Omar Toubat, MD, PhD

About Dr. Toubat

Omar is a PGY2 resident in the Integrated Cardiac Surgery Program. He received his bachelor’s degree in Biological Sciences from the University of Southern California (USC) as part of the Baccalaureate/MD Program. Prior to medical school, Omar completed a year of translational research studying the developmental genetics of congenital heart disease in the lab of Dr. Richard W. Kim, MD, FACS at Children’s Hospital Los Angeles. He then pursued formal clinical and scientific training in the USC-Caltech Combined MD/PhD Program, completing his graduate work in the lab of Dr. Ram Kumar Subramanyan, MD, PhD, FACS. He plans to pursue a career in academic cardiac surgery.

Education

2014 - 2023
MD - Keck School of Medicine of the University of Southern California

2017 - 2021
PhD - Keck School of Medicine of the University of Southern California

2010 - 2013
BA - University of Southern California

Societies

2023
Pennsylvania Medical Society

2023
Alpha Omega Alpha National Medical Honor Society (AOA)

2023
Gold Humanism National Medical Honor Society (GHHS)

2019
Graduate Student Member, American Heart Association (AHA)

2019
Medical Student Member, Association for Academic Surgery (AAS)

2018
Medical Student Member, American College of Surgeons (ACS)

2016
Pre-Candidate Member, The Society of Thoracic Surgeons (STS)

2014
American Physician Scientists Association (APSA)

Awards/Honors

2023
Alpha Omega Alpha
Keck School of Medicine of USC Gamma Chapter of Alpha Omega Alpha

2023
Gold Humanism National Honor Society Award
Keck School of Medicine of USC Chapter of the Gold Humanism Honor Society

2023
Distinction in Community Service
Keck School of Medicine of USC

2023
Graduation with Academic Distinction Award
Keck School of Medicine of USC

2022
Achievement Rewards for College Scientists (ARCS) Scholar Award
ARCS Foundation

2022
Norman E. Shumway Award
The Western Thoracic Surgical Association

2022
Stanford Clinical Opportunity for Residency Experience (SCORE) Program Scholarship Award
Stanford University School of Medicine

2022
Member for a Day Scholarship Award
The American Association for Thoracic Surgery

2021
Achievement Rewards for College Scientists (ARCS) Scholar Award
ARCS Foundation

2020
Achievement Rewards for College Scientists (ARCS) Scholar Award
ARCS Foundation

2020
Civic Engagement Initiative Grant Award
Research! America Foundation

2020
“Deck Our Halls” Research Competition Award
University of Southern California Graduate School

2020
SC CTSI Voucher Program Grant Award
The National Center for Advancing Translational Sciences of the National Institutes of Health

2020
MD/PhD F30 Predoctoral Fellowship Grant Award
The National Heart, Lung, and Blood Institute of the National Institutes of Health

2018
Local Chapter Travel Scholarship Award
The American Physician Scientists Association

2017
R13 Conference Grant Award
The National Institute of General Medical Sciences of the National Institutes of Health

2016
Most Meritorious Poster Award for Medical Student Research
Keck School of Medicine of USC

2016
Looking to the Future Scholarship Award
The Society of Thoracic Surgeons

2015
Dr. Rodolfo Montes Memorial Scholarship Award
University of Southern California Graduate School

2015
Biomedical Research Essay Award
The Albert and Mary Lasker Foundation

2015
The Saban Scholar Summer Research Fellowship Award
Children’s Hospital Los Angeles

2013
Cum Laude, University of Southern California

2010
Academic Dean’s List, University of Southern California

2010
Baccalaureate/M.D. Scholarship Award
University of Southern California

2010
Baccalaureate/M.D. Program
University of Southern California and the Keck School of Medicine of USC

2010
Athletic Hall of Fame Award
Walnut High School

2010
Academic Hall of Fame Award
Walnut High School

2010
Male Athlete of the Year, Men’s Soccer
All-California Interscholastic Federation (CIF)
Walnut High School

2010
Scholar-Athlete Award, Men’s Soccer
All-California Interscholastic Federation (CIF)
Walnut High School

2010
Advanced Placement (AP) Scholar Award
Walnut High School

2010
International Baccalaureate (IB) Diploma Award
Walnut High School

2010
Valedictorian, Class of 2010
Walnut High School

Research

Omar’s career goal is to become an academic cardiac surgeon-scientist. During medical school, he completed a PhD in Development, Stem Cells, and Regenerative Medicine. Under the guidance of Dr. Ram Kumar Subramanyan, MD, PhD, FACS, his previous research aimed to (1) understand the genetic and molecular mechanisms that give rise to congenital heart disease and associated developmental abnormalities, and (2) leverage these developmental insights to improve clinical outcomes in the pediatric and adult congenital population. In addition to these translational research efforts, Omar has been extensively involved in clinical outcomes research on various topics across the spectrum of cardiothoracic surgery. To date, his research has led to over 80 scientific abstracts, presentations, and peer-reviewed manuscripts. His work has been funded by multiple agencies, including the Children’s Hospital of Los Angeles/Keck School of Medicine of USC, the Achievement Rewards for College Scientists (ARCS) Foundation, the National Institutes of General Medical Sciences, the National Heart, Lung, and Blood Institute, and the National Center for Advancing Translational Sciences of the National Institutes of Health. 

Publications

Peer-Reviewed Manuscripts

1. Krainock MR, Toubat O, Danopoulos S, Beckham A, Warburton D, Kim RW. Epicardial Epithelial-to-Mesenchymal Transition in Heart Development and Disease. J. Clin. Med. 2016.
2. Danopolous S, Krainock MR, Toubat O, Thornton M, Grubbs B, Al-Alam D. Rac1 Modulates Mammalian Lung Branching Morphogenesis In Part Through Canonical Wnt Signaling. Am. J. Physiol. Lung Cell. Mol. Physiol. 2016.
3. Su JA, Kumar SR, Mahmoud H, Bowdish ME, Toubat O, Wood J, Kung G. Post-Operative Serum Troponin Trends in Infants Undergoing Cardiac Surgery. Semin. Thorac. Cardiovasc. Surg. 2019.
4. Yao MJ, Ding L, Atay SM, Toubat O, Ebner PJ, David EA, McFadden PM, Kim AW. A modern reaffirmation of surgery as the optimal treatment for solitary fibrous tumors of the pleura. Ann. Thorac. Surg. 2019.
5. Toubat O, Farias AJ, Atay SM, McFadden PM, Kim AW, David EA. Disparities in the Surgical Management of Early Stage Non-Small Cell Lung Cancer: How Far Have We Come? J. Thorac. Dis. 2019.
6. Hu AC, Hong EM, Toubat O, Moy W, Krasieva T, Wong BJF. Multiphoton microscopy of collagen structure in ex vivo human skin following electrochemical therapy. Lasers Surg. Medicine. 2020.
7. Ebner PJ, Ding L, Atay SM, David EA, Yao MJ, Toubat O, McFadden PM, Balekian AA, Kim AW. The Effect of Socioeconomic Status on Treatment and Mortality in Patients with Non-Small Lung Cancer. Ann. Thorac. Surg. 2020.
8. Toubat O, Atay SM, Kim AW, Ding L, Farias AJ, Ebner PJ, McFadden PM, David EA. Disparities in Guideline Concordant Treatment for Pathologic N1 Non-Small Cell Lung Cancer. Ann. Thorac. Surg. 2020.
9. Kwan JM, Toubat O, Harrison AM, Riddle M, Wu B, Kim H, Basta DW, Adami AJ, Daye D. A Nationwide Assessment of Perceptions of Research-Intense Academic Careers Among Predoctoral MD and MD-PhD Trainees. J. Clin. Transl. Sci. 2020.
10. Toubat O, Kumar SR. Molecular Approaches in Single Ventricle Management. Semin. Thorac. Cardiovasc. Surg. Pediatr. Card. Surg. Annu. 2020.
11. Zhao J, Samaan JS, Toubat O, Samakar K. Laparoscopy as a Diagnostic and Therapeutic Modality for Chronic Abdominal Pain of Unknown Etiology: A Literature Review. J. Surg. Res. 2020.
12. Samaan JS, Mohan S, Toubat O, Qian E, Lee N, Subramanyam C, Alicuben ET, Dobrowolsky A, Sandhu K, Samakar K. Effects of Smoking on Bariatric Surgery Postoperative Weight Loss and Patient Satisfaction. Surg. Endosc. 2020.
13. De Zoysa P, Liu J, Toubat O, Choi J, Moon A, Gill PS, Duarte A, Sucov HM, Kumar SR. Delta-Like Ligand-4 Mediated Notch Signaling Controls Proliferation of Second Heart Field Progenitor Cells by Regulating Fgf8 Expression. Development. 2020.
14. Toubat O, Mallios DN, Munabi NCO, Magee WP, Starnes VA, Kumar SR. Clinical Importance of Concomitant Cleft Lip/Palate in the Surgical Management of Patients with Congenital Heart Disease. World J. Pediatr. Congenit. Heart Surg. 2020.
15. Toubat O, Kim AW. Surgical Management of Stage IIIA Non-Small Cell Lung Cancer. Curr. Pulmonol. Rep. 2020.
16. Sibert A, Chou C, Toubat O, Adami A, Kim H, Daye D, Kwan JM. Factors Associated with Underrepresented Minority Physician Scientist Trainee Career Choices. BMC Med Educ. 2020.
17. Calco G*, Erickson H*, Toubat O*, Spellicy S*. MD/DO-PhD trainees: flexing, adapting, and progressing during COVID-19. J. Clin. Transl. Sci. 2020. *All authors contributed equally to this work and are listed alphabetically by last name.
18. Toubat O, David EA. A narrative review of lung cancer screening in underserved populations. Curr. Chall. Thorac. Surg. 2020.
19. De Zoysa P, Toubat O, Harvey DC, Choi J, Kumar SR. Murine model of cardiac defects observed in Adams-Oliver Syndrome driven by Delta-like ligand-4 haploinsufficiency. Stem Cells Dev. 2021.
20. Samaan J, Zhao J, Qian E, Hernandez A, Toubat O, Alicuben ET, Malik Y, Sandhu K, Dobrowolsky A, Samakar K. Preoperative weight loss as a predictor of bariatric surgery postoperative weight loss and complications. J Gastrointest Surg. 2021.
21. Samaan JS, Abboud Y, Yuan L, Toubat O, Mirocha J, Qian E, Lee N, Subramanyam C, Samakar K. Racial disparities in bariatric surgery postoperative weight loss and patient selection. Am J Surg. 2021.
22. Synder A, Xiang D, Smith A, Esswein S, Toubat O, Capua JD, Kwan JM, Daye D. Gender disparities among medical students choosing to pursue careers in medical research: A secondary cross-sectional cohort analysis. BMC Med Educ. 2021.
23. Kwan JM, Noch E, Qiu Y, Toubat O, Christophers B, Azzopardi S, Gilmer G, Wiedmeier JE, Daye D. The impact of COVID-19 on physician-scientist trainees and faculty in the United States: a national survey. Acad Med. 2021.
24. Harvey DC, De Zoysa P, Toubat O, Choi J, Kishore J, Tsukamoto H, Kumar SR. Concomitant genetic defects potentiate the adverse impact of prenatal alcohol exposure on cardiac outflow tract maturation. Birth Def Res. 2021.
25. Toubat O, Choi J, Kumar SR. Modelling paracrine non-canonical Wnt signaling in vitro. JoVE. 2021.
26. Mulligan K, Berg AH, Eckstein M, Hori AM, Rodriguez A, Sobhani K, Toubat O, Sood N. SARS-CoV-2 seroprevalence among firefighters in Los Angeles, California. Occup Environ Med. 2021.
27. Samaan J, Toubat O, Alicuben ET, Dewberry S, Sandhu K, Dobrowolski A, Zehetner J, Lipham JC, Samakar K. Gastric electric stimulator versus gastrectomy for the treatment of medical refractory gastroparesis. Surg Endosc. 2022.
28. Munabi NCO, Mikhail S, Toubat O, Webb M, Auslander A, Sanchez-Laura PA, Manojlovic Z, Schmidt RJ, Craig DW, Magee WP, Kumar SR. High prevalence of deleterious mutations in concomitant non-syndromic cleft and outflow tract heart defects. Am. J. Med. Genet. 2022.
29. Toubat O, Berg AH, Sobhani K, Mulligan K, Hori AM, Bhattacharya J, Sood N. Manufacturer signal-to-cutoff threshold underestimates cumulative incidence of SARS-CoV-2 infection: insights from the Los Angeles Firefighters Study. JALM. 2022.
30. Samaan JS, Srinivasan N, Mirocha J, Premkumar A, Toubat O, Qian E, Subramanyam C, Malik Y, Sandhu K, Dobrowolsky A, Samakar K. Association of postoperative dieting, exercise, and follow up with bariatric surgery weight loss success, patient satisfaction, and improvement in quality of life. Am Surg. 2022.
31. De Zoysa P, Toubat O, Harvey DC, Liu J, Hong YK, Cavallero S, Sucov HM, Kumar SR. Delta-like ligand-4 regulates Notch mediated maturation of second heart field progenitor-derived pharyngeal arterial endothelial cells. J. Cell. Mol. Med. 2022.
32. Toubat O, Kim AW. Extended thromboembolism chemoprophylaxis for thoracic oncologic surgery: to discharge and beyond! J. Thorac. Cardiovasc. Surg. 2022.
33. Toubat O, Ding L, Ding K, Wightman SC, Atay SM, Harano T, Kim AW, David EA. Benefit of adjuvant chemotherapy for resected pN1 NSCLC is unrecognized: a subgroup analysis of the JBR10 trial. Semin. Thorac. Cardiovasc. Surg. 2022.
34. Toubat O, Wells WJ, Starnes VA, Kumar SR. Fate of the right ventricular outflow tract following valve-sparing repair of Tetralogy of Fallot. Semin. Thorac. Cardiovasc. Surg. 2022.
35. Toubat O, Shemanski KA, Wallace WD, Kim AW. Pericarditis linked to the development of an anterior mediastinal granuloma. Annals of Thoracic Surgery: Short Reports. 2023.
36. Yin V, Toubat O, Kim AW. Chapter 43: Meta-analysis: design, measures, classic example. Translational Cardiothoracic Surgery: Handbook for Designing and Conducting Clinical and Translational Research (Invited textbook chapter). 2023.
37. Treffalls JA, Aranda-Michel E, Toubat O, Jagadesh N, Han JJ, Roberts S, Bhagat R, Blitzer D, Louis C, Shah A. A Primer for Students Regarding Advanced Topics in Cardiothoracic Surgery: Part I. JTCVS Open. 2023.
38. Toubat O, Reddy S, Wallace WD, Kim AW. Biologic downstaging observed with a pulmonary collision tumor. Annals of Thoracic Surgery: Short Reports. 2023.
39. Aranda-Michel E, Toubat O, Brennan Z, Siki M, Paluri S, Duda M, Han JJ, Komlo C, Bhagat R, Blitzer D, Louis C, Pruitt E. A Primer for Students Regarding Advanced Topics in Cardiothoracic Surgery: Part II. JTCVS Open. 2023.
40. Abt BG, Elsayed RS, Bojko M, Baker CJ, Kazerouni K, Song A, Toubat O, Starnes VA, Kumar SR: Morbidity and Mortality in Adult Congenital Heart Surgery: Physiologic Component Augments Risk Prediction. Annals of Thoracic Surgery, 2023.

Published Abstracts

1. Krainock MR, Toubat O, Danopolous S, Keho K, Al-Alam D, Starnes VA, Kim RW. Histone 3 Lysine 4 Tri-methylation Is Necessary for Epicardial Epithelial-to-Mesenchymal Transformation. Circulation. 2015;132:A19018.
2. Su JA, Kumar SR, Mahmoud H, Toubat O, Wood J, Kung G. Post-Operative Serum Troponin Trends in Infants Undergoing Cardiac Surgery. J Am Coll Cardiol. 2015; 65(10S).
3. Al-Asady NA, Dhillon AS, Burton KR, Toubat O, Schwartzman WS, Doshi RN, Matthews RV, Clavijo LC. Left Atrial Appendage Occlusion for Atrial Fibrillation: Eligibility in a Typical Oral Anticoagulation Clinic. J Am Coll Cardiol Intv. 2017 Feb;10(3S):S75
4. Tariq AR, Mantha A, Toubat O. Impact of BMI on Clinical Outcomes and Readmissions after Aortic Valve Replacement, Surgical and Transcatheter, in the United States. European Heart Journal. 2018;39:913.
5. Tariq AR, Toubat O, Mantha A. The Impact of Utilizing Intravascular Ultrasound vs Optical Coherence Tomography During Percutaneous Coronary Intervention on Mortality, Costs, and Readmissions in the United States. European Heart Journal. 2018;39:848.
6. Samaan J, Chang ES, Toubat O, Lee N, Sandhu K, Dobrowolsky A, Samakar K. The Effect of Psychiatric Comorbidities in Patients Undergoing Bariatric Surgery. Surgery for Obesity and Related Diseases. 2019 Oct;15(S10):S162.
7. Samaan J, Chang ES, Toubat O, Pashyan Y, Dobrowolsky A, Sandhu K, Samakar K. Bariatric Surgery Weight Loss Success and Mental Health Symptomatic Improvement. Surgery for Obesity and Related Diseases. 2019 Oct;15(S10):S162-S163.
8. Samaan J, Toubat O, Qian E, Dobrowolsky A, Sandhu K, Samakar K. History of Abuse and Bariatric Surgery Outcomes. Surgery for Obesity and Related Diseases. 2019 Oct;15(S10):S163.
9. Toubat O, De Zoysa P, Choi J, Harvey D, Sucov HM, Kumar SR. Neural crest cell-derived Wnt5a regulates planar cell polarity in cranial second heart field progenitor cells. Circulation. 2020;142(S3):A12540.
10. Kwan J, Toubat O, Kim H, Daye D. A Nationwide Assessment of Factors Influencing Research and Academic Careers Among MD and MD-PhD Trainees Interested in Cardiology. J Am Coll Cardiol. 2020 Mar;75(11S):3512
11. Harvey DC, De Zoysa P, Toubat O, Kumar SR. Epigenetic Regulation of Notch Signaling by Prenatal Alcohol Exposure Impacts Cardiac Outflow Tract Defect Development. Circulation. 2021;144:A10425.
12. Toubat O, Munabi NCO, Craig DW, Magee WP, Kumar SR. Wnt/planar cell polarity mutations are overrepresented in children with concomitant congenital cardiac and cleft malformations. Circulation. 2021;144:A11001.

Oral and Podium Presentations

1. Toubat O. Bridging the Gap: How to Successfully Connect Physician Scientist Trainees Across Multiple Stages in a Single Conference Format. 14th Annual Meeting of the American Physician Scientists Association, Chicago, IL, April 20-22, 2018.
2. Toubat O. Signaling from Neural Crest Cells Regulates Second Heart Field Proliferation During Cardiac Outflow Tract Development. Stem Cell and Developmental Biology Research Seminar, Eli and Edythe Broad CIRM Center, Los Angeles, CA, December 7, 2018.
3. Toubat O, Atay SM, Kim AW, Ding L, Ebner PJ, McFadden PM, David EA. Identifying Patients at Risk of Not Receiving Guideline Concordant Treatment for Pathologic N1 Non-Small Cell Lung Cancer. The 55th Annual Meeting of the Society of Thoracic Surgeons, San Diego, CA, January 27-29, 2019.
4. Toubat O. Build It and They Will Come: Recruiting and Retaining Physician Scientist Trainees. 7th Annual Leadership Retreat of the American Physician Scientists Association, Atlanta, GA, July 13-14, 2019.
5. Samaan J, Toubat O, Hart N, Lee N, Samakar K. Association of Bariatric Surgery Success with Reported Postoperative Weight Loss Goals and History of Successful Diets. 24th International Federation for the Surgery of Obesity and Metabolic Disorders World Congress, Madrid, Spain, September 3-7, 2019.
6. Toubat O, Mallios DN, Magee WP, Starnes VA, Kumar SR. Impact of Concomitant Cleft Lip/Palate on Surgical Management of Congenital Heart Disease. The Annual Scientific Meeting of the Southern California Chapter of the American College of Surgeons, The American College of Surgeons, Santa Barbara, January 10-12, 2020.
7. Toubat O, Mallios DN, Magee WP, Starnes VA, Kumar SR. Impact of Concomitant Cleft Lip/Palate on Surgical Management of Congenital Heart Disease. The 15th Annual Academic Surgical Congress, The Association for Academic Surgery and the Society of University Surgeons, Orlando, FL, February 4-6, 2020.
8. Toubat O. Post-Migratory Cardiac Neural Crest Cells Regulate Second Heart Field Planar Cell Polarity and Outflow Tract Alignment. Stem Cell and Developmental Biology Research Seminar, Eli and Edythe Broad CIRM Center, Los Angeles, CA, May 15, 2020.
9. Toubat O, De Zoysa P, Choi J, Harvey D, Sucov HM, Kumar SR. Neural crest cell-derived Wnt5a regulates planar cell polarity in cranial second heart field progenitor cells. 2020 American Heart Association Annual Scientific Sessions, Dallas, TX, November 13-17, 2020.
10. Toubat O. The role of post-migratory neural crest cells in cardiac outflow tract morphogenesis: insights into the molecular basis of concomitant congenital cardiac and cleft malformations. Keck School of Medicine of USC Doctoral Dissertation Defense, Los Angeles, CA, May 3, 2021.
11. Fields D, Toubat O, Bagrodia N, Kazerouni K, Cohen RG, Bowdish ME. Association of Distressed Community Index in Acute Type A Aortic Dissection Repair. Berne Research Symposium, Department of Surgery, Keck School of Medicine of USC, Los Angeles, CA, April 1, 2022.
12. Fields D, Bagrodia N, Toubat O, Elsayed R, Bowdish M, Starnes VA, Fleischman F. The fate of the false lumen after repair of acute type A aortic dissection – is patency most important? The 102nd Annual Meeting of the American Association for Thoracic Surgery, Boston, MA, May 14-17, 2022.
13. Toubat O, Ding L, Ding K, Wightman SC, Atay SM, Harano T, Kim AW, David EA. Benefit of adjuvant chemotherapy for completely resected pN1 NSCLC is unrecognized: a subgroup analysis of the JBR10 trial. 49th Annual Meeting of the Western Thoracic Surgical Association, Koloa, HI, June 22-25, 2022.
14. Toubat O, Wells WJ, Starnes VA, Kumar SR. Is it time to relax criteria for valve-sparing repair of tetralogy without increasing re-intervention rates in the intermediate term? 49th Annual Meeting of the Western Thoracic Surgical Association, Koloa, HI, June 22-25, 2022.
15. Treffalls JA, Trager LE, Aranda-Michel E, Zogg CK, Moya-Mendez M, Toubat O, Hingtgen A, Han JJ, Cevasco M. Promoting the pipeline of academic surgeons in cardiothoracic surgery: a call to action. 60th Annual Meeting of the Eastern Cardiothoracic Surgical Society, Miami, Florida, October 6-9, 2022.
16. Toubat O. Understanding the molecular basis of concomitant congenital cardiac and cleft malformations: from bedside to bench and back again. 2023 Achievement Rewards for College Scientists (ARCS) Forward National Speaker Series: Congenital Heart Disease in Neonates, ARCS Foundation, February 16, 2023.
17. Bagrodia N*, Kazerouni K*, Fields D, Toubat O, Ding Li, Fleischman F. False lumen volume is superior to 2D measures in predicting outcomes following type A dissection repair in a preliminary dataset. Berne Research Symposium, Department of Surgery, Keck School of Medicine of USC, Los Angeles, CA, April 1, 2023. *Denotes co-first authorship listed alphabetically by last name.

Poster Presentations

1. Su JA, Kumar SR, Mahmoud H, Toubat O, Wood J, Kung G. Post-Operative Serum Troponin Trends in Infants Undergoing Cardiac Surgery. 64th Annual Scientific Session of the American College of Cardiology, San Diego, CA, March 14-16, 2015.
2. Boys JA, Azadgoli B, Alicuben ET, Toubat O, Yee JM, DeMeester SR. Does a Collis Gastroplasty Reduce Hiatal Hernia Recurrence after Laparoscopic Paraesophageal Hernia Repair? 15th Annual Meeting of the International Society for Minimally Invasive Cardiothoracic Surgery, Berlin, Germany, June 3-6, 2015.
3. Krainock MR, Toubat O, Danopolous S, Keho K, Al-Alam D, Starnes VA, Kim RW. Histone 3 Lysine 4 Tri-methylation Is Necessary for Epicardial Epithelial-to-Mesenchymal Transformation. 2015 American Heart Association Annual Scientific Sessions, Orlando, FL, November 7-11, 2015.
4. Toubat O, Kim RW. RNAseq implicates myocardial apelin in the development of ventricular dysfunction in Hypoplastic Left Heart Syndrome patients. 2016 Keck School of Medicine of USC Annual Medical Student Research Forum, Los Angeles, CA, April 5, 2016.
5. Al-Asady NA, Dhillon AS, Burton KR, Toubat O, Schwartzman WS, Doshi RN, Matthews RV, Clavijo LC. Left Atrial Appendage Occlusion for Atrial Fibrillation: Eligibility in a Typical Oral Anticoagulation Clinic. 20th Annual Cardiovascular Research Technologies Conference, Washington, DC, February 18-21, 2017.
6. Mantha A, Toubat O, Juo Y, Morchi R, Ziaeian B, Milliken JC, Shemin RJ, Benharash P. Disparities in Cost and 30-Day Readmission After Robot-Assisted vs. Conventional Mitral Valve Repair. 2017 American Association for Thoracic Surgery Mitral Conclave, New York, NY, April 27-28, 2017.
7. Mantha A, Toubat O, Tariq A. Impact of Concomitant PCI on Clinical Outcomes and Readmissions After Transfemoral Aortic Valve Replacement From 2011-2014. The Society for Cardiovascular Angiography and Interventions 2018 Scientific Sessions, San Diego, CA, April 25-28, 2018.
8. Tariq AR, Mantha A, Toubat O. Impact of BMI on Clinical Outcomes and Readmissions after Aortic Valve Replacement, Surgical and Transcatheter, in the United States. European Society of Cardiology Congress 2018, Munich, Germany, August 25-29, 2018.
9. Tariq AR, Toubat O, Mantha A. The Impact of Utilizing Intravascular Ultrasound vs Optical Coherence Tomography During Percutaneous Coronary Intervention on Mortality, Costs, and Readmissions in the United States. European Society of Cardiology Congress 2018, Munich, Germany, August 25-29, 2018.
10. Toubat O, Wu F. Dr. C Walton Lillehei: At the Heart of a Cardiac Surgeon, Scientist, and Educator. American College of Surgeons’ 2018 Clinical Congress, Boston, MA, October 21-25, 2018.
11. Ebner PJ, Ding L, Atay SM, David EA, Yao MJ, Toubat O, McFadden PM, Balekian AA, Kim AW. The Effect of Socioeconomic Status on Treatment and Mortality in Patients with Non-Small Lung Cancer. The 55th Annual Meeting of the Society of Thoracic Surgeons, San Diego, CA, January 27-29, 2019.
12. Toubat O, Alicuben ET, Samakar K, Katkhouda N, Houghton CC, Lipham JC, Sandhu K, Dobrowolsky A, Bildzukewicz NA. An Assessment of Bio-Absorbable Mesh In High-Risk Patients Undergoing Complex Abdominal Wall Reconstruction. Society of American Gastrointestinal and Endoscopic Surgeons 2019 Annual Meeting, Baltimore, MD, April 3-6, 2019.
13. De Zoysa P, Liu J, Toubat O, Moon A, Gill PS, Duarte A, Sucov HM, Kumar SR. Delta-Like Ligand-4 Mediated Notch Signaling Controls Proliferation of Second Heart Field Progenitor Cells by Regulating Fgf8 Expression. Weinstein 2019 Cardiovascular Development Conference, Indianapolis, IN, May 9-11, 2019.
14. Mantha A, Toubat O, Ashtiani A, Alomari I. Impact of Intravascular Ultrasound Versus Optical Coherence Tomography on Clinical Outcomes and Readmissions After Percutaneous Intervention of Chronic Total Occlusion. The Society for Cardiovascular Angiography and Interventions 2019 Scientific Sessions, Las Vegas, NV, May 19-22, 2019.
15. Kwan JM, Toubat O, Kim H, Daye D. A Nationwide Assessment of Factors Influencing Research and Academic Careers Among MD and MD-PhD Trainees Interested in Cardiology. American College of Cardiology’s 69th Annual Scientific Session and the World Congress of Cardiology, Chicago, IL, March 28-30, 2020.
16. Toubat O, De Zoysa P, Choi J, Harvey D, Sucov HM, Kumar SR. Neural crest cell-derived Wnt5a regulates planar cell polarity in cranial second heart field progenitor cells. 2020 American Heart Association Annual Scientific Sessions, Dallas, TX, November 13-17, 2020.
17. Mantha A, Toubat O, Liu G, DePasquale E. Is there a “weekend” effect in cardiac transplantation? Insights from a nationally representative sample. 2021 American College of Cardiology’s 70th Annual Scientific Session and the World Congress of Cardiology, Chicago, IL, March 15-17, 2021.
18. Harvey D, De Zoysa P, Toubat O, Kumar SR. Epigenetic regulation of Notch signaling by prenatal alcohol exposure impacts cardiac outflow tract defect development. 2021 American Heart Association Annual Scientific Sessions, Boston, MA, November 13-15, 2021.
19. Toubat O, Munabi NCO, Craig DW, Magee WP, Kumar SR. Wnt/planar cell polarity mutations are overrepresented in children with concomitant congenital cardiac and cleft malformations. 2021 American Heart Association Annual Scientific Sessions, Boston, MA, November 13-15, 2021.
20. Toubat O, Choi J, De Zoysa P, Harvey D, Wang J, Sucov HR, Xu J, Kumar SR. The role of Wnt/planar cell polarity signaling in the development of concomitant cleft and outflow tract heart defects. 2022 Achievement Rewards for College Scientists (ARCS) Foundation Scholarship Symposium, Los Angeles, CA, April 8, 2022.
21. Toubat O, Choi J, De Zoysa P, Harvey D, Sucov HR, Wang J, Kumar SR. Neural crest cell-derived Wnt5a regulates second heart field planar cell polarity during cardiac outflow tract development. 2022 Weinstein Cardiovascular Development and Regeneration Conference, Marseilles, France, May 12-14, 2022.
22. Toubat O, Choi J, De Zoysa P, Verma R, Harvey D, Sucov HR, Kumar SR. Histone modifying enzyme protein arginine methyltransferase-1 is a novel epigenetic regulator of Wnt5a expression in cardiac neural crest cells during outflow tract development. 2022 Weinstein Cardiovascular Development and Regeneration Conference, Marseilles, France, May 12-14, 2022.
23. Toubat O, Choi J, De Zoysa P, Harvey D, Sucov HR, Wang J, Kumar SR. Neural crest cell-derived Wnt5a preferentially regulates the formation of the pulmonary trunk during murine outflow tract morphogenesis. 2023 Weinstein Cardiovascular Development and Regeneration Conference, San Diego, California, May 4-6, 2023.
24. Toubat O, Choi J, De Zoysa P, Verma R, Harvey D, Xu J, Lien CL, Sucov HR, Kumar SR. Neural crest cell deletion of histone modifying enzyme protein arginine methyltransferase-1 provides a clinically relevant model of concomitant outflow tract and cleft malformations in the mouse. 2023 Weinstein Cardiovascular Development and Regeneration Conference, San Diego, California, May 4-6, 2023.
25. Toubat O, Choi J, Kumar SR. Modeling functional and molecular mechanisms of paracrine non-canonical Wnt signaling in vitro. 2023 Weinstein Cardiovascular Development and Regeneration Conference, San Diego, California, May 4-6, 2023.

Non-Print Materials

1. Toubat O. Mastering the Genetic Reprogramming of Cells. 2015 Lasker Medical Research Essay Contest. The Albert and Mary Lasker Foundation. July 2015.
2. Toubat O. The role of post-migratory neural crest cells in cardiac outflow tract morphogenesis: insights into the molecular basis of concomitant congenital cardiac and cleft malformations. Doctoral Dissertation. Keck School of Medicine of USC. August 2021;1-186.