Artificial insemination is an assisted reproduction technique whereby sperm is inserted in a woman’s uterus. Homologous Intrauterine insemination is a procedure widely used for treating several reproductive disorders. It should not be confused with In Vitro Fertilisation (IVF), as the goal of IUI-H is to have fertilisation take place naturally within the Fallopian tubes. The patient does not have to rest or interrupt her daily routine afterwards.
We begin by collecting and studying our patients’ personal and family Medical History data.
In the case of female patients we perform:
In the case of male patients:
In the case of women who have a male partner:
In the case of women who do not have a male partner (single women or women who have a female partner).
Usually, the first step is to perform ovarian stimulation on day 3 of the menstrual period. Hormones that stimulate ovarian follicle growth are administered, always with an individualized protocol for each case.
Stimulation is monitored through performance of 3 ultrasound scans in a period of 8-10 days until an adequate ovarian response is achieved. Subsequently, ovulation is boosted by injecting hCG hormones when ultrasounds confirm the existence of a follicle of 18 to 20 milimetres of size. A date and time for insemination is agreed on (normally 36 hours after administering hCG). Previously, about 2-3 hours earlier, the husband or male partner must have provided a sperm sample that will be capacitated in the laboratory to enhance its quality. In those cases of insemination with donor sperm, samples are thawed for women according to blood type and Rh, as well as each woman’s physical characteristics (phenotype). It is important to underline that donation in Spain is anonymous and therefore the patient/s cannot select their donors under any circumstances.
The treatment is short in length, about 12 to 14 days from the beginning of ovarian stimulation.
It is a simple technique that is performed at the Outpatient Care Centre. It does not require anaesthesia, analgesia or taking anxiolytics, and it is not painful.
It is practically the same as any routine gynaecological examination:
Placing the speculum to view the neck of the uterus. Clearing the cervical mucus.
Inserting the cannula filled with sperm in a specific spot through the external cervical os in the neck of the uterus.
Inseminating with capacitated sperm.
The patient lays down for a few minutes (10-15).
Urine pregnancy test after two weeks if the woman has not got her menstrual period during that time.
Statistically, the chances or the positive pregnancy rates after performing an insemination with husband’s or partner’s sperm are 15%. Rates for insemination with donor sperm are slightly higher: 20-25%.
This means that patients could accumulate a 45% chance in 3 consecutive cycles in the case of inseminations with husband’s or partner’s sperm and even higher in the case of inseminations with donor sperm. In this regard, it must be underlined that it is crucial to perform an adequate examination and diagnosis so as to select those patients who best qualify for maximum chances.
The positive pregnancy rate is exactly the same for the first 3 to 4 inseminations. Chances start to fall at this point. For this reason, it is not recommended to undergo artificial insemination more than 3 or 4 times. In the old days up to 6 cycles were allowed before patients were advised to try other assisted reproduction treatments, specifically In Vitro fertilization. Today this has changed and the number of attempts to become pregnant by artificial insemination is limited to a maximum of 4.