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Large for gestational age babies
• This is a questionable issue. Zhu et al., 2014; and Martin et al., 2016 suggest that this happens in human and animals. It could be due to a different culture media. A study from De Vos et al., 2015 seems to refute this.
Congenital malformation
• Dar et al (2014) reported that the odds of congenital malformation were significantly higher for babies born after embryo transfer at blastocyst stage (1.29, 95% IC 1.03‐1.62).
• It was also repeated by Kallen (2010)
• Two large population based studies found no
increased rate of malformation (Chambers et al., 2015; Ginstrom Ernstad et al., 2016)
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PRECONGRESS COURSE 15 I BARCELONA, SPAIN – 1 JULY 2018 21
