New study sheds light on ideal embryo implantation methods

A new study has revealed new insights into the best embryo implantation methods for women undergoing assisted conception.

New research by the University of Bristol has aimed to shed light on the controversial issue of how many embryos should be implanted during therapy to achieve the greatest chance of a successful live birth.

Analysing 124,148 IVF cycles overall, it was found that the live birth rate was greater with the transfer of two embryos than one among both over-40s and under-40s, whereas the use of three or more embryos was shown to carry considerable risks.

It was also found that liver birth rates were significantly lower among older women, regardless of the method of implantation used.

Authors said: "We conclude that no more than two embryos should be transferred into women of any age, but greater freedom should be given to clinicians and patients to decide whether to transfer one or two embryos."

According to the British Fertility Society, common complications associated with assisted conception include ovarian hyperstimulation syndrome, pelvic infection and multiple pregnancy.