Landau kleffner syndrome lks is a rare, childhood neurological disorder characterized by the sudden or gradual development of aphasia the inability to understand or express language and an abnormal electroencephalogram eeg. Landaukleffner syndrome was described in 1957 in 6 children. The most important lesson from 83,000 brain scans daniel amen tedxorangecoast duration. Toutes les informations et documents contenus dans ce site sont fournis. My daughter developed normally and hit all of her milestones on time or early.
The condition should be suspected if a child with normal development shows a fairly abrupt loss of established language. Landaukleffner syndrome is characterized by acquired aphasia and paroxysmal, sleepactivated eeg paroxysms predominating over the temporal or parieto. At eight months, months, she started saying dada, and by ten months, she had a burst of words that included kitty and even thank you. Landau kleffner syndrome was described in 1957 in 6 children. Landaukleffner syndrome is a rare childhoodonset epileptic encephalopathy. Landaukleffnersyndrom aphasie, epileptische, erworbene aphasie, erworbene epileptische erworbene dysphasie im kindesalter mit krampfanfallen. Landaukleffner syndrome lks begins between 2 and 8 years of age average 5 to 7 years.
Specifically, the eeg typcally shows an increase to nearly continuous abnormal brain activity firing spikes. Pdf landaukleffner syndrome is a rare childhoodonset epileptic encephalopathy. Rossi pg1, parmeggiani a, posar a, scaduto mc, chiodo s, vatti g. It is named after william landau and frank kleffner, who characterized it in 1957 with a. Landau kleffner syndrome lks is a rare and underdiagnosed epilepsy syndrome. A copy of the license is included in the section entitled gnu free documentation license. All children with lks have abnormal electrical brain waves that can be documented by an electroencephalogram eeg, a recording of the electric activity of the brain. A child with lks has a progressive loss of language abilities understanding and speaking after previously developing normally for their age. Objectives define landau kleffner syndrome lks understand course of lks osymptoms otreatment oprognosis neurodiagnostic studies 3. It also blindsides them with autisticlike symptoms and severe aggression.
Landaukleffner syndrome definition of landaukleffner. There are many similarities between csws and lks, and the type of. Landaukleffner syndrome must be considered in the differential diagnosis. Permission is granted to copy, distribute andor modify this document under the terms of the gnu free documentation license, version 1.
Kleffner, who identified six children with the disorder. Landau kleffner syndrome is a rare childhoodonset epileptic encephalopathy. Olson f abstract acquired epileptic aphasia, or landaukleffner syndrome lks, once thought to be a rare syndrome, may occur more frequently in the pediatric population than once thought. Children with lks typically develop normally until signs and symptoms of the syndrome begin to develop between age 2 and 8 years. It usually occurs in children between the ages of 3 and 9 and affects the area of the brain that controls speech and comprehension. For language access assistance, contact the ncats public information officer.
Ohiiqhu 6\qgurph zdv auvw ghvfulehg e\ landau kleffner and 1957, where six described previously healthy patients develop loss of recep. Landau kleffner syndrome lks or acquired epileptic aphasia was first described by landau and kleffner in 1957 with the report of six children with convulsive disorders and acquired aphasia 1. Landaukleffner syndrome lks is a childhood disorder. Aug 11, 2017 landau kleffner syndrome lks is a rare neurological syndrome characterized by the sudden or gradual development of aphasia the inability to understand or express language and recurrent seizures epilepsy. The condition should be suspected if a child with normal development shows a. Objectives define landaukleffner syndrome lks understand course of lks osymptoms otreatment oprognosis neurodiagnostic studies 3. The condition should be suspected if a child with normal. You wont find landau kleffner variant in the medical diagnostic manuals though. A major feature of lks is the gradual or sudden loss of the ability to understand and use spoken language. These children will have developed speech normally and then, suddenly or gradually lose language skills for no apparent reason. Landaukleffner syndrome a neurologic condition primarily affecting young age 37 children, which is characterised by acquired aphasia and an abnormal eegspike and wave discharges and multifocal spikeswith lesions in brocas and. Landaukleffner syndrome lks is an acquired aphasic syndrome occurring in a previously normal child and probably is a variant of csws.
With lks overnight seizures in the temporal lobes rob children of their speech. Landaukleffner syndrome causas, sintomas, diagnostico e. Landaukleffner syndrome a neurologic condition primarily affecting young age 37 children, which is characterised by acquired aphasia and an abnormal eegspike and wave discharges and multifocal spikeswith lesions in brocas and wernickes areas, which control comprehension and speech. Landau kleffner syndrome an overview sciencedirect topics.
Acquired epileptic aphasia in children anne marie tharpe barbara j. Genetic and rare diseases information center gard po box 8126, gaithersburg, md 208988126 tollfree. Landaukleffner syndrome lksalso called infantile acquired aphasia, acquired epileptic aphasia or aphasia with convulsive disorderis a rare childhood neurological syndrome. Landaukleffner syndrome lks is a rare neurological syndrome characterized by the sudden or gradual development of aphasia the inability to understand or express language and recurrent seizures epilepsy. Landau kleffner syndrome acquired aphasia with epilepsy by genevieve v. Lks may also be called infantile acquired landaiacquired epileptic aphasia or aphasia with convulsive disorder.
Landau kleffner syndrome lks begins between 2 and 8 years of age average 5 to 7 years. Landaukleffner syndrome lks usually has an onset between three and seven years old. May 19, 20 the most important lesson from 83,000 brain scans daniel amen tedxorangecoast duration. It is named after william landau and frank kleffner, who characterized it in 1957 with a diagnosis of six children.
Landaukleffner syndrome lks is a rare, childhood neurological disorder characterized by the sudden or gradual development of aphasia the inability to understand or express language and an abnormal electroencephalogram eeg. Genetic and rare diseases information center gard po box 8126, gaithersburg, md 208988126. Sep 21, 2007 landau kleffner syndrome lks is a childhood disorder. Landaukleffner syndrome is an epileptic encephalopathy characterized by acquired verbal auditory aphasia and seizures in most of the patients associated with continuous or almost continuous spikeandwave discharges during slow wave sleep.
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