Some infertile couples are affected by conditions that prevent the sperm and egg from traveling through a fallopian tube, where fertilization and the first stage of cell division take place. The following are assisted reproductive technology (ART) procedures that are rarely used but may improve the chances of conception in the fallopian tubes. The first step of each of these treatment cycles is superovulation, the stimulation of multiple egg production with a series of hormone injections.

Zygote intrafallopian transfer (ZIFT) combines in vitro fertilization (IVF) and GIFT. Eggs are stimulated and collected using IVF methods, then mixed with sperm in the laboratory. Fertilized eggs (zygotes) are then laparoscopically returned to the fallopian tubes where they will be carried into the uterus. The goal is for the zygote to implant in the uterus and develop into a fetus.

The treatment process

For ZIFT, in vitro fertilization is performed. The resulting fertilized eggs (zygotes) are injected into the fallopian tubes in the same way that GIFT is done. The zygotes then travel into the uterus, where it is hoped that they will implant and develop.

REFERENCE

Bets Davis, MFA.(2008).Gamete and zygote intrafallopian transfer (GIFT and ZIFT) for infertility(Online).Available :http://www.webmd.com/infertility-and-reproduction/gamete-and-zygote-intrafallopian-transfer-gift-and-zift-for-infertility[2011,Feburary 2]