Difference Between ZIFT And GIFT

What Are Assisted Reproductive Technologies (ART)?

Assisted Reproductive Technologies refer to treatment strategies applied in medicine to treat infertility. The technologies may involve interventions to manipulate eggs, sperm, or embryos to assist individuals and/or couples in achieving pregnancy. ART may be the hope for those individuals or couples who are far from pregnancy due to a bad natural conception process. ZIFT, standing for Zygote Intrafallopian Transfer

Table Difference Between ZIFT And GIFT

Zygote Intrafallopian Transfer (ZIFT)

This is where a zygote is transferred to a fallopian tube to allow the zygote to implant towards the uterus.

• IVF: Eggs are removed from a woman's ovary and are married with a sperm in the laboratory.

• Zygote Formation: After sperm has fertilized, the ova form a zygote.

• Transfer to fallopian tube: The zygote is then transferred to the fallopian tube using a catheter.

• Success rate: Usually 30 to 40 per cent; however, it may vary according to age and other relevant factors.

• Ideal candidates: candidates with either blockage or damage of fallopian tubes or failed other methods of A.R.T.

• Merits: better control over the process of fertilization; tubal problems can be avoided

• Demerits: an invasive method; that adds up towards a higher cost; surgical recovery of the eggs is required.

Gamete Intrafallopian Transfer (Gift)

The gamete intrafallopian transfer (GIFT) procedure involves transferring ova and sperm into the fallopian tubes so fertilization can take place naturally.

• Collection of egg and sperm: Ova are collected from the ovaries and sperm is collected from the male.

• Direct transfer: Both ova and the sperm are directly transferred into the fallopian tubes using a catheter.

• Pregnancy Rates: About 20-30%, depending upon the female's age and cause of infertility.

• Ideal Candidates: Women having at least one normal functioning fallopian tube. Women with no severe male infertility problems.

• Benefits: Least invasive than ZIFT; more natural process of fertilization.

• Limitations: needs at least one functioning fallopian tube; Less control in the process of fertilization.

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