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Artificial insemination

Success rate of intrauterine (IUI), intraFallopian (IFI) and intraperitoneal insemination (IPI)

The success rate of IUI, IFI and IPI varies considerably between infertility clinics and in the same clinic between different couples. Success rates are in the region of 5-30% and depend upon many factors including:

Cause of infertility

The cause of infertility is crucial in determining the success rate of any treatment undertaken.

Endometriosis

Women with severe endometriosis or men with severe sperm problem are not suitable for intrauterine insemination (IUI) because of the very low success.

Male factor infertility

It has been reported that in male factor infertility, unstimulated (natural cycle) IUI increases the likelihood of pregnancy two-fold while stimulated IUI increases it by about five-fold. Men with severe sperm problems are not suitable for IUI because of the very low success rate.

Unexplained infertility

In unexplained infertility, unstimulated IUI increases the likelihood of a pregnancy by three-fold, while stimulated IUI increases it by about five-fold.

The female partners fertility

Women with healthy Fallopian tubes and who ovulate regularly have a higher chance of achieving a pregnancy than women whose tubes are not healthy or do not ovulate regularly.

The female partners age

The younger the woman’s age the higher the chance of conception.

Duration of infertility

The chance of conception decline with the longer period of infertility.

Sperm produced

The sperm quality and quantity, the degree of sperm motility, the percentage of normal looking sperm and the number of sperm are the most important factors. These may be assessed with a semen analysis.

Cycle rank

It is generally accepted that re-evaluation and discussion about other form of treatments such as in-vitro fertilization (IVF) and gamete intra-Fallopian transfer (GIFT) should be carried out with the couple after 6 consecutive failed treatment cycles. Because about 90% of patients who conceive by IUI will do so in the first 6 cycles, thereafter hardly increase by continuing for longer.

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Last updated: Wed, 18 Mar 2009 - 5:01:55
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