Abstract
ObjectiveIt is known that the increase in a woman patient's age decreases the possibilities of reproductive success. Much has also been described on male gonadal ageing, but there are few studies that reflect the possible repercussions of this ageing on embryo quality in assisted reproduction cycles. In this study, we set out to evaluate the influence of male age on the grade of oocyte fertilization, embryo development and quality on post-puncture days 2 and 3. MethodsA retrospective study was carried out which included 300 couples, who underwent IVF/ICSI treatments in the Centre of Infertility and Human Reproduction of Barcelona between January, 2006 and June, 2008. The study was carried out in couples in which the woman was aged between 25 and 35 years, had an amount of retrieved oocytes between 6 and 20, and where the cause for her infertility was either idiopathic or tubal. The couples were divided into 5 groups according to the man's age: group 1 (25-30), group 2 (31-35), group 3 (36-40), group 4 (41- 45) and group 5 (over 45 years). Fertilization rates, the percentage of embryos reaching day 2 and percentages of good-quality embryos on post-puncture days 2 and 3 were evaluated. ResultsWhen analyzing the data, we found that there were no significant differences regarding percentages of fertilized oocytes, rates of embryo development or embryo quality among the different groups. Pregnancy and abortion rates were not affected either. ConclusionsThe increase in male age does not affect fertilization rates, embryo development and quality on days 2 or 3, or pregnancy and abortion rates.
Published Version
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