“Twins” born years apart…

Every so often there’s an article like this one in today’s Guardian, about “twins” born years apart… The writer of this piece has a son and daughter born as a result of one fresh IVF cycle and a further frozen embryo transfer from the same batch of embryos.

It is a fortunate, yet far from uncommon, experience after fertility treatment, but it doesn’t make the children “twins”. Twins are two babies who are carried together and born at the same time, which these children were not. They are siblings rather than twins.

The Guardian seem to specialise in this myth – here are some previous twins who were born five years apart, although at least that time they called them “twins” in the headline…  Those were also covered by the Telegraph. And unsurprisingly the Daily Mail likes them too – these brothers born two years apart are “technically” twins according to the Mail – in fact, they are technically not twins. It is always made to sound as if it is some extraordinary and highly unusual matter, yet there are hundreds of thousands of siblings around the world who will have been conceived in a similar way.

Maybe I’m getting pedantic in my old age…

Fertility trial open to people on 2nd and 3rd cycles

Often fertility trials are only open to those who are going through their first cycle of IVF treatment, but the E-Freeze trial is now also taking patients who are having their second or third treatment cycles.

E-Freeze is investigating the theory that using frozen thawed embryos may lead to improved pregnancy rates. When frozen embryos are used, there is a delay in embryo transfer of at least a month, and the theory is that allowing the hormones used in ovarian stimulation to wear off and giving the womb time to return to its natural state may increase the chances of success.

Without more research we cannot say if fresh or frozen thawed embryo transfer is better for the first cycle of fertility treatment. E-Freeze will compare these two types of embryo transfer in more than a thousand couples from IVF centres throughout the UK to find out which, if any, gives the best chance of having a healthy baby.

If you are interested in taking part, you can find lots of information about the trial on the E-Freeze website and a list of all the participating centres.