Percentage of success of in vitro fertilization (fiv)

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When we talk about the result of in vitro fertilization (IVF) we must determine what we mean. There are those who indicate pregnancy rate based on a positive result of the beta-hCG test, but really success is not achieving pregnancy but the birth of a healthy child.

Next you have an index with all the points that we are going to treat in this article.

Index

Success rate of in vitro fertilization (IVF)

The success of IVF is determined by different factors such as the age of the patient, the quality of the embryos , the cause of infertility , the IVF technique applied, the number of embryos transferred, etc.

The result of an IVF

Generally, we can say that the probability of giving birth after an IVF cycle is approximately the following:

  • 20-25% in women under 35 years.
  • Between 15-20% in women between the ages of 35 and 39.
  • Between 6-10% in women over 40 years.

Factors that influence the outcome of IVF

We distinguish the probability of pregnancy according to the age of the patient, because this is one of the factors that most influences the outcome of an assisted reproduction treatment.

However, there are many other things to keep in mind to determine the success of IVF. Some examples are:

  • Sperm quality: some semen alterations such as asthenozoospermia or teratozoospermia can make fertilization difficult. In these cases, ICSI may be the solution.
  • Egg quality: the age of the woman decreases the ovarian reserve, which refers to the quantity and quality of the eggs.
  • Freeze of ovules or embryos: the process of cryopreservation that usually is applied is the vitrification, as much of ovules as of embryos. Although this freezing procedure has high survival rates, it can affect the quality of the eggs and embryos and thus the result of IVF.
  • Embryonic selection: it is essential to classify the embryos properly according to their quality and to choose for the transfer the one that presents, on the basis of this classification, the greatest implantation potential.
  • Number of embryos transferred: transferring more than one embryo can increase the probability that at least one of them implants in the mother's womb and from place to place. However, this also increases the rate of multiple pregnancy. This type of pregnancy presents greater risks both fetal and maternal compared to single pregnancy.
  • IVF technique applied: we can apply conventional IVF or ICSI. There are cases where it will be recommended to apply one or the other to be successful.
  • Cause of Infertility: Depending on the fertility problem for which IVF is needed, the probability of pregnancy will be higher or lower. For example, if we are faced with a case of severe endometriosis, it is quite possible that pregnancy, even when applying IVF, is complicated. Conversely, if infertility does not come from low seminal mobility, the ICSI procedure will allow pregnancy.
  • Qualities of the uterine cavity: although with IVF we achieve the fertilization and creation of viable embryos, if there is any alteration or malformation in the uterus of the future mother, it will be complicated for the embryos to implant and to achieve evolution.
  • Fertility clinic where the technique is performed: each reproductive center has a different working protocol. In addition, the experience of embryologists is critical in the success of treatment.
  • Medication protocol administered in the process of ovarian stimulation and endometrial preparation: the hormones the patient receives may influence the ovarian quality and characteristics of the uterus at the time of transfer.

As we see, there are many factors that, individually or collectively, can influence the outcome of IVF. For this reason, it may happen that after a first failed IVF pregnancy is achieved in successive attempts due to the improvement of some of these aspects.

Assisted Reproduction ORG has obtained agreements with Spanish clinics to offer you a first free visit and a reduced price on treatments. You can get all the information in the following link: See discounts in IVF / ICSI fertilization.

Low ovarian reserve

One of the most important factors in achieving pregnancy is the age of the expectant mother.

With the passage of time, the ovarian reserve of women is waning and therefore their reproductive potential is less. In addition, especially since the age of 40, the probability of chromosomal alterations in the embryos is greater, which may prevent not only the pregnancy but also that it evolves favorably.

Donation of eggs in cases of low ovarian reserve

Reproductive medicine offers several alternatives to the cases of advanced women who seek pregnancy and do not achieve it with their own eggs: ovodonation.

It is a question of performing an in vitro fertilization using donor eggs. The pregnancy rate regardless of the patient's age increases considerably, reaching up to approximately 40%. The main reason is that donated eggs come from girls under the age of 35.

Although age in men does not affect the IVF outcome equally, there is also the option of using donor semen. In cases of severe male infertility, it may mean the success of IVF treatment.

User questions

Is it easy to achieve the success of in vitro fertilization at first?

As we have commented in the article, the result of the IVF depends on numerous factors therefore, according to them, will be more or less probable to obtain the pregnancy in the first attempt.

There are women and couples who achieve gestation quickly while others need two, three or four IVF treatments to achieve pregnancy.

Can I get pregnant by IVF if I am 39?

The age of women is a factor that greatly influences the success rate of IVF since over time, the ovarian reserve of women decreases, especially after 35 years.

Although with 39 years the natural pregnancy is complicated, with IVF is possible. The probability of success will depend fundamentally on the quantity and quality of the eggs.

When is the beta result after IVF reliable?

Usually it is indicated to wait at least 15 days from the transfer of the embryos to obtain a reliable result of the pregnancy test. However, there are cases, for example when transferring blastocysts, in which the test can be reliable only 10 days after the transfer.

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