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2004 MAY 6 - (NewsRx.com & NewsRx.net) -- Intracytoplasmic sperm injection works when oocytes have abnormal structures.
According to recent research from Israel, "a couple with unexplained infertility was referred for routine in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) treatment. Ovulation was induced by the GnRH analogue protocol combined with human menopausal gonadotropin (HMG) and human chorionic gonadotropin (HCG). Preparation of denuded oocytes revealed a major disorder of the zona pellucida and abnormal oocytes.
"During preparation of ova for ICSI, 15 retrieved oocytes were denuded, 14 of which underwent ICSI treatment. Four of the oocytes collapsed and the remaining 10 appeared to have irregular, fragile zona pellucida. Nevertheless, following ICSI, seven low-quality embryos developed, three of which were transferred into the uterus," wrote G. Paz and colleagues, Tel Aviv Sourasky Medical Center, Lis Maternal Hospital.
"Two implantations were achieved, but only one embryo resulted in an uneventful pregnancy and delivery by ...
Source: HighBeam Research, Intracytoplasmic sperm injection works when oocytes have abnormal...