CCS (Comprehensive Chromosome Screening) and unexplained sterility

Any couple that turns to a fertility clinic undergoes a number of tests in order to diagnose the fertility issue that is making natural conception impossible. It is estimated that, at the end of the process, 1 in 4 couples are provided with no apparent reason for the reproduction issue. In these couples, no significant findings came up in the diagnostic tests carried out both on the male and the female partner.
Circumstances such as these generate a great deal of uneasiness and doubts in couples because, with no known reason for their infertility, they feel as if they were in no man’s land. […]

2017-10-04T13:53:00+00:006 de October de 2017|0 Comments

How can the best spermatozoon for fertilising an egg be selected?

Selection of the spermatozoon capable of fertilising an egg and generating a viable embryo is a subject that has been covered in a great number of studies aiming to provide this question with an answer.
Although assisted reproduction techniques have been used for dealing with fertility issues for many years, there is still room for improvement in terms of the results obtained. First of all, we need to fully determine the role of the spermatozoon because it tends to be thought of simply as the transporter of the father’s genetic material with no impact on later development. This idea has already been turned on its head and sperm does not only play a role in the fertilisation process. An abnormal spermatozoon can give rise to abnormal embryos and can even influence implantation failure. […]

2017-09-01T14:27:10+00:001 de September de 2017|0 Comments

Using stem cells as the answer to ovarian failure: hope for the future or reality?

Significant progress has been made over the last few decades in the field of fertility in order for patients to be able to have children of their own. However, one of the greatest challenges in reproductive medicine is pregnancy in women with slim chances of obtaining their own eggs. For example, women with premature ovarian failure (in other words, egg loss at a young age) or, quite simple, women over the age of 40. […]

2017-07-21T08:55:55+00:0021 de July de 2017|0 Comments

What are an embryo’s nutritional requirements prior to transfer to the mother?

During in vitro fertilisation processes, for the first few days of their lives, human embryos have to develop outside the mother’s body in special incubators.  Temperature and pH conditions need to be optimum and embryos also need to have access to all the necessary ingredients in order to feed and, in doing so, meet their energy requirements. Culture media are used for this. […]

2017-07-05T09:23:38+00:007 de July de 2017|0 Comments

How long should I wait following unsuccessful assisted reproduction treatment?

We are often asked this question at our clinic because, following an unsuccessful attempt at in vitro fertilisation there is always the hope of another go. The recommendation has always traditionally been to leave a space of 3 months between each ovarian stimulation, which can be stressful for patients whose age is against them.
Research has been carried out with the aim of determining whether or not a wait is necessary. The studies compare a wait of one month with a wait of three months and the results obtained are the same.
It is for this reason that we do not recommend putting off a new attempt for more than one month in patients who need to carry out treatment as soon as possible. […]

2017-05-04T09:05:59+00:006 de April de 2017|0 Comments

The importance of the Fallopian tubes in fertility

The Fallopian tubes are two, very thin elongated structures measuring around 12 centimetres in length which connect the peritoneal cavity to the uterus. In this external abdominal part, they are in very close contact with the ovaries.
The Fallopian tubes play a vital role or function in human reproduction: in the first instance, they are responsible for suctioning the egg from the ovary each month and later for waiting 24-72 hours for fertilisation. Should this not happen, the egg is simply absorbed. If it is fertilised, the Fallopian tube allows the fertilised egg to travel to the uterus thanks to contractions and to the hair cells lining it. The fertilised egg (or zygote) remains in the Fallopian tube for around 48-72 hours on its journey to the uterus where it will eventually implant the embryo. […]

2017-03-30T19:11:01+00:0031 de March de 2017|0 Comments

Safety in the in vitro fertilisation (IVF) laboratory so that errors are avoided

A recent news item generated alarm regarding safety procedures in in vitro fertilisation (IVF) laboratories. On this occasion, a hospital in Utrecht is currently investigating 26 potential cases of confusion as a result of insemination with semen samples from different patients. We say that making mistakes is only natural, but when we are working with gametes and embryos, the error rate must be zero.
This recent news instils fear in patients since they are not familiar with the safety measures present in IVF laboratories. This fear can generate a lack of confidence in the clinic and its staff.  If we take into account that assisted reproduction treatment generates stress, news of this kind increases fears even more and generates even greater stress. […]

2017-03-02T14:30:18+00:003 de March de 2017|0 Comments

Personalised counselling unit. Don’t let your doubts hold you back. We’re there to make you feel at ease

Behind our on-line consultation system, there is a team of trained personnel. The team is ready to help users and make them see that the concerns amongst people who are looking for an answer to their doubts or worries, are also our concerns. Instituto Bernabeu has a Personalised Counselling Unit. Its team of experts has been trained to clear up the doubts which people understandably have when they are thinking about beginning treatment, when they wish to compare opinions, when they are looking for help regarding how much treatment will cost or when they have gynaecological-related doubts about assisted reproduction.  […]

2017-02-17T15:08:10+00:0017 de February de 2017|0 Comments

Will my frozen embryos survive?

Cryopreservation, or embryo freezing, is an essential part of courses of assisted reproduction treatment since it means that embryos can be preserved in order to be used at a later date and without the passing of time having a negative impact on their viability.
Embryos obtained as a result of in vitro fertilisation (IVF) may be thawed for a number of reasons: […]

2017-02-08T14:57:37+00:009 de February de 2017|0 Comments

What is a spermatid?

Spermatozoa production takes place in the testicular seminiferous tubules and the process is known as spermatogenesis.  At the end of this process, a germ cell generates 4 mature spermatozoa which will survive in the human body for between 62 and 75 days.  The final stage in spermatogenesis, known as spermiogenesis, is a cell differentiation and maturation process consisting of the change from spermatids to spermatozoa.  As can be seen in the picture, the spermatids develop from secondary spermatocites and have already undergone Meiosis I and II division. They have a normal set of chromosomes (haploid) which means that fertilisation of a mature egg can take place. Therefore, and despite the fact that they are immature cells, they can be used in assisted reproduction techniques using ICSI when there are no mature sperm in samples taken from the ejaculate or testicles. […]

2017-01-13T14:38:30+00:0013 de January de 2017|0 Comments
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