title: Is there an ideal stimulation regimen for IVF for poor responders and does it change with age?
abstract: OBJECTIVE
  To determine whether there is a superior treatment modality for 'poor' responders.
  
  
  METHODS
  Retrospective analysis of three stimulation regimens, with patients stratified based on age, stimulation regime and response in previous cycles ("poor' responder or "non poor" responder). Fertilisation, embryo utilisation and clinical pregnancy rates were assessed. There were a total of 1,608 cycles in the 'poor' responder and 8,489 cycles in the 'non poor' responder groups.
  
  
  RESULTS
  In 'poor' responders there was no significant difference in fertilisation rate, nor utilisation rate between the three stimulation regimes and no differences in the pregnancy rate/initiated cycle irrespective of age and stimulation regimen in any of the groups. 'Non poor' responders had a significantly greater pregnancy rate/initiated cycle for all stimulation regimens in both age groups compared with 'poor' responders.
  
  
  CONCLUSIONS
  This large retrospective study of 'poor' responders has not shown a difference in pregnancy rates/initiated cycle between stimulation regimens.
authors.affiliation: Department of Obstetrics and Gynaecology, Monash University, Clayton, Victoria, 3168, Australia. beverley.vollenhoven@med.monash.edu.au
authors.forename: Beverley
authors.initials: B
authors.lastname: Vollenhoven
authors.forename: Tiki
authors.initials: T
authors.lastname: Osianlis
authors.forename: James
authors.initials: J
authors.lastname: Catt
mesh_terms: D000328:Adult; D000367:Age Factors; D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods* / Q000592:standards; D006801:Humans; D008297:Male; D010062:Ovulation Induction / Q000379:methods* / Q000592:standards; D011247:Pregnancy; D012189:Retrospective Studies