Artificial insemination

AIDS. Assisted reproduction is the best option

The risk of contracting HIV during unprotected sexual intercourse is estimated to be between 0.5 and 1%. For serodiscordant couples (one partner is a carrier), trying for a child naturally can entail an elevated risk of transmission. In cases such as these, assisted reproduction techniques are an excellent choice for getting pregnant without the risk […]

2019-01-11T10:57:28+02:0011 de January de 2019|0 Comments

Is there hope for me following fertilisation failure after ICSI?

In vitro fertilisation treatment (IVF) techniques consist of fertilising oocytes with spermatozoa in a laboratory. They are held under conditions that are similar to their natural environment and, a few days later, the best embryo is selected and placed in the woman’s uterus where it remains until it implants. From this point on, monitoring procedures are the same as in any other spontaneous or natural pregnancy. […]

2018-11-02T14:19:35+02:002 de November de 2018|0 Comments

Seminal lavage: what is it and what is it used for?

Human immunodeficiency virus (HIV), hepatitis C (HCV) and hepatitis B (HBV) are viruses that are transmitted through blood and body fluids as well as through vertical transmission (from the mother to the foetus).  As a result, couples wishing to get pregnant in which one partner is a carrier of a virus are faced with the question of whether or not it is possible to do so without the other partner getting infected. If the male partner has one of these viruses and his female partner does not (serodiscordant couples), assisted reproduction technology (ART) can be used in order to avoid transmission. […]

2018-10-03T09:50:57+02:005 de October de 2018|0 Comments

The advantages of comprehensive chromosome screening (PGS/PGT-A/CCS) in women of an advanced maternal age

Women currently seek guidance on reproduction at a much older age than they did some years ago. As a result, amongst the women who undergo fertility treatment, there is a significant group of women of an advanced age and their prognosis is poorer. This is a huge challenge for reproduction specialists. […]

2018-09-06T09:36:01+02:007 de September de 2018|0 Comments

Polycystic Ovary Syndrome

The term polycystic ovary syndrome is used to define an ultrasound diagnosis characterised by the presence of 12 or more follicles in each ovary (between 2 and 9 mm in diameter) and/or an incremented ovary volume (>10 ml). Findings such as these in ultrasounds in a single ovary are sufficient in order to be able to give a diagnosis. However, since taking oral contraceptives can change ovary morphology, this diagnostic criteria does not apply to women who take oral contraceptives.
From a practical point of view, when assisted reproduction technology (ART) is being used, detection of polycystic ovaries in isolation is useful for predicting the ovary’s response to stimulation using drugs and the risk of ovarian hyperstimulation syndrome. […]

2018-08-29T13:55:38+02:0031 de August de 2018|1 Comment

Seminal lavage in males with HIV

Human immunodeficiency virus (HIV) is a retrovirus and, during its most advanced stage of infection, it leads to acquired immunodeficiency syndrome (AIDS). Whilst there is currently no cure for HIV/AIDS, antiretroviral treatments do exist that stop the symptoms from developing or delay them until later. As such, we come across increasing numbers of couples of childbearing age who wish to have children and in which one of the partners is a carrier of the virus. […]

2018-08-22T08:59:51+02:0024 de August de 2018|0 Comments

Oocyte quality

Oocyte quality is one of the most important of the factors that have an impact on fertility in women. Optimum oocyte quality generally gives rise to embryos with an increased ability to implant in the uterus. […]

2019-06-20T08:31:46+02:0027 de July de 2018|0 Comments

What is a mature oocyte?

In the ovary, there are structures known as follicles that contain the oocytes or ova. When a patient undergoes in vitro fertilisation (IVF) treatment, ovarian reserve is one of the most relevant pieces of data and it is evaluated by means of an antral follicle count (follicles that are capable of responding to hormones during stimulation cycle). This information is essential in predicting the number of oocytes we will obtain following ovarian stimulation. Following an ultrasound scan and hormone level checks, the gynaecologist decides when ovulation should be triggered in the patient. […]

2019-06-20T08:31:53+02:006 de July de 2018|0 Comments

Sperm capacitation

The spermatozoa in ejaculate need to have gone through a process known as sperm capacitation in order to obtain the ability to fertilise. This happens naturally in the female reproductive system and techniques in order to make it happen in the laboratory have been undergoing development for many years. […]

2018-06-06T09:08:08+02:008 de June de 2018|0 Comments

Mumps and male infertility

Parotitis, more commonly known as “mumps”, is a contagious viral disease that affects one or both parotid glands (major salivary glands) situated behind the ascending rami of the mandible. It is caused by the mumps virus and typically affects children and teenagers, although it may also cause infections in sensitive adults. In general, the disease produces lifetime immunity, and it may be prevented by the administration of the combined MMR vaccine. Mumps may affect other glands in the body, the central nervous system and the testicles. The most frequent complications are meningitis and testicular inflammation which may lead to infertility. This inflammation of the testicle is also known as mumps orchitis. It is not very frequent, affecting 1 per million inhabitants per year among the general population. […]

2018-04-05T09:14:33+02:006 de April de 2018|0 Comments
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