Quality Issues in Clinical Genetic Services

Initially genetic disorders were all considered as rare diseases. At present, in the mid of 2009, the OMIM catalogue contains information on more than 12 000 entries of which about 2500 are available for clinical testing based on the identification of the responsible gene defect. However, altogether it has been estimated that about 8 percent of a population in the economically developed countries will during their lifetime suffer from a disease mainly as the result of their genetic constitution. Adding to that, it is estimated that all diseases have a genetic component, which will determine who will be at a higher than average risk for a certain disorder. Further it is postulated that in the near future, this genetic profiling could become useful in selecting an appropriate therapy adapted to the genetic constitution of the person. Thus, genetic disorders are not rare.