title: Prognostic value of objective semen parameters in an in vitro fertilization program.
abstract: OBJECTIVE
  The basic semen parameters seem to have a limited predictive value in male fertility. Could other objective sperm analyses be helpful in the choice of the most adapted assisted procreation technique?
  
  
  METHODS
  This study concerns 78 infertile couples with insemination failures. For each semen, 21 objective parameters are analyzed in fresh semen and after sperm selection procedure. The 78 couples are then included in an IVF protocol and classified into two groups: fertile (at least one cleaved embryo is obtained) and infertile.
  
  
  RESULTS
  Using multiple variant discriminant factorial analysis, we have found nine nonconventional parameters which induce us to define two classes of semen. These two classes fit with the classification into fertile and infertile groups in 74.4% of the cases.
  
  
  CONCLUSIONS
  So these parameters allow us to predict the chance of obtaining embryos during an IVF trial and to choose for each couple the most appropriate technique: IVF or ICSI.
authors.affiliation: Departement de Procréation Médicalement Assistée, Centre Médico-Chirurgical et Obstétrical, Schiltigheim, France.
authors.forename: C
authors.initials: C
authors.lastname: Wittemer
authors.forename: S
authors.initials: S
authors.lastname: Warter
authors.forename: J
authors.initials: J
authors.lastname: Ohl
authors.forename: B
authors.initials: B
authors.lastname: Sudan
authors.forename: A
authors.initials: A
authors.lastname: Mache
authors.forename: P
authors.initials: P
authors.lastname: Dellenbach
mesh_terms: D000176:Acrosin / Q000032:analysis; D000177:Acrosome / Q000737:chemistry / Q000187:drug effects / Q000502:physiology; D000328:Adult; D000001:Calcimycin / Q000494:pharmacology; D002118:Calcium / Q000502:physiology; D002467:Cell Nucleus / Q000648:ultrastructure; D004624:Embryo Transfer; D005260:Female; D005298:Fertility; D005307:Fertilization in Vitro; D006801:Humans; D007476:Ionophores / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D011379:Prognosis; D012661:Semen / Q000166:cytology*; D013076:Sperm Count; D013081:Sperm Motility; D013094:Spermatozoa / Q000648:ultrastructure
chemical_list: D007476:Ionophores; D000001:Calcimycin; D000176:Acrosin; D002118:Calcium