Abstract
Trophectoderm cells extruded from the expanding blastocyst provide meaningful genetic information regarding reproductive competence. The number of cells removed at biopsy may be a function of the number of cells present in a dividing blastocyst, and a surrogate marker for embryo quality. We hypothesized that the number of trophectoderm cells identified in a biopsy sample could predict blastocyst quality and that the number of biopsied cells could be a marker of test performance. This study sought to evaluate whether the number of cells obtained at biopsy is correlated with the preimplantation testing (PGT) result.
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