How is epileptic encephalopathy treated?
Hormonal and immune therapies are at the forefront of treatment in many cases, with traditional antiepileptic drugs and surgery (when an identifiable lesion is present) playing a limited role. However, gold standard evidence for treatment of epileptic encephalopathies remains limited.
What causes early infantile epileptic encephalopathy?
EIEE can be caused by mutations in the ARX gene. This is a regulatory gene involved in brain development, and it is thought that a reduction in the protein produced by the ARX gene is the main effect of the ARX mutation. Changes in genes not located on the X chromosome can also cause infantile spasms in rare cases.
What is early infantile epileptic encephalopathy?
Early Infantile Epileptic Encephalopathy (EIEE) is a neurological disorder characterized by seizures. The disorder affects newborns, usually within the first three months of life in the form of epileptic seizures.
Is ohtahara syndrome fatal?
Some children will die in infancy; others will survive but usually have severe handicaps.
How is epileptic encephalopathy diagnosed?
The EEG often evolves to atypical hypsarrhythmia which is transient or multifocal spike and sharp waves 3-4 months after the onset of the disease. The diagnosis of these epileptic encephalopathies begins with an EEG which should include both the sleep and wake states.
What causes epileptic encephalopathy?
The most common causes of epileptic encephalopathy in infancy are structural abnormalities, either congenital (such as malformations of cortical development) or acquired (such as hypoxic-ischemic insults).
Is epileptic encephalopathy genetic?
Early infantile epileptic encephalopathy is genetically heterogeneous; in addition to STXBP1 and ARX, we will highlight other genes with their associated clinical presentation (e.g. cyclin-dependent kinase-like 5 (CDKL5) and solute carrier family 25 member 22 (SLC25A22)) in other sections of this guide.
How is ohtahara syndrome diagnosed?
The EEG is the most important test in making a diagnosis of Ohtahara syndrome. The EEG is very abnormal with a burst suppression pattern (high amplitude spikes followed by little brain activity or flattening of the brain waves).
Is epileptic encephalopathy epilepsy?
Epileptic encephalopathies are an epileptic condition characterized by epileptiform abnormalities associated with progressive cerebral dysfunction. In the classification of the International League Against Epilepsy eight age-related epileptic encephalopathy syndromes are recognized.
How rare is epileptic encephalopathy?
West Syndrome or Infantile Spasms or Salaam Spasms/Tics West Syndrome, a well-known form of epileptic encephalopathy first described in 1841 by James West, has a 0.16–0.42 incidence in thousand births [6].
Is ohtahara syndrome curable?
There are several treatment options used to manage Ohtahara syndrome, but there is not a cure. These treatments can help reduce the frequency and severity of the seizures, but they are not effective in managing developmental problems.
Is epileptic encephalopathy fatal?
Discussion: The results show EIEE as a severe disease associated with a premature mortality, evidenced by a very young age at death.
How common is ohtahara syndrome?
Epidemiology. Incidence has been estimated at 1/100 000 births in Japan and 1/50,000 births in the U.K. Approximately 100 cases total have been reported but this may be an underestimate. since OS neonates with early death may escape clinico-EEG diagnosis. Male cases slightly predominate those of females.