endometrial receptivity

What is the ‘implantation window’ in fertility treatment?

The ‘implantation window’ is the name we give to the period of time during which the endometrium in the mother’s uterus is in an appropriate state for embryo implantation to take place.

Implantation is a critical and very precise process during which the embryo makes contact with and penetrates the endometrial tissue in the mother, making gestation possible. This […]

2019-04-12T10:55:28+02:0012 de April de 2019|0 Comments

The endometrial receptivity array (ERA) test

Embryo implantation is the least well known phase of reproduction within the field of reproductive medicine. This fact is of special relevance if we also take into account that the human embryo is not very efficient when compared to other closely-related species in the evolution timeline.
We currently know that pregnancy is based upon three basic pillars: the embryo, the endometrium and the tolerance of the mother’s immune system. Not only is it essential that all three function correctly, but there needs to be optimum interaction between them. We have already covered the role of the embryo and the immune system in detail. Therefore, we will now concentrate on the endometrium and, more specifically, on studying endometrial receptivity. […]

2017-10-02T14:50:28+02:009 de September de 2016|0 Comments

Embryo transfer on day 3 or day 5. The pros and cons.

Determining the ideal day for embryo transfer has always been a controversial issue and there are, even today, still a number of doubts surrounding this issue.
Embryo culture is, basically, a selection process. Each embryo’s progress is evaluated throughout and a decision is taken on which is most likely to implant successfully. […]

2016-08-04T13:06:53+02:0013 de May de 2016|0 Comments

Blastocyst, advantages of a transfer on day 4 or 5

When we perform an assisted reproduction cycle, we try to optimise the results as much as possible. Currently, the most physiological way of achieving this is with an embryo culture that reaches the blastocyst stage. […]

2018-05-09T11:40:26+02:004 de June de 2012|0 Comments
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