Karen Marie Puopolo, MD, PhD
Professor of Pediatrics (Neonatology & Newborn Services) at the Children's Hospital of Philadelphia
Attending Physician (Neonatology), The Children's Hospital of Philadelphia, Philadelphia, PA
Medical Director, NICU and Well Nursery, Pennsylvania Hospital
Research Faculty, Clinical Futures (former Center for Pediatric Clinical Effectiveness), The Children's Hospital of Philadelphia, Philadelphia, PA
Section Chief, Newborn Medicine, Pennsylvania Hospital, Philadelphia, PA
Department: Pediatrics
Contact information
Children's Hospital of Philadelphia
Newborn Care at Pennsylvania Hospital
800 Spruce Street - 2nd Floor
Philadelphia, PA 19107
Newborn Care at Pennsylvania Hospital
800 Spruce Street - 2nd Floor
Philadelphia, PA 19107
Office: 215-829-3301
Fax: 215-829-7211
Fax: 215-829-7211
Publications
Links
Search PubMed for articles
Karen Puopolo MD, PhD is an attending neonatologist and medical director of CHOP Newborn Care at Pennsylvania Hospital.
Search PubMed for articles
Karen Puopolo MD, PhD is an attending neonatologist and medical director of CHOP Newborn Care at Pennsylvania Hospital.
Education:
BS (Physics and Applied Physics)
Yale University, 1985.
MD (Medicine)
Tufts University School of Medicine, 1993.
PhD (Cellular and Molecular Physiology)
Tufts University School of Graduate Biomedical Sciences, 1993.
Permanent linkBS (Physics and Applied Physics)
Yale University, 1985.
MD (Medicine)
Tufts University School of Medicine, 1993.
PhD (Cellular and Molecular Physiology)
Tufts University School of Graduate Biomedical Sciences, 1993.
Description of Clinical Expertise
I have 25 years of experience as a practicing neonatologist in large perinatal centers; and significant experience conducting research in neonatal infectious diseases and mentoring clinical and research trainees. I spent the first 14 years of my academic career at Boston Children’s Hospital, Brigham and Women’s Hospital and Harvard Medical School, and was recruited to the University of Pennsylvania and Children’s Hospital of Philadelphia (CHOP) in 2014. I currently serve as Section Chief for Newborn Medicine at Pennsylvania Hospital; work clinically at CHOP and Pennsylvania Hospital.Description of Other Expertise
I am committed to medical research training in newborn medicine and have trained multiple pre- and post-doctoral fellows during my career. I currently serve as primary mentor for one physician who has completed a K23 grant and is now an R01-funded independent investigatory at Penn and CHOP. I serve at the primary mentor for another physician with a current K08 grant and for a third physician when she was supported by a T32 grant and now has a well-scored K23 grant awaiting funding. In addition, I am member of the advisory committee for a 4th physician who was recently awarded a K08 grant.Description of Research Expertise
I began my neonatal research career as a laboratory-based scientist investigating mechanisms of virulence in Group B Streptococcus, an important neonatal microbial pathogen. My interests evolved to focus on neonatal sepsis risk assessment. In collaboration with Dr. Gabriel Escobar, I performed a series of studies addressing the risk of neonatal early-onset sepsis among term and late preterm infants, and developed risk prediction models based on objective data available at the moment of birth and newborn clinical condition. We transformed these Bayesian multivariate models into a practical “calculator,” providing neonatal clinicians a Sepsis Risk Score to estimate individual infant risk and guide care decisions. Our work catalyzed widespread adoption of these models and fundamentally changed national perinatal practice. My research group currently focuses on sepsis risk assessment among preterm infants; on national infection epidemiology and antibiotic practice; and on determining the longer-term health outcomes of perinatal antibiotics exposures. During the SARS-CoV-2 pandemic, my research group leveraged our existing infrastructure to conduct studies of maternal COVID seroepidemiology and transplacental antibody transfer. My research group are all faculty in the CHOP Clinical Futures program. Finally, I am the local principal investigator for the NIH-funded Neonatal Research Network. Pennsylvania Hospital has the largest perinatal center in Philadelphia and is an active site for clinical research, and specifically for Neonatal Research Network studies.Selected Publications
Messick EA, Saha S, Slaughter JL, Kielt MJ, Benninger KL, Bell EF, Stoll BJ, Puopolo KM, Mukhopadhyay S, Flannery DD, Wyckoff MH, Cotten CM, Patel RM, Laptook AR, Grisby C, Das A, Walsh MC, Sánchez PJ; Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. : Maternal Coronavirus Disease 2019 Test Positivity and Neonatal Intensive Care Unit Outcomes for Infants Born Extremely Preterm. J Pediatr 288: 114840, Jan 2026.Laughon MM, Thomas SM, Watterberg KL, Kennedy KA, Keszler M, Ambalavanan N, Davis AS, Slaughter JL, Guillet R, Colaizy TT, Cotten CM, Dhawan MA, Bose CL, Talbert J, Smucny S, Benitz WE, Rysavy MA, Ohls RK, Baserga MC, DeMauro SB, Jaleel M, Jackson WM, Carlo WA, Puopolo KM, Hibbs AM, Katheria A, Sánchez PJ, D'Angio CT, Patel RM, Johnson BA, Chock VY, Bhatt AJ, Merhar SL, Moore R, Laptook AR, Ghavam S, Fuller J, Vyas-Read S, Kicklighter SD, Steinbrekera B, Anderson K, Reynolds AM, Wyckoff MH, Montoya C, Das A, Do B, Chang S, Higgins RD, Walsh MC; Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. : Expectant Management vs Medication for Patent Ductus Arteriosus in Preterm Infants: The PDA Randomized Clinical Trial. JAMA Dec 2025 Notes: Epub ahead of print.
Minor AA, Coggins SA, Sheffield JS, Puopolo KM, Milstone AM. : A model for prevention: applying lessons from Group B Streptococcus to Staphylococcus aureus in very low birth weight neonates. J Perinatol Nov 2025 Notes: Epub ahead of print.
Coggins SA, Zevallos Barboza A, Puopolo KM, Flannery DD.: Late Antibiotic Use Among Preterm Infants Admitted to the Neonatal Intensive Care Unit. Pediatrics 156(5), Nov 2025.
Eichenwald E, Corwin M, McEntire B, Knoblach S, Limperopoulos C, Kapse K, Kerr S, Heeren TC, Ikponmwonba C, Hunt CE; ICAF Study Group: Intermittent hypoxia and caffeine in infants born preterm: the ICAF Randomized Clinical Trial. Arch Dis Child Fetal Neonatal Ed Nov 2025 Notes: Epub ahead of print.
Ambalavanan N, Carlo WA, Nowak KJ, Wiener LE, Cosby SS, Bhatt AJ, Watterberg KL, Poindexter BB, Keszler M, D'Angio CT, Brion LP, Narendran V, Rau CA, Cotten CM, Laughon MM, Das A, Rysavy MA, Hibbs AM, Fuller J, Puopolo KM, Katheria A, Patel RM, Bermick JR, Laptook AR, Prelipcean I, Wyckoff MH, Moore R, Merhar SL, Ohls RK, Yoder BA, Perez M, Ghavam S, Meyer LR, Chock VY, DeMauro SB, Jackson WM, Handa D, Walsh MC; National Institute of Child Health and Human Development Neonatal Research Network.: Early Intratracheal Budesonide to Reduce Bronchopulmonary Dysplasia in Extremely Preterm Infants: The Budesonide in Babies (BiB) Randomized Clinical Trial. JAMA 334(16): 1452-1462. Oct 2025.
Coggins SA, Quarshie W, Grundmeier RW, Shu D, Gerber JS, Dhudasia MB, Puopolo KM, Mukhopadhyay S: Perinatal antibiotic exposure and risk of childhood infections: a retrospective cohort study. Lancet Reg Health Am 52: 101264, Oct 2025.
Zevallos Barboza A, Mukhopadhyay S, Puopolo KM, Shu D, Gerber JS, Flannery DD. : Comparison of metrics of neonatal intensive care unit antibiotic use. Infect Control Hosp Epidemiol 46(9): 1-7, Aug 2025.
Koebnick C, Mukhopadhyay S, Getahun D, Tartof SY, Xiang AH, Puopolo KM, Sidell MA. : The Contributions of delivery mode and intrapartum antibiotic exposure to body mass index among children through 5 years of age. Eur J Obstet Gynecol Reprod Biol 311: 113984, Jul 2025 Notes: Epub 2025 Apr 20.
Carlo WA, Eichenwald EC, Carper BA, Bell EF, Keszler M, Patel RM, Sánchez PJ, Goldberg RN, D'Angio CT, Van Meurs KP, Hibbs AM, Ambalavanan N, Cosby SS, Newman NS, Vohr BR, Walsh MC, Das A, Ohls RK, Fuller J, Rysavy MA, Ghavam S, Brion LP, Puopolo KM, Moore R, Baack ML, Colaizy TT, Baserga M, Osman AF, Merhar SL, Poindexter BB, DeMauro SB, Kumar V, Cotten CM; Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network.: Extended Caffeine for Apnea in Moderately Preterm Infants: The MoCHA Randomized Clinical Trial. JAMA 333(24): 2154-2163, June 2025.
