karyotype

Genetics for analysing pregnancy losses

Pregnancy losses (miscarriages) usually happen as a result of factors in the foetus or in the mother. However, in 50% of cases, the pregnancy losses that happen during the first trimester of pregnancy are caused by chromosomal abnormalities in the embryo and the number of cases are higher number in women of an advanced age. Abnormalities can be […]

2019-08-23T08:46:09+02:0023 de August de 2019|0 Comments

My personal choice to use artificial insemination and become a single mother

I’m not very old but I’m not young enough to just let time go by. I’ve been thinking about this for a long time now. I’ve always wanted to have children. It’s not something I feel I can’t live without but it is something I’d like to do. I’ve been in several relationships but none […]

2019-07-26T08:55:33+02:0026 de July de 2019|0 Comments

What tests do I need to have before in vitro fertilisation treatment (IVF)?

In vitro fertilisationis a procedure that is carried out in an embryology laboratory with the aim of obtaining embryos using female gametes (ova) and male gametes (spermatozoa). The ova and spermatozoa can be retrieved from the patients (the patients’ own gametes) or from female and male donors (donated gametes).

There are many different ways of obtaining embryos which facilitate a […]

2019-07-01T11:19:34+02:0019 de July de 2019|0 Comments

What is embryo collapse? Does it affect how the embryo implants?

Embryo collapse refers to the contractions that are observed in the blastocyst and which have a connection to appropriate embryo development.

Following a number of physical phenomena, there is a build up of liquid in the cavity which ends up forming what we know as the blastocoel. A progressive accumulation of liquid leads to an increase in […]

2019-07-11T13:25:35+02:0011 de July de 2019|0 Comments

Anti-müllerian hormone (AMH) is no longer a crystal ball

Anti-müllerian hormone (AMH) is used in reproductive medicine as an ovarian reserve marker. This hormone is detected using a simple blood analysis and, in conjunction with a follicle count ultrasound scan on the ovaries, it helps us to predict a patient’s response to stimulation. This is mainly true when patients have a limited prognosis.

In any case, despite how […]

2019-07-01T09:02:31+02:005 de July de 2019|0 Comments

Why hasn’t my assisted reproduction treatment worked?

The miracle of conception involves an intimate union between the ova and spermatozoon, appropriate evolution of the fertilised embryo and, furthermore, an ideal environment inside the uterus so that implantation can take place. Whilst this process might seem simple, it is much more complex than we might think, particularly in human beings. Only 30% of our conceptions end in […]

2019-06-13T09:00:34+02:0014 de June de 2019|0 Comments

5 indicators that the time has come to visit a fertility clinic

Infertility was a taboo subject until just a few years ago but nowadays it is common practice to turn to a reproductive medicine clinic for help when women are facing issues having children naturally. Instituto Bernabeu wants to give you a few rules of thumb for knowing when the time has come to visit a fertility clinic. […]

2019-05-17T08:55:21+02:0017 de May de 2019|0 Comments

The link between thrombophilia and recurrent implantation failure

The percentage of pregnancies achieved following assisted reproduction treatment has progressively increased over the years but we still have a long way to go before we achieve optimum results. This is why alternative treatment options that have not already been attempted are taken into account when several courses of treatment have not given a positive result.

It has been […]

2019-03-22T09:45:54+02:0022 de March de 2019|1 Comment

What is the corpus luteum?

After ovulation, follicles transform into the corpus luteum or ‘yellow body’. Corpus luteum development depends on the luteinising hormone (LH) surge before ovulation and on the number of receptors for this gonadotropin in the granulosa cells and in the theca cells.  Both types of cells go through significant changes in structure and composition and this turns the walls of the corpus […]

2019-03-04T12:41:29+02:0022 de February de 2019|0 Comments

Exhaustive sperm donor selection and exclusion criteria

Nowadays, many couples have to turn to gamete donation in order
to make their dream of becoming parents come true. In cases such as these, the
couple tends to have common and understandable doubts about reproduction
treatment clinics’ processes for accepting gamete donors onto their banks.

Let us use this forum to explain the semen donor selection process at Instituto Bernabeu […]

2019-02-01T12:01:16+02:001 de February de 2019|0 Comments
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