Biologic and morphologic development of donated human ova recovered by nonsurgical uterine lavage

摘要: Using uterine lavage performed 5 days after the luteinizing hormone peak, we collected 25 ova from five fertile donors who had a single, periovular artificial insemination. After examination, all recovered were transferred to recipient uteri and resulted in three intrauterine one tubal pregnancy. Morphologic development ranged degenerating single-cell mature blastocysts. Ages of at recovery 93.5 130.0 hours postovulation. Mean age blastocysts, 109.1 hours, was not significantly different mean 20 less ova, 108.1 hours. Neither interval insemination for blastocysts nor ovulation intervals other ova. The pregnancies recipients. There no transfers (p than 0.004). A 12-cell ovum with blastomeres associated pregnancy recipient. large variability state observed relatively fixed postovulatory this study appears be due differences viability maturation, age. Maturational time transfer significant determinant likelihood ensuring