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Preimplantation Genetic Diagnosis: A Family Choice

For families with autosomal-dominant neurological conditions, the fear of passing on the disease to their children looms large. Now, people at this highest genetic risk can ensure that they have healthy children by undergoing in vitro fertilization followed by genetic testing of embryos prior to implantation. Called preimplantation genetic diagnosis, the procedure remains rarely used, largely because few people know about it, and even fewer realize they can use it simply if they are at risk, and without having to find out their own genetic status. But even once the decision is made, couples who opt for PGD face obstacles such as high cost and invasive procedures.