title: The utility of embryo banking in order to increase the number of embryos available for preimplantation genetic screening in advanced maternal age patients.
abstract: OBJECTIVE
  to determine if embryo banking with PGS is more optimal than proceeding with PGS regardless of embryo number.
  
  
  METHODS
  patients were divided into 2 groups, group 1 were those that banked embryos and proceeded through another round of IVF prior to PGS, and group 2 underwent PGS regardless of embryo number. Group 2 was divided into group 2A (patients with >10 embryos) and group 2B (patients who had <10 embryos).
  
  
  RESULTS
  there was no difference in embryos biopsied, normal embryos, number transferred, and pregnancy rate between group 1 and 2. A significant number of patients did not have a transfer in group 2B (6/11) compared to group 1 (3/19) (P = 0.0419). There was no significance between pregnancy rates per transfer between group 1 (6/16) and group 2B (2/5).
  
  
  CONCLUSIONS
  our data suggests that banking will increase the odds of going to transfer but there was no increase in pregnancy rates.
authors.affiliation: Main Line Fertility and Reproductive Medicine, IVF Lab, 130 S. Bryn Mawr Ave., Ground Floor, D Wing, Bryn Mawr, PA 19010, USA.
authors.forename: John J
authors.initials: JJ
authors.lastname: Orris
authors.forename: Tyl H
authors.initials: TH
authors.lastname: Taylor
authors.forename: Janice W
authors.initials: JW
authors.lastname: Gilchrist
authors.forename: Susan V
authors.initials: SV
authors.lastname: Hallowell
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Glassner
authors.forename: J David
authors.initials: JD
authors.lastname: Wininger
mesh_terms: D000328:Adult; D000782:Aneuploidy; D004624:Embryo Transfer; D005260:Female; D005307:Fertilization in Vitro; D005820:Genetic Testing; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D018873:Pregnancy Rate; D019836:Preimplantation Diagnosis / Q000379:methods*; D012189:Retrospective Studies
references.citation: Reprod Biomed Online. 2002;4 Suppl 3:31-6
references.pmid: 12470562
references.citation: Reprod Biomed Online. 2004 Dec;9(6):645-51
references.pmid: 15670413
references.citation: Reprod Biomed Online. 2007 May;14(5):628-34
references.pmid: 17509208
references.citation: Hum Genet. 1999 May;104(5):376-82
references.pmid: 10394928
references.citation: Hum Reprod. 1997 Jun;12(6):1263-6
references.pmid: 9222014
references.citation: Fertil Steril. 2008 Nov;90(5 Suppl):S136-43
references.pmid: 19007612
references.citation: Reprod Biomed Online. 2008 Jul;17(1):46-52
references.pmid: 18616889
references.citation: J Assist Reprod Genet. 1998 May;15(5):297-301
references.pmid: 9604763
references.citation: Hum Reprod. 2004 Dec;19(12):2849-58
references.pmid: 15471934
references.citation: Theriogenology. 1984 May;21(5):767-90
references.pmid: 16725925
references.citation: Hum Reprod. 1995 Jul;10(7):1923-7
references.pmid: 8583011
references.citation: N Engl J Med. 2007 Jul 5;357(1):9-17
references.pmid: 17611204
references.citation: Reprod Biomed Online. 2003 Jul-Aug;7(1):91-7
references.pmid: 12930584
references.citation: Reprod Biomed Online. 2002 May-Jun;4(3):223-32
references.pmid: 12709271
references.citation: Hum Reprod. 2004 Mar;19(3):694-9
references.pmid: 14998972
references.citation: J Assist Reprod Genet. 2005 Aug;22(7-8):295-300
references.pmid: 16195826
references.citation: Fertil Steril. 1999 Nov;72(5):837-44
references.pmid: 10560987
references.citation: Fertil Steril. 2005 Aug;84(2):319-24
references.pmid: 16084871