PRESERVATION OF PATERNITY
1. How to achieve Preservation of paternity through Cryopreservation of semen
Semen freezing is a technique widely used for men who want to preserve their paternity.
Sperm freezing is a simple procedure that involves passing the sample at different temperatures until its cryopreservation in liquid nitrogen at -196 oC.
This sample will be kept until its use is decided.
2. In what cases is semen cryopreservation indicated?
Cryopreservation of semen is the technique used for the preservation of paternity and this technique is used in the following cases:
Men who are going to undergo treatments that can damage their fertility, such as those who are going to start cancer treatment with chemotherapy or radiotherapy.
Men who are going to have a testicle or prostate surgery.
Patients who are going to have a vasectomy.
Patients with severe oligospermia (semen with low sperm count) who progress to azoospermia (absence of sperm in the semen).
In IVF treatments. Although the couple plans to use a fresh semen sample in the In Vitro Fertilization, it is convenient to cryopreserve a sample for greater tranquility, and resort to it in the case of not being able to extract a sample on the day of fertilization. It is also advisable to ensure that the sample to be used on the day of insemination is of good quality.
Men who perform high-risk occupations and their reproductive capacity may be affected.
Semen Cryopreservation Phases
Semen cryopreservation can be achieved with a simple technique. The steps to follow are those
1. Obtaining the sample
The first step is to deliver a sample of your semen. The only indication before delivering the sample is to maintain 3 or 4 days of sexual abstinence.
2. Sample Analysis
The sample is analyzed in the laboratory and it is assessed if it has the quality required to be frozen.
3. Sample cryopreservation
Once it is certified that the semen sample is valid and of quality, it is subjected to a progressive cooling process until it is brought to a temperature of -196 ° C. It is frozen with liquid nitrogen vapors in a cryoprotectant medium, thus ensuring the viability of sperm once thawed. Cryopreserved samples are stored perfectly identified until they are required.
How long do frozen semen samples last?
Semen samples are protected in a cryoprotectant medium that allows their durability for an indefinite time, preserving their fertilizing capacity.
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