Intra-uterine insemination versus timed intercourse for cervical hostility in subfertile couples

Clinical Aspects of Homologous Insemination. Is it an Effective Technique in this Day and Age?

La mentalidad que predomina en el recurso a las técnicas de reproducción está caracterizada por la búsqueda de la eficacia. Este motivo lleva a dejar de lado aquellos métodos que actualmente son considerados “de baja complejidad”.Sin embargo, estos procedimientos tienen una aplicación determinada, que en muchos casos evitaría tener que recurrir a la fecundación in vitro y transferencia del embrión(Fivet) y a la intracytoplasmicsperminjection(ICSI), evitando así la manipulación de embriones humanos.En el presente artículo se resume el estado actual de aplicación de las técnicas de inseminación, de baja complejidad.Como fruto de la investigación se podrá apreciar que: a) la inseminación tiene su propio campo de aplicación en el que puede competir con la Fivet; b) por la escasa información existente, sería útil realizar más estudios comparativos entre los resultados de Fivet, ICSI e inseminación: actualmente no hay suficiente evidencia que justifique desechar esta última para optar por las dos primeras.

Effectiveness of intrauterine insemination in subfertile couples with an isolated cervical factor: a randomized clinical trial

After randomization of subfertile couples with an isolated cervical factor to intrauterine insemination for 6 months or expectant management for 6 months, 26 women (51%) vs. 16 women (33%) conceived, respectively. Of these pregnancies, 22 (43%) vs. 13 (27%) were ongoing (relative risk, 1.6; 95% confidence interval, 0.91 to 2.8). There was one multiple pregnancy in the group that was allocated to intrauterine insemination. This trial suggests a beneficial effect of IUI in couples with an isolated cervical factor.

[Intrauterine insemination: against systematic ovarian stimulation]

Intrauterine insemination is a technique proposed of first intention in many situations of non-tubal infertilities. It is very frequently associated with a stimulation of ovulation, with the objective of precisely synchronizing the intra uterine stimulation and ovulation, and an increase in follicular recruitment. If intrauterine stimulation is often a determining factor in obtaining pregnancy, stimulation of ovulation does not always bring about an obvious benefit and its interest must be discussed according to the indications, knowing on the other hand that it is determining in the occurring of multiple pregnancies.