Epilepsy
Epilepsy
is a common chronic neurological disorder characterized by recurrent
unprovoked seizures. These seizures are transient signs and/or symptoms
of abnormal, excessive or synchronous neuronal activity in the brain.
About 50 million people worldwide have epilepsy at any one time. Epilepsy
is usually controlled, but not cured, with medication, although surgery
may be considered in difficult cases. However, over 30% of people with
epilepsy do not have seizure control even with the best available medications.
Not all epilepsy syndromes are lifelong – some forms are confined
to particular stages of childhood. Epilepsy should not be understood
as a single disorder, but rather as a group of syndromes with vastly
divergent symptoms but all involving episodic abnormal electrical activity
in the brain.