Zygote Intra-fallopian Transfer (ZIFT)

ZIFT is a technique that combines IVF (In Vitro Fertilization) with a tubal transfer. ZIFT stands for "Zygote Intra-Fallopian Transfer. Zygotes (i.e., fertilized eggs prior to cell division) are placed via catheter directly into the women's fallopian tubes. This usually involves a minor surgical procedure that allows you to go home the same day with a minor degree of pain.

ZIFT allows fertilized eggs to make their way to the uterus for implantation according to a normal timetable. In contrast, IVF places fertilized eggs (embryos) direcdy into the uterus. The success rate for ZIFT is higher than with standard IVF, but it can only be performed if the woman has normal fallopian tubes.

ZIFT allows couples with serious male factor infertility (eg., low sperm count, motility or poor quality) the advantage of a tubal tansfer when it is combined with the ICSI fertilization procedure. Its advantage over TET is that ZIFT allows for earlier freezing of surplus fertilized eggs that can be used for future attempts at pregnancy. The earlier these fertilized eggs are frrozen the more likely they are to survive the thawing process.


In a fertile couple, pregnancy begins with the release of an ovum (egg) from the woman's ovaries. The egg enters the fallopian tube where it meets with the sperm that have travelled there, following intercourse, from the vagina. The sperm normally fertilize the egg in the fallopian tube. The feftilized egg, now called an embryo, begins to divide and in four days contains many cells. At this time, the embryo moves from the fallopian tube to the uterine cavity where it "floats" for another two to three days. The embryo then implants in the uterine wall with a resultant pregnancy.

ZIFTs major advantages over IVF is that the technique allows the body to nurture the embryos in the more natural environment of the fallopian tubes, while also ensuring that they will enter the uterine cavity at the optimal time for implantation. ZlFTs advantage over GIFT is the opportunity to absolute that fertilization took place.

Contact our clinic for more information or to arrange a consultation appointment to see at ZIFT or one of our many other procedures will help you fulfill your dream of parenthood.
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