These days, Gamete intra-fallopian transfer (GIFT) tends to be reserved for poor prognosis patients and is no longer widely used as an alternative to IVF. The available success rate data are so limited or out-of-date that they cannot act as a reliable guide, but GIFT does carry an increased risk of multiple pregnancy.
The outcome inevitably reflects the patient profiles (particularly age and whether the patients had opted for GIFT for religious, rather than medical reasons) and the number of eggs transferred per cycle.
The current Human Fertilisation and Embryology (HFEA) guidelines state that:
Where a woman is to receive treatment using her own eggs, or embryos created using her own eggs, whether fresh or previously cryopreserved:
This guidance is currently under review and an update is scheduled for late spring.
To balance the risks of multiple pregnancy with the chance of a positive outcome, the following approach is recommended:
To deal with the unacceptably high multiple birth rates following IVF, the HFEA carried out a review and public consultation identifing the most suitable policy for reducing these rates.
"Multiple births as a result of IVF increase the risks of death and disability, not only from the more complex pregnancy and delivery, but also from prematurity. The best way to ensure a healthy baby and avoid the trauma of neonatal intensive care is by single embryo transfer."
Dr Alun Elias-Jones, Consultant Community Paediatrician, Leicester