Abusheikha N, Marcus S, Akagbosu F, Avery S, Brinsden P
Bourn Hall Clinic, UK.
Hum Reprod. 1998 Aug;13(8):2130-1. doi: 10.1093/humrep/13.8.2130.
We report the delivery of non-identical twins resulting from the combined transfer of one fresh and one frozen embryo to a 31 year old patient. To our knowledge, this is the first reported case where both a fresh and a frozen embryo implanted in the same cycle led to non-identical twins. We conclude that supernumerary embryos after in-vitro fertilization should be frozen and used in subsequent cycles, with implantation potentials as high as fresh embryos. The possibility of mixing fresh and frozen embryos, though rarely needed, should be considered, particularly when there is only one fresh embryo available for transfer.
我们报告了一名31岁患者通过移植一枚新鲜胚胎和一枚冷冻胚胎而成功分娩异卵双胞胎的病例。据我们所知，这是首例报道的在同一周期内移植新鲜胚胎和冷冻胚胎均成功着床并诞下异卵双胞胎的病例。我们得出结论，体外受精后的多余胚胎应予以冷冻，并用于后续周期，其着床潜力与新鲜胚胎一样高。应考虑新鲜胚胎与冷冻胚胎混合移植的可能性，尽管这种情况很少需要，尤其是当仅有一枚新鲜胚胎可供移植时。
