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Caitlin O'Brien, M.D., M.P.H.

Headshot of Caitlin O'Brien
  • Associate Medical Director of the Hopkins Office for Pediatric Education
  • Assistant Professor of Anesthesiology and Critical Care Medicine

Languages: English, Spanish


Pediatric Critical Care Medicine

Research Interests

Cardiopulmonary resuscitation; brain injury after cardiac arrest more


The Johns Hopkins Hospital (Main Entrance)

1800 Orleans St.
The Charlotte R. Bloomberg Children's Center Building
Baltimore, MD 21287 map
Phone: 410-955-6412




  • MD; Georgetown University School of Medicine (2010)


  • Medicine and Pediatrics; The Mount Sinai Hospital (2014)


  • Pediatric Critical Care Medicine; Johns Hopkins University School of Medicine (2017)

Board Certifications

  • American Board of Internal Medicine (Internal Medicine) (2014)
  • American Board of Pediatrics (Pediatric Critical Care Medicine) (2018)
  • American Board of Pediatrics (Pediatrics) (2015)

Research & Publications

Selected Publications

O’Brien CE, Reyes M, Santos PT, Heitmiller SE, Kulikowicz E, Kudchadkar SR, Lee JK, Hunt EA, Koehler RC, Shaffner DH.  A pilot study to compare the use of end-tidal carbon dioxide-guided and diastolic blood pressure-guided chest compression delivery in a swine model of neonatal asphyxial cardiac arrest.  J Am Heart Assoc. 2018;7:e009728

O'Brien CE, Santos PT, Kulikowicz E, Reyes M, Koehler RC, Martin LJ, Lee JK.  Hypoxia-Ischemia and hypothermia independently and interactively affect neuronal pathology in neonatal piglets with short-term recovery.  Dev Neurosci. 2019; 41(1-2): 17-33

O'Brien CE, Santos PT, Reyes M, Adams S, Hopkins CD, Kulikowicz E, Hamrick JL, Hamrick JT, Lee JK, Kudchadkar SR, Hunt EA, Koehler RC, Shaffner DH.  Association of diastolic blood pressure with survival during paediatric cardiopulmonary resuscitation. Resuscitation. 2019; 143: 50-56

O'Brien CE, Santos PT, Kulikowicz E, Lee JK, Koehler RC, Martin LJ.  Neurologic effects of short-term treatment with a soluble epoxide hydrolase inhibitor after cardiac arrest in pediatric swine.  BMC Neurosci. 2020 Oct 31;21(1):43

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