Featured Research

from universities, journals, and other organizations

Difficult Births In Obese Women Due To Uterus Failure

Date:
April 19, 2007
Source:
University of Liverpool
Summary:
Scientists have uncovered the reason why overweight women have more Caesarean sections -- they are at significant risk of their uterus contracting poorly in childbirth.

Liverpool scientists have uncovered the reason why overweight women have more Caesarean sections; they are at significant risk of their uterus contracting poorly in childbirth.

Related Articles


In a study of 4,000 pregnant women, researchers found that almost 1 in 5 overweight women had to undergo an emergency Caesarean Section birth because the muscles in their uterus failed. The research suggests obesity impairs the ability of the uterus to contract sufficiently in order to dilate the cervix and deliver the baby.

The team from the University of Liverpool's Physiology department found that obese women were 3.5 times more likely to require a Caesarean for slow labour than normal weight women.

Obese women who gave birth vaginally were also found to encounter other problems in child birth -- more than twice as many (6%) experienced excessive bleeding following delivery compared with normal weight women (3%). This blood loss was also attributed to poor uterine activity in the obese group. Heavy bleeding occurs when the uterus is unable to contract well enough to clamp off the blood vessels that are sheared following delivery of the placenta.

Professor Sue Wray commented: "Our research shows overweight women are at considerably higher risk of having to undergo an emergency Caesarean Section birth and find labour a more difficult experience than normal weight women. Interestingly, when we took uterus muscle samples from the overweight women and studied them in the lab they also performed poorly and contracted less well than matched samples from normal weight women".

The research team found that less calcium was able to enter the uterine cells of the obese women to support uterus muscles in contracting during labour.

Professor Wray explained: "We suspect one reason preventing sufficient levels of calcium entering the uterus muscles is the high levels of cholesterol in an obese woman's bloodstream. This could disrupt cell membranes and signalling pathways, including calcium entry. We will be investigating this further in future studies."

Dr Siobhan Quenby from the University of Liverpool's Obstetrics department commented: "In the meantime it is vital pre-pregnancy advice and counselling is available to women about the implications of weight on childbirth. Pregnancies among overweight women must be classified as high risk pregnancies and appropriate antenatal care should be provided so they receive the optimum care during maternity."

The research, funded by the Medical Research Council, has been published in the British Journal of Obstetrics and Gynaecology.


Story Source:

The above story is based on materials provided by University of Liverpool. Note: Materials may be edited for content and length.


Cite This Page:

University of Liverpool. "Difficult Births In Obese Women Due To Uterus Failure." ScienceDaily. ScienceDaily, 19 April 2007. <www.sciencedaily.com/releases/2007/04/070418095053.htm>.
University of Liverpool. (2007, April 19). Difficult Births In Obese Women Due To Uterus Failure. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2007/04/070418095053.htm
University of Liverpool. "Difficult Births In Obese Women Due To Uterus Failure." ScienceDaily. www.sciencedaily.com/releases/2007/04/070418095053.htm (accessed October 24, 2014).

Share This



More Health & Medicine News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. Video provided by Newsy
Powered by NewsLook.com
Ebola Fears Keep Guinea Hospitals Empty

Ebola Fears Keep Guinea Hospitals Empty

AP (Oct. 23, 2014) Fears of Ebola are keeping doctors and patients alike away from hospitals in the West African nation of Guinea. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Despite Rising Death Toll, Many Survive Ebola

Despite Rising Death Toll, Many Survive Ebola

AP (Oct. 23, 2014) The family of a Dallas nurse infected with Ebola in the US says doctors can no longer detect the virus in her. Despite the mounting death toll in West Africa, there are survivors there too. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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