What is delayed cord clamping? It is
the process in which after the baby is born, the doctor does not
clamp the cord right away. I will explore what the evidence says, and
what some of the common misconceptions are. I will link to all of the
sources of information at the end of this post.
According to a Cochran Review on the
studies done on DCC (delayed cord clamping) there is a slight
advantage to waiting up to two minutes to clamp the cord. The slight
advantage is an increase in iron in the baby. There is also a slight
risk of hyperbilirubinemia or polycythemia with DCC. The current
recommendation is still under debate, however there is some consensus
on clamping between 30 seconds and 2 minutes. I will note that these
guidelines are for uncomplicated pregnancies. Complications during
pregnancy could facilitate early cord clamping. There is no negative
effect on the baby with immediate cord clamping.
One of the myths I saw a lot of while
researching this is that you should wait until the cord stops
pulsating. The idea being that as long as the cord is pulsating, it's
transferring nutrients and blood to the baby. This is not supported
by the evidence. A pulsating cord does not mean anything is being
transferred. Another myth is that all of the blood in the placenta
belongs to the baby. This is also a wrong assumption, as some of the
blood would have been needed to support the placenta as well. The
idea that you should wait to clamp the cord because it's the natural
way turns up a lot. This is of course the natural logical fallacy.
As always, follow the recommendation of
your doctor. Because immediate cord clamping has no negative effect,
and the effects of delayed cord clamping are minimal, delayed cord
clamping should only be done under uncomplicated circumstances.
Reference.
http://www.ncbi.nlm.nih.gov/pubmed/22043880
http://www.ncbi.nlm.nih.gov/pubmed/16782490
http://www.ncbi.nlm.nih.gov/pubmed/11867842
http://www.ncbi.nlm.nih.gov/pubmed/15510946
http://jama.jamanetwork.com/article.aspx?articleid=206143
http://www.ncbi.nlm.nih.gov/pubmed/17307809
http://www.ncbi.nlm.nih.gov/pubmed/17374818
http://www.ncbi.nlm.nih.gov/pubmed/16782490
http://www.ncbi.nlm.nih.gov/pubmed/11867842
http://www.ncbi.nlm.nih.gov/pubmed/15510946
http://jama.jamanetwork.com/article.aspx?articleid=206143
http://www.ncbi.nlm.nih.gov/pubmed/17307809
http://www.ncbi.nlm.nih.gov/pubmed/17374818
http://academicobgyn.com/2009/12/03/delayed-cord-clamping-should-be-standard-practice-in-obstetrics/
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