How accurate is PGD?
Genetic analysis of single cells is technically demanding and prone to various errors. Also, the early human embryo has a relatively high incidence of genetically diverse cells which if used for genetic analysis could occasionally result in misdiagnosis. For these reasons, you should be aware that we cannot be 100% accurate with the diagnosis for each embryo. However, reagents and equipment are extensively tested beforehand and we do everything we can to minimise technical errors. Only very few misdiagnoses have been reported and it is difficult to make a reliable estimate of the likely incidence in your specific case. PGD substantially lowers the risk of having a child with an inherited disorder. However, if you do become pregnant after treatment, you should consider having conventional prenatal diagnosis (CVS or amniocentesis) to confirm that your baby is not affected.
