Several new studies demonstrate the benefits of delayed cord
clamping in infants, particularly preterm infants.
A study in the Journal of Maternal-fetal and neonatal medicine:
the official journal of the European Association of Perinatal Medicine the
Federation of Asia and Oceania Perinatal Societies and the International Society of Perinatal Obstetricians, states that after implementation of a
delayed cord clamping (DCC) policy, preterm singleton infants had improved
temperatures, increased hematocrits and decrease in the prevalence of intraventricular
hemorrhage without significant adverse outcomes.
Jelin, A.C. et al. (2016) Clamp late and maintain perfusion
(CLAMP) policy: delayed cord clamping in preterm infants. Journal of Maternal-Fetal
and Neonatal Medicine. 29(11): 1705-9.
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An interesting study from Advances in Neonatal Care: the
official journal of the National Association of Neonatal Nurses tells us that
DCC was the mainstay practice until the 1950s when a few studies suggested that
it might interfere with active management of the third stage of labor.
Bayer, K. (2016) Delayed Umbilical Cord Clamping in the 21st
Century: Indications for practice. Advances in Neonatal Care. 16(1): 68-73.
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A study published in Transfusion states that DCC greatly diminishes
volume and thus impedes the mount of blood collectable for cord blood banking.
Alan, D.S. (2016) Delayed clamping of the umbilical cord after
delivery and implications for public cord blood banking. Transfusion 56(3): 662-5.
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ACOG has not updated their Practice Bulletin/Opinion since
2014, however, they do state that a delay in umbilical cord clamping for up to
60 seconds may increase total body iron stores and blood volume in all infants . In preterm infants, benefits include improved
transitional circulation, better establishment of RBC volume and decreased need
for blood transfusion.
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There is a nice website called Delayed Cord Clamping with
some updates through 2015 of evidence based articles:
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And here is a nice overview of a study that followed
children years later after DCC:
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