Overview
I am involved in 4 major areas of research:
1) Neuroprotection. Working with colleagues from Cell Therapies, we have added to Duke's experience participating in pivotal trials of hypothermia for term newborns with moderate to severe hypoxic-ischemic encephalopathy (HIE) by completing, with Duke CTSI support, phase I studies of autologous cord blood cells and allogeneic cord tissue derived mesenchymal stromal cells for these infants. and developing and currently leading a multicenter, double-blind randomized clinical trial of autologous cord blood cells or placebo in term infants with moderate or severe HIE.
2) Genomics. We at Duke have been in the NICHD Neonatal Research Network (NRN) since 2001. I led the NRN's development of an Anonymized DNA bank of samples collected from 1,000 extremely low birthweight infants, with phenotype information linked to the samples. This resource has been the basis for multiple candidate gene, and genome wide scan analysis, and has identified variants associated with severe retinopathy of prematurity and necrotizing enterocolitis. We partnered with the Vermont Oxford Network-Rady Genomics collaborative to bring 48 hour turnaround Whole Genome Sequencing to patients in the Duke Intensive Care Nursery, and are continuing work with Medical Genetics faculty to keep Duke at the forefront of testing the effectiveness of applied next-gen sequencing in the NICU.
3) New Technologies: I collaborated with Drs. David Millington from Duke and Vamsee Pamula (a Duke Pratt School graduate), from BAEBIES Inc, on prototype new technology devices for use in newborn screening for lysosomal storage disease as well as multiplex chips for screening for hyperbilirubinemia and related conditions, as well as working with Dr. Pamula and Dr. Michael Freemark (Peds Endocrinology) on screening panels for hypoglycemia and hypothyroidism, and with investigators from UAB on an Acute Kidney Injury panel. I continue active collaborations with Dr. Cynthia Toth and the DARSI lab in pediatric ophthalmology, and Pratt School investigators to develop and apply use of optical coherence tomography (OCT) for retinal imaging that will assess associations between retinal neurovascular development, brain development, and neurodevelopmental outcomes. We continue with a comparative trial of the value and effectiveness of utilization of OCT compared with the current standard indirect ophthalmoscopy for ROP screening in the NICU.
4)Microbiome in Micropreemies and health outcomes of periviable infants. I have worked with multiple epidemiology researchers to assess practice variation within our center, and within the Neonatal Research Network centers, to identify how variation in practice can influence outcomes, with a particular focus on antibiotic use. This work demonstrated strong associations between high empirical antibiotic use in infants with sterile cultures and subsequent morbidities and mortality. This discovery has led to strong collaborations and new initiatives by early career faculty leading studies of the evolving microbiome, leading to hypothesis generation re: the microbiome and optimal growth in extremely preterm infants.
1) Neuroprotection. Working with colleagues from Cell Therapies, we have added to Duke's experience participating in pivotal trials of hypothermia for term newborns with moderate to severe hypoxic-ischemic encephalopathy (HIE) by completing, with Duke CTSI support, phase I studies of autologous cord blood cells and allogeneic cord tissue derived mesenchymal stromal cells for these infants. and developing and currently leading a multicenter, double-blind randomized clinical trial of autologous cord blood cells or placebo in term infants with moderate or severe HIE.
2) Genomics. We at Duke have been in the NICHD Neonatal Research Network (NRN) since 2001. I led the NRN's development of an Anonymized DNA bank of samples collected from 1,000 extremely low birthweight infants, with phenotype information linked to the samples. This resource has been the basis for multiple candidate gene, and genome wide scan analysis, and has identified variants associated with severe retinopathy of prematurity and necrotizing enterocolitis. We partnered with the Vermont Oxford Network-Rady Genomics collaborative to bring 48 hour turnaround Whole Genome Sequencing to patients in the Duke Intensive Care Nursery, and are continuing work with Medical Genetics faculty to keep Duke at the forefront of testing the effectiveness of applied next-gen sequencing in the NICU.
3) New Technologies: I collaborated with Drs. David Millington from Duke and Vamsee Pamula (a Duke Pratt School graduate), from BAEBIES Inc, on prototype new technology devices for use in newborn screening for lysosomal storage disease as well as multiplex chips for screening for hyperbilirubinemia and related conditions, as well as working with Dr. Pamula and Dr. Michael Freemark (Peds Endocrinology) on screening panels for hypoglycemia and hypothyroidism, and with investigators from UAB on an Acute Kidney Injury panel. I continue active collaborations with Dr. Cynthia Toth and the DARSI lab in pediatric ophthalmology, and Pratt School investigators to develop and apply use of optical coherence tomography (OCT) for retinal imaging that will assess associations between retinal neurovascular development, brain development, and neurodevelopmental outcomes. We continue with a comparative trial of the value and effectiveness of utilization of OCT compared with the current standard indirect ophthalmoscopy for ROP screening in the NICU.
4)Microbiome in Micropreemies and health outcomes of periviable infants. I have worked with multiple epidemiology researchers to assess practice variation within our center, and within the Neonatal Research Network centers, to identify how variation in practice can influence outcomes, with a particular focus on antibiotic use. This work demonstrated strong associations between high empirical antibiotic use in infants with sterile cultures and subsequent morbidities and mortality. This discovery has led to strong collaborations and new initiatives by early career faculty leading studies of the evolving microbiome, leading to hypothesis generation re: the microbiome and optimal growth in extremely preterm infants.
Current Appointments & Affiliations
Professor of Pediatrics
·
2016 - Present
Pediatrics, Neonatology,
Pediatrics
Recent Publications
Revisiting retinopathy of prematurity screening criteria to safely reduce infant stress and provider burden at an academic neonatal intensive care unit: a proof-of-concept study.
Journal Article J AAPOS · March 23, 2026 BACKGROUND: Current United States retinopathy of prematurity (ROP) screening guidelines may be overly broad at the cost of undue preterm infant stress and physician workload. Our proof-of-concept study aimed to optimize screening criteria at our institutio ... Full text Link to item CiteExpectant Management vs Medication for Patent Ductus Arteriosus in Preterm Infants: The PDA Randomized Clinical Trial.
Journal Article JAMA · February 17, 2026 IMPORTANCE: The management of patent ductus arteriosus (PDA) in preterm infants is controversial. OBJECTIVE: To determine whether expectant management compared with active treatment of a protocol-defined PDA in preterm infants decreases the incidence of de ... Full text Link to item CiteMaternal Coronavirus Disease 2019 Test Positivity and Neonatal Intensive Care Unit Outcomes for Infants Born Extremely Preterm.
Journal Article J Pediatr · January 2026 OBJECTIVE: To describe the neonatal intensive care unit outcomes of infants born extremely preterm to mothers who test positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) during pregnancy. STUDY DESIGN: Prospective study (March 1, 202 ... Full text Link to item CiteRecent Grants
Neonatal Platelet Transfusion Threshold (NeoPlaTT)
ResearchPrincipal Investigator · Awarded by Research Triangle Institute International · 2024 - 2031Duke University Maternal-Fetal Medicine Units (MFMU) Network Clinical Center
ResearchCollaborating Investigator · Awarded by Eunice Kennedy Shriver National Institute of Child Health and Human Development · 2023 - 2030North Carolina Clinical Center for the Eunice Kennedy Shiver NICHD Cooperative Multicenter Neonatal Research Network
ResearchPrincipal Investigator · Awarded by National Institutes of Health · 2001 - 2030View All Grants
Education
Duke University, School of Medicine ·
2006
M.H.S.
University of Miami ·
1986
M.D.