Navigation Links
Waiting to Clamp the Umbilical Cord May Be Better for Babies
Date:5/26/2010

Cord blood and stem cells continue to flow to newborn in minutes after birth, review finds

WEDNESDAY, May 26 (HealthDay News) -- Pregnant women may want to consider asking their doctors to hold off on clamping the umbilical cord for a few minutes after the baby is born, a new study suggests.

Clamping the cord in the seconds after birth cuts off the blood flow from mom to baby. While not necessarily harmful, the common practice in delivery rooms potentially robs newborns of those last precious minutes of cord blood, the researchers said, and cord blood contains stem cells that have regenerative properties and can grow into different types of cells.

Research suggests there may be some benefits to getting that extra blood from mom right after birth, said senior study author Dr. Paul Sanberg, director of the University of South Florida's Center of Excellence for Aging and Brain Repair.

Delaying clamping for an extra minute or two may help prevent anemia in full-term infants, according to a study cited by the researchers. Studies on preterm infants have found delaying clamping the cord for 30 seconds or more reduced the incidence of anemia, intraventricular hemorrhage (brain bleeding), late-onset sepsis (a complication of infection in the days after birth), and decreased the need for blood transfusions, according to the study.

Calling the cord blood "nature's first stem cell transplant," Sanberg said more needs to be learned about the impact of cutting the cord before evolution intended.

"As we learn more about the value of cord blood, the benefits of delaying cord clamping may outweigh any risks, especially in preemies or in babies we know may have some problems before or shortly after birth," Sanberg said.

The paper, a review of medical literature on cord clamping, was published in a recent issue of the Journal of Cellular and Molecular Medicine.

In the womb, the umbilical cord connects the developing fetus to the mother's placenta. During birth, the placenta and umbilical cord contract and pump blood toward the newborn, according to background information in the article.

Within a few minutes of birth, the cord stops pulsing and blood flow ceases.

Evolutionarily speaking, women probably gave birth squatting, a position that would have helped the cord blood to rush toward the baby in the moments after birth, Sanberg said.

Birthing practices, of course, have changed for most U.S. women, and so have ideas about cord blood. Decades ago, doctors also believed the blood inside the cord was ordinary blood, Sanberg noted. Doctors now know umbilical cord blood contains stem cells.

"If you look at most historical societies, babies were born using gravity, which seems to help the transfer of the blood," Sanberg explained. "It's only in the last century that Western medicine has focused on clamping and cutting the cord to separate the baby so quickly."

Clamping cuts off blood supply prior to cutting the cord.

In the 1980s, ob-gyns were taught to clamp the umbilical cord of preterm infants quickly, said Dr. Bruce Young, a professor of obstetrics and gynecology at NYU Langone Medical Center.

Preterm infants are at higher risk of jaundice because they don't yet have a mature enough liver to break down bilirubin, a by-product of red blood cell metabolism. Preventing preterm infants from receiving that extra volume of blood from the mom was believed to help ward off jaundice, Young explained.

But as methods of caring for preemies improved, and doctors learned that exposing infants to light can help with bilirubin metabolism, early cord clamping was no longer encouraged, Young said.

In his experience, Young said, few doctors cut the cord in under a minute, even for full-term newborns. And many of today's moms request to have the baby placed on their abdomen before the cord is cut, further delaying cutting, Young said.

Still, the study brings up an interesting issue about what, if any, benefit another minute or so of cord blood might have for a baby.

"The standard of care is not to rush cord clamping," Young said. "My personal feeling is that the preponderance of evidence is that it's better to wait a minute or two."

A mother's decision to collect cord blood for storage and possible use later on could encourage early clamping to ensure there's plenty of blood to save. Experts urge moms not to hurry clamping for cord blood storage purposes.

More information

Learn more about stems cells at the U.S. National Institutes of Health.



SOURCES: Paul Sanberg, M.D., director, Center of Excellence for Aging and Brain Repair, University of South Florida, Tampa, Fla.; Bruce K. Young, M.D., professor, obstetrics and gynecology, NYU Langone Medical Center, New York City; March 2010, Journal of Cellular and Molecular Medicine


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Women Arent Waiting to Seek Infertility Help
2. Get Vaccinated Against a Second Wave of H1N1 Flu for Only $15 And no Waiting in Long Lines
3. Trustmark and HealthFitness Announce Early Termination of Hart-Scott-Rodino Waiting Period
4. Xyngular™ Distributors Continue Waiting For Xyngular Xyng™ As Zija's XM3™ "Happy Pill" Reaches Record Sales
5. Waiting Safe for Some at Risk of Glaucoma
6. Pitt/Magee research finds women with preeclampsia have fewer blood vessel precursor cells
7. First successful use of expanded umbilical-cord blood units to treat leukemia
8. Umbilical cord could be new source of plentiful stem cells, say Pitt researchers
9. Low Umbilical Cord pH Tied to Death, Brain Damage
10. Ultrasound measurement of fetal adrenal gland a better predictor of preterm birth
11. A better sign of blood vessel narrowing and early coronary artery disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... ... 2016 , ... Austin residents seeking Mohs surgery services, can now turn to ... Dr. Russell Peckham for medical and surgical dermatology. , Dr. Dorsey brings specialization to ... fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey was under the direction of ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson has ... he has implemented orthobiologic procedures as a method for treating his patients. The ... first doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use ...
(Date:6/24/2016)... ... ... June 19, 2016 is World Sickle Cell Observance Day. In an effort to ... treatments, Serenity Recovery Center of Marne, Michigan, has issued a pain management ... (SCD) is a disorder of the red blood cells, which can cause episodes of ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Comfort Keepers® of ... Cancer Society and the Road To Recovery® program to drive cancer patients to and ... other adults to ensure the highest quality of life and ongoing independence. Getting ...
(Date:6/24/2016)... ... June 24, 2016 , ... Puradigm® & Innovative ... has initiated cultivation and processing operations at its production facility, and opened its ... Puradigm is the manufacturer of a complete system of proactive air and surface ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... 2016 Jazz Pharmaceuticals plc (Nasdaq: ... Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR"), ... Inc. ("Celator"; Nasdaq: CPXX ) expired effective ... As previously announced on May 31, 2016, ... agreement under which Jazz Pharmaceuticals has commenced a tender ...
(Date:6/26/2016)... 2016 Story Highlights: ... within the health care industry is causing providers to ... , Deloitte offers a suite of solutions for health ... efficient cost optimization: labor resource analysis, revenue cycle optimization ... better outcomes and better economics ...
(Date:6/24/2016)... , June 24, 2016  Collagen Matrix, Inc., ... development and manufacturing of collagen and mineral based ... today that Bill Messer has joined ... to further leverage the growing portfolio of oral ... Bill joins the Collagen Matrix executive ...
Breaking Medicine Technology: