Immature eggs matured in-lab for 2-6 h show acceptable IVF outcomes

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.

Study examines perinatal outcomes after IVF with donor vs partner sperm

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.

Transferring a good and poor quality embryo together: a meta-analysis

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.

Meta-analysis compares impact of endometriosis on IVF, obstetric and perinatal outcomes

Researchers in a 2022 study performed a systematic review and meta-analysis on women with endometriosis undergoing IVF and found no change in live birth rates, but an increased risk of obstetric and perinatal outcomes, however patients were diagnosed without laparoscopy and didn’t account for treated patients.