Clinical outcomes of pregnancies achieved by microinsemination by sperm transfer.

Micromanipulative techniques such as microinsemination by sperm transfer are evolving as treatment for couples suffering from some forms of male factor infertility where previously donor insemination was the only option. Being a relatively new technology, the numbers of microinsemination by sperm transfer pregnancies that have progressed to term are still small. However, at this time, it would seem that outcome in terms of antenatal complications, gestation length, and birth weight is no different from that seen with conventional IVF. Continuing review of the rate of congenital malformation in microinsemination by sperm transfer progeny seems warranted.