In vitro fertilisation (IVF)

What happens to ova that have not fertilised?

During assisted reproduction treatment, the ova and spermatozoa need to be transported to a laboratory where they are united using one of two methods: conventional in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI).

During IVF, ova and spermatozoa are brought into close contact so that a spermatozoon can penetrate the ovule ‘naturally’ and generate fertilisation. It is a mainly […]

2021-02-08T15:31:25+02:002 de February de 2021|0 Comments

Reasons to cancel and embryo transfer

One of the most exciting times during a treatment of assisted reproductive is the Embryo Transfer. After carrying out all the laboratory processes, microinjection (ICSI) or insemination (IVF) and embryo culture, among others, it is time to transfer the selected embryo.

However at times it is not possible to transfer the
embryo and we must cancel or […]

2021-02-04T10:56:01+02:001 de February de 2021|0 Comments

What posible complications can be given in the embryo transfer?

The aim of any assisted reproductive treatment ends with embryo transfer. This is the gentle placement of the embryo in the uterine cavity. Is the key moment of the entire procedure, embryologist and gynaecologist working together.

Embryo transfers can be done in a fresh cycle, that is, transferring the embryo after in vitro development in day […]

2021-01-25T17:36:31+02:0025 de January de 2021|0 Comments

Mumps and male infertility

Mumps, what is it?

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 […]

2021-02-11T10:07:13+02:005 de January de 2021|0 Comments

Estrogens: What are they, what is their function and what benefits can they bring?

What are oestrogens?

They are also sex hormones, along with progestogens and androgens. They come from the cholesterol’ s metabolism and are produced mainly in the ovaries and placenta, and, in smaller quantities in the adrenal glands.

What is the role of oestrogens?

Estrogens influence countless organs and tissues. Its main action occurs in the endometrium, […]

2021-01-04T17:35:48+02:004 de January de 2021|0 Comments

Time-lapse in assisted reproduction. Current situation

What is Time-Lapse in in vitro fertilization, IVF?

Time-lapse technology (TTL) consists of monitoring embryonic development and making a film
of embryonic evolution by means of a video camera introduced either in a
conventional incubator or incorporated in a special incubator. A special software
reconstructs the images and allows us to view the development of the embryos.

It is often […]

2021-02-24T12:37:24+02:0027 de December de 2020|0 Comments

What is the embryologist role in the in vitro fertilization (IVF) treatment?

The retrieval of the oocytes from the
follicular fluid marks the beginning of a series of events the purpose of which
is to achieve a pregnancy and a later birth of a healthy baby. This is also the
beginning of the technical work of the IVF laboratory embryologists. Before
every cycle, we thoroughly study each clinical history and prepare […]

2020-11-30T18:51:57+02:0030 de November de 2020|0 Comments

Fertilization failure

Fertilization is a key step in sexual reproduction, is the union between a healthy
egg and sperm, giving place to a zygote: the first cell of a living person.

In the assisted reproduction lab, fertilization is in vitro. Embryologist’s favour the gametes encounter and, classify the obtained embryos, which later, in the laboratory, will develop as […]

2020-11-24T14:12:47+02:0023 de November de 2020|0 Comments

Single mother by choice

The increase in new types of family units over the last few decades has been one of the world’s most significant changes. For various reasons, the single parent family, is one of the most common of these new models.

We are talking, in this case, about single parent families in which a woman has taken the […]

2020-11-25T12:15:48+02:001 de November de 2020|0 Comments

Why does embryonic arrest sometimes happen during in vitro development?

Many factors can intervene in arrest processes during embryo development which mean cell division is detained and, therefore, it is not possible to implant the embryo in the mother’s uterus and bring about a pregnancy.

In the first instance, the conditions for development are essential.  Embryos that develop in vitro are subjected to a number of artificial […]

2020-10-19T11:22:50+02:006 de October de 2020|2 Comments
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