Which ART method transfers gametes directly into a fallopian tube rather than implanting embryos in the uterus?

Which ART method transfers gametes directly into a fallopian tube rather than implanting embryos in the uterus?

• A. Gamete intrafallopian transfer
• B. Intrauterine insemination
• C. Frozen embryo transfer
• D. Standard IVF with embryo transfer

Answer: (A)

Placing the actual gametes into the fallopian tube is a distinctive ART approach where fertilization is intended to occur in the tube itself. This method, gamete intrafallopian transfer, delivers both oocytes and sperm directly into the fallopian tube, allowing fertilization to happen there and then letting the resulting embryo move to the uterus for implantation. This sits in contrast to intrauterine insemination, which places sperm into the uterus (fertilization would occur later in the tube if at all), or to frozen embryo transfer and standard IVF with embryo transfer, which involve creating embryos in the lab and placing them into the uterus rather than fertilizing in the tube.

Placing the actual gametes into the fallopian tube is a distinctive ART approach where fertilization is intended to occur in the tube itself. This method, gamete intrafallopian transfer, delivers both oocytes and sperm directly into the fallopian tube, allowing fertilization to happen there and then letting the resulting embryo move to the uterus for implantation.

This sits in contrast to intrauterine insemination, which places sperm into the uterus (fertilization would occur later in the tube if at all), or to frozen embryo transfer and standard IVF with embryo transfer, which involve creating embryos in the lab and placing them into the uterus rather than fertilizing in the tube.