Between IVF and GIFT, which has a higher success rate per egg retrieval?

Between IVF and GIFT, which has a higher success rate per egg retrieval?

• A. IVF
• B. GIFT
• C. They are the same
• D. Neither has a measurable rate

Answer: (B)

Fertilization location and embryo selection drive how successful a cycle is. In IVF, eggs are retrieved and fertilized in the lab under precise conditions, and embryos are cultured to a stage where the best one can be chosen for transfer. This controlled environment and the ability to select the most viable embryo generally lead to higher pregnancy and live-birth rates per egg retrieval. GIFT involves transferring eggs and sperm into the fallopian tube and relies more on natural fertilization inside the body. It offers less control over fertilization timing and embryo quality, and the procedure is more invasive (often requiring laparoscopy) with fewer opportunities to assess and select the best embryo. These factors typically result in lower success per cycle compared with IVF. So, IVF tends to have a higher success rate per egg retrieval than GIFT.

Fertilization location and embryo selection drive how successful a cycle is. In IVF, eggs are retrieved and fertilized in the lab under precise conditions, and embryos are cultured to a stage where the best one can be chosen for transfer. This controlled environment and the ability to select the most viable embryo generally lead to higher pregnancy and live-birth rates per egg retrieval.

GIFT involves transferring eggs and sperm into the fallopian tube and relies more on natural fertilization inside the body. It offers less control over fertilization timing and embryo quality, and the procedure is more invasive (often requiring laparoscopy) with fewer opportunities to assess and select the best embryo. These factors typically result in lower success per cycle compared with IVF.

So, IVF tends to have a higher success rate per egg retrieval than GIFT.