Actually, EndomeTRIO includes 3 endometrial tests to study the uterine condition at different levels and obtain a comprehensive diagnosis:
- ERA test
- EMMA test
- ALICE test
The main indications for the EndomeTRIO test are recurrent miscarriages and repeated implantation failures.
Below you have an index with the 8 points we are going to deal with in this article.
What does endometrial factor mean?
The endometrium is the inner layer of the uterus where embryo implantation and the beginning of pregnancy takes place. For this purpose, the endometrium has the ability to regenerate itself with each menstrual cycle and become receptive during a woman's fertile days.
However, there are cases in which the endometrium may be altered and not have the ideal characteristics for implantation to occur. This would be what is known as endometrial factor infertility and it takes place in 20% of cases.
The causes of endometrial factor can be diverse, such as displacement of the implantation window, endometritis, refractory endometrium, etc.
For a successful fertility treatment, it is not only important to obtain good quality embryos with maximum implantation capacity, but it is also essential to have an optimal endometrium that allows implantation.
What is EndomeTRIO?
The EndomeTRIO test aims to analyze a woman's endometrial health in a very comprehensive way.
Therefore, it is necessary to perform an endometrial biopsy from which 3 different tests are performed that will provide relevant information on the condition of the endometrium. We comment on each of these tests below.
The ERA (Endometrial Receptivity Array) test is a molecular test that aims to identify the exact days of the implantation window and thus schedule the embryo transfer at the most suitable time.
To identify exactly which days of the cycle the endometrium is receptive, the expression of 248 genes is studied using the mass sequencing technique (NGS).
The result of the ERA test will indicate the state of the endometrium at the time of the biopsy: receptive, early receptive, late receptive, non receptive, etc.
The EMMA test (Endometrial Microbiome Metagenomic Analysis) analyses the endometrial microbiome, i.e. the type and number of microorganisms in the uterine cavity, to determine whether it is optimal or not.
Recent studies have shown that pathogenic deviations in the levels of endometrial Lactobacilli and dysbiotic bacteria can lead to infertility, hence the importance of studying the microbial environment of the uterus.
The results of the EMMA test will include the percentage of Lactobacilli or other bacteria detected, as well as suggested antibiotic or probiotic treatment if necessary.
The ALICE (Analysis of Infectious Chronic Endometritis) test is a molecular test to diagnose chronic endometritis, which affects approximately 30% of infertile patients.
Chronic endometritis is a uterine infection caused by pathogenic bacteria that results in persistent inflammation of the endometrium.
The ALICE test identifies the pathogenic bacteria that cause chronic endometritis and how much of it is found in the endometrium. These bacteria are Enterococcus spp. , Enterobacteriaceae (Escherichia and Klebsiella), Streptococcus spp. , Staphylococcus spp. , Mycoplasma spp, and Ureaplasma spp. ALICE also identifies other pathogenic bacteria associated with sexually transmitted diseases, such as Chlamydia and Neisseria.
Additionally, ALICE provides information on the most recommended antibiotic and/or probiotic treatment to cure endometritis.
As we have already indicated, the first step to perform EndomeTRIO is to perform an endometrial biopsy on the patient and take a sample. The gynecologist will have to use a cannula and take the biopsy of the uterus fundus.
As for the best day to do the endometrial biopsy, there are two options:
- EndomeTRIO with ERA test
- the endometrial biopsy should be taken under the same conditions under which the embryo transfer will subsequently be performed, i.e. in a substituted cycle or in a natural cycle. In the first case, the biopsy will be performed on day P+5 of progesterone administration, with day P+0 being taken on the first day of progesterone intake. In case of being in a natural cycle, the endometrial biopsy will be performed 7 days after the hCG injection, that is, on day hCG+7.
- EndomeTRIO without ERA test
- if only the EMMA and ALICE tests are performed, the endometrial biopsy can be taken between days 15 and 25 of the menstrual cycle.
Indications of EndomeTRIO
Although any patient who is going to undergo assisted reproduction techniques can opt for EndomeTRIO, its main indications are the following:
- Implantation failures
- Repeated miscarriage
- Chronic Endometritis
- Previous sexually transmitted diseases
As we have said, EndomeTRIO can also be an option for other patients who simply want to know the status of their endometrium, which will allow for a more personalized embryo transfer and an increase IVF success rates
Fertility treatments, like any other medical treatment, require that you trust the fertility specialists that will be by your side during your journey. Logically, each clinic has a different work methodology. Our Fertility Report will offer you a selection of recommended clinics, that is, fertility centers that have passed our rigorous selection process. Moreover, our system is capable of comparing the costs and conditions of each one so that you can make a well-informed decision.
FAQs from users
What is the EndomeTRIO test and what results does it offer?
The EndomeTRIO test is used to find out more about the patients' endometrium. It is a complete analysis of endometrial health that includes the following tests: ERA, EMMA and ALICE.
The ERA test analyses endometrial receptivity, the EMMA test analyses endometrial microbiota to increase reproductive success and the ALICE test detects the bacteria that cause chronic endometritis.
Numerous studies show the importance of a good endometrium as one of the fundamental keys to assisted reproduction treatment, as it is known that 20% of infertility is due to an endometrial factor.
What are the differences between the EMMA test and traditional microbial culture?
Microbial culture is a diagnostic method that consists of cultivating a biological sample in a plate with the optimal medium and conditions to promote the proliferation of microorganisms and to be able to identify them. In contrast, the EMMA test uses mass sequencing technology to identify genes that belong to microorganisms and not to the human species.
The advantage of the EMMA test is that it can identify bacteria that may not be detectable by culture or that are not directly cultivable.
Suggested for you
If you want to know more about the endometrium and its role in the menstrual cycle, continue reading here: What’s the Role of the Endometrium? Function & Thickness.
We have said that the EndomeTRIO test is useful to optimize an IVF treatment and to achieve a better success rate. If you want to learn more about the process, you can access the following post: What is in vitro Fertilization? Process, Cost & Success Rates
Finally, EndomeTRIO will provide information on the best time to perform the embryo transfer and achieve a positive result. Learn more about the embryo transfer here: IVF Embryo transfer procedure - definition, process & tips
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