Dr. Fitzpatrick is currently a fellow in cardiac surgery. After completing a two year research fellowship in the lab of Y. Joseph Woo. His research interests focus on the treatment of heart failure with mechanical circulatory assistance and angiogenic and regenerative strategies.

Posdoctoral Researcher
University of Pennsylvania School of Medicine Division of Cardiovascular Surgery

• American College of Surgeons
• International Society for Heart and Lung Transplantation
• Alpha Omega Alpha

1. Fitzpatrick JR, Frederick JR, Hsu VM, Kozin ED, O'Hara ML, Howell E, Dougherty D, McCormick RC, Laporte, CM, Cohen JE, Southerland KW, Howard, JL, Jessup ML, Morris RJ, Acker MA, Woo YJ. A risk score derived from preoperative data analysis predicts the need for biventricular mechanical circulatory support. J Heart Lung Transplant 2008;27:1286-92.
2. Fitzpatrick JR, Frederick JR, Hiesinger W, Hsu VM, McCormick RC, Kozin ED, Laporte CM, O’Hara ML, Howell E, Dougherty D, Cohen JE, Southerland KW, Howard JL, Paulson EC, Acker MA, Morris RJ, Woo YJ. Early planned institution of biventricular mechanical circulatory support results in improved outcomes compared with delayed conversion of a left ventricular assist device to a biventricular assist device. J Thorac Cardiovasc Surg 2009;137(4):971-7.
3. Fitzpatrick JR, Frederick JR, McCormick RC, Harris DA, Kim A, Muenzer JR, Gambogi AJ, Liu JP, Paulson EC, Woo YJ. Tissue engineered pro-angiogenic fibroblast scaffold improves myocardial perfusion and function and limits ventricular remodeling following infarction. J Thorac Cardiovasc Surg 2010 (Accepted, In press).
4. Frederick JR, Fitzpatrick JR, McCormick RC, Harris DA, Kim AY, Muenzer JR, Marotta N, Smith MJ, Cohen JE, Hiesinger W, Atluri P, Woo YJ. Stromal Cell-Derived Factor-1a Activation of Tissue Engineered Endothelial Progenitor Cell Matrix Enhances Ventricular Function after Myocardial Infarction by Inducing Neovasculogenesis. Circulation 2010 (Accepted, In press).

1. Fitzpatrick JR, Frederick JR, Hsu VM, Kozin ED, O'Hara ML, Howell E, McCormick RC, Laporte CM, Cohen JE, Southerland KA, Howard JL, Jessup ML, Morris RJ, Acker MA, Woo YJ. Preoperative parameters at the time of left ventricular assist device placement predict the need for biventricular mechanical support. Presented at the 28th Annual Meeting of the International Society for Heart and Lung Transplantation. April 10, 2008. JHLT 2008; 27 2S: S93-S94.
2. Fitzpatrick JR, Frederick JR, Hiesinger W, McCormick RC, Hsu VM, Kozin ED, O’Hara ML, Howell E, Cohen JE, Southerland KW, Howard JL, Nacke EA, LaPorte CM, Jessup ML, Morris RJ, Acker MA, Woo YJ. Critical Preoperative Data Predict the Need for Concurrent LVAD and RVAD Implantation, Avoiding Poor Outcomes Associated with Delayed Conversion of LVAD to BiVAD. Presented at the 34th Annual Meeting of the Western Thoracic Surgical Association. June 25-28, 2008.
3. Frederick JR, Southerland K , Fitzpatrick JR, McCormick RC, Blumenthal N, Szeto W, Pochettino A, Woo YJ. Impact of Bilateral Lung Transplantation and Cardiopulmonary Bypass on Survival in Patients with Idiopathic Pulmonary Fibrosis. Presented at the American College of Surgeons 94th Annual Clinical Congress. October 12-16, 2008.
4. Cohen JE, Atluri P, Harris DA, McCormick R, Kim A, Frederick JR, Fitzpatrick JR, Hiesinger W, Laporte CM, Smith MJ, Hsu VM, Patel AB, Woo YJ. Cripto Stimulates Myocardial Proliferation and Enhances Ventricular Function in Ischemic Cardiomyopathy. Presented at the American Heart Association Scientific Sessions. October 9-12, 2008.
5. Southerland KW, Frederick JR, Fitzpatrick JR, McCormick RC, Howard JL, Blumenthal N, Szeto WY, Pochettino A, Woo YJ. Preoperative FEV1 as an Indicator for the Use of Cardiopulmonary Bypass in Bilateral Lung Transplantation for Chronic Obstructive Pulmonary Disease. Presented at the 4th Annual Academic Surgical Congress. February 3-6, 2009.
6. Fitzpatrick JR, Frederick JR, McCormick RC, Harris DA, Kim A, Smith MJ, Laporte CM, Muenzer JR, Gambogi AJ, Woo YJ. Tissue Engineered Pro-Angiogenic Fibroblast Matrix Improves Myocardial Perfusion and Function and Limits Ventricular Remodeling following Infarction. Presented in the C. Walton Lillehei Resident Forum at the 89th Annual Meeting of the American Association for Thoracic Surgery. May 10, 2009.
7. Frederick JR, Fitzpatrick JR, McCormick RC, Harris DA, Kim A, Smith MJ, Laporte CM, Muenzer JR, Gambogi AJ, Woo YJ. Extracellular Matrix Scaffold Restores Ventricular Function by Attenuating Adverse Ventricular Remodeling after Myocardial Infarction. Presented at the American College of Cardiology 58th Annual Scientific Session, March 29-31, 2009.
8. Frederick JR, Fitzpatrick JR, McCormick RC, Harris DA, Kim AY, Muenzer JR, Smith MJ, Cohen JE, Atluri P, Woo YJ. Tissue Engineered Endothelial Progenitor Cell Construct Promotes Neovasculogenesis, Enhances Perfusion, and Improves Ventricular Function after Myocardial Infarction. To be presented at the American College of Surgeons 95th Annual Clinical Congress. October 11-15, 2009.
9. Frederick JR, Fitzpatrick JR, McCormick, RC, Harris DA, Kim AY, Muenzer JR, Murthy A, Hsiao PF, Prystowsky AD, Smith MJ, Cohen JE, Atluri P, Woo YJ. Stromal Cell-Derived Factor-1a Activation of Tissue Engineered Endothelial Progenitor Stem Cell Matrix Enhances Ventricular Function after Myocardial Infarction by Inducing Neovasculogenesis. Presented in the Vivien Thomas Young Investigator Competition, American Heart Association Scientific Sessions 2009. November 14-18, 2009.
10. Atluri P, Howard JL, Kozin ED, Ullery BW, Hiesinger W, Fitzpatrick JR, Jessup M, Acker MA, Morris RJ, Woo YJ. Ventricular Assist Devices Rescue Patients in Cardiogenic Shock without Adversely Impacting the Complexity of Subsequent Heart Transplantation. Presented at the International Society for Heart and Lung Transplantation 30th Annual Meeting and Scientific Sessions, April 21, 2010.
11. Hiesinger W, Frederick JR, Fitzpatrick JR, Atluri P, Levit RD, McCormick RC, Marotta NA, Muenzer JR, Kim AY, Woo YJ. Spliced SDF-1 Analog Stimulates Endothelial Progenitor Cell Migration and Improves Cardiac Function In a Dose-Dependent Manner Following Myocardial Infarction. Presented at the 36th Annual Meeting of the Western Thoracic Surgical Association, June 23-26, 2010.
12. Atluri P, Ullery BW, Howard JL, Hiesinger W, Fitzpatrick JR, Jessup M, Acker MA, Morris RJ, Woo YJ. Rapid Onset Of Fulminant Myocarditis Portends A Favorable Prognosis And Ability To Bridge Mechanical Support To Recovery. To be presented at the 14th Annual Scientific Meeting of the Heart Failure Society of America, September 12, 2010.

1. Fitzpatrick JR, Fairman RM. Vascular Disease and Vascular Surgery. The Surgical Review, Third Edition. P. Porrett, J. Frederick, R. Roses, L. Kaiser, Eds., 2009, Chapter 20, p289-300.