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1: Fertil Steril. 1990 Jul;54(1):166-8.Links

Zygote intrafallopian transfer with "donor rescue": a new option for severe male factor infertility.

Pool TB, Martin JE, Ellsworth LR, Perez JB, Atiee SH.

Southwest Texas Methodist Hospital, San Antonio.

Clinical pregnancies have been initiated by ZIFT using zygotes produced by reinsemination of oocytes with donor sperm ("donor rescue") after an initial 15- to 20-hour exposure to husband's sperm. A total of 54 oocytes from four couples experiencing failed fertilization by husband's sperm were reinseminated with donor sperm, resulting in 38 zygotes (70.4% fertilization). Four zygotes were transferred during ZIFT in each case and resulted in two (50%) continuing pregnancies. Additional zygotes from donor reinsemination were cryopreserved for each couple. Donor rescue expands the utility of ZIFT as a treatment for male factor infertility.

PMID: 2358083 [PubMed - indexed for MEDLINE]