What is zygote intrafallopian transfer?

ZIFT. Zygote intrafallopian transfer (zift) is a surgical, laparoscopic, procedure where a zygote is placed in the female's fallopian tube. The zygote continues to grow and migrates to the uterine cavity where it implants.
Embryo into tube. Zygote intrafallopian transfer (zift) is placement of an embryo into the fallopian tube, usually under laparoscopic guidance. Zift is now rare, since fertility specialists tend to avoid the risks associated with surgery, and lab culture techniques have improved so that embryos can be grown to advanced stages in the ivf lab.

Related Questions

What is involved in zygote intrafallopian transfer (zift)?

ZIFT. Zygote intrafallopian trasfer (zift) is a laparoscopic surgical procedure where zygotes are placed in the fallopian tube of the female partner. The zygote will continue to grow and eventually migrate to the endometrial cavity to implant.

Who could benefit from zygote intrafallopian transfer?

Old treament. Zift, or zygote intrafallopian transfer is an old technology that is no longer in use. It is more invasive than routine ivf because it requires abdominal surgery (laparoscopy) and pregnancy rates are lower.
Not indicated. Zift is rarely done now. Improvements in lab culture techniques have improved implantation and pregnancy rates with ivf, so zift is rarely helpful.

Who is not a suitable candidate for zygote intrafallopian transfer?

Older procedure. Zygote intrafallopian transfer (zift) is an older procedure which has been replaced by the current in vitro fertilization and embryo transfer techniques utilized these days. Zift requires normal fallopian tubes.
ZIFT candidate. Embryos live best in the environment of the tubes which act as natural incubators. For women older than 42, ivf may not offer much advantage over the natural cycle. Some studies had shown that placing embryos (zift) or the sperm and eggs (gift) into the distal tubes could yield higher live birth rates than ivf. For most patients, however, ivf is more cost effective than zift or gift.

Can you tell me how zift differ from gift?

Embryo. Z is zygote and G is gamete (egg or sperm). ZIFT already contains the fertilized egg. Both techniques essentially were replaced by IVF and normal uterine embryo transfer 15 years ago. Unless there is no way to get an embryo into your cervix and into the uterus (severe scarring, permanent cerclage, etc), normally those would never be used anyway.

Who does zift?

Early embryo in tube. Zift is zygote intrafallopian tube transfer. It's a procedure where sperm fertilizes an egg in a dish. The embryologist gives the resulting fertilized egg (zygote) to a fertility specialist who in turn surgically transfers the zygote into the fallopian tube.
Early embryo in tube. Zift is zygote intrafallopian tube transfer. It's a procedure where sperm fertilizes an egg in a dish. The embryologist gives the resulting fertilized egg (zygote) to a fertility specialist who in turn surgically transfers the zygote into the fallopian tube. Hardly ever done any more.

Do they do zift in us?

Early embryo in tube. Zift is zygote intrafallopian tube transfer. It's a procedure where sperm fertilizes an egg in a dish. The embryologist gives the resulting fertilized egg (zygote) to a fertility specialist who in turn surgically transfers the zygote into the fallopian tube. Hardly ever done any more.
Yes, but rarely. It's done but in most circumstances it's been overtaken by ivf. Zift is rarely done.

What was the problem with zift?

Rarely used any more. Zift is / was more invasive than ivf because it requires laparoscopy to transfer the zygotes into the woman's tube. Compared with modern ivf (in vitro fertilization) zift has lower success rates, has less ability to select the 'best' embryos, and depends on the tubes being fairly functional. These are all reasons why it has been superseded by ivf.