Success Rates of In Vitro Fertilization

Consider your chances to have a live baby through In Vitro Fertilization. Check out factors that influence success rates of this procedure.
Success Rates of In Vitro Fertilization

“What is the chance for success?” – This is the question, which appears to be the first one that most people ask. The delivery rate, which is also called “take home baby rate”, should be considered as the only real measure of success. However, every potential intended parent or surrogate mother should be aware that there are clinics, which define the word “success” as any occurred pregnancy, or even any positive pregnancy test without taking into consideration miscarriages or ectopic pregnancies. There is no doubt, that all these so – called “successes” are quite irrelevant to patients, who desire to have a baby through IVF. Anyway, success varies from a number of factors. One of the most important of them is considered to be the age of the surrogate, just as well as the age of the intended mother. As the woman gets older, she has less chance to succeed in In Vitro Fertilization procedure, and the success rate drops drastically after a woman is about thirty seven. This decline partially depends on the lower chance of getting pregnant in the result of Assisted Reproductive Technologies, and partially on a higher risk of miscarriage. Especially it is likely to happen after a woman is forty.

The major hurdles to success are implantation after embryo transfer and early miscarriage. All the factors, which can influence the potential of embryos to get implanted and produce successful pregnancies, are still not investigated completely. As for the rate of early miscarriage it is slightly, however, not significantly, higher with Assisted Reproductive Technologies, in comparison with spontaneous conception.

Therefore, what are the In Vitro Fertilization statistics? In accordance with the data, obtained form the USA Department of Health, the 127,977 Assisted Reproductive Technologies cycles, which were performed by 411 clinics, resulted in 36,760 (delivering one or more living infants) life birth and 49,458 infants. From these data, twin delivery took place in about 30percent of ART all deliveries. And more two babies at one time were delivered in less than 5 percent of cases.

The average clinical pregnancy rate with In Vitro Fertilization cycles, when fresh non – donor eggs or embryos are used is about 33.7 percent and when frozen non – donor eggs or embryos are used is about 27.7 percent per transfer for all age groups, out of which:
  In women who are between twenty – thirty two years old, the average clinical pregnancy rate is about 40 – 42 percent, and live birth rate is about 38 – 40 percent;
  In women, who are between thirty three – thirty four years old, the average clinical pregnancy rate is about 40 percent, and live birth rate is about 38 percent;
  In women, who are between thirty five – thirty six years old, the average clinical pregnancy rate is about 38 percent, and live birth rate is about 35 percent;
  In women, who are more than thirty six years old, the average clinical pregnancy rate begins to decline, and it makes only about 24 - 25 percent, and live birth rate is not higher than 18 – 20 percent;
  In women, who are forty one years old, the average clinical pregnancy rate is about 20 – 22 percent, and live birth rate is about 15 percent;
  And, finally, in women, who are between forty – forty six years old, the average clinical pregnancy declines drastically, and it does not exceed 1 – 10 percent, and live birth weight is only about 0 – 2 percent.

When fresh In Vitro Fertilization cycles are conducted with using donor eggs or embryos, the average live birth rate makes about 51 percent for all age groups, out of which:
  In women who are between twenty – thirty nine years old, the live birth rate is about 50 – 55 percent;
  In women, who are over than forty years old, the live birth rate declines slightly from year to year.
 When frozen In Vitro Fertilization cycles are conducted with using donor eggs or embryos, the average live birth rate makes about 30.5 percent for all age groups.

Considering the Intra Cytoplasmic Sperm Injection success rates are the following:
  In women, who are less than thirty five years old, and who were made ICSI, the live birth rate is about 41.0 percent;
  In women, who are less than thirty five, and who were not made ICSI, the live birth rate is about 42.2 percent;
In women, who are between thirty five – thirty seven years old, and who were made ICSI, the live birth rate is about 35.9 percent;
  In women, who are between thirty five – thirty seven years old, and who were not made ICSI, the live birth rate is about 33.6 percent;
  In women, who are between thirty eight – forty two years old, and who were made ICSI, the live birth rate is about 22.7 percent;
  In women, who are between thirty eight – forty two years old, and who were not made ICSI, the live birth rate is about 25.9 percent;
 In women, who are over than forty two years old, and who were made ICSI, the live birth rate is about 6.1 percent;
  In women, who are over than forty two years old, and who were not made ICSI, the live birth rate is about 5.6 percent;
  In women, who are between forty two – forty six years old, there is a dramatic decline to 1 – 10 percent, and live birth rate makes no more than 2 percent.