title: The potential use of maturation in vitro of human oocytes in low responder patients.
abstract: OBJECTIVE
  To assess whether maturation in vitro of human oocytes (MIVHO) could be an alternative treatment in low responders to ovarian stimulation for in vitro fertilization (IVF).
  
  
  METHODS
  Prospective case-control study. Spontaneously ovulatory women who volunteered were included in our program of MIVHO at the Instituto Valenciano de Infertilidad. Rates of oocyte retrieval, in vitro maturation, fertilization, and development up to the blastocyst stage were studied.
  
  
  RESULTS
  A significantly increased rate of oocyte retrieval was found when the pickup was performed before follicular selection. No differences were found when MIVHO was used in a low responder patient with an ovarian content of early antral follicles > 5 as compared to normal responders.
  
  
  CONCLUSIONS
  MIVHO could be a successful choice in low responder patients with an acceptable number of early antral follicles. Oocyte retrieval should be performed before follicular selection in order to obtain more oocytes.
authors.affiliation: Instituto Valenciano de Infertilidad, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Requena
authors.forename: F
authors.initials: F
authors.lastname: Neuspiller
authors.forename: A C
authors.initials: AC
authors.lastname: Cobo
authors.forename: M
authors.initials: M
authors.lastname: Aragonés
authors.forename: J
authors.initials: J
authors.lastname: Remohí
authors.forename: C
authors.initials: C
authors.lastname: Simón
authors.forename: A
authors.initials: A
authors.lastname: Pellicer
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D004967:Estrogens / Q000097:blood; D005260:Female; D005298:Fertility; D005307:Fertilization in Vitro / Q000379:methods*; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D007246:Infertility / Q000097:blood / Q000628:therapy*; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D009865:Oocytes / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism; D006080:Ovarian Follicle / Q000166:cytology / Q000254:growth & development / Q000378:metabolism; D010062:Ovulation Induction / Q000379:methods*; D020554:Sperm Injections, Intracytoplasmic
chemical_list: D004967:Estrogens; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone