PGS is preimplantation genetic screening and is testing to confirm that the correct number of chromosomes (46) is present in an embryo. When there is an extra chromosome present (trisomy) conditions such as Down’s Syndrome (trisomy 21) is diagnosed.
At Texas IVF, Dr. Alfred J. Rodriguez now offers the most technologically advanced method of preimplantation genetic testing by CGH microarray. Microarray analysis allows for molecular karyotyping for all 23 pairs of chromosomes, and assessment for both aneuploidy (abnormal number of chromosomes) and structural abnormalities (changes that alter the content of chromosomes).
This minimizes the risk of passing known or suspected genetic disorders and helps identify healthy embryos which improves the likelihood of a successful IVF outcome. Patients that may benefit from testing are those with a family history of genetic disorders, history of recurrent pregnancy loss, long term unexplained infertility, multiple unsuccessful IVF cycles, advanced maternal age, and severe male factor infertility.
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Last updated: Nov 21, 2017 2:57 pm