Weight loss may be beneficial prior to infertility treatment

17 July 2013

Women who are undergoing infertility treatment may want to consider improving their weight first, as a study has linked obesity to lower rates of embryo implantation in the womb.

Scientists at the Instituto Valenciano de Infertilidad in Spain analysed the outcomes of almost 10,000 first cycles of egg donation treatment that were performed between 2000 and 2011.

They discovered that obese women's wombs were less receptive to embryo implantation, making the chances of a successful conception and subsequent pregnancy less likely.

Increased BMI was also associated with lower rates of twin pregnancies and live births.

For instance, the live birth rates for normal-weight and obese women were 37.9 per cent and 27.7 per cent, respectively.

The findings were presented at the annual meeting of the European Society of Human Reproduction and Embryology by gynaecologist Dr Jose Bellver.

He said: "Based on our results, the chance of having a baby by egg donation is reduced by around one-third for obese women.

"More specifically, we found that obese recipients of eggs from normal weight donors had a 23 per cent lower implantation rate than normal-weight recipients, 19 per cent lower clinical pregnancy rate and 27 per cent lower live birth rate."

Posted by Philip Briggs


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