Pregnancy outcomes from more than 1,800 in vitro fertilization cycles with the use of 24-chromosome single-nucleotide polymorphism–based preimplantation genetic testing for aneuploidy

Autor: J. Glenn Proctor, M. Kiehl, Zachary Demko, Matthew Rabinowitz, C. Givens, Alexander Simon, E. Fischer, M. Bush
Rok vydání: 2018
Předmět:
Zdroj: Fertility and Sterility. 110:113-121
ISSN: 0015-0282
Popis: Objective To measure in vitro fertilization (IVF) outcomes following 24-chromosome single‒nucleotide-polymorphism (SNP)–based preimplantation genetic testing for aneuploidy (PGT-A) and euploid embryo transfer. Design Retrospective. Setting Fertility clinics and laboratory. Patient(s) Women 20–46 years of age undergoing IVF treatment. Intervention(s) Twenty-four-chromosome SNP-based PGT-A of day 5/6 embryo biopsies. Main Outcome Measure(s) Maternal age–stratified implantation, clinical pregnancy, and live birth rates per embryo transfer; miscarriage rates; and number of embryo transfers per patient needed to achieve a live birth. Result(s) An implantation rate of 69.9%, clinical pregnancy rate per transfer of 70.6%, and live birth rate per transfer of 64.5% were observed in 1,621 nondonor frozen cycles with the use of SNP-based PGT-A. In addition, SNP-based PGT-A outcomes, when measured per cycle with transfer, remained relatively constant across all maternal ages; when measured per cycle initiated, they decreased as maternal age increased. Miscarriage rates were ∼5% in women ≤40 years old. No statistically significant differences in pregnancy outcomes were found for single-embryo transfers (SET) versus double-embryo transfers with SNP-based PGT-A. On average, 1.38 embryo transfers per patient were needed to achieve a live birth in nondonor cycles. Conclusion(s) Our findings that SNP-based PGT-A can mitigate the negative effects of maternal age on IVF outcomes in cycles with transfer, and that pregnancy outcomes from SET cycles are not significantly different from those of double-embryo transfer cycles, support the use of SET when transfers are combined with SNP-based PGT-A.
Databáze: OpenAIRE