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Delayed cord clamping protects newborn babies from iron deficiency, research finds

Date:
November 16, 2011
Source:
BMJ-British Medical Journal
Summary:
Waiting for at least three minutes before clamping the umbilical cord in healthy newborns improves their iron levels at four months, according to new research.

Waiting for at least three minutes before clamping the umbilical cord in healthy newborns improves their iron levels at four months, according to research published online in the British Medical Journal (bmj.com).

Delaying cord clamping is not linked to neonatal jaundice or other adverse health effects and should be standard care after uncomplicated pregnancies, adds the study.

Iron deficiency and iron deficiency anemia are major public health problems in young children around the world and are associated with poor neurodevelopment. Young children are at particular risk due to their high iron requirements during rapid growth.

While established research indicates that delayed cord clamping could prevent iron deficiency there are conflicting results regarding the risk of neonatal jaundice and other health problems.

So the authors led by Ola Andersson, consultant in neonatology at the Hospital of Halland in Sweden, and Magnus Domellöf, associate professor of paediatrics at Umeå University, investigated the effects of delayed cord clamping, compared to early clamping, on the iron status of infants at four months of age in a Swedish county hospital.

Four hundred full term infants born after low-risk pregnancies were involved in the study. Some had their umbilical cords clamped after at least three minutes and others had them clamped in less than ten seconds after delivery.

The results show that babies who experienced delayed clamping had better iron levels at four months of age and there were fewer cases of neonatal anemia.

The researchers estimated that, for every 20 babies having delayed clamping, one case of iron deficiency would be prevented, regardless of whether the baby also had anemia. Furthermore, delayed cord clamping was not associated with any adverse health effects.

The authors conclude that delayed cord clamping "should be considered as standard care for full term deliveries after uncomplicated pregnancies."

In an accompanying editorial, Dr Patrick van Rheenen, consultant paediatrician at the University of Groningen in the Netherlands, says that enough evidence now exists to encourage delayed cord clamping.

He says: "The balance of maternal risks and infant benefits of delayed cord clamping now clearly favours the child. How much more evidence is needed to convince obstetricians and midwives that it is worthwhile to wait for three minutes to allow for placental transfusion, even in developed countries?"


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Journal References:

  1. Ola Andersson, Lena Hellström-Westas, Dan Andersson, Magnus Domellöf. Effect of delayed versus early umbilical cord clamping on neonatal outcomes and iron status at 4 months: a randomised controlled trial. BMJ, 2011; DOI: 10.1136/bmj.d7157
  2. Patrick van Rheenen. Delayed cord clamping and improved infant outcomes. BMJ, 2011; DOI: 10.1136/bmj.d7127

Cite This Page:

BMJ-British Medical Journal. "Delayed cord clamping protects newborn babies from iron deficiency, research finds." ScienceDaily. ScienceDaily, 16 November 2011. <www.sciencedaily.com/releases/2011/11/111115191226.htm>.
BMJ-British Medical Journal. (2011, November 16). Delayed cord clamping protects newborn babies from iron deficiency, research finds. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2011/11/111115191226.htm
BMJ-British Medical Journal. "Delayed cord clamping protects newborn babies from iron deficiency, research finds." ScienceDaily. www.sciencedaily.com/releases/2011/11/111115191226.htm (accessed July 31, 2014).

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