BACKGROUND:

Earlier trials comparing different ovarian stimulating protocols in assisted reproduction found no significant differences in the results.

OBJECTIVE:

To evaluate the effect of three different stimulation protocols based on the glycosylation pattern of the follicle stimulating hormone (FSH) in an intrauterine insemination (IUI) program. The stimulating protocols are: human FSH (acidic isoform), recombinant FSH (less acidic isoform) and combined urinary and recombinant FSH.

MATERIALS AND METHODS:

Cohort study, retrospective, conducted between May 2012 and May 2015 in infertile couples in protocol of artificial insemination. The study group was divided into three: 1) FSHr, 2) FSHhp and 3) sequential pacing: FSHhp + FSHr. For statistical analysis, χ2, ANOVA or Mann-Whitney test were used. The results are reported with a significance limit of p < 0.05.

RESULTS:

178 infertile couples were studied in an artificial insemination protocol and 299 cycles of ovarian stimulation were performed with artificial insemination; Group 1) 99 with FSHr, 2) 100 with FSHhp and 3) 100 with sequential stimulation: FSHhp + FSHr.

CONCLUSION:

In this study, controlled ovarian stimulation with sequential protocol was considered in patients who would receive artificial insemination and, although no significant differences were found, a trend was observed in which both the dose and the days of stimulation required are lower with this protocol than with the classics with FSHr or FSHu.

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