Blakemore JK, Trawick EC, Grifo JA, Goldman KN. Prognostic role of preimplantation genetic testing for aneuploidy in medically indicated fertility preservation.
Fertil Steril 2020;
113:408-416. [PMID:
31973902 DOI:
10.1016/j.fertnstert.2019.09.040]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 11/26/2022]
Abstract
OBJECTIVE
To investigate the use of preimplantation genetic testing for aneuploidy (PGT-A) among patients pursuing embryo banking (EB) for medically indicated fertility preservation (FP).
DESIGN
Retrospective cohort.
SETTING
University-affiliated fertility center.
PATIENTS
All patients who underwent in vitro fertilization with or without PGT-A for medically indicated FP between January 2014 and April 2018.
INTERVENTIONS
None MAIN OUTCOME MEASURES: EB cycle characteristics, subsequent cycle pursuit/outcomes, and frozen embryo transfer (FET) outcomes.
RESULTS
A total of 58 medical EB cycles were compared; 34 cycles used PGT-A. Of the EB patients with breast cancer, 67% used PGT-A; other indications were evenly divided between PGT-A (FP/PGT-A) and no PGT-A (FP). PGT-A use increased over the study period. Groups were similar in age, days of stimulation, and days from initial FP consultation to treatment initiation. Number of oocytes (14.5 [2-63] FP vs. 17.5 [1-64] FP/PGT-A), 2PN zygotes (7 [1-38] FP vs. 9 [0-36] FP/PGT-A), and blastocysts (5.5 [0-22] FP vs. 5 [0-18] FP/PGT-A) cryopreserved were similar between groups. Equal numbers cryopreserved both oocytes and embryos (5 vs. 3). Five FP/PGT-A patients underwent a second EB cycle. Among FP/PGT-A patients, an average of 6.7 ± 5 blastocysts underwent PGT-A, with 3.5 ± 3 (48.2%) euploid embryos cryopreserved for future FET compared to an average of 7.2 ± 7 untested embryos in the FP group.
CONCLUSION
PGT-A in medical EB cycles increased over time and did not limit the use of other FP methods such as oocyte cryopreservation. In some cases, poor PGT-A results informed patients to pursue a second EB cycle. When counseling patients, the prognostic benefits of PGT-A must be weighed against the financial costs and potential for "terminal" fertility diagnosis.
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