Influence of cryopreservation on perinatal outcome after blastocyst‐ vs cleavage‐stage embryo transfer: systematic review and meta‐analysis

Influence of cryopreservation on perinatal outcome after blastocyst‐ vs cleavage‐stage embryo transfer: systematic review and meta‐analysis

ABSTRACT Objective To compare the perinatal outcomes of singleton pregnancies resulting from blastocyst‐ vs cleavage‐stage embryo transfer and to assess whether they differ between fresh and frozen embryo transfer cycles. Methods A systematic review of the literature was carried out using the Scopus...

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Veröffentlicht in:Ultrasound in obstetrics & gynecology 2018-01, Vol.51 (1), p.54-63
Hauptverfasser: Alviggi, C., Conforti, A., Carbone, I. F., Borrelli, R., de Placido, G., Guerriero, S.
Format: Artikel
Sprache:eng
Schlagworte:
Birth weight
Blastocyst
Childbirth & labor
Cleavage
cleavage-stage embryos
Congenital anomalies
Congenital defects
Cryopreservation
Cryopreservation - methods
Embryo Culture Techniques - methods
Embryo transfer
Embryo Transfer - methods
Embryos
Evidence-based medicine
Female
fresh cycle
frozen cycle
Humans
IVF
Literature reviews
Low birth weight
Low level
Meta-analysis
Mortality
perinatal outcome
Pregnancy
Pregnancy Rate
Premature birth
Qualitative analysis
Quantitative analysis
Reviews
Small for gestational age
Subgroups
Systematic review
Treatment Outcome
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Zusammenfassung:ABSTRACT Objective To compare the perinatal outcomes of singleton pregnancies resulting from blastocyst‐ vs cleavage‐stage embryo transfer and to assess whether they differ between fresh and frozen embryo transfer cycles. Methods A systematic review of the literature was carried out using the Scopus, MEDLINE and ISI Web of Science databases with no time restriction. We included only peer‐reviewed articles involving humans, in which perinatal outcomes of singleton pregnancies after blastocyst‐stage embryo transfer were compared with those after cleavage‐stage embryo transfer. Primary outcomes were preterm birth before 37 weeks and low birth weight (
ISSN:0960-7692
1469-0705
DOI:10.1002/uog.18942