The following results can be obtained from a PGT-A study:
Normal embryo: All cells analysed have the correct number of chromosomes and are therefore suitable for transfer.
Abnormal embryo: The alteration of one or more chromosomes is observed in all the cells analysed. For example, an extra chromosome 18 (trisomy) is responsible for Edwards’ syndrome. This embryo is not suitable for transfer.
Potential mosaic embryo: Both altered and normal cells are observed in the set of cells analysed. Depending on the characteristics of the anomalies involved, a recommendation may be made regarding considering it for transfer. This should be discussed in a genetic counselling consultation with qualified personnel.