Chesterbrook

Researchers are investigating the reproductive potential of embryos classified as complex aneuploid three or more abnormal chromosomes or chaotic six or more abnormal chromosomes through preimplantation genetic testing for aneuploidy PGT-A. This study aims to determine whether embryos initially reported to have multiple chromosomal abnormalities may still have normal chromosomal composition upon re-biopsy and reanalysis, offering the chance for transfer and live birth. The study highlights recent findings suggesting that some embryos labeled as chaotic may correct abnormalities or have been misclassified due to testing artifacts. Participants with embryos identified as complex or chaotic aneuploid by initial PGT-A will have these embryos re-biopsied. The DNA from these re-biopsy samples will be analyzed again using next generation sequencing NGS to confirm or update the chromosomal status. The study involves storing and cataloging embryos fitting these classifications for future analysis. An independent geneticist will review the genetic data blindly to ensure objective assessment. During the study, participants provide consent for the re-biopsy and reanalysis of embryos but not for embryo transfer. Assessments focus on the reproducibility of the complex or chaotic classification over one year. Researchers will monitor the genetic results to better understand the significance of multiple chromosomal abnormalities in embryos. Participation is voluntary, and decisions will not affect current or future care. The study is observational and involves no treatment interventions for participants themselves.