To evaluate whether the effect of de novo mutated balanced reciprocal translocation on the rate of euploid embryos varied from inherited balanced reciprocal translocation.
A retrospective cohort study compared the percentage of euploid embryo and the proportion of patients with at least one euploid embryo between de novo mutated balanced reciprocal translocation (i.e. the group of de novo mutated carriers) and inherited balanced reciprocal translocation (i.e. the group of inherited carriers).
An academic fertility center.
A total of 413 couples with balanced reciprocal translocation (219 female carriers and 194 male carriers) who underwent their first cycle of preimplantation genetic testing for structural rearrangements (PGT-SR) were included.
Carriers of balanced reciprocal translocation either de novo mutated or inherited.
The percentage of euploid embryo and the proportion of patients with at least one euploid embryo.
Carriers of the de novo mutated balanced reciprocal translocation had a lower percentage of euploid embryos (19.5% vs. 25.5%; P = 0.027), and less likely to have at least one euploid embryo (47.1% vs. 60.1%; P = 0.029) compared with the carrier of the inherited balanced reciprocal translocation. In the male-carrier subgroup, the percentage of euploid embryos (16.7% vs. 26.7%; P = 0.009) and the proportion of patients with at least one euploid embryo (41.9% vs. 67.5%; P = 0.002) were lower among the de novo mutated carriers than the inherited carriers. However, in the female-carrier subgroup, there was no statistically significant difference in the percentage of euploid embryos (22.4% vs. 24.4%; P = 0.586) or the proportion of patients with at least one euploid embryo (52.3% vs. 53.7%; P = 0.864) between the de novo mutated carriers and the inherited carriers.
The de novo mutated balanced reciprocal translocation was associated with a lower percentage of euploid embryos and a lower chance of obtaining at least one euploid embryo compared with the inherited balanced reciprocal translocation.
Copyright © 2023. Published by Elsevier Inc.
