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Year : 2019  |  Volume : 2  |  Issue : 2  |  Page : 66-73

The use of preimplantation genetic testing for aneuploidy and mitochondrial DNA scoring helps in improving assisted reproductive techniques outcome

Department of Reproductive Medicine, Mother and Child Hospital, New Delhi, India

Correspondence Address:
Dr. Jasneet Kaur
Mother and Child Hospital, D.59 Defence Colony, New Delhi - 110 024
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/tofj.tofj_13_19

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Background: Aneuploidy is a leading cause of implantation failure and miscarriage. Preimplantation genetic testing for aneuploidy (PGT-A) with mitoscore enables screening of viable euploid embryos, thereby improving in vitro fertilization (IVF) outcome. Aim of the study: The aim of this study is to determine if the use of PGT-A in patients with valid indications can help improve assisted reproductive techniques outcome. Materials and Methodology: All patients undergoing IVF-PGT-A cycles between April 2016 and March 2018 were included (n = 42) in the study. Patients were compared with a control group consisting of fresh or frozen blastocyst transfers selected by morphology, during the same period (n = 226). Trophectoderm samples were subjected to chromosome analysis and mitoscore assessment using next-generation sequencing. Single-embryo transfer was done according to transfer priority determined by mitoscore. Statistical Analysis: The Chi-square test was used for comparisons between the study groups with respect to percentages. A value of P <0.05 was considered as statistically significant. Results: The indications for PGT-A in our patients were advanced maternal age 33%, followed by recurrent pregnancy loss 25%, recurrent implantation failure 19%, previous history of aneuploidy 16%, and severe male factor 6%. An ongoing pregnancy rate (OPR) of 61% versus 48% (P = 0.0049) was achieved with PGT-A versus controls, respectively. Thirty-two percent of patients did not have any euploid embryos for transfer. Conclusion: Offering PGT-A with mitoscore for valid indications seems to be an impressive tool to increase implantation and OPRs and helps in counseling patients for further course of treatment.

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