Epilepsy (from Ancient Greek ἐπιληψία epilēpsia) is a common and diverse set of chronic neurological disorders characterized by seizures. Some definitions of epilepsy require that seizures be recurrent and unprovoked, but others require only a single seizure combined with brain alterations which increase the chance of future seizures. In many cases a cause cannot be identified, however factors that are associated include brain trauma, strokes, brain cancer, and drug and alcohol misuse among others.

Epileptic seizures result from abnormal, excessive or hypersynchronous neuronal activity in the brain. About 50 million people worldwide have epilepsy, and nearly 90% of epilepsy occurs in developing countries. Epilepsy becomes more common as people age. Onset of new cases occurs most frequently in infants and the elderly. As a consequence of brain surgery, epileptic seizures may occur in recovering patients.

Epilepsy is usually controlled, but not cured, with medication. However, over 30% of people with epilepsy do not have seizure control even with the best available medications. Surgery may be considered in difficult cases. 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 syndromic with vastly divergent symptoms, all involving episodic abnormal electrical activity in the brain and numerous seizures.

Read more about Epilepsy:  Signs and Symptoms, Causes, Pathophysiology, Classification, Management, Epidemiology, Death, History, In Other Animals

Other articles related to "epilepsy":

Laurence Levy
... By the time of his death, Levy was a trustee of the Epilepsy Support Foundation (ESF) an organisation he helped form in 1990 ... He had a very strong interest in epilepsy beginning in the fifties when he treated Nicholas George as his 7th epilepsy patient ... and when he met Levy, he asked about forming an association to support people with epilepsy ...
Citizens United For Research In Epilepsy - Mission
... of the nation-wide prevalence and devastation of epilepsy and to increase funding to provide grants for research designed to find a cure for epilepsy ... in which the millions of children and adults with epilepsy no longer have their lives defined by life-altering and life-threatening seizures ...
Luke Quinlivan - Private Life
... He suffers from epilepsy, first diagnosed when he was 15 ... ref name=epilepsy>Cann, Linda (12 March 2011) ... "Water polo champ Luke Quinlivan talks about epilepsy brush with death" ...
Epilepsy - In Other Animals
... Epilepsy occurs in a number of other animals including dogs and cats ... It is the most common brain disorder in dogs ...
Louis Delasiauve
... He is best known for his research of epilepsy, being credited for describing three distinct types of the disease Idiopathic epilepsy Absence of physical lesions fundamentally a true ... Symptomatic epilepsy Cerebral lesions being present convulsions being a symptom and not the disease ... Sympathetic epilepsy Produced by the irradiation of abnormal impressions which can have their seat in all parts of the body except the central nervous system ...

Famous quotes containing the word epilepsy:

    We are compelled by the theory of God’s already achieved perfection to make Him a devil as well as a god, because of the existence of evil. The god of love, if omnipotent and omniscient, must be the god of cancer and epilepsy as well.... Whoever admits that anything living is evil must either believe that God is malignantly capable of creating evil, or else believe that God has made many mistakes in His attempts to make a perfect being.
    George Bernard Shaw (1856–1950)