Success Rates

In Vitro Fertilization Success Rates for 2011

Treatment Type               Pregnancy Rate (CPR*)

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Blastocycst (day five) Embryo Transfer

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Under 35 years: 72%

Under 40 years: 58%

Donor Egg: 71%

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IVF and ICSI Combined

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Under 35 :  51%

35-37 : 44%

38-40 : 35%

41 and over

All           14%

Four embryos for transfer 25%

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Frozen Embryo Transfer

All ages                 32%

* Clinical Pregnancy rate per embryo transfer

Understanding Assisted Reproductive Techniques (ART) Success Rates

What are the chances of success for a couple having IVF treatment? This may seem like a simple question, but trying to interpret success rates from IVF units can get confusing! Below are some simple tips:

• There are different ways to quote IVF success rates. For simplicity, most IVF units refer to clinical pregnancy rates (CPR) which includes a pregnancy only when there is a fetal heart beat present on ultrasound.

• Because the age of the woman affects the success rate immensely, for comparison purposes it is normal to try to compare women of similar ages.

• When comparing one IVF center to another, the best way to standardize is to compare women in the younger age ranges, as the impact of age may affect success rates dramatically. Hence the "under 38 year old" success rate is often used when trying to interpret different outcomes between one center versus another.

Interpretation of Above Success Rates

The success of your treatment depends on many factors and your specific treatment options. General IVF success rates can be misleading because they do not take into account the individual patient and her situation. ART procedures and success rates have dramatically increased worldwide since IVF began, but there are still many hurdles to cross during a treatment cycle. For instance, your chance of success needs to take into consideration:

• Age of the female partner
• Quality of the sperm
• Quality and number of eggs retrieved
• Reason and duration of infertility
• Quality control in the laboratory
• Skill and competence of the IVF team

Your IVF medical team at Barbados Fertility Centre can talk you through all the details of your specific treatment. We will be able to assess your individual case and give you a projected success rate that is applicable to you.

Going through an IVF cycle involves substantial commitment of time, energy, finance and emotional input. Therefore, we will provide all the information necessary to assist you in making an informed decision. This includes medical, psychological, financial and statistical data.

There are a number of reasons why a cycle may be cancelled or not completed in full, which is another detail your medical team will counsel you about in more detail.

For more information, please contact us.