title: [Effect of blood concentrations of preovulatory estradiol on the quality of eggs and pre-embryos in patients treated with fertilization in vitro].
abstract: The objective was to investigate if the preovulatory estradiol concentrations obtained during controlled ovarian hyperstimulation (COH) have effect on reproductive outcome. The study included a total of 198 in vitro fertilization (IVF) cycles. Patients were divided into four groups according to serum preovulatory estradiol concentrations. In low responder patients was observed significantly decreased oocyte and preembryo quality compared with normal or high responders (P < 0.01). In this work high response do not have effect on IVF outcome. The clinical results indicate that low estradiol levels the day of hCG administration are apparently correlated with poor oocyte and embryo quality.
authors.affiliation: Centro Especializado para la Atención de la Mujer, Hospital Angeles de las Lomas, Huixquilucan, México.
authors.forename: A
authors.initials: A
authors.lastname: Kably Ambe
authors.forename: J
authors.initials: J
authors.lastname: Barrón Vallejo
authors.forename: R C
authors.initials: RC
authors.lastname: Tapia Lizárraga
authors.forename: S K
authors.initials: SK
authors.lastname: Krivitsky
mesh_terms: D000328:Adult; D004958:Estradiol / Q000097:blood*; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D010060:Ovulation; D010063:Ovum; D015053:Zygote
chemical_list: D004958:Estradiol
vernacular_title: Efecto de las concentraciones séricas de estradiol preovulatorio en la calidad de óvulos y preembriones en pacientes tratadas con fertilización in vitro.