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Success rates of infertility treatment

Success Rate and Risks of Fertility Treatment

Success Rate for Artificial Insemination - IVF/ICSI (intracytoplasmic sperm injection)

The success rate of in vitro fertilisation combined with an ICSI depend heavily on the woman’s age and health. Success rate is defined as the pregnancy rate per embryo transfer. It should be noted that during the IVF treatment, it is often the case that enough embryos are retrieved for two embryo transfers (a transfer of a fresh embryo and a transfer of a frozen embryo, using previously cryopreserved embryos). We would also like to point out that the pregnancy rate is different from the birth rate. The pregnancy rate for fresh embryo transfer is approximately 30% while the pregnancy rate for frozen embryo transfer is approximately 25%. The success rate depends on the woman’s age. With increasing maternal age, the chances of pregnancy decrease progressively despite fertility treatments. Pregnancy rates for women who are under 35 and in good health are significantly higher at approximately 50%.

Fertility treatments at FertiCare clinic are often more successful than the natural pregnancy rates across all age groups.

IVF and ICSI (intracytoplasmic sperm injection) risks

Artificial insemination is associated with the same risks as natural pregnancy:

  • Ectopic pregnancy: Even if the embryo is implanted in the womb, ectopic pregnancy may occur due to embryo migration. Close monitoring during the whole process of fertility treatment, however, allows for the early detection and treatment of ectopic pregnancies.
  • Miscarriage: 10-15% of all pregnancies end in miscarriage. With IVF, the risk is approximately 15-30%, which can be explained by the higher average maternity age.

Hormone treatment during IVF stimulates follicular development. One or two embryos are transferred per transfer. This procedure increases the chances of pregnancy but it may be connected with the following side effects:

  • Ovarian Hyperstimulation Syndrome (OHSS): Hormonal stimulation can trigger ovarian hyperfunction, resulting in liquid collecting in the abdomen and causing severe abdominal pain. The risk of OHSS, however, is only around 2%.
  • Multiple pregnancy: If two to three fertilised egg cells are transferred during IVF, the likelihood of multiple pregnancy increases. Twins are born in 15-25% of cases and triplets in 3% of cases.