title: The 2004 Italian legislation regulating assisted reproduction technology: a multicentre survey on the results of IVF cycles.
abstract: BACKGROUND
  The new Italian law, passed in 2004, regulating assisted reproduction technology imposes that no more than three oocytes can be fertilized at one time and that all embryos obtained must be transferred simultaneously. Oocyte cryopreservation is allowed while embryo cryostorage is banned. The aim of this study was to evaluate the clinical impact of these limitations.
  
  
  METHODS
  Seven Italian infertility centres were invited to collect data on IVF cycles performed over the first 4 months of application of the new legislation. As a control, all centres provided data on cycles performed in the same solar period, 1 year before.
  
  
  RESULTS
  Data from 1861 cycles were obtained, 961 in the pre-law period and 900 in the post-law period. Pregnancy rate per oocyte retrieval and rate of multiple pregnancies in the pre- and post-law periods were 27.0 and 24.2% (P=0.18) and 25.8 and 20.9% (P=0.11) respectively. However, the prohibition to freeze embryos does appear to have markedly reduced the cumulative rate of success.
  
  
  CONCLUSIONS
  The rate of success of IVF-ICSI cycles using fresh embryos is not significantly influenced by the new legislation while the prohibition to freeze embryos seems to result in a more relevant impact.
authors.affiliation: Infertility Unit, 'Policlinico--L. Mangiagalli' Hospital, Milano, Reproductive Medicine Unit, ANDROS Day Surgery, Palermo (Palermo I), Italy. g.ragni@icp.mi.it
authors.forename: G
authors.initials: G
authors.lastname: Ragni
authors.forename: A
authors.initials: A
authors.lastname: Allegra
authors.forename: P
authors.initials: P
authors.lastname: Anserini
authors.forename: F
authors.initials: F
authors.lastname: Causio
authors.forename: A P
authors.initials: AP
authors.lastname: Ferraretti
authors.forename: E
authors.initials: E
authors.lastname: Greco
authors.forename: R
authors.initials: R
authors.lastname: Palermo
authors.forename: E
authors.initials: E
authors.lastname: Somigliana
mesh_terms: D000328:Adult; D015925:Cryopreservation; D003625:Data Collection; D004624:Embryo Transfer / Q000706:statistics & numerical data; D005260:Female; D005307:Fertilization in Vitro / Q000331:legislation & jurisprudence* / Q000706:statistics & numerical data; D006801:Humans; D015994:Incidence; D007558:Italy / Q000453:epidemiology; D009865:Oocytes; D011247:Pregnancy; D018873:Pregnancy Rate; D011272:Pregnancy, Multiple / Q000706:statistics & numerical data; D020554:Sperm Injections, Intracytoplasmic / Q000331:legislation & jurisprudence* / Q000706:statistics & numerical data