Effects of PGT-A on Pregnancy Outcomes for Young Women Having One Previous Miscarriage with Genetically Abnormal Products of Conception.

In this retrospective study, the effect of preimplantation genetic testing for aneuploidy (PGT-A) was evaluated in women younger than 38 years with a history of one prior miscarriage and embryonic chromosomal abnormalities were detected in previous products of conception (POCs). Abnormal karyotypes were detected in POCs at our center between January 2014 and December 2017. Of the women included in this analysis, 124 continued with conventional in vitro fertilization/intracytoplasmic sperm injection cycles (non-PGT-A group) and 93 chose PGT-A cycles (PGT-A group), and the pregnancy outcomes in both groups were compared. Although the clinical pregnancy rate per embryo transfer was significantly higher in the PGT-A group (67.23% vs. 51.85%, p-adj = 0.01), no between-group differences were found in the live birth rate or miscarriage rate (45.38% vs. 40.74%, p-adj = 0.59; 16.25% vs. 14.29%, p-adj = 0.15). Women in both groups had comparative cumulative live birth rates (PGT-A vs. non-PGT-A, 58.06% vs. 53.23%, p = 0.48). The main results of this study suggest that PGT-A is not associated with an increased likelihood of a live birth or a decreased rate of miscarriage among women younger than 38 years without recurrent pregnancy loss and with a history of POCs with embryonic chromosomal abnormalities.