Pregnancy outcome and live birth after IVF and ICSI according to embryo quality.

Abstract:

PURPOSE:The pregnancy outcome and the chances of birth were assessed according to embryo quality after IVF or ICSI. METHODS:The implantation rate (IR), the loss of gestational sacs rate (LGSR), and birth rate (BR) were determined according to the cleavage stage and the integrity of blastomeres after day-2 homogeneous embryo transfers (n = 1812). RESULTS:The LGSR was higher after transfers of 2-3-cell or 5-6-cell embryos and was significantly increased when more than 20% of the embryo volume was fragmented in 4-cell embryos. After transfers of 4-cell embryos without fragmentation, the BR was significantly higher than the BR after transfers of 4-cell embryos with 1-20% fragmentation (16.6% vs 13.1%). The difference was the consequence of a higher IR (20.4% vs 17.3%) but also of a lower LGSR (18.9% vs 24.2%). CONCLUSIONS:Not only implantation and the ability to give a pregnancy, but also the capacity to give a live birth are dependent on the embryo quality.

journal_name

J Assist Reprod Genet

authors

Fauque P,Léandri R,Merlet F,Juillard JC,Epelboin S,Guibert J,Jouannet P,Patrat C

doi

10.1007/s10815-007-9115-z

subject

Has Abstract

pub_date

2007-05-01 00:00:00

pages

159-65

issue

5

eissn

1058-0468

issn

1573-7330

journal_volume

24

pub_type

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