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Elective caesarean: does delay in cord clamping for 30 s ensure sufficient iron stores at 4 months of age? A historical cohort control study
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
2016 (English)In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 6, no 11, e012995Article in journal (Refereed) Published
Abstract [en]

Objective: To compare iron stores in infants born after elective caesarean section (CS) and a 30 s delay of umbilical cord clamping with those born vaginally after early (<= 10 s) or delayed (>= 180 s) cord clamping. Design: Prospective observational study with historical control. Setting: Swedish county hospital. Population: 64 infants born after elective CS were compared with a historical control of 166 early clamped and 168 delayed clamped after vaginal birth. Methods: Blood and iron status were measured in blood samples collected at birth, 48-96 hours after birth, 4 and 12 months of age. Primary and secondary outcome measures: Ferritin at 4 months of age was the primary outcome, second outcome measures were other indicators of iron status, and haemoglobin, at 4 and 12 months of age, as well as respiratory distress at 1 and 6 hours after birth. Results: At 4 months infants born by elective CS had better iron status than those born vaginally subjected to early cord clamping, shown by higher adjusted mean difference of ferritin concentration (39 mu g/L (95% CI 10 to 60)) and mean cell volume (1.8 fL (95% CI 0.6 to 3.0)); and lower levels of transferrin receptors (-0.39 mg/L (95% CI -0.69 to -0.08)). No differences were seen between infants born after elective CS and delayed clamped vaginally born infants at 4 months. No differences were found between groups at 12 months of age. Conclusions: Waiting to clamp the umbilical cord for 30 s after elective CS results in higher iron stores at 4 months of age compared with early cord clamping after vaginal birth, and seems to ensure iron status comparable with those achieved after 180 s delayed cord clamping after vaginal birth.

Place, publisher, year, edition, pages
2016. Vol. 6, no 11, e012995
National Category
Pediatrics
Identifiers
URN: urn:nbn:se:umu:diva-132063DOI: 10.1136/bmjopen-2016-012995ISI: 000391303400007OAI: oai:DiVA.org:umu-132063DiVA: diva2:1080526
Available from: 2017-03-10 Created: 2017-03-10 Last updated: 2017-03-10Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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