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Long-Term Follow-Up of Auditory Agnosia as a Sequel of Herpes Encephalitis in a Child

National Institute of Mental Health National Center of Neurology and Psychiatry National Center Hospital for Mental, Nervous and Muscular Disorders Chiba and Tokyo, kaga{at}ncnp-k.go.jp

Mitsuko Shindo, PhD

Department of Communication Disorders Hiroshima Prefectural College of Health and Welfare Hiroshima

Kimitaka Kaga, MD PhD

Department of Otorhinolaryngology Tokyo University School of Medicine Tokyo, Japan

We report a pediatric patient with auditory agnosia as a sequel of herpes encephalitis. His early development was completely normal. He uttered three words at 12 months old. Disease onset was 1 year and 2 months of age. He was discharged from the hospital seemingly with no sequel; however, he could not recover his intelligible words even at age 2 years. He was diagnosed as having auditory agnosia caused by bilateral temporal lobe injury. We began to train him at once, individually and intensively. Adult patients with pure auditory agnosia followed by two episodes of temporal lobe infarction have impairment in central hearing but not inner language. Therefore, they can communicate by reading and writing. Moreover, impairment in hearing is not always severe and is often transient. However, despite long-term (more than 15 years) energetic education and almost normal intellectual ability (Performance IQ of Wechsler Intelligence Scale for Children-Revised was 91), our patient's language ability was extremely poor. Cerebral plasticity could not work fully on our patient, whose bilateral temporal lobe was severely injured in early childhood. The establishment of a systematic training method in such patients is an urgent objective in this field. (J Child Neurol 2000;15:626-629).

Journal of Child Neurology, Vol. 15, No. 9, 626-629 (2000)
DOI: 10.1177/088307380001500911


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