{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T11:31:32Z","timestamp":1789558292877,"version":"build-2803163510"},"reference-count":33,"publisher":"BMJ","issue":"4","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Arch Dis Child Fetal Neonatal Ed"],"accepted":{"date-parts":[[2014,3,2]]},"published-print":{"date-parts":[[2014,7]]},"abstract":"<jats:sec>\n                  <jats:title>Objective<\/jats:title>\n                  <jats:p>To assess whether defined reference ranges of oxygen saturation (SpO<jats:sub>2<\/jats:sub>) and heart rate (HR) of term infants after birth also apply for infants born after midwifery supervised uncomplicated vaginal birth, where delayed cord clamping (DCC) and immediate skin to skin contact (ISSC) is routine management.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Design<\/jats:title>\n                  <jats:p>Prospective observational study.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Setting and patients<\/jats:title>\n                  <jats:p>Infants born vaginally after uncomplicated birth, that is, no augmentation, maternal pain relief or instrumental delivery.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Interventions<\/jats:title>\n                  <jats:p>Midwives supervising uncomplicated birth at home or in hospital in the Leiden region (The Netherlands) used an oximeter and recorded SpO<jats:sub>2<\/jats:sub> and HR in the first 10\u2005min after birth.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Main outcome measures<\/jats:title>\n                  <jats:p>SpO<jats:sub>2<\/jats:sub> and HR values were compared to the international defined reference ranges.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>In Leiden, values of 109 infants were obtained and are comparable with previously defined reference ranges, except for a higher SpO<jats:sub>2 (<\/jats:sub>p&lt;0.05) combined with a slower increase in the first 3\u2005min. The Leiden cohort also had a lower HR (p&lt;0.05) during the first 10\u2005min with a slower increase in the first 3\u2005min. In the first minutes after birth, tachycardia (HR&gt;180 bpm) occurred less often, and a bradycardia (&lt;80\u2005bpm) more often (p&lt;0.05).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Defined reference ranges can be used in infants born after uncomplicated vaginal birth with DCC and ISSC, but higher SpO<jats:sub>2<\/jats:sub> and lower HR were observed in the first minutes.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/archdischild-2013-305484","type":"journal-article","created":{"date-parts":[[2014,4,1]],"date-time":"2014-04-01T00:38:34Z","timestamp":1396312714000},"page":"F309-F314","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":83,"title":["Pulse oximetry in newborns with delayed cord clamping and immediate skin-to-skin contact"],"prefix":"10.1136","volume":"99","author":[{"given":"Marrit","family":"Smit","sequence":"first","affiliation":[{"name":"Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer A","family":"Dawson","sequence":"additional","affiliation":[{"name":"Neonatal Services, The Royal Women's Hospital, Melbourne, Victoria, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Angelina","family":"Ganzeboom","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stuart B","family":"Hooper","sequence":"additional","affiliation":[{"name":"Monash Institute of Medical Research, Melbourne, Victoria, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos","family":"van Roosmalen","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands"},{"name":"Department of Medical Humanities, EMGO Institute VU University Medical Centre, Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arjan B","family":"te Pas","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2014,3,31]]},"reference":[{"key":"2025090514254523000_99.4.F309.1","doi-asserted-by":"publisher","DOI":"10.1136\/adc.2007.120634"},{"key":"2025090514254523000_99.4.F309.2","doi-asserted-by":"publisher","DOI":"10.1016\/j.resuscitation.2006.04.015"},{"key":"2025090514254523000_99.4.F309.3","unstructured":"Dutch Association of Pediatricians (NVK). 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