Pregnancies resulting from assisted reproductive techniques are at higher risk of adverse
perinatal outcomes compared with spontaneous conceptions. Underlying infertility and IVF …

Background Frozen embryo transfer is associated with better perinatal outcome regarding
preterm birth and low birthweight, yet higher risk of large for gestational age and …

The freeze-all strategy is gaining popularity worldwide as an alternative to the conventional
fresh embryo transfer. It consists of cryopreservation of the entire embryo cohort and the …

Objective To investigate whether obstetric and perinatal outcomes in pregnancies differ after
different frozen embryo transfer (FET) protocols. Design Register-based cohort study. Setting …

STUDY QUESTION When do the differences in birth weights become apparent between
singletons born after frozen embryo transfer (FET) and fresh embryo transfer (fresh ET) …

Background The endometrial preparation during frozen embryo transfer (FET) can be
performed by natural cycle (NC), hormone replacement therapy (HRT) cycle and cycle with …

OBJECTIVE: Several studies have shown higher pregnancy rates and better perinatal
outcomes with frozen embryo transfers than with fresh techniques, with better results in …

STUDY QUESTION Does endometrial thickness (EMT) have an impact on singleton
birthweight in frozen embryo transfer (FET) cycles? SUMMARY ANSWER An EMT< 8 mm …

Currently, more than 9 million American adults, including women of childbearing age, use
electronic-cigarettes (e-cigs). Further, the prevalence of maternal vaping now approaching …

Background Improvements in vitrification and frozen embryo transfer (FET) technologies
have rapidly increased, and some evidence suggests that FET may increase pregnancy …