[P1-2] Clinical Characteristics of Children Diagnosed as Developmental Dyslexia and Treated from Infancy
[Introduction] Understanding the pathology of developmental dyslexia (DD) and making early diagnosis are important for investigating the clinical characteristics of children manifesting early DD. We evaluated the characteristics of DD children receiving treatment from infancy in at a single institution.
[Methodology] From April 2001 to June 2015, 224 children (male 187, female 37) were diagnosed with DD in Hiratani Clinic for Developmental Disorders of Children. DD diagnosis was made according to the Japanese Practical Guidelines for Diagnosis and Treatment of Specific Developmental Disorders, combined with other tests for reading ability after school admission. We analyzed the chief complaints and comorbidities at the time of the first visit as well as language development during infancy. [Results] Twenty cases (male 18, female 2) satisfying the above criteria were found. Average total intelligence quotient was 89 (71-116). The chief complaint at initial visit was restlessness, language development delay, difficulty of inappropriate emotional responses, and poor phonological manipulation. As comorbidities Attention Deficit, Hyperactivity disorder (ADHD) was seen in 5 cases, Autism Spectrum disorder (ASD) in 3, and ASD+ADHD in 10.
[Conclusions] DD children in infancy showed developmental characteristics similar to ADHD and ASD. In such cases, DD should be considered when reading difficulty becomes clear after school admission. Considering that the reports on the effect of early intervention in DD are increasing, it is also necessary to consider its early diagnosis in children with neurodevelopmental disorders who have language development delay, with poor phonological manipulation.
[Methodology] From April 2001 to June 2015, 224 children (male 187, female 37) were diagnosed with DD in Hiratani Clinic for Developmental Disorders of Children. DD diagnosis was made according to the Japanese Practical Guidelines for Diagnosis and Treatment of Specific Developmental Disorders, combined with other tests for reading ability after school admission. We analyzed the chief complaints and comorbidities at the time of the first visit as well as language development during infancy. [Results] Twenty cases (male 18, female 2) satisfying the above criteria were found. Average total intelligence quotient was 89 (71-116). The chief complaint at initial visit was restlessness, language development delay, difficulty of inappropriate emotional responses, and poor phonological manipulation. As comorbidities Attention Deficit, Hyperactivity disorder (ADHD) was seen in 5 cases, Autism Spectrum disorder (ASD) in 3, and ASD+ADHD in 10.
[Conclusions] DD children in infancy showed developmental characteristics similar to ADHD and ASD. In such cases, DD should be considered when reading difficulty becomes clear after school admission. Considering that the reports on the effect of early intervention in DD are increasing, it is also necessary to consider its early diagnosis in children with neurodevelopmental disorders who have language development delay, with poor phonological manipulation.