Psychological impact of predictive testing for colonic cancer.

Advances in DNA technology have facilitated presymptomatic testing for an inherited predisposition to a number of autosomal dominant cancer syndromes. While testing is generally undertaken with informed consent and within a counselling protocol, there is still much to be learned about the psychological impact of DNA testing in a predictive setting. In this study, patients' experiences were recorded using in-depth interview techniques following earlier testing for hereditary non-polyposis colorectal cancer which was coordinated through an hereditary cancer registry. Thematic analysis of the transcripts revealed consistent issues pertaining to identity as well as emotional responses to previous preventative strategies and ongoing cancer screening options.