Women 40 & Over

Zift (zygote intra-fallopian tube transfer) and pregnancies in women over 40

The increased rate of infertility and miscarriage seen in women over 40 years of age is primarily due to chromosomal errors that occur during egg and embryo development. Growing embryos in the artificial environment of the IVF laboratory puts further stress on developing embryos. We recently implemented our ZIFT program in women over 40. In this procedure, embryos are transferred to the fallopian soon after fertilization so that they can grow in their natural environment.

Our results with ZIFT and early intrauterine transfer have led to ongoing pregnancies in approximately 60% of the first 7 women treated in this manner.

ZIFT is also a viable alternative to those women who have encountered multiple IVF failures.