Embryoman
Evidence up to 2022 shows that a single PGT-A biopsy is highly concordant (similar) with the rest of the embryo when the embryo is aneuploid or euploid, but not when it’s mosaic or segmental.
Researchers in a 2022 study compared outcomes from mature M2 eggs and M1-M2 eggs that underwent “rescue in vitro maturation” and found that M2 eggs had improved fertilization, blastocyst conversion and euploidy rates, with no difference in pregnancy or live birth rates.
Small studies find that some chaotic embryos can be euploid after PGT-A rebiopsy, while a case report details a live birth after the transfer of a chaotic embryo.
Researchers in a 2022 study compared perinatal outcomes after IVF using donor sperm and found a reduction in preterm births, low birth weights and congenital anomalies compared to babies conceived using partner sperm.
Researchers in a 2022 study found that women with low β-hCG (<149 mUI/ml) are more likely to have a preterm delivery and abnormal placental pathologies compared to women with higher β-hCG.
Researchers in a 2022 study found no difference in live birth rates in those that transferred embryos by standard timing or timing established by the ERA.
Researchers in a 2022 study performed a meta-analysis to combine the results of 8 ERA studies and found no differences in live birth, pregnancy and miscarriage rates among women who performed the ERA or didn’t.
Researchers in a 2022 study performed a meta-analysis to combine the results of studies examining the transfer of a good and poor quality embryo together (vs one good quality embryo alone), and found no differences in pregnancy or live birth rates, but increases in the rate of multiples.
Researchers in a 2022 study compared timing of euploid transfers and found that 160 h was optimal for modified natural FETs, while they found no optimal time for natural FETs.
Researchers in a 2022 study performed a meta-analysis on the impact of acupuncture on FET outcomes and found that there were improvements in clinical pregnancies but not live birth rates, with most included studies small.
