PGD (Preimplantation Genetic Diagnosis), is a process that
allows genetic testing of an embryo prior to implantation and before pregnancy
occurs. The procedure coincides with In-Vitro Fertilization (IVF) and uses only
embryos analyzed as being free of a specific genetic disorder to be transferred
for pregnancy.
PGD is broadly used to refer to any testing performed on an
embryo prior to it being transferred to the uterus. However, there is a
difference in the terms PGD and PGS.
PGD, Preimplantation Genetic Diagnosis, is a test looking
for a specific genetic condition (like cystic fibrosis, sickle cell disease,
muscular dystrophy) prior to transfer
PGS, Preimplantation Genetic Screening, is testing for
overall chromosomal normalcy in embryos. PGS is not looking for a specific
disease diagnosis - it is screening the embryo for normal chromosome numbers.
By testing the chromosomes of the embryos available for
transfer, fertility clinics can discard embryos with abnormal chromosomal
arrangements and pick the embryo(s) for transfer from those with normal
chromosomes.
If you answer Yes to any of these questions, PGD could be
helpful for you:
• Are
you a woman over the age of 35?
• Have
you suffered from several miscarriages?
• Have
you had a previous pregnancy with a chromosome abnormality?
• Has
a past IVF cycle been unsuccessful for you?
• Does
low sperm count play a role in your difficulty to conceive?
• Are
you aware of any family history of genetic diseases? For example: cystic
fibrosis, muscular dystrophy or Huntington disease
• Do
you want to choose the gender of your child?
Visit our website to read our clients most FAQs about PGS
& PGS: http://www.vcrmed.com/other-services/genetic-screening/pgd-and-pgs/
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