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Deferred cord clamping and polythene bags at delivery: measuring and improving quality
  1. Katherine Jane Pettinger1,2,
  2. Sam Nunn1,
  3. Sam J Oddie1
  1. 1Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
  2. 2University of York, York, UK
  1. Correspondence to Dr Katherine Jane Pettinger, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK; katherinepettinger{at}gmail.com

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Deferring cord clamping (DCC) at birth reduces mortality in preterm infants by around a third.1 This extraordinary reduction in mortality occurs in babies of all gestations, meaning the biggest reductions in mortality could be seen in the least mature infants, who have the highest baseline risk of death. While mortality is reduced, is it almost as striking that DCC does not appear to affect major complications of prematurity such as brain injury, bronchopulmonary dysplasia, necrotising enterocolitis or late onset infection,1 leaving the intriguing question of how the benefit is mediated.

Since the publication of a systematic review in 2018,2 there has been a rapid increase in the proportion of very preterm infants (VPIs: born <32 weeks) who receive DCC. In the UK, the proportion increased from 28.9% in 2020 to 55.4% in 2022, an increase we expect to continue. Some centres exceed the 75% adherence that was managed in the trials without the use of cord intact stabilisation. However, in 2022, 25 hospitals in the UK managed DCC in less than 40% of their very preterm deliveries.

What concerns might be slowing complete adoption of this simple, cheap and evidence-based practice? In the linked paper, Dunne et al addressed the question of hypothermia associated with DCC.3 The proportion of hypothermic (<36.5°C) infants on admission to their unit had increased markedly since the introduction of DCC. There is important observational evidence for an association between temperature and mortality, with one study estimating an additional 28% risk of death for each 1°C of hypothermia.4 Polyethylene …

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Footnotes

  • X @samoddie

  • Contributors SJO conceptualised and designed the paper. KJP drafted the initial manuscript. All authors reviewed, revised and edited the manuscript. All authors approved the final manuscript and agree to be accountable for all aspects of the work.

  • Funding Katherine Pettinger, Doctoral Fellow, is funded by the National Institute for Health and Social Care Research (NIHR) for this research (award ref. NIHR301738). The views expressed in this publication are those of the author(s) and not necessarily those of the NIHR, NHS, or the UK Department of Health and Social Care.

  • Competing interests None declared.

  • Provenance and peer review Commissioned; externally peer reviewed.

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