghamitra Mohanty, Rob A. Patrawala, R. Hardwin Mead, Melissa H. Kong, Gregory Engel, Jonathan Salcedo, Chintan Trivedi, Carola Gianni, Pierre Jaïs,...> ;Heart Rhythm. 2019 Feb 1
7 citations
Catheter ablation for failed surgical maze: comparison of cut and sew vs. non-cut and sew maze.
Roger A. Winkle, William Fleming, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Jonathan Salcedo, Rob A. Patrawala, Luis J. Castro, Vincent A. Gaudiani> ;Journal of Interventional Cardiac Electrophysiology. 2019 Jan 31
81 citations
Atrial fibrillation ablation using very short duration 50 W ablations and contact force sensing catheters.
Roger A. Winkle, Ryan Moskovitz, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, William Fleming, Jonathan Salcedo, Rob A. Patrawala, John H. Tranter, Isaac Shai> ;Journal of Interventional Cardiac Electrophysiology. 2018 Feb 19
24 citations
Feasibility of extravascular pacing with a novel substernal electrode configuration: The Substernal Pacing Acute Clinical Evaluation study.
Darius Sholevar, Stanley Tung, Vikas Kuriachan, Peter Leong-Sit, Henri Roukoz, Gregory Engel, Steven P. Kutalek, Devender Akula, Amy Thompson, Melissa G.T. Christie, M...> ;Heart Rhythm. 2017 Dec 2
70 citations
Impact of obesity on atrial fibrillation ablation: Patient characteristics, long-term outcomes, and complications.
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, William Fleming, Jonathan Salcedo, Rob A. Patrawala> ;Heart Rhythm. 2017 Jun 1
29 citations
Ablation of atypical atrial flutters using ultra high density-activation sequence mapping
Roger A. Winkle, Ryan Moskovitz, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, William Fleming, Rob A. Patrawala> ;Journal of Interventional Cardiac Electrophysiology. 2017 Mar 1
134 citations
Predicting atrial fibrillation ablation outcome: The CAAP-AF score
Roger A. Winkle, Julian W.E. Jarman, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, William Fleming, Rob A. Patrawala> ;Heart Rhythm. 2016 Nov 1
29 citations
Sir2/Sirt1 Links Acute Inebriation to Presynaptic Changes and the Development of Alcohol Tolerance, Preference, and Reward.
Gregory L. Engel, Sunanda Marella, Karla R. Kaun, Julia Wu, Pratik Adhikari, Eric C. Kong, Fred W. Wolf> ;The Journal of Neuroscience. 2016 May 11
27 citations
MRI scanning in patients with new and existing CapSureFix Novus 5076 pacemaker leads: Randomized trial results
Jayaprakash Shenthar, Goran Milasinovic, Ahmed Al Fagih, Marco J.W. Götte, Gregory Engel, Steven D. Wolff, Hung-Fat Tse, Julie Herr, John A. Carrithers, Jeffrey Cerkve...> ;Heart Rhythm. 2015 Apr 1
45 citations
Peri-procedural interrupted oral anticoagulation for atrial fibrillation ablation: comparison of aspirin, warfarin, dabigatran, and rivaroxaban.
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Europace. 2014 Aug 12
20 citations
Atrial fibrillation ablation using open-irrigated tip radiofrequency: experience with intraprocedural activated clotting times ≤210 seconds.
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Heart Rhythm. 2014 Jun 1
11 citations
Comparison of CHADS2 and CHA2DS2-VASC anticoagulation recommendations: evaluation in a cohort of atrial fibrillation ablation patients.
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Europace. 2014 Feb 1
37 citations
Discontinuing anticoagulation following successful atrial fibrillation ablation in patients with prior strokes
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Journal of Interventional Cardiac Electrophysiology. 2013 Oct 8
38 citations
Physician-controlled costs: the choice of equipment used for atrial fibrillation ablation
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Journal of Interventional Cardiac Electrophysiology. 2013 Mar 14
5 citations
Safety of dabigatran versus warfarin for periprocedural anticoagulation in patients undergoing ablation for atrial fibrillation.
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Journal of the American College of Cardiology. 2012 Sep 18
15 citations
Atrial Arrhythmia Burden on Long-Term Monitoring in Asymptomatic Patients Late After Atrial Fibrillation Ablation
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;The American Journal of Cardiology. 2012 Sep 15
21 citations
Prior antiarrhythmic drug use and the outcome of atrial fibrillation ablation
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Europace. 2012 May 1
106 citations
The Use of Dabigatran Immediately After Atrial Fibrillation Ablation
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Journal of Cardiovascular Electrophysiology. 2012 Mar 1
24 citations
Trends in atrial fibrillation ablation: have we maximized the current paradigms?
Roger A. Winkle, R. Hardwin Mead, Gregory Engel, Melissa H. Kong, Rob A. Patrawala> ;Journal of Interventional Cardiac Electrophysiology. 2012 Feb 28
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