Assisted reproductive technology

New images allow us to see how the endometrium makes movements to keep the embryo inside the uterine cavity and prevent its expulsion, making it easier to implant in the most appropriate place. Below you have an index with all the points that we will discuss in this article. Index 1. Study of ultrasound 2. Results 3. Authors and collaborators Study of ultrasound The Institut Marquès presented the weekend at the Alpha Conference in London a video showing the activity of the uterus when receiving embryos after In Vitro Fertilization. The images show movements of the endometrium (the inner layer of the uterus) that allow embryos to be placed, regardless of the place where the gynecologist has deposited them. For the study, ultrasound images of 18 patients were recorded during and after the embryo transfer after in vitro fertilization. The videos were repeated every hour for four hours after the transfer. Dr. Marisa López-Teijón, Head of Assisted Reproduction of Institut Mar...

The failure of embryo implantation is a problem that occurs in women who want to have a pregnancy and can not get it, despite frequent unprotected sexual intercourse. The problem of these couples is that they do not know if they are really having repeated implantation failures, or on the contrary, their gametes (ovum and sperm) are not even able to fertilize and give rise to an embryo that reaches the uterus. The fact of having implantation failures can only be confirmed when undergoing in vitro fertilization (IVF) treatments, since the development of the embryo in the laboratory is observed and there is confirmation that it is transferred to the uterus of the mother. Below you have an index with all the points that we will discuss in this article. Index Repeated failures of embryo implantation: causes and solutions 1. Embryonic implantation 2. When do we talk about implantation failure? 3. Causes of embryonic implantation failure 3.1. Embryonic causes 3.2. Uterine cause...

One of the most controversial topics in in vitro fertilization treatments (IVF, ICSI) is the choice of the number of embryos to be transferred. It has to be decided without compromising the chances of success and, at the same time, without running the risk of multiple pregnancy. Currently, the experts' recommendations coincide in trying to transfer only one embryo, whether it is fresh cycles, vitrified (frozen) embryos or ovodonation. Below you have an index with all the points that we will discuss in this article. Index Embryo transfer: How many embryos do you have to transfer? 1. How to decide how many embryos to transfer? 1.1. Advances in assisted reproduction techniques 1.2. Criteria used to make the decision 2. How are embryos classified? 2.1. Recommendations of the SEF 3. Avoid the risk of multiple pregnancy 4. Transfer of a single embryo 5. Questions from users 5.1. Should the quality of the gametes be taken into account to choose how many embryos to tr...

One of the most frequent activities in any fertility clinic or reproduction unit is the transfer of cryopreserved embryos, which represents about 20% of the work done in these centers. Below you have an index with all the points that we will discuss in this article. Index The natural cycle in embryo transfer 1. Factors to transfer an embryo 2. Natural cycle vs. substituted cycle Factors to transfer an embryo At the moment of transferring an embryo to the maternal uterus, it is necessary to take into account a series of parameters that must be controlled to optimize the reproductive process and ultimately guarantee a correct pregnancy at term: Maternal age at the time of embryo cryopreservation Cause of infertility Embryonic quality Embryo freeze-thaw technique used Optimization of the endometrium at the moment of transferring the embryo to the uterus Transfer of vitrified embryos Natural cycle vs substituted cycle For this last factor there are different strategies ...

Embryo adoption or embryo adoption is the reproductive treatment by which a couple seeks pregnancy through the transfer of surplus embryos from the in vitro fertilization (IVF) treatment of another couple, who has decided to donate them anonymously and altruistically. For this reason, this technique is also known as embryo donation or embryo donation, as one partner donates them and another adopts them. In this way, we talk about: Embryo donation, from the point of view of the person or couple that donates their surplus embryos to help other couples. Adoption of embryos, from the point of view of the person or couple who receives embryos from other patients in order to achieve pregnancy. Below you have an index with all the points that we will discuss in this article. Index Is donation the same as adoption of embryos? 1. Surplus embryos from IVF treatment 2. Advantages of adopting embryos 3. Percentage of success 4. Price 5. Frequently asked questions 5.1. In the don...