Crouse Health Online: Wellness is just a click away.
  |  Connect with Us: 
Text Size

Health News

Obesity May Reduce Odds of IVF Success, Study Finds

Obesity May Reduce Odds of IVF Success, Study Finds


TUESDAY, July 9 (HealthDay News) -- Obese women who receive donated eggs for in vitro fertilization (IVF) are less likely than women of normal weight to have a successful pregnancy.

That's the finding of a study that reviewed more than 9,500 egg donations at three infertility clinics in Spain between 2000 and 2011. All of the egg donors were of normal weight, but the recipients ranged from lean to obese.

"Based on our results, the chance of having a baby by egg donation is reduced by around one-third for obese women," said Dr. Jose Bellver, of the Valencia Infertility Institute in Valencia, Spain.

The researchers compared the body-mass index (a measurement of body fat based on height and weight) of the egg recipients with their IVF results. As BMI increased, there were significant reductions in the rates of embryo implantation in the uterus, pregnancy, twin pregnancy and live birth.

For example, the live-birth rate was 38.6 percent in lean women, 37.9 percent in normal-weight women, 34.9 percent in overweight women and 27.7 percent in obese women. The rate of embryo implantation in the uterus was 40.4 percent in lean women, 39.9 percent in normal-weight women, 38.5 percent in overweight women and 30.9 percent in obese women.

These trends translated to a 27 percent lower chance of live birth for an obese woman than for a normal-weight woman, the researchers said. Their findings were scheduled for presentation Tuesday at the annual meeting of the European Society of Human Reproduction and Embryology in London.

"We found that obese recipients of eggs from normal-weight donors had a 23 percent lower implantation rate than normal-weight recipients, 19 percent lower clinical pregnancy rate and 27 percent lower live-birth rate," Bellver said in a society news release.

Overweight and obese women should be advised to shed excess pounds before trying to conceive through ovum donation or any other means, the researchers said. "The clinical evidence is now strong enough for implementing preconceptional health policies for obese patients considering assisted reproduction," Bellver said.

Although the study found an association between an IVF recipient's weight and the success of her pregnancy, it did not necessarily show a cause-and-effect link. Data and conclusions presented at meetings should be considered preliminary until published in a peer-reviewed medical journal.

More information

The U.S. National Institute of Child Health and Human Development has more about assisted reproductive technology.

Health NewsCopyright © 2013 HealthDay. All rights reserved.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.


Latest News

CNY Brain Aneurysm Awareness Campaign Raises Funds for Crouse Neuroscience Institute
more >

MedEx Bedside Prescription Delivery Service

Free service offers convenience, patient education at discharge.
more >

Weight Loss Surgery

Is it right for you? Attend a free information seminar held twice monthly.
more >

Quality at Crouse

See how Crouse Hospital strives to provide the best in patient care.
more >

Cheer Up That Special Someone

Say get well or welcome a new arrival with a gift purchased right at Crouse.

more >

Make an Online Donation Now

Your donation of any amount helps support Crouse services & programs in a meaningful way.
more >

Shop Online Now

Say get well, thinking of you or welcome new baby with a unique gift from the Crouse Gift Shop.

more >