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  • Title: Oocyte donation programme: results obtained with intracytoplasmic sperm injection in cases of severe male factor infertility or previous failed fertilization.
    Author: Borini A, Bafaro MG, Bianchi L, Violini F, Bonu MA, Flamigni C.
    Journal: Hum Reprod; 1996 Mar; 11(3):548-50. PubMed ID: 8671263.
    Abstract:
    Intracytoplasmic sperm injection was carried out in 15 oocyte donation cycles of 15 infertile couples where oocytes had failed to fertilize after in-vitro fertilization (IVF) procedures or where the male partner had severe male factor infertility. A total of 62 oocytes were donated, but only 46 of these, in metaphase II, were injected. Of the injected oocytes, 31 (67.3%) had two pronuclei the morning after the injection procedure. On the following day, 29 embryos were obtained (93% of the fertilized oocytes) and 25 were transferred. Two patients were not successful and consequently did not undergo embryo transfer. A total of five clinical pregnancies were obtained, giving pregnancy rates of 33.3 and 38.4% per started cycle and embryo transfer respectively.
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