Featured Research

from universities, journals, and other organizations

Health Risks, Benefits Come With Delayed Umbilical Cord Clamping

Date:
April 19, 2008
Source:
Center for the Advancement of Health
Summary:
Waiting just a few minutes to clamp the umbilical cord after a baby is born could boost iron stores in the newborn's blood, but delayed cord clamping comes with an increased risk of jaundice, according to a new review of studies.

Waiting just a few minutes to clamp the umbilical cord after a baby is born could boost iron stores in the newborn's blood, but delayed cord clamping comes with an increased risk of jaundice, according to a new review of studies.

Clamping the cord within 30 to 60 seconds after birth is one of three steps in an "active management" approach to the third stage of labor, a time when a new mother is vulnerable to excessive blood loss. Studies show that active management reduces the risk for hemorrhage, but now lead review author Susan McDonald and other investigators are refining that research.

"We've started to ask 'Is it necessary that we do all three" Which part of this is most important" Did timing of clamping the cord make a difference"'" said McDonald, a professor of midwifery at La Trobe University and the Mercy Hospital for Women in Melbourne, Australia.

McDonald said of the studies included in the review: "We found in terms of the amount of bleeding, delayed clamping did not increase the mother's risk of bleeding."

The review appears in a recent issue of The Cochrane Library, a publication of The Cochrane Collaboration, an international organization that evaluates medical research. Systematic reviews draw evidence-based conclusions about medical practice after considering both the content and quality of existing medical trials on a topic.

The review of 11 studies evaluates the maternal and infant benefits of delaying cord clamping until after the cord stops pulsing, a sign that blood is no longer flowing between the mother's placenta and the baby.

McDonald said in most cases the time difference between early and late cord clamping is just one or two minutes, but the delay allows for an additional infusion of blood from mother to child.

McDonald's analysis found that newborns in the delayed-clamping group had larger stores of iron in their blood. The amount of iron in the blood at birth can influence health, particularly an infant's risk for anemia in the first months of life.

However, the study also found that infants in the delayed-clamping group were more vulnerable to jaundice. Many babies get a mild form of jaundice at birth because the liver is immature and cannot process bilirubin, a yellow byproduct of the breakdown of old red blood cells.

"When the liver can't process all the bilirubin it tends to get pushed out to the tissue and the baby looks a little bit yellow," McDonald said.

Most newborn jaundice subsides without treatment or is treated with simple exposure to sunlight. The review found that infants in the delayed-clamping group had a higher risk for jaundice that needed extra treatment with phototherapy.

"In most places in Western countries where there is a higher income, people have access to hospitals where babies can get that therapy," McDonald said.

"But if you are working in an area where you don't have easy access to treat a child with more severe jaundice, then as a clinician you would need to weigh up the benefits and risks. Allowing the baby to get the extra blood and maybe become jaundiced is a particular problem if you don't have the facilities. In that case, perhaps, you would err on the side of clamping the cord a little earlier," she said.

"There's a happy medium you try to strike," said Joyce Roberts, a certified nurse midwife, professor and coordinator of the Nurse-Midwifery Track at the University of Michigan School of Nursing.

Roberts said many midwives put the baby on the mother's abdomen, above the level of the placenta, so blood continues to flow, but not to excess.

Reference :McDonald SJ, Middleton P. "Effect of timing of umbilical cord clamping of term infants on maternal and neonatal outcomes (Review)." Cochrane Database of Systematic Reviews 2008, Issue 2.


Story Source:

The above story is based on materials provided by Center for the Advancement of Health. Note: Materials may be edited for content and length.


Cite This Page:

Center for the Advancement of Health. "Health Risks, Benefits Come With Delayed Umbilical Cord Clamping." ScienceDaily. ScienceDaily, 19 April 2008. <www.sciencedaily.com/releases/2008/04/080415194222.htm>.
Center for the Advancement of Health. (2008, April 19). Health Risks, Benefits Come With Delayed Umbilical Cord Clamping. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2008/04/080415194222.htm
Center for the Advancement of Health. "Health Risks, Benefits Come With Delayed Umbilical Cord Clamping." ScienceDaily. www.sciencedaily.com/releases/2008/04/080415194222.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins