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Rachel Leon, M.D.,  Ph.D.

Rachel Leon, M.D., Ph.D.

Titles and Appointments

Associate Director, Neurologic Neonatal Intensive Care Unit (NeuroNICU) Program

Assistant Professor

Schools
Medical School
Departments
Pediatrics

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  • Biography

    Rachel Leon, M.D., Ph.D., is an Assistant Professor in the Department of Pediatrics at UT Southwestern Medical Center. She joined the UT Southwestern faculty in 2019.

    Dr. Leon completed medical and graduate school at West Virginia University School of Medicine, followed by a residency in pediatrics and a fellowship in neonatal-perinatal medicine at Indiana University School of Medicine/Riley Hospital for Children.

    As a scientist, Dr. Leon is interested in neuroplacentology, an emerging field focused on placental connections to fetal health.

  • Education
    Other Post Graduate Training
    West Virginia University School of Medicine (2013)
    Graduate School
    West Virginia University School of Medicine (2013)
    Medical School
    West Virginia University School of Medicine (2013)
    Residency
    Indiana University School of Medicine/Riley Hospital for Children (2016), Pediatrics
    Fellowship
    Indiana University School of Medicine/Riley Hospital for Children (2019), Neonatal-perinatal Medicine
  • Research Interest
    • Connections between neonatal cerebral blood flow/ autoregulation, placental pathology, and brain development.
    • Neuroprotection and neurodevelopmental outcomes in neonates with congenital heart disease, stroke, HIE, and prematurity.
    • Placental connections to fetal health, and specifically, placental influences on fetal brain development, a new field called neuroplacentology.
    • Using advanced magnetic resonance imaging techniques and analysis, she is investigating placental perfusion and oxygenation, and how this vital organ supports fetal brain development.
  • Publications
    Results of a Preoperative Screening Brain Magnetic Resonance Imaging Protocol in Neonates Undergoing Cardiopulmonary Bypass
    Islam IS, McGetrick ME, Leon R, Reyes K, Davies RR, Jaquiss RD, Andersen ND Annals of Thoracic Surgery 2026
    Placental Adaptations to Pregnancy Comorbidities in Fetal Congenital Heart Disease
    Baldauf C, Desmond A, Leon RL, Rajagopalan V Current Treatment Options in Cardiovascular Medicine 2025 Dec 27
    Impact of fetal inflammatory response on brain MRI abnormalities in extremely preterm infants
    Mir IN, Machie M, Clarke R, Brown LS, Leon R, Wisnowski JL, Chalak L Pediatric Research 2025 Dec 98 2203-2210
    Multi-organ dysfunction across the neonatal encephalopathy spectrum
    Bitar L, Leon RL, Liu YL, Kota S, Chalak LF Pediatric Research 2025 Nov 98 1849-1855
    Placental Role in Fetal Neonatal Neurologic Outcomes
    Chalak LF, Bitar L, Leon R, Mir I Pediatric clinics of North America 2025 Oct 72 793-804
    Timing of initiation of therapeutic hypothermia in neonates with hypoxic ischemic encephalopathy born at a high-volume urban safety net hospital
    Pazandak CC, Martinez MG, Whiting ME, Kota S, Brown LS, Chalak LF, Leon RL Early Human Development 2025 May 204
    Placental inflammatory response and association with the severity of neonatal hypoxic ischemic encephalopathy
    Mashat S, Bitar L, Mir IN, Leon RL, Brown LS, Chalak LF Early Human Development 2025 Feb 201
    Subgaleal hemorrhage in neonates: a comprehensive review and summary recommendations
    Babata K, Vadlamudi G, Bailey NA, Gill S, Viswanathan P, Sillero R, Seidu T, Mangona KL, Leon R, Angelis D Journal of Perinatology 2025 Feb 45 167-179
    Neurodevelopmental outcomes in extremely preterm infants with placental pathologic evidence of fetal inflammatroy response
    Alayli Y, Brown LS, Tolentino-Plata K, Leon R, Heyne R, Chalak LF, Mir IN Pediatric Research 2025 Feb 97 1147-1154
    Arterial Spin Labeled MRI to Detect Early Placental Perfusion Differences in Fetal Heart Disease
    Leon RL, Navalta M, Greer JS, Madhuranthakam AJ, Udayakumar D JAMA Network Open 2025
  • Honors & Awards
    • Southern Society for Pediatric Research Young Faculty Award
      (2022)
    • UT-FOCUS Award
      UT Southwestern Medical Center (2021)
    • Nalepa Fellowship Award Finalist
      Indiana University Dept. of Pediatrics (2019)
    • Joyce Victoria McRobbie Pediatric Fellowship Award
      Indiana University Dept. Pediatrics (2017)
    • Presentation/Travel Award
      E.J. Van Liere Memorial Convocation (2010)
    • Scholarship, T32 Behavioral and Biomedical Sciences Training Grant
      West Virginia University (2009)
    • Travel Award
      American Academy of Neurology (2007)
    • Beta Beta Beta Biology Honor Society
      (2005)
    • Departmental Honors, Biology Department
      Guilford College (2005)
    • High Honors, Bachelor of Science Degree
      Guilford College (2005)
    • Poster Award
      Meredith College Undergraduate Research Conference (2005)
    • Women in Science Scholarship
      GlaxoSmithKline (2003-2005)
    • Honors Program Scholarship
      Guilford College (2001-2005)
  • Professional Associations/Affiliations
    • American Academy of Pediatrics (2013)
    • American Medical Association (2009)
    • Cardiac Neurodevelopment Outcomes Collaborative and Developing Brain SIG (2020)
    • Children's Hospitals neonatal Consortium Cardiac Focus Group (2020)
    • Conquering CHD (2021)
    • International Society for Cerebral Blood Flow and Metabolism (2020)
    • Newborn Brain Society (2021)
    • Society for Pediatric Research (2018)
    • Texas Pediatric Society (2020)
    • Trainees and Early Career Neonatologists, Member (2016)