Featured Research

from universities, journals, and other organizations

Most Embryos Produced During IVF Do Not Result In Live Births

Date:
September 12, 2005
Source:
Yale University
Summary:
Researchers at Yale School of Medicine have found that 85 percent of embryos transferred during in vitro fertilization fail to become live births, highlighting the need for improving diagnostic techniques to identify viable embryos.

New Haven, Conn. -- Researchers at Yale School of Medicine have foundthat 85 percent of embryos transferred during in vitro fertilizationfail to become live births, highlighting the need for improvingdiagnostic techniques to identify viable embryos.

Published in the August issue of Fertility and Sterility, the studyreviewed seven years of U.S. statistics from all the fertility clinicsthat report data on reproductive techniques. Director of the YaleFertility Center, Pasquale Patrizio, M.D., professor in the Departmentof Obstetrics, Gynecology & Reproductive Sciences led the project.

"Something in nature has decided that these implanted embryosare not viable," said Patrizio, who conducted the study with co-authorGeorge Kovalevsky, M.D.

"We as practitioners in the reproductive clinic are in aparadoxical situation," Patrizio added. "There is pressure to reducemultiple births, but we need to do so knowing that the majority of theembryos that are transferred do not implant. It is difficult to strikea balance between these two needs."

Patrizio said he and his fellow physicians strive to betteridentify the embryos with the most potential. But addressing thegrowing pressure to transfer fewer embryos to reduce multiple births isa difficult task unless they can come up with a method in the lab toidentify the best embryos.

"Some potential methods for screening embryos include usingpre-implantation genetic diagnosis and biochemical markers of embryoviability," said Patrizio. "In addition this study should also move thefield toward perfecting methods of egg production."

###

Citation: Fertility and Sterility, Vol. 84, No. 2, 325-530 (August 2005).


Story Source:

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


Cite This Page:

Yale University. "Most Embryos Produced During IVF Do Not Result In Live Births." ScienceDaily. ScienceDaily, 12 September 2005. <www.sciencedaily.com/releases/2005/09/050912124150.htm>.
Yale University. (2005, September 12). Most Embryos Produced During IVF Do Not Result In Live Births. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2005/09/050912124150.htm
Yale University. "Most Embryos Produced During IVF Do Not Result In Live Births." ScienceDaily. www.sciencedaily.com/releases/2005/09/050912124150.htm (accessed September 23, 2014).

Share This



More Health & Medicine News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Liberia Pleads for Help to Fight Ebola

Liberia Pleads for Help to Fight Ebola

AP (Sep. 22, 2014) Liberia's finance minister is urging the international community to quickly follow through on pledges of cash to battle Ebola. Bodies are piling up in the capital Monrovia as the nation awaits more help. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Ebola Doctor Says Border Controls Critical

Ebola Doctor Says Border Controls Critical

AP (Sep. 22, 2014) A Florida doctor who helped fight the expanding Ebola outbreak in West Africa says the disease can be stopped, but only if nations quickly step up their response and make border control a priority. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Global Ebola Aid Increasing But Critics Say It's Late

Global Ebola Aid Increasing But Critics Say It's Late

Newsy (Sep. 21, 2014) More than 100 tons of medical supplies were sent to West Africa on Saturday, but aid workers say the global response is still sluggish. Video provided by Newsy
Powered by NewsLook.com
Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) Video provided by AP
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