Document Detail


Singleton pregnancy outcomes after in vitro fertilization with fresh or frozen-thawed embryo transfer and incidence of placenta praevia.
MedLine Citation:
PMID:  24822209     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The aim of the study was to compare the single pregnancy and neonate outcome after fresh and frozen-thawed embryo transfer in the in vitro fertilization programme (IVF). The study focused on clinical and laboratory factors affecting the abnormal placentation, especially placenta praevia, in patients conceiving in the IVF programme. The results confirm that neonates born after frozen-thawed embryo transfer had significantly higher mean birth weight than after fresh embryo transfer (ET). Moreover, the birth weight distribution in singletons was found to shift towards "large for gestation" (LGA) after frozen-thawed ET. On the other hand, the pregnancies after fresh ET were characterized by a higher incidence of placenta praevia and 3rd trimester bleeding. Placenta praevia was more common in IVF patients with fresh ET in a stimulated cycle than in patients with ET in a spontaneous cycle. It occurred more frequently in patients with transfer of 2 embryos. From this point of view, single ET and ET in a spontaneous cycle should be encouraged in good prognosis patients in the future with more than two good quality embryos developed. An important issue arose of how the ovarian hormonal stimulation relates to abnormal placentation and if the serum hormone levels interfere with in the IVF treatment results.
Authors:
Sara Korosec; Helena Ban Frangez; Ivan Verdenik; Urska Kladnik; Vanja Kotar; Irma Virant-Klun; Eda Vrtacnik Bokal
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Publication Detail:
Type:  Journal Article     Date:  2014-04-13
Journal Detail:
Title:  BioMed research international     Volume:  2014     ISSN:  2314-6141     ISO Abbreviation:  Biomed Res Int     Publication Date:  2014  
Date Detail:
Created Date:  2014-05-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101600173     Medline TA:  Biomed Res Int     Country:  United States    
Other Details:
Languages:  eng     Pagination:  431797     Citation Subset:  IM    
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