23/12/2025
Pre-Implantation Genetic Testing for Aneuploidy (PGT-A)
PGT-A is an advanced genetic screening method used alongside IVF to assess embryos for chromosomal abnormalities before transfer. By using Next Generation Sequencing (NGS) -one of the most accurate technologies available- it provides a detailed chromosomal analysis and can detect issues such as aneuploidy and certain types of mosaicism that older techniques may not identify.
During the process, a carefully selected group of cells is biopsied from day-5 or day-6 blastocysts, and the embryos are then safely frozen while the genetic analysis is completed.
PGT-A may be especially helpful for:
• Women of advanced maternal age
• Couples with repeated IVF implantation failures or recurrent miscarriages
• Individuals or couples with known chromosomal concerns
By identifying embryos with the correct number of chromosomes, PGT-A can help improve implantation rates and lower the risk of miscarriage, supporting clearer, evidence-based decisions in family planning.