Navigation Links
C-Sections Might Put Preemies at Risk for Breathing Problems
Date:2/9/2012

By Lisa Esposito
HealthDay Reporter

THURSDAY, Feb. 9 (HealthDay News) -- Small, premature infants born by cesarean section are at 30 percent higher risk for serious breathing problems than those delivered vaginally, a new study finds.

Respiratory distress syndrome, which mostly affects premature newborns and can lead to ongoing breathing problems, blindness and brain damage, was more common in the babies born by cesarean, or C-section, delivery, researchers found.

"I would say that we at least showed that there may not be any benefit to cesarean delivery in preterm births, and more research is needed before the C-section rate goes up even further," said study leader Dr. Erika Werner, an assistant professor of maternal-fetal medicine at the Johns Hopkins School of Medicine in Baltimore.

Between 2002 and 2009, cesarean deliveries in the United States rose from 27 percent of births to 34 percent, according to a HealthGrades report. The U.S. Centers for Disease Control and Prevention recently reported a dip in rates to slightly under 33 percent in 2010.

Groups such as the American Congress of Obstetricians and Gynecologists are trying to curb cesarean deliveries, but without much success.

"I'm acutely aware as a clinician that the C-section rate is rising, and there were prior studies that really had mixed results," Werner said. "Some suggested an increased risk of bleeding in the brain and some suggested increased risk of death in this population with a vaginal delivery. So I really wanted to look at a contemporary, diverse population."

The researchers analyzed birth data on 2,560 small-for-gestational-age babies delivered between 25 and 34 weeks of pregnancy in New York City hospitals from 1995 to 2003. (Before 37 weeks is considered preterm). Forty-six percent were delivered vaginally and 54 percent by C-section. The study only looked at live births and excluded mothers who had a previous cesarean delivery.

Vaginal deliveries that used forceps or vacuum were excluded from the study, but they're not usually a factor with such small newborns, Werner explained.

The study found no difference in the incidence of brain bleeds, seizure or sepsis between the two types of delivery. While cesarean-delivered babies had lower Apgar scores -- a measure of newborn health -- the difference was not significant after taking other factors into account. But the higher risk of respiratory distress syndrome still held.

The study is slated for presentation Thursday at the annual meeting of the Society for Maternal-Fetal Medicine in Dallas.

Dr. Diane Ashton, deputy medical director of the March of Dimes, who was not involved in the new study, said the results echo other recent findings.

"This particular study shows that for infants that are premature and small-for-gestational-age, which tend to be thought of as rather fragile infants, the cesarean delivery doesn't offer any protection from the adverse outcomes," Ashton said.

In general, the March of Dimes stance "is that elective deliveries -- and that's cesarean sections and inductions -- should not occur for infants born before 39 weeks unless there's a medical indication," she noted.

"For those instances where there is a strong medical indication, either because of the mother's health or the fetus' health, I think it's important that women understand that it's a major surgery and that it can be associated with complications," Ashton added.

Werner said her team did a similar study on premature infants whose weight fell in the normal range. "We had very similar outcomes, although the respiratory distress was even more impressive and there was more of a benefit to vaginal delivery," she said.

Ashton said that vaginal birth helps babies breathe. "The process of delivering babies vaginally and going through the birth canal and getting the amniotic fluid out of the lungs can enhance their respiratory status," she explained.

While the new study found an association between cesarean deliveries and breathing problems in preterm babies, it did not prove a cause-and-effect relationship.

The study relied on birth certificate and hospital-discharge data. "We don't know if C-section just selects a population more at risk for respiratory distress or if C-section causes respiratory distress. We can't tell which comes first in this kind of study," Werner said.

Ashton said it's not too soon for these and similar findings to influence practice.

"Certainly there should be some review and maybe recommendations from the American Congress of Obstetricians and Gynecologists as to where they think practice should change," Ashton said.

Data and conclusions presented at medical meetings should be viewed as preliminary until published in a peer-reviewed medical journal.

More information

The U.S. National Library of Medicine has more about C-sections.

SOURCES: Erika Werner, M.D., assistant professor, maternal-fetal medicine, Johns Hopkins School of Medicine, Baltimore; Diane Ashton, M.D., M.P.H., deputy medical director, March of Dimes; Feb. 9, 2012, presentation, Society for Maternal-Fetal Medicine annual meeting, Dallas


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

Related medicine news :

1. C-Sections Linked to Doubled Risk for Blood Clots
2. C-Sections Continue 12-Year Climb: U.S. Report
3. Study finds high rate of c-sections after pelvic fractures
4. C-Sections May Raise Celiac Disease Risk in Offspring
5. Panel Finds Many Women Can Avoid Repeat C-Sections
6. Worrying Too Much Might Raise Your Risk for Stroke
7. Experimental Drug Might Beat Aspirin in Preventing Repeat Strokes: Study
8. Science Shows How Exercise Might Help in Prostate Cancer
9. Infections Might Raise Stroke Risk in Children: Study
10. Popular Diabetes Drug Might Cut Pancreatic Cancer Risk: Study
11. Test Might Predict Risk of Lung Cancers Return
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
 C-Sections Might Put Preemies at Risk for Breathing Problems
(Date:2/23/2017)... ... February 23, 2017 , ... Healthcare Research & Analytics® ... the fight against cancer, has produced a seminal study that asked cancer survivors ... top-line findings in a webinar, Defining Compassionate Care Through the Voices of Patients ...
(Date:2/23/2017)... ... (PRWEB) February 23, 2017 -- ... to come together to combine its favorite springtime pastime – ... fruit – apples! To celebrate National Nutrition Month, the U.S. ... Madness” bracket tournament – a five-week, five-round online competition spotlighting ...
(Date:2/23/2017)... (PRWEB) , ... February 23, 2017 , ... Top cosmetic ... Smiling Patriot program today with a new Indiegogo campaign . Individuals are ... homeless veterans in the Los Angeles area, either as a participating patient or through ...
(Date:2/23/2017)... , ... February 23, 2017 , ... HealthPostures, the desk ... an expert sit stand solutions representative to the Minneapolis Home and Garden Show which ... the event that is garnering national attention is the Minneapolis Convention Center. , ...
(Date:2/23/2017)... (PRWEB) , ... February 23, 2017 , ... Carlos ... problems. He has also continued to spiritually evolve, which is the purpose of everyone ... “ Our Spiritual Truths ” (published by Balboa Press) attempts to guide readers to ...
Breaking Medicine News(10 mins):
(Date:2/23/2017)... York , February 23, 2017 ... Holter Monitor Market are GE Healthcare, Koninklijke Philips N.V., ... about 48% in the global market in 2015. Strong ... two key factors assessed to be aiding these players ... Research states that the players in the global market ...
(Date:2/23/2017)... February 23, 2017 Tillotts Pharma ... Berlin office was opened in ... . The portfolio includes Entocort ® for the ... treatment of ulcerative colitis, and VistaPrep ® for ... Swiss specialty pharmaceutical company focused on the treatment of ...
(Date:2/23/2017)... VANCOUVER, British Columbia , Feb. 23, ... ) today announced its year end 2016 financial results.  ... January 2017, OncoGenex, and Achieve Life Science, Inc., a privately ... into a definitive merger agreement under which OncoGenex will ... the proposed merger, Achieve,s stockholders are expected to own ...
Breaking Medicine Technology: