Sperm aspiration of the epididymis

-

Sperm aspiration of the epididymis is an alternative to the use of donor semen in couples with obstructive azoospermia or with a low amount of sperm in the semen.

Below you have an index with all the points that we will discuss in this article.

Index

Sperm aspiration of the epididymis

It can also be used in men who want to be parents after a vasectomy and who do not want to undergo reconstructive surgery to reverse it and attempt a natural pregnancy .

Sperm aspiration by PESA

The technique involves extracting sperm directly from the epididymis, the area of ??the male reproductive system located above the testicle. Here the spermatozoa are stored once produced and complete their maturation.

Thanks to this technique of sperm retrieval, sperm can be frozen for later use or directly performed an ICSI with them.

Surgical intervention will be done in one way or another depending on whether the procedure is possible through the skin (percutaneous) or an incision must be made. Thus, two methods for sperm aspiration are distinguished: PESA and MESA.

In cases in which no sperm can be obtained, a testicular biopsy can be performed to obtain sperm directly from the testicle. Another option would be the donation of semen .

Percutaneous sperm aspiration (PESA)

By means of this method the content of the epididymis is gently and gradually aspirated by means of a butterfly needle. The process takes no more than 10-20 minutes and only local anesthesia is required.

The extracted fluid is then examined under a microscope to see if there are sperm cells and to be able to analyze their mobility and concentration. These, after being processed in the laboratory, can be used to microinject and fertilize the couple's eggs.

Percutaneous recovery is usually the first option to obtain sperm for an ICSI treatment, since it is a simpler and less invasive procedure than microsurgical aspiration.

ICSI with sperm obtained by MESA

However, not enough sperm are obtained in the event that the sample is to be frozen, so it may be necessary to repeat the procedure.

So that this does not happen, those samples that are going to be frozen are obtained through MESA, which is a more reliable technique and with a higher collection volume.



Microsurgical Sperm Aspiration (MESA)

On the other hand, the MESA method consists of making a 1-2 cm incision in the skin of the scrotum in order to expose a testicle and reach the epididymis.

Once there, the ducts inside the epididymis are examined and opened to extract the fluid from inside. This fluid is then analyzed in the laboratory through a microscope to look for sperm. In case they are and are of good quality, they are aspired for their subsequent freezing and / or use in an ICSI.

Through this procedure more sperm are extracted than in a PESA, and being an extraction with the epididymis open it is possible to reach different areas and see the area with greater clarity.

It has the disadvantage that it is a more complex, more invasive procedure and it is necessary to use general anesthesia for sedation of the patient.

Comments

Post a Comment

Popular posts from this blog

Gonal-f pen: doses of 300, 450 and 900 - How does it apply?

-
Gonal-f is a hormonal drug used in assisted reproduction treatments to cause the development of multiple follicles in the ovary. It is composed of the follicle-stimulating hormone (FSH), a gonadotropin that acts in the menstrual cycle of women. There are several formats of Gonal-f in the market, but one of the best known is the one that is administered with a pen-type injector. Below you have an index with all the points that we will discuss in this article. Index 1. Composition and presentation 2. Mode of administration 3. Questions from users 3.1. How should the pen of Gonal-f be preserved? 3.2. What is the use of the Gonal-f pen? 3.3. What happens if I miss a day of giving the dose of Gonal-f? 4. Recommended reading 5. Bibliography 6. Authors and collaborators Questions from users surrogate pregnancy in Tenerife(Spain)
Read more

Fertility treatments in the couple: how to get pregnant?

-
Image
According to the latest report of the Spanish Fertility Society (SEF), in 2016 were carried out 138,553 cycles of in vitro fertilization (IVF) and 36,463 cycles of artificial insemination (AI), which resulted in a total of 37,503 babies born . This represents an increase of 8% in the use of assisted reproduction techniques with respect to the previous year, which shows that more and more couples need help to have the opportunity to become parents. After a year of sexual intercourse without achieving pregnancy, a couple is considered to have sterility problems, so it is advisable to start doing diagnostic tests and determine the most appropriate assisted reproduction treatment in each case, as we will discuss throughout this post. Below you have an index with all the points that we will discuss in this article. Index 1. Custom fertility treatments 2. Artificial insemination (AI) 3. In vitro fertilization (IVF) 3.1. ICSI 3.2. DGP 4. Questions from users 4.1. How muc...
Read more

What is the purpose of the ovitrelle in a fiv treatment?

-
Image
Ovitrelle is a drug that contains recombinant hCG used in assisted reproduction to stimulate ovulation and thus favor pregnancy in the treatments of artificial insemination and in vitro fertilization (IVF). Below you have an index with all the points that we will discuss in this article. Index What is the ovitrelle for in an IVF treatment? 1. Composition 2. Instructions for use 3. Indications and contraindications 4. Risks and adverse effects 5. Ovitrelle and pregnancy test 6. Questions from users 6.1. Is it normal to give ovitrelle after the transfer of the embryos? 6.2. Does the ovitrelle advance the rule? 6.3. Does alcohol consumption negatively affect the effect of ovitrelle? 6.4. What is the price of the ovitrelle ?, does it go into social security? 6.5. Should it be kept in a refrigerator or at room temperature? Composition The active principle of ovitrelle is choriogonadotropin alfa, also called recombinant hCG (human chorionic gonadotropin). The qual...
Read more