{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T21:24:26Z","timestamp":1788557066370,"version":"build-2803163510"},"reference-count":22,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2023,1,21]],"date-time":"2023-01-21T00:00:00Z","timestamp":1674259200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004102","name":"Laerdal Foundation for Acute Medicine","doi-asserted-by":"publisher","award":["50007"],"award-info":[{"award-number":["50007"]}],"id":[{"id":"10.13039\/501100004102","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Paediatrica"],"published-print":{"date-parts":[[2023,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>The aim was to study the prevalence of bradycardia at birth in newborns requiring positive pressure ventilation (PPV), distribution of first measured heart rate (HR), changes in HR before start of PPV and HR response to PPV.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A population\u2010based study including newborns \u226530\u2009weeks' gestation receiving PPV at birth. HR was captured immediately after birth and continuously throughout resuscitation using the dry\u2010electrode ECG device NeoBeat. Time of birth was registered in the Liveborn app. Provision of PPV was captured by video.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We included 98 newborns receiving PPV at birth. Among newborns with HR measured within 60\u00a0s after birth, median (quartiles) first HR was 112 (84, 149) bpm recorded 19 (14, 37) s after birth, of which 33% had first HR &lt;100 and 10% had first HR &lt;60\u2009bpm respectively. First HR was widely distributed. Median HR at start PPV 69\u00a0s after birth was 129\u2009bpm. In newborns with an initial low HR, HR typically remained low for 20\u00a0s of PPV before increasing rapidly over the next 20\u201330\u00a0s.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>First measured HR was \u2265100\u2009bpm in two thirds of newborns receiving PPV. In bradycardic infants, HR did not increase until after 20\u00a0s of PPV.<\/jats:p><\/jats:sec>","DOI":"10.1111\/apa.16659","type":"journal-article","created":{"date-parts":[[2023,1,6]],"date-time":"2023-01-06T15:09:25Z","timestamp":1673017765000},"page":"697-705","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Newborns requiring resuscitation: Two thirds have heart rate \u2265100 beats\/minute in the first minute after birth"],"prefix":"10.1111","volume":"112","author":[{"given":"Amalie","family":"Kibsgaard","sequence":"first","affiliation":[{"name":"Department of Paediatrics Stavanger University Hospital  Stavanger Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hege","family":"Ersdal","sequence":"additional","affiliation":[{"name":"Faculty of Health Sciences University of Stavanger  Stavanger Norway"},{"name":"Critical Care and Anaesthesiology Research Group Stavanger University Hospital  Stavanger Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan Terje","family":"Kval\u00f8y","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Physics University of Stavanger  Stavanger Norway"},{"name":"Department of Research, Section of Biostatistics Stavanger University Hospital  Stavanger Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joar","family":"Eilevstj\u00f8nn","sequence":"additional","affiliation":[{"name":"Strategic Research, Laerdal Medical  Stavanger Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4305-141X","authenticated-orcid":false,"given":"Siren","family":"Rettedal","sequence":"additional","affiliation":[{"name":"Department of Paediatrics Stavanger University Hospital  Stavanger Norway"},{"name":"Faculty of Health Sciences University of Stavanger  Stavanger 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