Genetic disorder screening
PGD is a technique used to assess embryos for genetic diseases and chromosomal abnormalities. It involves the removal of one or more cells from embryos before they are transferred. The cells are then screened for any genetic disease that is known to be carried in the family. PGD can be used to look for single-gene disorders (inherited diseases caused by a single faulty gene) and chromosomal translocations. Unaffected embryos can then be selected for re-implantation. This protects resulting children from inheriting the disease.
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Advantages of PGD
Who is PGD suitable for?
PGD is primarily used for individuals/couples who are known carriers or suffers of inherited disease. There are over 4000 conditions caused by single-gene mutations which can be tested for using PGD. Some of the most common are Huntington’s disease, cystic fibrosis and sickle-cell anaemia.