Neurodevelopmental Disorders Comorbid with Deafness in Children: A Systematic Review of Previous Studies

The comorbidity of neurodevelopmental disorders regarding deafness has been confirmed in several studies, which further emphasizes the necessity of paying more attention to diagnostic and rehabilitation approaches in this field. The primary objective of the present study was to provide a systematic review of neurodevelopmental disorders which are associated with deafness in children. The present review study was conducted and obtained through comprehensive search and utilizing keywords including: deafness, comorbid disorder, neurodevelopmental disorder, and hearing impairment in Web of Science, Google Scholar, ScienceDirect databases that had been published between 2009 and 2019. Ultimately, 23 scientific papers were chosen in accordance with the primary objective of the research project and the inclusion criteria & research findings were then extracted. Out of the 24 chosen papers, 13 papers (56.52%) had focused on etiology and the prevalence of disorders, 7 papers (30.43%) had focused on evaluation, 3 papers (13.04%) had focused on rehabilitation and intervention. A. Bearing in mind that comorbid disorders affect the effectiveness of intervention programs and treatments such as hearing aids, cochlear implants, and rehabilitation, it is considered essential to pay close attention to expert evaluations and experts' knowledge & awareness regarding the early diagnosis of comorbid disorders which are associated with deafness