Blastocyst vs cleavage-stage embryo transfer: systematic review and meta-analysis of reproductive outcomes.

Wellington Paula MartinsC O NastriL RienziS Z van der PoelC GraciaC Racowsky

Published in: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology (2017)

Current evidence shows no superiority of blastocyst compared with cleavage-stage embryo transfer in clinical practice. As the quality of the evidence for the primary outcomes is low, additional well-designed RCTs are still needed before robust conclusions can be drawn. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.

Keyphrases

systematic review
clinical practice
meta analyses
dna binding
quality improvement
transcription factor
insulin resistance
weight loss