Cumulative ongoing pregnancy and live birth rates after assisted reproduction among women with diminished ovarian reserve: A multi-institutional retrospective cohort study.

AIM: To examine the cumulative ongoing pregnancy/live birth rate per patient by encompassing all embryo transfer (ET) cycles associated with a single oocyte retrieval cycle among women with diminished ovarian reserve (DOR), and to investigate whether serum anti-Müllerian hormone (AMH) levels can predict a live birth success.

METHODS

This multi-institutional retrospective cohort study included infertile women with DOR (AMH <1.1 ng/mL) who began their first cycle of in vitro fertilization and/or intracytoplasmic sperm injection between January and December 2021. Outcomes using the retrieved embryos were evaluated for up to four ET cycles.

RESULTS

Of 606 patients, 113 did not undergo ET. A total of 605 ET cycles were analyzed. Clinical pregnancy and ongoing pregnancy/live birth rates per ET cycle were significantly dependent on age, not AMH levels. Ongoing pregnancy/live birth rates per patient increased significantly with higher AMH levels. A significant difference in the cumulative ongoing pregnancy/live birth rate was observed depending on whether cases with no remaining embryos were included among the censored cases.

CONCLUSION

Assisted reproductive technology (ART) outcomes per ET cycle in women with DOR were similar to those reported in the Japanese ART registry without distinguishing DOR. The greater the number of good-quality embryos that can be frozen, the higher the expected cumulative live birth rate.