How are zygotes transferred to fallopian tubes?

Zygote intrafallopian transfer (ZIFT) is one of the rarely practised methods of assisted reproductive technology. If a couple opts to undergo ZIFT, as part of their attempts to parent a child, the medication starts by helping the woman to produce mature egg. Before her body naturally release the eggs, the gynaecologist will have made arrangements to retrieve them safely. These medications will be administered only after subjecting anaesthesia on the concerned woman. The retrieved eggs are then taken to set laboratories where they get artificially combined with the sperm cells collected from her spouse. They will be left overnight to fertilise under laboratory conditions.

Roughly after a day, the fertilised eggs will be relocated into the woman’s womb through a laproscopic surgery. As part of this surgery, a small cut will be made beneath the woman’s navel through which a thin tube will be put in. It is through this tiny tube that the fertilised eggs are deposited inside the fallopian tube. The number of transferred fertilised eggs, which are now embryos, ranges from one to four. From then on, the fertilised eggs undergo natural process of conception. As in the ordinary case, the fertilised egg move on its own to the uterus through the fallopian tubes.

ZIFT is not found to be effective in such women who have a history of tubular pregnancy. Women who have irregularities in their fallopian tubes also should not opt for zygote intrafallopian transfer. The major prerequisite for undergoing ZIFT is that you should have at least one fully functional fallopian tube. The sperm count of your spouse also should be decent, even if not adequate. It is advisable for men with extremely low sperm count to make use of intracytoplasmic sperm injection before letting their spouse undergo zygote transfer. On an average it is considered that thirty six per cent of women who undergo this treatment are impregnated. Among them, only twenty nine per cent delivers live babies. Moreover, in this method, there is an increased risk for ectopic pregnancies.



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