title: Oocyte quality in patients with severe ovarian hyperstimulation syndrome.
abstract: OBJECTIVE
  To study the oocyte quality in patients with ovarian hyperstimulation syndrome (OHSS).
  
  
  METHODS
  Retrospective study.
  
  
  METHODS
  The Egyptian IVF-ET Center.
  
  
  METHODS
  Forty-two patients who developed severe OHSS (group A) were studied for the mean number of oocytes retrieved, percentage of high-quality oocytes, embryo quality, and fertilization, implantation, and pregnancy rates; these patients were compared with an age-matched control group who did not develop OHSS (group B; n = 183) after superstimulation for IVF or intracytoplasmic sperm injection.
  
  
  METHODS
  In vitro fertilization and ICSI.
  
  
  METHODS
  Fertilization and pregnancy rates.
  
  
  RESULTS
  In group A, the mean number of oocytes retrieved was significantly higher, whereas the percentage of high-quality oocytes and the fertilization rate were significantly lower than that in group B. There were no statistically significant differences in the quality of embryos transferred or the implantation or pregnancy rate between the groups. The percentage of high-quality oocytes and the fertilization rate were significantly lower in patients with polycystic ovaries (PCO) in both groups.
  
  
  CONCLUSIONS
  The inferior quality and maturity of oocytes in OHSS reduced the fertilization rate but did not affect the quality or the number of embryos transferred or the pregnancy rate. The effect on oocyte quality could be due to the prevalence of PCO in this group of patients.
authors.affiliation: Egyptian IVF-ET Center, Maadi, Cairo, Egypt.
authors.forename: M A
authors.initials: MA
authors.lastname: Aboulghar
authors.forename: R T
authors.initials: RT
authors.lastname: Mansour
authors.forename: G I
authors.initials: GI
authors.lastname: Serour
authors.forename: A M
authors.initials: AM
authors.lastname: Ramzy
authors.forename: Y M
authors.initials: YM
authors.lastname: Amin
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007315:Insemination, Artificial; D009865:Oocytes / Q000473:pathology*; D016471:Ovarian Hyperstimulation Syndrome / Q000473:pathology* / Q000628:therapy*; D011247:Pregnancy / Q000706:statistics & numerical data*; D011256:Pregnancy Outcome; D012189:Retrospective Studies; D016896:Treatment Outcome