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Risks of extended culture
3. By committing to ET on blastocyst stage there is a risk of loosing some embryos which might not survive extended culture but might have survived in vivo had it been transferred to the uterus.
The main advantage of day 5 embryo transfer is to have a higher pregnancy rate
• Q: what do you mean by higher pregnancy rate? – Clinical pregnancy rate after fresh embryo transfer Or
– Cumulative pregnancy rate per started cycle
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