{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T16:00:48Z","timestamp":1790784048157,"version":"4.1.0"},"reference-count":108,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2025,6,4]],"date-time":"2025-06-04T00:00:00Z","timestamp":1748995200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Oxygen (O2) is vital for cellular development, function, proliferation, and repair, underscoring its critical role in organogenesis. Both hypoxia (reduced tissue O2) and hyperoxia (excess tissue O2), when prolonged, can trigger inflammation and oxidative stress, contributing to acute and long-term cardiopulmonary and neurodevelopmental morbidity. In sick neonates, immature defense mechanisms and coexisting morbidities demand nuanced and sometimes opposing strategies for O2 saturation targets and therapeutic titration. Most current neonatal O2 targeting guidelines are based on animal models or small clinical studies, resulting in recommendations with limited evidence. This narrative review aims to provide an updated overview of the physiological roles of O2 in development, its delivery and consumption, approaches to O2 saturation monitoring, and therapeutic targeting in neonates under both normal and pathological conditions. We also highlight key knowledge gaps and propose directions for future research on neonatal O2 saturation targeting.<\/jats:p>","DOI":"10.3390\/jcm14113975","type":"journal-article","created":{"date-parts":[[2025,6,4]],"date-time":"2025-06-04T11:14:12Z","timestamp":1749035652000},"page":"3975","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Oxygen Saturation Targeting in the Neonatal Intensive Care Unit"],"prefix":"10.3390","volume":"14","author":[{"given":"Faeq","family":"Almudares","sequence":"first","affiliation":[{"name":"Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bheru","family":"Gandhi","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonathan","family":"Davies","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xanthi","family":"Couroucli","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0168-1448","authenticated-orcid":false,"given":"Natalie","family":"Villafranco","sequence":"additional","affiliation":[{"name":"Division of Pulmonology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4422-3065","authenticated-orcid":false,"given":"Nidhy Paulose","family":"Varghese","sequence":"additional","affiliation":[{"name":"Division of Pulmonology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Milenka Cuevas","family":"Guaman","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charleta","family":"Guillory","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8119-5783","authenticated-orcid":false,"given":"Binoy","family":"Shivanna","sequence":"additional","affiliation":[{"name":"Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,6,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"186","DOI":"10.1017\/S1047951117001706","article-title":"Evolution of the concept of oxygen transport in the critically ill, with a focus on children after cardiopulmonary bypass","volume":"28","author":"Li","year":"2018","journal-title":"Cardiol. 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