The survival rate of fetuses in multiple pregnancies reached 83 percent, much higher than singleton pregnancies that only 76 percent, the findings of Spanish researchers revealed a stronger embryos role in twin pregnancies in helping to "twin" of the weaker to survive.
This was apparent in twin pregnancies created through in vitro fertilization (IVF). In statistical analysis, the number of multiple births in twin pregnancies is higher than expected. In contrast, the number of single births is much lower.
As a result, as published in the journal Obstetrics and Gynecology, weak embryo that will fail if the development itself somehow received support from a stronger twin.
Though many other studies have found evidence that twin pregnancies result in live birth rate is higher, the concept of "aid embryo" is encountered resistance from the expert who was not involved in recent research.
"The authors have offered an interesting hypothesis," said Dr. Alan B. Copperman, director of reproductive endocrinology at Mount Sinai School of Medicine in New York, United States.
"But their data are not sufficient to overturn our understanding that the implantation of the embryo occurs independently. And We have no evidence that embryos are individually 'help' others," says Copperman.
He said the number of babies resulting from IVF process only 1 percent of total births in the United States each year. But the IVF technique is responsible for 17 percent of twin births.
In the practice of plural IVF performed in Uncle Sam's country, physicians are often "grow" more than one embryo to increase the chances of pregnancy. American Institute for Reproductive Medicine recommends that the number of embryos implanted in women aged under 35 years should not be more than two. "Physicians should consider using only one (embryo)." *** [WW JOURNALS | REUTERS HEALTH | MAHARDIKA SATRIA HADI | KORAN TEMPO 3755]
This was apparent in twin pregnancies created through in vitro fertilization (IVF). In statistical analysis, the number of multiple births in twin pregnancies is higher than expected. In contrast, the number of single births is much lower.
As a result, as published in the journal Obstetrics and Gynecology, weak embryo that will fail if the development itself somehow received support from a stronger twin.
Though many other studies have found evidence that twin pregnancies result in live birth rate is higher, the concept of "aid embryo" is encountered resistance from the expert who was not involved in recent research."The authors have offered an interesting hypothesis," said Dr. Alan B. Copperman, director of reproductive endocrinology at Mount Sinai School of Medicine in New York, United States.
"But their data are not sufficient to overturn our understanding that the implantation of the embryo occurs independently. And We have no evidence that embryos are individually 'help' others," says Copperman.
He said the number of babies resulting from IVF process only 1 percent of total births in the United States each year. But the IVF technique is responsible for 17 percent of twin births.
In the practice of plural IVF performed in Uncle Sam's country, physicians are often "grow" more than one embryo to increase the chances of pregnancy. American Institute for Reproductive Medicine recommends that the number of embryos implanted in women aged under 35 years should not be more than two. "Physicians should consider using only one (embryo)." *** [WW JOURNALS | REUTERS HEALTH | MAHARDIKA SATRIA HADI | KORAN TEMPO 3755]
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