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Children from frozen embryos do well

Catherine McDiarmid-Watt | Friday, July 11, 2008 | 0 comments

Picture by ranger413_3
Children born from frozen embryos weigh more and do better than those born after fresh transfer  Children born from frozen embryos weigh more and do better than those born after fresh transfer

Barcelona, Spain: Children born after a frozen, thawed embryo has been replaced in the womb have higher birth weight than those born where fresh embryos were used, Danish scientists reported to the 24th annual conference of the European Society of Human Reproduction and Embryology today (Tuesday 8 July). The mothers had longer pregnancies, and the children did not show an increased risk of congenital malformations, said Dr. Anja Pinborg, from the Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.

Biological Science via EurekAlert! @ 11:47 8th Jul - Related


Babies From Frozen Embryo Just As Healthy: Study

Published on July 9, 2008

Using frozen embryos in place of fresh ones during
IVF procedures produces healthier babies with higher birth weight and lesser abnormalities, a new Danish study reports.

The findings of the study presented at a meeting of the European Society of Human Reproduction and Embryology on Tuesday provided strong evidence stating that
babies born from frozen embryos were just as healthy as those conceived naturally.

The team of Danish researchers monitored medical records of nearly over 1,200 children born in Denmark between 1995 and 2006 using frozen embryos technique. Also monitored were nearly 18,000 children born from fresh embryos during the same period.

Upon comparison of medical records between the two groups of
infants born using different techniques, the babies in the frozen embryo group weighed about 200 grams more at time of birth and also had a lesser percentage of pre-term births as compared to the other group, the Danish researchers found.

Also, frozen embryo technique did not increase the risk of congenital birth defects among infants. The congenital birth defects rate in the frozen embryo group was 7.1 per cent compared to 8.8 per cent where fresh embryos had been used. Moreover, fewer newborns required immediate medical support or admission to neonatal intensive care units, researchers found.

"According to this study, which is currently the largest on frozen embryo replacement offspring, these children perform as ... offspring after fresh embryo transplant or even better," the researchers remarked.

‘The strongest embryos survived the freezing process’ researchers of the study said while explaining why frozen embryos produced better results than the ‘fresh’ ones.

Freezing embryos, a well-established form of assisted conception treatment saves eggs for future use. Embryos are stored in liquid
nitrogen at a temperature of minus 196ยบ C for up to five years. Stored at such low temperature they are in a state of suspended animation where all metabolic activity is halted.


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About Catherine: I am mom to three grown sons, two grandchildren and two rescue dogs. After years of raising my boys as a single mom, I remarried a wonderful man who had never had a child of his own. Unexpectedly, I found myself pregnant at 49!
Sadly we lost that precious baby at 8 weeks, and decided to try again. Five more losses, turned down for donor egg, foster care and adoption due to my age and losses - we have accepted that there will be no more babies in our house.

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