Featured Research

from universities, journals, and other organizations

Researchers shed new light on egg freezing success rates

Date:
May 29, 2013
Source:
New York Medical College
Summary:
Researchers have for the first time codified age-specific probabilities of live birth after in vitro fertilization (IVF) with frozen eggs. By conducting a meta-analysis of oocyte cryopreservation cycles using individualized patient data, researchers were able to report the probability of live birth from IVF cycles.

Researchers from New York Medical College and the University of California Davis have for the first time codified age-specific probabilities of live birth after in vitro fertilization (IVF) with frozen eggs. A team of researchers led by Kutluk Oktay, M.D., a New York Medical College physician/scientist who specializes in preserving the fertility of female cancer patients, conducted a meta-analysis of oocyte cryopreservation cycles using individualized patient data to report the probability of live-birth from IVF cycles.

The study, "Age-specific probability of live birth with oocyte cryopreservation: an individual patient data meta-analysis," was published in the online May issue of the American Society for Reproductive Medicine's journal Fertility and Sterility.

Egg freezing is a relatively recent technique which enables women to preserve their fertility for medical or elective reasons. Until now, women who were undergoing oocyte cryopreservation, or egg freezing, were unable to predict their chances of a live birth once the eggs were reimplanted. Oktay and his team collected raw data from 10 previously published studies on egg freezing, allowing them to amass what may be the world's largest database on pregnancy outcomes after egg freezing. Using this database, which included data from 2,265 egg freezing cycles in 1,805 women in the U.S. and Europe, the researchers generated norms which can be used to determine egg freezing success rates based on a woman's age, the number of eggs frozen, and the method of egg freezing.

"Because of this breakthrough, women and fertility doctors will now be able to use a live pregnancy rate estimator to calculate their individual chances and to make a well-informed decision about the procedure," said Dr. Oktay.

The study also showed that while egg freezing success rates decline with age as expected, there is a sharper drop after age 36. Though pregnancies can result from frozen eggs implanted as late as age 44, the success rates are less promising after age 42.


Story Source:

The above story is based on materials provided by New York Medical College. Note: Materials may be edited for content and length.


Journal Reference:

  1. Aylin Pelin Cil, Heejung Bang, Kutluk Oktay. Age-specific probability of live birth with oocyte cryopreservation: an individual patient data meta-analysis. Fertility and Sterility, 2013; DOI: 10.1016/j.fertnstert.2013.04.023

Cite This Page:

New York Medical College. "Researchers shed new light on egg freezing success rates." ScienceDaily. ScienceDaily, 29 May 2013. <www.sciencedaily.com/releases/2013/05/130529154642.htm>.
New York Medical College. (2013, May 29). Researchers shed new light on egg freezing success rates. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2013/05/130529154642.htm
New York Medical College. "Researchers shed new light on egg freezing success rates." ScienceDaily. www.sciencedaily.com/releases/2013/05/130529154642.htm (accessed April 17, 2014).

Share This



More Health & Medicine News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Could Even Casual Marijuana Use Alter Your Brain?

Could Even Casual Marijuana Use Alter Your Brain?

Newsy (Apr. 16, 2014) — A new study conducted by researchers at Northwestern and Harvard suggests even casual marijuana use can alter your brain. Video provided by Newsy
Powered by NewsLook.com
Thousands Of Vials Of SARS Virus Go Missing

Thousands Of Vials Of SARS Virus Go Missing

Newsy (Apr. 16, 2014) — A research institute in Paris somehow misplaced more than 2,000 vials of the deadly SARS virus. Video provided by Newsy
Powered by NewsLook.com
Formerly Conjoined Twins Released From Dallas Hospital

Formerly Conjoined Twins Released From Dallas Hospital

Newsy (Apr. 16, 2014) — Conjoined twins Emmett and Owen Ezell were separated by doctors in August. Now, nearly nine months later, they're being released from the hospital. Video provided by Newsy
Powered by NewsLook.com
Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) — The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. 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