Landau Kleffner Syndrome (LKS) is a rare neurological disorder that affects a child's ability to understand and use spoken language. It is characterized by a sudden and progressive loss of language skills, usually beginning between the ages of three and seven. Symptoms may include difficulty understanding spoken language, difficulty speaking, and difficulty with reading and writing. In some cases, seizures may also occur. Treatment typically involves speech and language therapy, medications, and sometimes surgery.

The main symptom of Landau Kleffner Syndrome is a sudden and severe loss of language and communication skills. Other symptoms may include:

- Difficulty understanding spoken language

- Difficulty speaking

- Difficulty with reading and writing

- Difficulty with social interaction

- Seizures

- Abnormal EEG (electroencephalogram)

- Behavioral problems

- Hyperactivity

- Aggression

- Sleep disturbances

The exact cause of Landau Kleffner Syndrome is unknown, but it is believed to be related to abnormal brain development or a disruption in the normal development of language skills. It is also thought to be caused by a combination of genetic and environmental factors.

The primary treatment for Landau Kleffner Syndrome is a type of therapy called auditory-verbal therapy (AVT). This type of therapy focuses on teaching the child to listen and respond to language. It also helps the child to develop language skills and improve communication. Other treatments may include medications such as anticonvulsants, steroids, and speech-language therapy. In some cases, surgery may be recommended to remove the part of the brain that is causing the seizures.

1. Age: Landau Kleffner Syndrome typically occurs in children between the ages of 3 and 7.

2. Gender: Landau Kleffner Syndrome is more common in males than females.

3. Genetics: There is a genetic component to Landau Kleffner Syndrome, as it is more likely to occur in children with a family history of the disorder.

4. Brain Injury: Children who have suffered a traumatic brain injury may be at an increased risk of developing Landau Kleffner Syndrome.

5. Infections: Certain infections, such as meningitis, may increase the risk of developing Landau Kleffner Syndrome.

There is no known cure for Landau Kleffner Syndrome, but medications such as anticonvulsants, corticosteroids, and speech therapy may help improve symptoms.