title: Short versus long gonadotropin-releasing hormone analogue suppression protocols in advanced age women undergoing IVF/ICSI.
abstract: OBJECTIVE
  To compare the effective of two GnRH-a protocols for ovarian stimulation in advanced age women undergoing IVF/ICSI cycles.
  
  
  METHODS
  A total of 1149 IVF-ET/ICSI cycles were retrospectively identified. The cycles were divided two groups, namely a long-protocol group and a short-protocol group.
  
  
  RESULTS
  The numbers of oocytes retrieved, and high-quality embryos in the long-protocol group were significantly greater than those in the short-protocol group. In the long-protocol group, the implantation and pregnancy rates were 17.22% and 33.67%, respectively, and these values were significantly higher than those in the short-protocol group (8.24% and 15.96%, p < 0.05).
  
  
  CONCLUSIONS
  Our study demonstrated that the long protocol was superior to the short protocol for advanced age women.
authors.affiliation: a Center for Reproductive Medicine, The Third Affiliated Hospital of Sun Yat-Sen University , Guangzhou , China and.
authors.forename: Jianping
authors.initials: J
authors.lastname: Ou
authors.affiliation: a Center for Reproductive Medicine, The Third Affiliated Hospital of Sun Yat-Sen University , Guangzhou , China and.
authors.forename: Weijie
authors.initials: W
authors.lastname: Xing
authors.affiliation: a Center for Reproductive Medicine, The Third Affiliated Hospital of Sun Yat-Sen University , Guangzhou , China and.
authors.forename: Tao
authors.initials: T
authors.lastname: Li
authors.affiliation: b Center for Reproductive Medicine, The First Affiliated Hospital of Sun Yat-Sen University , Guangzhou , China.
authors.forename: Yubin
authors.initials: Y
authors.lastname: Li
authors.affiliation: b Center for Reproductive Medicine, The First Affiliated Hospital of Sun Yat-Sen University , Guangzhou , China.
authors.forename: Yanwen
authors.initials: Y
authors.lastname: Xu
authors.affiliation: b Center for Reproductive Medicine, The First Affiliated Hospital of Sun Yat-Sen University , Guangzhou , China.
authors.forename: Canquan
authors.initials: C
authors.lastname: Zhou
mesh_terms: D000328:Adult; D002985:Clinical Protocols; D010064:Embryo Implantation; D004624:Embryo Transfer / Q000379:methods*; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000008:administration & dosage*; D006801:Humans; D010062:Ovulation Induction / Q000379:methods*; D011247:Pregnancy; D018873:Pregnancy Rate; D020554:Sperm Injections, Intracytoplasmic / Q000379:methods*
chemical_list: D007987:Gonadotropin-Releasing Hormone
keywords: GnRH analogue; long protocol; short protocol