• Research Faculty

  • A photo of Jeffrey Anderson.

    Jeffrey B. Anderson, MD, MPH

    is an electrophysiologist with a clinical interest in heart rhythm abnormalities and syncope in pediatric patients. His has a research interest in quality improvement and outcomes in infants and children with congenital heart disease. He is currently working on projects to improve medical management of pediatric patients presenting with syncope as well as to improve nutrition and growth in infants with complex congenital heart disease.


    A photo of Robert Beekman III.

    Robert H. Beekman III, MD

    is a recognized leader in pediatric cardiology and interventional cardiology. He’s currently researching participation in multicenter trials of stent therapy for coarctation (COAST), covered stents for coarctation and aortic aneurysms, and the C3PO Registry. Dr. Beekman is also chair of the JCCHD National Pediatric Cardiology Quality Improvement Collaborative (NPC-QIC) and a member of the Steering Committee of the ACC/NCDR IMPACT Registry.


    A photo of Burns Blaxall.

    Burns C. Blaxall, PhD, FAHA Director of Translational Science, Heart Institute

    is interested in understanding the molecular mechanisms associated with the development and progression of heart failure. We are particularly interested in developing novel heart failure therapeutics targeting myocardial function and fibrosis. To this end, we also seek to understand the pathologic role of cardiac myocyte and non-myocyte (i.e.. fibroblast) intercellular communication.


    A photo of Jonathan Byrnes.

    Jonathan W. Byrnes, MD Attending Cardiac Intensivist, Cardiac Intensive Care Unit

    is a cardiac intensivist who is active in clinical and translational research involving extracorporeal life support. This research is focused on the biocompatibility of the patient/device interface and the associated interaction of coagulation and inflammatory pathways. The aim of these endeavors is to decrease the incidence of end organ dysfunction and stroke associated with these therapies.


    A photo of James Cnota.

    James F. Cnota, MD

    is a pediatric cardiologist with clinical focus in echocardiography and fetal cardiology. His research activities are in two areas: 1) fetal cardiology and perinatal risk factors in congenital heart disease and 2) multicenter clinical trials in pediatric cardiovascular disease.


    A photo of David Cooper.

    David S. Cooper, MD, MPH Director, Cardiac Extracorporeal Life Support Program

    has clinical and research interests that relate to many aspects of cardiac intensive care, including fluid overload and acute kidney injury in critical illness; near infrared spectroscopy in the CVICU; early extubation after neonatal and infant congenital heart surgery; impact of gestational age on outcome; and analysis of morbidity/mortality in patients with congenital heart disease.


    A photo of Allison A. Divanovic.

    Allison A. Divanovic, MD Co-Director, Medical Student/Resident Education, Heart Institute

    is a pediatric cardiologist who specializes in noninvasive imaging, specifically transthoracic and fetal echocardiography. Her research interests include the impact of Twin-twin transfusion syndrome on the fetal heart as well as the management of fetuses with congenital heart defects, in particular, hypoplastic left heart syndrome.


    A photo of Stuart L. Goldstein.

    Stuart L. Goldstein, MD Director, Center for Acute Care Nephrology

    focuses on all aspects of acute kidney injury (AKI) spanning from translational work in AKI biomarker validation to long-term AKI epidemiology and outcomes. He is specifically interested in improving outcomes in the critically ill child with or at risk for AKI.


    A photo of Bryan Goldstein.

    Bryan H. Goldstein, MD

    is an interventional pediatric cardiologist with a clinical focus on minimally invasive and hybrid transcatheter therapies for complex congenital and structural heart disease. His research interests include novel transcatheter interventions (including fetal therapy), long-term outcomes following interventions for congenital heart disease, long-term functional outcomes following Fontan palliation for single ventricle physiology, and investigations of vascular function in repaired or palliated CHD patients.


    A photo of John Jefferies.

    John Lynn Jefferies, MD, MPH, FAAP, FACC Director, Advanced Heart Failure and Cardiomyopathy

    is a clinical cardiologist who has translational and clinical research programs. His research involves cardiomyopathy and cardiovascular genetics with specific interest in dystrophinopathies and aortopathies in children and adults. He also has clinical research projects investigating novel biomarkers of heart failure, chemotherapy induced cardiotoxicity, and the cardiorenal syndrome.


    A photo of Thomas Kimball.

    Thomas R. Kimball, MD Medical Director, Heart Institute

    is a clinical cardiologist who has clinical research interests in the impact of systemic diseases (including renal, pulmonary and hematologic) on cardiovascular structure and function. He has studied the impact of pediatric obesity on both cardiac and arterial anatomy and physiology and directs the Cardiovascular Imaging Core Research Laboratory which is active in using echocardiography to cardiac phenotype transgenic mice models.


    No photo available

    Shelley Kirk, PhD, RD, LD Director, HealthWorks!, Center for Better Health and Nutrition, Heart Institute

    is a clinical dietitian specializing in the assessment and treatment of obese youth and their families. With her doctorate in epidemiology, her research interests are focused on evaluating the effectiveness and efficacy of the dietary component as part of a comprehensive pediatric weight management intervention offered in a clinical setting.


    A photo of Timothy Knilans.

    Timothy K. Knilans, MD Director, Clinical Cardiac Electrophysiology and Pacing

    is a clinical cardiac electrophysiologist with a large clinical practice in management of arrhythmia and syncope. He has extensive experience in non-invasive electrocardiographic methods and invasive therapeutic modalities including catheter and surgical ablation and implanted electrical device therapy. His research interests center on evaluation and treatment of syncope and prevention of sudden cardiac death.


    A photo of Andreas Loepke.

    Andreas W. Loepke, MD, PhD Staff Anesthesiologist, Division of Cardiac Anesthesia

    is a pediatric cardiac anesthesiologist and clinician-scientist who directs a research laboratory investigating the effects of anesthetics on the developing brain. He chairs the department’s Data Safety Monitoring Board and serves on the Editorial Advisory Board for the journal Pediatric Anesthesia as well as the SmartTots Affiliate Advisory Council for the International Anesthesia Research Society.
    Visit the Loepke Lab.


    A photo of Erik Michelfelder.

    Erik C. Michelfelder, MD Co-Director, Cardiac Imaging Services, Heart Institute

    is a clinical cardiologist who has clinical research programs in fetal cardiology and echocardiography. Within the Fetal Heart Program, the fetal echocardiography lab studies anatomic and physiologic predictors of cardiac function, perinatal physiology, and clinical outcomes in fetuses with both structural and function cardiovascular abnormalities. General echocardiographic research conducted by Dr. Michelfelder also included echocardiographic assessment of cardiac systolic and diastolic function in infants, children, and young adults with a variety of structural and function cardiac abnormalities.


    A photo of Robert Siegel.

    Robert M. Siegel, MD, FAAP Medical Director, Center for Better Health and Nutrition

    is a general pediatrician whose clinical work is focused on pediatric weight management. His research interests are dietary interventions in overweight children, exercise in obese children and training community practitioners in obesity prevention and obesity treatment.


    A photo of James Spaeth.

    James P. Spaeth, MD Director, Cardiac Anesthesia

    is a pediatric cardiac anesthesiologist and the Director of Cardiac Anesthesia. His clinical research interests include the effect of congenital cardiac disease and cardiac surgery on neurodevelopmental outcomes, and the use of cerebral monitoring during the perioperative period. He is also involved in Quality Improvement work focused on improving the safety of pediatric anesthesia.


    A photo of Michael Taylor.

    Michael D. Taylor, MD Director, Advanced Imaging Innovation

    is a non-invasive cardiologist interested in applications of imaging to problems of congenital and acquired heart disease. His primary research interest is cardiac MRI and its application in evaluating myocardial function and disease. He has a translational program that uses multi-modality imaging to characterize mouse models of inherited and acquired cardiomyopathies.


    A photo of Elaine Urbina.

    Elaine M. Urbina, MD, MS Director, Preventive Cardiology

    is a pediatric preventive cardiologist who is interested in how CV risk factors affect vascular function. Her lab uses a variety of non-invasive techniques to measure how vascular structure (carotid intima-media thickness), arterial stiffness (pulse wave velocity) and endothelial function (brachial flow mediated dilation) are affected by a variety of pediatric diseases. 


    A photo of Gruschen R. Veldtman.

    Gruschen R. Veldtman, FRCP, MBChB Director of Inpatient ACHD Services, Heart Institute

    is a clinician scientist who conducts research in the areas of single ventricle and Fontan physiology and pathophysiology; Eisenmenger syndrome and arrhythmia; contractile reserve in tetralogy of Fallot; and hepatopathy in the Fontan circulation and heart failure.


    A photo of Ivan Wilmot.

    Ivan Wilmot, MD Heart Failure, Transplant, VAD Physician

    focuses on care of children with advanced heart failure requiring mechanical circulatory support bridge to transplant; quality of life in children with heart failure, transplant, and mechanical circulatory support (MCS); and advanced strain imaging in evaluation of ventricular function in pediatric heart transplant patients.