Preimplantation Genetic Diagnosis (PGD)
In a normal IVF cycle, a woman undergoes an egg retrieval and a semen sample is collected from the man. The eggs are fertilized. Once the developing embryos reach five days of age, known as the blastocyst stage, a biopsy containing 5-10 cells is removed from each embryo for genetic testing. It commonly takes 7-10 days for test results to arrive and at that time, the most genetically viable embryo(s) is selected for embryo transfer. By screening the embryos through PGD, doctors can identify “genetically normal” ones to use in IVF.
FAQ
PGD is a complex process, and the timeline can vary depending on the condition and the structure of your family. In general, from referral to embryo transfer, the process can take anywhere from eight to 18 months. A lot of the variation also depends on your natural cycle and fertility level.
a few hours
PGD and PGS require in vitro fertilization (IVF), which involves risks of ovarian hyperstimulation syndrome, multiple pregnancies, and increased risk of birth defects not related to the genetic test. Risk of biopsy or freezing harming the embryo(s).
Because this test is done after one of the stages of in vitro fertilization (IVF) (egg fertilization stage), so like performing the egg's puncture stage from the mother, after short anesthesia and a few hours of rest, the mother can continue her daily activities.
PGD may be recommended for mothers with advanced maternal age or a history of miscarriage.

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