Forum/Blog

The latest advances and professional information, proven and reliable on fertility and assisted reproduction, gynaecology, genetics, embryology, endocrinology and urology, written by the medical professionals of Instituto Bernabeu.

How many embryos should be transferred? The importance of medical advice

Following in vitro fertilisation (IVF), the embryos obtained are evaluated in the laboratory before transfer to the patient’s uterus. A key question always comes up at this point: which and how many of those embryos should be transferred? […]

2018-08-16T10:59:19+00:0017 de August de 2018|0 Comments

What is oestradiol? What is this sex hormone’s role?

Hormones are messengers that are present in all multicellular organisms – be they animal or plant organisms – that coordinate the functions of each part of that organism.
The sex hormones par excellence are oestradiol in females and testosterone in males. However, the adrenal glands in men and women produce both hormones and they are both necessary for normal development of the two sexes. […]

2018-08-08T14:20:13+00:0010 de August de 2018|0 Comments

Have I got poor ovarian response? How should I deal with it?

A patient can be classified as having poor response when the number of oocytes obtained during a cycle of in vitro fertilisation is under what was expected. The criteria generally used to label a patient as a poor responder is when 3 or fewer oocytes are retrieved and she has incredibly low ovarian reserve markers (fundamentally, AMH and AFC). […]

2018-08-01T11:49:34+00:003 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. […]

2018-07-04T09:08:34+00:0027 de July de 2018|0 Comments

Assisted hatching

Assisted hatching is a laboratory technique that consists of making a small hole in the zona pellucida, the membrane surrounding the embryo, in order to make it easier for the embryo to hatch out (something that naturally needs to happen) and implant in the uterus. […]

2018-07-02T18:35:44+00:0020 de July de 2018|0 Comments

The significance of sexually transmitted diseases (STDs) in fertility

Sexually transmitted disease (STDs) are infections that are transmitted, on the whole, during unprotected sexual intercourse.  However, they can also be transferred from mother to child during pregnancy.
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2018-07-02T18:03:52+00:0013 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. […]

2018-07-02T17:29:52+00:006 de July de 2018|0 Comments

Fragile X chromosome syndrome and fertility

Fragile X syndrome is one of the most common causes of hereditary intellectual disability.
The gene responsible for the disease is known as FMR1 and it is found in the X sex chromosome. As a result, both the transmission and the severity of the disorder varies in each sex. As a general rule, men are said to suffer from it whilst women are said to transmit it.
There is a repeat region in the FMR1 gene (expansion) and its size determines whether or not the individual has the disorder or not, as indicated below. […]

2018-06-26T17:29:28+00:0029 de June de 2018|0 Comments

Can acupuncture have a positive impact on a cycle of in vitro fertilisation?

Acupuncture is a medical discipline with a history dating back several millenniums. For many years, attempts have been made to apply its therapeutic benefits to the field of sterility.
The results obtained to date have been contradictory. Whilst some groups have published improvements in the results obtained, others have not noted any differences at all. […]

2018-06-22T09:53:04+00:0022 de June de 2018|0 Comments

Antiphospholipid Syndrome: What is it? How does it affect pregnancy?

Antibodies are proteins produced by the immune system of our organism to combat possible infections of viral or bacterial origin. In some diseases, the immune system produces antibodies that, erroneously, attack the tissues of our own body. The result of this attack is the appearance of what are known as autoimmune diseases. […]

2018-06-12T09:06:25+00:0015 de June de 2018|0 Comments
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