Comparative neonatal outcomes in singleton births from blastocyst transfers or cleavage-stage embryo transfers: a systematic review and meta-analysis.

CONCLUSIONS: The risks of preterm and very preterm births increased after fresh blastocyst transfers versus the risks after fresh cleavage-stage embryo transfers. However, in frozen embryo transfers, there were no differences. Blastocyst embryo transfers resulted in high risks of infants who were large for gestational age, and cleavage-stage embryo transfers resulted in high risks of infants who were small for gestational age. PMID: 28472983 [PubMed - in process]

https://www.ncbi.nlm.nih.gov/pubmed/28472983?dopt=Abstract

Source: Reproductive Biology - May 4, 2017 Category: Reproduction Medicine Authors: Wang X, Du M, Guan Y, Wang B, Zhang J, Liu Z Tags: Reprod Biol Endocrinol Source Type: research