偶看新闻东莞厚街会展中心地址:2 attempts with IVF may be all it’s worth
来源：百度文库 编辑：偶看新闻 时间：2024/05/03 15:21:00
2 attempts with IVF may be all it’s worth
By Alicia Chang
Associated Press / October 28, 2010
LOS ANGELES — More tries aren’t necessarily better when it comes to in vitro fertilization.
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New research found that about 1 in 3 women had a baby the first time they tried a test tube embryo, and that improved to nearly 1 in 2 with a second try.
However, undergoing a third cycle boosted success rates very little and leveled off with subsequent attempts.
“Don’t quit if the first cycle isn’t successful. Your chances go up with the second cycle,’’ said lead researcher Barbara Luke of
In vitro fertilization involves mixing egg and sperm in a laboratory dish. The resulting embryo is then transferred into the womb to grow into a baby. Earlier this month, British researcher Robert Edwards was awarded the Nobel Prize in medicine for pioneering the technique that has led to 4 million test tube babies.
Infertility treatment is expensive. The average cost for an IVF cycle is about $12,400, according to the American Society of Reproductive Medicine. Some insurance companies cover it.
Desperate couples often try over and over to conceive, and there are no ethics standards on when doctors should stop helping them try. Fertility clinics report success rates based on the number of cycles attempted, but that doesn’t indicate how likely an individual woman is to get pregnant with each IVF cycle she undergoes.
The new study is the first to examine that nationally.