When does someone show symptoms of Arts syndrome?
Boys with Arts syndrome start showing symptoms before they are two years old. Although the symptoms can be different from one boy to the next, deafness, muscle problems, and intellectual disability are usually seen before the age of two. Females may never show any signs or symptoms of Arts syndrome. For those that do have symptoms, young adult women may experience some hearing loss in their 20s and they may also develop mild muscle problems. These include hypotonia (low muscle tone), ataxia (poor muscle control), and hyperreflexia (overactive reflexes). Arts syndrome has only been described in a very small number of people. Because of this, the medical community still has much to learn about the disorder including when symptoms typically develop.
de Brouwer APM, Duley JA, Christodoulou J. Arts syndrome. 2008 Oct 21 [Updated 2011 Mar 29]. In: Pagon RA, Adam MP, Ardinger HH, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2016. Available from: http://www.ncbi.nlm.nih.gov/books/NBK2591/