{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T23:08:31Z","timestamp":1789600111939,"version":"build-2803163510"},"reference-count":22,"publisher":"Georg Thieme Verlag KG","issue":"13","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Perinatol"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Umbilical cord blood gas (UCBG) sampling provides biochemical data to identify patients who may benefit from encephalopathy screening, but no standardized national guidelines are currently available. We aimed to determine the prevalence of UCBG sampling in high-risk deliveries at a level IV perinatal center in the absence of standardized collection guidelines and to describe subsequent hospital courses among deliveries without UCBG sampling.<\/jats:p>\n                  <jats:p>This was a single-center retrospective cohort study of high-risk deliveries at \u226536 weeks gestation from 2019 to 2021. High-risk deliveries were defined by acute obstetric events, operative delivery, or 5-minute Apgar \u2264 5. UCBG sampling was classified as attempted, obtained (arterial pH documented), or not attempted. Maternal, intrapartum, and neonatal characteristics were compared between attempted and not-attempted groups, and subgroup analyses evaluated infants without UCBG sampling to identify patients who qualified for encephalopathy screening.<\/jats:p>\n                  <jats:p>The study cohort was comprised of 1,144 (11%) high-risk deliveries, of which 1,034 remained after exclusions. UCBG sampling was attempted in 655 (63%) deliveries, and arterial results were obtained in 541 (52%). Among 131 neonatal intensive care unit (NICU) admissions, 105 (80%) had UCBG sampling attempted, and 83 (63%) had arterial results available. Among 41 NICU admissions with respiratory diagnoses and available admission blood gases, 5 met biochemical criteria for encephalopathy screening, and only 1 had a documented comprehensive neurological examination.<\/jats:p>\n                  <jats:p>The lack of standardized guidelines leads to inconsistent UCBG sampling in high-risk deliveries, highlighting the need for standardized UCBG screening criteria and coordinated obstetric\u2013neonatal workflows.<\/jats:p>","DOI":"10.1055\/a-2824-7217","type":"journal-article","created":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T00:11:23Z","timestamp":1773965483000},"page":"1761-1766","source":"Crossref","is-referenced-by-count":0,"title":["Where's the Cord Gas? Variation in Umbilical Cord Blood Gas Sampling in High-Risk Deliveries"],"prefix":"10.1055","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-6177-4059","authenticated-orcid":false,"given":"Isabella T.","family":"Eiler","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ke","family":"Yan","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erwin","family":"Cabacungan","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Garrett","family":"Fitzgerald","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brock E.","family":"Polnaszek","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4444-2145","authenticated-orcid":false,"given":"Susan S.","family":"Cohen","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2026,3,19]]},"reference":[{"issue":"01","key":"ref1","first-page":"77","article-title":"Hypoxic ischemic encephalopathy (HIE) in term and preterm infants","volume":"43","author":"S Ristovska","year":"2022","journal-title":"Prilozi (Makedon Akad Nauk Umet Odd Med Nauki)"},{"issue":"04","key":"ref2","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1016\/j.siny.2013.05.008","article-title":"Epidemiology and aetiology of neonatal seizures","volume":"18","author":"C Vasudevan","year":"2013","journal-title":"Semin Fetal Neonatal Med"},{"issue":"04","key":"ref3","doi-asserted-by":"crossref","first-page":"F377","DOI":"10.1136\/archdischild-2017-313078","article-title":"Re-examining the arterial cord blood gas pH screening criteria in neonatal encephalopathy","volume":"103","author":"Z A Vesoulis","year":"2018","journal-title":"Arch Dis Child Fetal Neonatal Ed"},{"issue":"02","key":"ref4","doi-asserted-by":"crossref","first-page":"e2025073627","DOI":"10.1542\/peds.2025-073627","article-title":"Therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy: clinical report","volume":"157","author":"S A Zanelli","year":"2026","journal-title":"Pediatrics"},{"issue":"04","key":"ref5","doi-asserted-by":"crossref","first-page":"318","DOI":"10.1111\/j.1479-828X.2010.01192.x","article-title":"Benefits of introducing universal umbilical cord blood gas and lactate analysis into an obstetric unit","volume":"50","author":"C R White","year":"2010","journal-title":"Aust N Z J Obstet Gynaecol"},{"issue":"04","key":"ref6","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/j.srhc.2014.10.002","article-title":"Routine testing of umbilical cord blood after normal delivery should be discontinued","volume":"5","author":"I Wiklund","year":"2014","journal-title":"Sex Reprod Healthc"},{"issue":"03","key":"ref7","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1111\/ajo.13770","article-title":"How well are we collecting umbilical cord lactate and gas samples?","volume":"64","author":"T M Bui","year":"2024","journal-title":"Aust N Z J Obstet Gynaecol"},{"issue":"05","key":"ref8","doi-asserted-by":"crossref","first-page":"1319","DOI":"10.1097\/00006250-200611000-00058","article-title":"ACOG Committee Opinion No. 348, November 2006: umbilical cord blood gas and acid-base analysis","volume":"108","author":"ACOG Committee on Obstetric Practice","year":"2006","journal-title":"Obstet Gynecol"},{"issue":"07","key":"ref9","doi-asserted-by":"crossref","first-page":"854","DOI":"10.1111\/aogs.14572","article-title":"Implementation of universal umbilical cord pH analysis in Denmark. 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