Donation and
Reception of Semen
Indications:
1) Azoospermia.
In some couples who consult about conjugal infertility there is a
male factor involved. This means that there is an alteration in the
semen analysis, such as a decrease in motility and concentration, or
an alteration of the spermatozoa morphology. Nowadays, all these
problems have a solution, as the more sophisticated infertility
treatment use just a few spermatozoa. This is the case of the ICSI (injection
of one spermatozoon into an oocyte), which is a technique of
assisted reproduction which requires a single spermatozoon per each
egg (oocyte) retrieved after ovarian stimulation. Even in the
absence of spermatozoa in the semen sample, these can be obtained in
a 50% of the cases by means of an epididymal puncture or a
testicular biopsy. These procedures allow to perform the ICSI and
thus the possibility of a biological child. But the person may have
physical problems, such as infections, traumatisms, genetic problems,
etc. that prevent us from finding spermatozoa, both in the ejaculate
and in the testicular biopsy, thus making any treatment impossible.
At this point, many couples who are dealing with these problems turn
to the use of donated sperm.
2) ICSI
Fertilization Failures.
Many couples who have undergone one or several ICSI procedures
present fertilization failures (derived from a male factor), which
means that either embryos cannot be formed at all or the ones formed
are defective. In this case they can turn to semen donation.
3) Hereditary
diseases.
Some diseases which are transmitted by males to their offspring can
make couples turn to sperm donation.
4) Single women.
5) Lesbians.
Technique:
When
a reproduction specialist has to perform this kind of treatment, he can
do it either with a spontaneous cycle or with a stimulated cycle in
order to offer more eggs (e.g. 2 or 3) and thus increase the chances of
pregnancy. In both cases ovulation should be monitored via transvaginal
ultrasound so as to evaluate the growth of the ovarian follicle/s (which
enclose the eggs). When considered convenient, a sample with
characteristics which are similar to the recipient couple is required to
the bank. The sample is then thawed and deposited in the upper part of
the vagina (vaginal or cervical insemination), or inside the uterus (intrauterine
insemination). The donor’s identity will remain anonymous.
Sperm Bank:
There
are a few sperm bank in Buenos Aires which can offer sperm to these
couples (centers or institutes storing semen samples to be used in these
insemination treatments are known as banks). Sperm banks operate as
follows: semen donors are young and healthy people with no history of
genetic or infectious disorders. They are generally university students,
whose fertility has often been proved. Samples are frozen and classified
according to the physical characteristics of the donors.
Pregnancy Rate:
These
insemination procedures with donor semen have a pregnancy rate of 15%
per attempt. If the procedure is performed 6 times the success rate
rises to 70%.
The use of a donated male “gamete” (spermatozoon) is complex from a
psychological point of view, due to the initial impact that this
situation causes in the couple (especially the man). The success of the
treatment requires psychological assistance. |