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recipients who performed fresh transfer (179) were excluded. Static analysis was performed with t-student test.RESULTS: In group A, the average age of recipients was 42 (32-50 years old), average oocytes allocated 13.93, average blastocysts per patient was 5.88 with a blastulation rate of 57%. In group B, the average age was 42 (30-49 years old), average oocytes allocated 11.45, average blastocysts per patient 4.81 with a blastulation rate of 58%. The average time in months to achieve pregnancy from the moment of oocyte allocation was five and a half months (M¼5.57; SD¼0.42) in group A and four and a half months (M¼4.58; SD¼0.17) in group B, this difference was not significant; t (1.29), p>0.05. The total of embryo transfers in group A was 1 to 4 and in group B 1 to 5. The average number of transfers until pregnancy was obtained in group A was 1.6 (M¼1.58; SD¼0.01) versus 1.73 (M¼1.73; SD¼0.01) in group B, this difference was not significant; t (1.27), p>0.05.CONCLUSIONS: Although PGTa is a tool to select euploid embryos, and thus seek to shorten the time to pregnancy and the number of transfers necessary to achieve it, in the case of an egg donation program, we did not find such benefit for either of the two parameters analyzed. The main limitation of this study was its retrospective design based on data from a single center which may be subject of bias. Further large prospective studies are required to make meaningful comparisons.IMPACT STATEMENT: While PGTa is a tool for selecting euploid embryos, it has no benefit in shortening the time to pregnancy in an egg donation program and it could increase treatment costs. Prospective randomized studies are needed to confirm the hypothesis and a cost-effectiveness analysis to determine its applicability.

Thus for patients with spermatocele, it is important to seek reproductive medical help as soon as the fatherhood desire is felt. As sperms collected from spermatocele confers a proinflammatory milieu, sperm collected by TESE from the testicular compartment of OA male is a better option.

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