American fertility doctors aim to lower rate of twin births


In the five years since the "Octomom" case, big multiple births have gone way down but the twin rate has barely budged. Now fertility experts are pushing a new goal: One.

A growing number of couples are attempting pregnancy with just a single embryo, helped by new ways to pick the ones most likely to succeed. New guidelines urge doctors to stress this approach. Twins aren't always twice as nice; they have much higher risks of being born premature and having serious health problems. Nearly half of all babies born with advanced fertility help are multiple births, new U.S. federal government numbers show.

Abigail and Ken Ernst, from New Jersey, used the one-embryo approach to conceive Lucy, a daughter born in September. It "just seemed the most natural way" to conceive and avoid a high-risk twin pregnancy, the new mom said. Not all couples feel that way, though. Some can only afford one try with in vitro fertilization, or IVF, so they insist that at least two embryos be used to boost their odds, and view twins as two for the price of one.

 

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資料來源:http://chinapost.com.tw/guidepost/topics/default.asp?id=4036&next=1&sub=4

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