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An epileptic seizure, informally known as a seizure, is a period of symptoms due to abnormally excessive or synchronous neuronal activity in the brain. Outward effects vary from uncontrolled shaking movements involving much of the body with loss of consciousness, to shaking movements involving only part of the body with variable levels of consciousness, to a subtle momentary loss of awareness. Most of the time these episodes last less than two minutes and it takes some time to return to normal. Loss of bladder control may occur.
Oxcarbazepine, sold under the brand name Trileptal among others, is a medication used to treat epilepsy. For epilepsy it is used for both focal seizures and generalized seizures. It has been used both alone and as add-on therapy in people with bipolar disorder who have had no success with other treatments. It is taken by mouth.
Ruben Kuzniecky is an Argentine neurologist who is Vice-chair academic affairs and professor of neurology at Northwell Health specializing in the field of epilepsy, epilepsy surgery and neuro-imaging.
Psychogenic non-epileptic seizures (PNES), which have been more recently classified as functional seizures, are events resembling an epileptic seizure, but without the characteristic electrical discharges associated with epilepsy. PNES fall under the category of disorders known as functional neurological disorders (FND), also known as conversion disorders. These are typically treated by psychologists or psychiatrists. PNES has previously been called pseudoseizures, psychogenic seizures, and hysterical seizures, but these terms have fallen out of favor.
In the field of neurology, temporal lobe epilepsy is an enduring brain disorder that causes unprovoked seizures from the temporal lobe. Temporal lobe epilepsy is the most common type of focal onset epilepsy among adults. Seizure symptoms and behavior distinguish seizures arising from the medial temporal lobe from seizures arising from the lateral (neocortical) temporal lobe. Memory and psychiatric comorbidities may occur. Diagnosis relies on electroencephalographic (EEG) and neuroimaging studies. Anticonvulsant medications, epilepsy surgery and dietary treatments may improve seizure control.
The postictal state is the altered state of consciousness after an epileptic seizure. It usually lasts between 5 and 30 minutes, but sometimes longer in the case of larger or more severe seizures, and is characterized by drowsiness, confusion, nausea, hypertension, headache or migraine, and other disorienting symptoms.
Ring chromosome 20, ring-shaped chromosome 20 or r(20) syndrome is a rare human chromosome abnormality where the two arms of chromosome 20 fuse to form a ring chromosome. The syndrome is associated with epileptic seizures, behaviour disorders and intellectual disability.
Generalized epilepsy is a form of epilepsy characterised by generalised seizures with no apparent cause. Generalized seizures, as opposed to focal seizures, are a type of seizure that impairs consciousness and distorts the electrical activity of the whole or a larger portion of the brain.
Geschwind syndrome, also known as Gastaut-Geschwind, is a group of behavioral phenomena evident in some people with temporal lobe epilepsy. It is named for one of the first individuals to categorize the symptoms, Norman Geschwind, who published prolifically on the topic from 1973 to 1984. There is controversy surrounding whether it is a true neuropsychiatric disorder. Temporal lobe epilepsy causes chronic, mild, interictal changes in personality, which slowly intensify over time. Geschwind syndrome includes five primary changes; hypergraphia, hyperreligiosity, atypical sexuality, circumstantiality, and intensified mental life. Not all symptoms must be present for a diagnosis. Only some people with epilepsy or temporal lobe epilepsy show features of Geschwind syndrome.
Norman Geschwind was a pioneering American behavioral neurologist, best known for his exploration of behavioral neurology through disconnection models based on lesion analysis.
A generalized tonic–clonic seizure, commonly known as a grand mal seizure or GTCS, is a type of generalized seizure that produces bilateral, convulsive tonic and clonic muscle contractions. Tonic–clonic seizures are the seizure type most commonly associated with epilepsy and seizures in general and the most common seizure associated with metabolic imbalances. It is a misconception that they are the sole type of seizure, as they are the main seizure type in approximately 10% of those with epilepsy.
Progressive Myoclonic Epilepsies (PME) are a rare group of inherited neurodegenerative diseases characterized by myoclonus, resistance to treatment, and neurological deterioration. The cause of PME depends largely on the type of PME. Most PMEs are caused by autosomal dominant or recessive and mitochondrial mutations. The location of the mutation also affects the inheritance and treatment of PME. Diagnosing PME is difficult due to their genetic heterogeneity and the lack of a genetic mutation identified in some patients. The prognosis depends largely on the worsening symptoms and failure to respond to treatment. There is no current cure for PME and treatment focuses on managing myoclonus and seizures through antiepileptic medication (AED).
Post-traumatic epilepsy (PTE) is a form of acquired epilepsy that results from brain damage caused by physical trauma to the brain. A person with PTE experiences repeated post-traumatic seizures more than a week after the initial injury. PTE is estimated to constitute 5% of all cases of epilepsy and over 20% of cases of acquired epilepsy.
Epilepsy and driving is a personal and safety issue. A person with a seizure disorder that causes lapses in consciousness may be putting the public at risk from their operation of a motor vehicle. Not only can a seizure itself cause an accident, but anticonvulsants often have side effects that include drowsiness. People with epilepsy are more likely to be involved in a traffic accident than people who do not have the condition, although reports range from minimally more likely up to seven times more likely.
An epileptologist is a neurologist who specializes in the treatment of epilepsy. Epileptologists are experts in epileptic seizures and seizure disorders, anticonvulsants, and special situations involving seizures, such as cases in which all treatment intended to stop seizures has failed and epilepsy in pregnant women. Some epileptologists specialize in treatment of epilepsy in children.
Generally, seizures are observed in patients who do not have epilepsy. There are many causes of seizures. Organ failure, medication and medication withdrawal, cancer, imbalance of electrolytes, hypertensive encephalopathy, may be some of its potential causes. The factors that lead to a seizure are often complex and it may not be possible to determine what causes a particular seizure, what causes it to happen at a particular time, or how often seizures occur.
Myoclonic astatic epilepsy (MAE), also known as myoclonic atonic epilepsy or Doose syndrome, is a generalized idiopathic epilepsy. It is characterized by the development of myoclonic seizures and/or myoclonic astatic seizures. Some of the common monogenic causes include mutations in the genes SLC6A1 (3p25.3),CHD2 (15q26.1), AP2M1 (10q23.2).
The Mischer Neuroscience Institute is a combined research and education effort between the Vivian L. Smith Department of Neurosurgery and the Department of Neurology at McGovern Medical School at UTHealth Houston and Memorial Hermann Hospital. Located in Houston, the Institute draws patients from around the world for specialized treatment of diseases of the brain and spine. It was the first center in Texas and one of only a few institutions in the country to fully integrate neurology, neurosurgery, neuroradiology, neuro-oncology, spine surgery, pain medicine and neurorehabilitation.
Hal Blumenfeld is a Professor of Neurology, Neuroscience, and Neurosurgery at Yale University. He is an expert on brain mechanisms of consciousness and on altered consciousness in epilepsy. As director of the Yale Clinical Neuroscience Imaging Center (CNIC) he leads multi-disciplinary research and is also well known for his teaching contributions in neuroanatomy and clinical neuroscience.
Jacqueline A. French is an American neurologist. She is a Professor in the Department of Neurology at the New York University Grossman School of Medicine and Academic Division Director of Epilepsy. French became the Chief Scientific Officer of the Epilepsy Foundation in 2015 after previously serving as the President and Vice-President of the American Epilepsy Society.
References
- ↑ Hall of Fame Archived 2018-11-18 at the Wayback Machine , Columbia High School. Accessed November 12, 2018.
- ↑ Jake Tapper; Karen Travers. "President Obama Defends Right to Choose Best Care". ABC News.
- ↑ "Tilray Announces Medical Advisory Board". www.businesswire.com. 2017-06-05. Retrieved 2019-07-26.
- ↑ "Orrin Devinsky, M.D." NYU Langone Medical Center. Retrieved 26 October 2013.
