Are there any developmental problems associated with OA?
In the usual setting, the answer is ‘No’. However, one or two very rare events have been documented, in which a chromosomal deletion (a loss of a piece of the chromosome including the X-linked OA gene and a number of other genes in the same area) occurs, rather than a “misprint” within the OA gene itself. Children with this deletion may have deafness, developmental retardation, and mildly shortened stature compared to their unaffected siblings.
