Placental volume and other first-trimester outcomes: are there differences between fresh embryo transfer, frozen-thawed embryo transfer and natural conception?

ConclusionsPlacental volume and other first-trimester parameters are modified by IVF with fresh ET and FET as compared with natural conception, but with opposite trends. Given the different protocols used for these techniques, hormonal treatment per se may have a major impact on pregnancy outcomes through the modification of placental invasiveness.
Source: Reproductive BioMedicine Online - Category: Reproduction Medicine Source Type: research