Landau-Kleffner Syndrome in Children

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What is Landau-Kleffner syndrome?

Landau-Kleffner Syndrome (LKS) is a rare neurological disorder that causes a loss of language skills (aphasia). It can happen either suddenly or gradually. LKS usually occurs in children between ages 3 and 7 and can affect the child’s ability to speak, understand language or both. Many children with LKS also have seizures.

LKS is often difficult to diagnose because it can resemble other conditions, such as autism and pervasive developmental disorder.

Care for Landau-Kleffner syndrome

The Augmentative Communication Program at Boston Children's Hospital treats LKS. Our program is known internationally for its work with children and adults who are non-speaking or whose speech is severely impaired. The program provides comprehensive, state-of-the-art evaluation and treatment for children and adults with communication disorders.

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