Preimplantation Genetic Diagnosis (PGD)

ZIVA fertility clinic also offers Preimplantation genetic diagnosis (PGD) through single gene testing. Preimplantation genetic diagnosis (PGD) is a procedure used in your IVF treatment prior to implantation which identifies a specific single gene disorder like cystic fibrosis in the embryo. PGD and PGS are slightly different from each other.

PGS screens for chromosomal abnormalities that may be present in the embryo, while PGD will look for some specific chromosomal abnormality in the embryo. PGD is useful if you and your partner are at a risk to a particular chromosomal disorder. This test is commonly used to identify disorders like cystic fibrosis, sickle-cell anaemia, Huntington’s disease, thalassemia, Tay-Sachs disease, spinal muscular atrophy.

Steps involved in a PGD:

1. Cells are collected from the fertilized embryo for a preimplantation genetic diagnostic test. 
2. The DNA of the cell is then analyzed for the inherited gene that may be problematic in the embryo.
3. Once the test is over, the embryo which is normal will be placed into your uterus.
4. Few normal embryos may be preserved for future use. This procedure may take a week for testing.

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