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Surgery Research News

Dr. Wampler to Attend ACS Leadership and Advocacy Summit (2019-01-24)

Dr. Nicholson Co-Moderates Microbiome Session at ACS Clinical Congress (2018-10-24)

Congratulations to J. Bradley Aust Surgical Society Resident Papers Competition Winners! (2018-06-18)

More research news...


Recent publications

Hernandez MC, Finnesgard EJ, Aho JM, Jenkins DH, Zielinski MD. Association of post-operative organ space infection after intraoperative irrigation in appendicitis. J Trauma Acute Care Surg. 2018 Apr;84(4):628-635. PMID: 29271870 View the abstract

Johnson M, Alarhayem A, Convertino V, Carter R 3rd, Chung K, Stewart R, Myers J, Dent D, Liao L, Cestero R, Nicholson S, Muir M, Schwacha M, Wampler D, DeRosa M, Eastridge B. Compensatory Reserve Index: Performance of a novel monitoring technology to identify the bleeding trauma patient. Shock. 2018 Mar;49(3):295-300. PMID: 28767544 View the abstract

Yamamoto R, Clanton D, Willis RE, Jonas RB, Cestero RF. Rapid decay of transthoracic echocardiography skills at 1 month: A prospective observational study. J Surg Educ. 2018 Mar - Apr;75(2):503-509. PMID: 28736288 View the abstract

More publications...

Trauma Immunopathology Lab 2015 Research Residents 2014 Research Residents 2013 Research Residents 2009 Research Residents Trauma Immunopathology Lab 2010 Research Residents Trauma Immunopathology Lab 2011 Research Residents 2012 Research Residents 2013 Research Residents




Surgery Research - Faculty

Click here for Cross-Appointed Faculty



Photo Martin G. Schwacha, PhD
Professor, Trauma Research
UT School of Medicine San Antonio

Email: schwacha@uthscsa.edu
Full Biosketch


Dr. Schwacha joins us from the University of Alabama at Birmingham, where he had been an Associate Professor in the Departments of Surgery, Pathology and Microbiology. He received his PhD from Albany Medical College, Albany NY in 1992 and completed postdoctoral studies at the Gamble Institute, Cincinnati, OH and Temple University, Philadelphia, PA prior to joining the Surgery faculty at Brown University, Providence, RI in 1997. Dr. Schwacha's research has been presented at numerous scientific meetings and as an invited speaker and visiting professor. He has served on a number of NIH special emphasis panels and as a science/research advisor for other professional organizations. He is a member of the editorial board of the International Journal of Clinical and Experimental Medicine as well as an ad hoc reviewer for numerous other professional journals. His research is funded by the National Institutes of Health and the Department of Defense.


Photo Susannah E. Nicholson, MD, MS
Assistant Professor / Research, Div. of Trauma and Emergency Surgery
UT School of Medicine San Antonio

Email: nicholsons@uthscsa.edu
Full Biosketch


Dr. Nicholson earned a B.S. in Biology with Distinction at Duke University in 2000 where she graduated cum laude. She completed her medical degree at the University of Texas Health Science Center at San Antonio in 2005 and her General Surgery residency in 2013. During her residency, she also completed a research fellowship, earned a Master's degree in Clinical Investigation (UTHSCSA, 2009) and was awarded a NIH Loan Repayment Award for her research in the role of endogenous carbon monoxide and hemoperitoneum following trauma. She completed a fellowship in Surgical Critical Care at UTHSCSA in 2014 and is board certified in General Surgery. Dr. Nicholson's current research focuses on the role of the innate immune system and inflammation in trauma patients. She was awarded a Mentored Research Career Development Award in Clinical & Translational Science in 2014 for her research evaluating the relationship between inflammation and intracellular components released into the circulation following cellular injury called Damage-associated molecular proteins (DAMPs) and patient outcome. Additionally, she has research interests in the microbiome of critically ill and injured patients, trauma systems, geriatric trauma, and pediatric trauma.


Photo Paula K. Shireman, MD
Professor, Vascular Surgery and
Vice Dean for Research, Dielmann Chair in Surgery, UT School of Medicine San Antonio

Email: shireman@uthscsa.edu
Full Biosketch


Paula K. Shireman, MD, MS is an academic vascular surgeon and physician scientist in the School of Medicine at the University of Texas Health Science Center at San Antonio and the South Texas Veterans Health Care System where she is a tenured Professor in the Departments of Surgery and Microbiology & Immunology, holds the Dielmann Chair in Surgery and serves as the Scientific Advisor for Clinical Trials Xpress. She obtained her MD from Indiana University and MS in Clinical investigation at the University of Texas Health Science Center, San Antonio. Her research interests are in muscle regeneration, imaging modalities to study extremity injuries and outcomes of vascular trauma. Her health services research studies the long term outcomes of extremity vascular trauma in Active Service and Veterans of Operation Iraqi Freedom/Operation Enduring Freedom/Operation New Dawn as well as care transitions and health care system improvement. She is the Co-Principal Investigator of the Institutional Clinical Translational Science Award (CTSA) responsible for strategic partnership with our CTSA affiliated institutions, biostatistics, study design and biomedical informatics cores, and evaluation of all CTSA programs. She incorporated Lean Six Sigma methods into research administration to streamline processes and increase efficiency. Dr. Shireman has been active in the development of a centralized clinical trials office for the University of Texas System, Clinical Trials Xpress, which utilizes a centralized IRB, master clinical trial agreements and single, centrally-negotiated clinical trial budget and shared Medicare coverage analysis to improve efficiency and decrease the regulatory burden of clinical trials. She has extensive experience in team building, research and administration. Dr. Shireman has presented on two panels for the Institute of Medicine regarding sharing clinical trial data. Dr. Shireman’s research is primarily funded by the National Institutes of Health, Veterans Administration and Department of Defense.


Photo Ross E. Willis, PhD
Associate Professor
Director of Surgical Education
Director, Johnson Center for Surgical Innovation
Department of Surgery, UT School of Medicine San Antonio

Email: willisr@uthscsa.edu
Full Biosketch


Dr. Willis holds a master's degree in human factors psychology and a doctoral degree in cognitive psychology from Texas Tech University. Dr. Willis's primary roles are curriculum development and evaluation and conducting research on applying principles of learning theory to the world of surgical education.


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Cross-appointed Surgery Research Faculty


Photo Ken M. Hargreaves, DDS, PhD
Professor and Chair of Endodontics
Professor of Pharmacology and Physiology

Email: hargreaves@uthscsa.edu
Website: Dept of Pharmacology
Phone: 210-567-3381


Research: Dr. Hargreaves' primary research interests are in the pharmacology of pain and inflammation. A major focus is on pharmacological regulation of unmyelinated "C" fiber nociceptors, as well as their plasticity in response to inflammation or nerve injury. Investigations are in progress evaluating the effects of cannabinoids, opioids, adrenergics, NPY, sex steroids and other drugs on regulating the activity of these fibers. In addition, his lab is working to identify major classes of inflammatory mediators and associated receptor/signal transduction systems which mediate activation, sensitization and phenotypic plasticity of these primary afferent fibers in response to tissue inflammation. Responses are measured using isolated superfused tissue, primary trigeminal cultures, microdialysis probes implanted in situ, RIA, EIA, real time PCR, Affymetrex analyses, IHC, ISH, confocal microscopy, behavior, etc.


Photo Joel Michalek, PhD
Professor, Center for Epidemiology and Statisstics

Email: michalekj@uthscsa.edu
Website: Department of Epidemiology & Biostatistics
Phone: 210-567-0886 | Fax: 210-567-0921


Research: Dr. Michalek has 30 years experience in the analysis and reporting of clinical and epidemiological studies and 20 years experience as a consultant to the pharmaceutical industry. He has published papers in statistical methodology, clinical trials, and epidemiology, and his current interests include methods to analyze survival and count data in cross-over studies.


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