Dizygotic twin survival in early pregnancy

Stephen Tong (), Simon Meagher and Beverley Vollenhoven
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Stephen Tong: Monash University, Monash Medical Centre
Simon Meagher: Monash Ultrasound for Women, Monash IVF, Epworth Hospital
Beverley Vollenhoven: Monash University, Monash Medical Centre

Nature, 2002, vol. 416, issue 6877, 142-142

Abstract: Abstract It has been suggested that losses of twin conceptuses in very early pregnancy are high, and that for every liveborn twin pair there are a further 10–12 twin pregnancies that end up as a singleton birth1. Here we show that in a group of women who had double-ovulated and conceived, the probability of the second egg also becoming fertilized and developing is 20–30% — which is comparable to the probability of conception and survival of a single conceptus2. We conclude that the presence of one embryo does not affect the development of its twin.

Date: 2002
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DOI: 10.1038/416142a

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