Which ART procedure aims to fertilize thawed oocytes and perform an embryo transfer?

Which ART procedure aims to fertilize thawed oocytes and perform an embryo transfer?

• A. GIFT
• B. Frozen-thawed oocyte cycle
• C. Frozen-thawed embryo transfer (FET) cycle
• D. Freeze-all cycle

Answer: (B)

The situation described focuses on using oocytes that have been frozen and then fertilizing them in the lab to create embryos for transfer. This is the frozen-thawed oocyte cycle. In this approach, previously stored oocytes are thawed, fertilized via in vitro fertilization, and the resulting embryos are transferred to the uterus. GIFT involves placing oocytes and sperm directly into the fallopian tubes, not fertilizing thawed oocytes in the lab for embryo transfer. Frozen-thawed embryo transfer cycles use embryos that have already been created and frozen, not oocytes. Freeze-all cycles freeze all embryos and delay transfer, rather than fertilizing thawed oocytes in the lab.

The situation described focuses on using oocytes that have been frozen and then fertilizing them in the lab to create embryos for transfer. This is the frozen-thawed oocyte cycle. In this approach, previously stored oocytes are thawed, fertilized via in vitro fertilization, and the resulting embryos are transferred to the uterus.

GIFT involves placing oocytes and sperm directly into the fallopian tubes, not fertilizing thawed oocytes in the lab for embryo transfer. Frozen-thawed embryo transfer cycles use embryos that have already been created and frozen, not oocytes. Freeze-all cycles freeze all embryos and delay transfer, rather than fertilizing thawed oocytes in the lab.