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Umbilical cord milking in preterm infants is comparable to delayed cord clamping in providing placental transfusion
  1. Yousef Gargani1,
  2. Catherine M Harrison2
  1. 1 Neonatology, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
  2. 2 Neonatology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
  1. Correspondence to Dr Yousef Gargani, Neonatology, Bradford Teaching Hospitals NHS Foundation Trust, Bradford BD9 6RJ, UK; ygargani{at}

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Review of: Shirk S, Manolis S, Lambers D, et al. Delayed clamping vs milking of umbilical cord in preterm infants: a randomized controlled trial. Am J Obstet Gynecol 2019;220:482.

Study design


Unblinded, randomised controlled trial.


Single tertiary neonatal unit in the USA.


Two hundred and four singleton infants delivered between 23+0 and 34+6 weeks gestation. One hundred and four allocated to delayed cord clamping (including 17 extremely preterm ie, <28 weeks gestation) and 100 allocated to cord milking (including 12 extremely preterm). No significant difference in maternal factors or demographics.


Patients were randomised to receive either delayed umbilical cord clamping …

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  • Contributors YG wrote the initial paper. CMH revised and edited the manuscript.

  • Provenance and peer review Not commissioned; internally peer reviewed.