Advertisement
 

doctorslounge.com

 
Powered by
Careerbuilder

 

                    Home  |  Forums  |  Humor  |  Advertising  |  Contact
   Ask a Doctor

   News via RSS

   Newsletter

   Fertility

   News

 

 Conferences


   CME

   Forum Archives

   Diseases

   Symptoms

   Labs

   Procedures

   Drugs

   Links
   Specialties

   Cardiology

   Dermatology

   Endocrinology

   Fertility

   Gastroenterology

   Gynecology

   Hematology

   Infections

   Nephrology

   Neurology

   Oncology

   Orthopedics

   Pediatrics

   Pharmacy

   Primary Care

   Psychiatry

   Pulmonology

   Rheumatology

   Surgery

   Urology

   Other Sections

   Membership

   Research Tools

   Medical Tutorials

   Medical Software

 

 Headlines:

 
 

Back to Fertility Articles

Submit your own articles or thesis

Thursday 2nd December, 2004
 

Results showed that there were nearly as many deliveries in both women who received one embryo at a time and those who received multiple embryos.

 
 

tellfrnd.gif (30x26 -- 1330 bytes)send to a friend
 
prntfrnd.gif (30x26 -- 1309 bytes)printer friendly version
 
 
 
 
  Related
 
  Decline in multiple-infant pregnancies resulting from assisted reproduction  
   
 
     

Nearly as many women who received only one embryo at a time gave birth as women who received two embryos. At the same time the risk of giving birth to twins is minimized. These are the findings of a major study from the Sahlgrenska Academy, at G?eborg University in Sweden.

In-vitro fertilization, IVF, is a successful method to help childless couples to become parents. To maximize the chance of pregnancy, physicians have generally reintroduced more than one embryo. This has led to a considerably larger proportion of multiple births compared with spontaneous pregnancies. Multiple birth means two or more children in the same pregnancy, most often twins. Expecting more than one child entails greater risk. These children are often born prematurely and often have low birth weight. To reduce the number of pregnancies with more than one child, the Swedish National Board of Health and Welfare recommends that only one embryo be transferred at a time.

In the world's largest controlled study, scientists at the Sahgrenska Academy in Gothenburg have compared deliveries in two groups of women who underwent IVF. Half of the women first had one embryo transferred. If it did not develop, they received a second embryo that had been kept frozen until it was reintroduced. The other half of the women received two embryos from the beginning. The study comprised 661 women under the age of 36 from 11 clinics in Scandinavia.

"The results show that there were nearly as many deliveries in both groups: 42.9 percent of the women in the two-embryo group gave birth, compared with 38.8 percent of the single-embryo group," says Professor Christina Bergh and specialist physician Ann Thurin, who were in charge of the study.

The great benefit is that the proportion of deliveries with twins or more siblings was minimal in the group of women who received one embryo at a time. "In the single-embryo group, 0.8 percent of the deliveries were multiple, compared with 33.1 percent of deliveries in the two-embryo group," say the researchers.

In Scandinavia single-embryo reintroductions are already a routine at many clinics. "The study findings will hopefully hasten developments toward the introduction of one embryo at a time in other parts of the world," says Christina Bergh.

 

"In the single-embryo group, 0.8 percent of the deliveries were multiple, compared with 33.1 percent of deliveries in the two-embryo group."

   

The studies findings are being published on December 2. 2004, in the prestigious American medical journal The New England Journal of Medicine.

Brief facts about IVF/In-Vitro Fertilization In IVF eggs are taken from the woman's ovaries. The eggs are placed in a nutrient solution together with sperm. Those eggs that become fertilized can be returned to the woman and develop there into a fetus. Embryos of good quality can be preserved frozen and be transferred to the woman in the same way, after thawing.

The world's first successful IVF was carried out in the United Kingdom in 1978, and since then around one million IVF children have been born around the world. Scandinavia's first successful IVF was performed at Sahlgrenska Hospital in Gothenburg in 1982. In Sweden some 2,500 children per year are born as a result of successful IVF-treatment.

Sources

Thurin et al., The New England Journal of Medicine, Dec. 2, 2004; vol 351: pp 2392-2402.

advertisement.gif (61x7 -- 0 bytes)
 

Are you a doctor or a nurse?

Do you want to join the Doctors Lounge online medical community?

Participate in editorial activities (publish, peer review, edit) and give a helping hand to the largest online community of patients.

Click on the link below to see the requirements:

Doctors Lounge Membership Application


Author: [neurology/articles/alzheimer_drug/includes/author.htm]
 

 advertisement.gif (61x7 -- 0 bytes)

 

 



We subscribe to the HONcode principles of the HON Foundation. Click to verify.
We subscribe to the HONcode principles. Verify here

Privacy Statement | Terms & Conditions | Editorial Board | About us
Copyright 2001-2012 DoctorsLounge. All rights reserved.