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Benign Adult Familial Myoclonic Epilepsy

FAME


Presentation

  • We present a new family with suggestion of linkage to chromosome 2p11.1-2q12.2 (lod score value, 1.55).[ncbi.nlm.nih.gov]
  • Usually, myoclonic tremor is the presenting symptom, characterized by tremulous finger movements and myoclonic jerks of the limbs increased by action and posture. In a minority of patients, seizures are the presenting symptom.[uniprot.org]
  • The present familial case suggests that BAFME may also be a disease of the calcium channel that is present in the retina and the central nervous system (CNS).[ncbi.nlm.nih.gov]
  • Key points • Benign adult familial myoclonic epilepsy usually presents in the second decade of life with a mild hand tremor that is myoclonus-exacerbated by fatigue or emotional stress.[medlink.com]
Long Arm
  • In this study, we report that the gene locus is assigned to the distal long arm of chromosome 8, by linkage analysis in a large Japanese kindred with a maximum two-point LOD score of 4.31 for D8S555 at recombination fraction of 0 (maximum multipoint LOD[ncbi.nlm.nih.gov]

Workup

  • .), hepatotoxic medications, respiratory depressants, corticosteroids, amiodarone, acyclovir, bismuth, thallium, L-dopa Associated with systemic illness: Dialysis, renal failure, liver failure, pulmonary disease, carbon dioxide intoxication Workup Myoclonus[endoflifecare.tripod.com]
Photoparoxysmal Response
  • Photoparoxysmal responses (PPR) were noted in 18 (95%) patients with BAFME but 1 (10%) with EGTCS. CONCLUSION: Faster frequency of GSW, compared with that in EGTCS, accompanied by PPR may be characteristic EEG features of BAFME.[ncbi.nlm.nih.gov]
  • Response 3 progressive myoclonus epilepsy Spastic Paraplegia with Myoclonic Epilepsy[rgd.mcw.edu]
  • Generalized epileptiform discharges were recorded in 25% of cases, and a photoparoxysmal response in 31%.[cris.unibo.it]
  • Photoparoxysmal responses (PPR) were noted in 18 (95%) patients with BAFME but 1 (10%) with EGTCS. Faster frequency of GSW, compared with that in EGTCS, accompanied by PPR may be characteristic EEG features of BAFME.[uoeh-neurology.org]
  • VS belongs to various forms of human epilepsies and, as a trait, a photoparoxysmal response (PPR) or VS can be found in generalized or focal, idiopathic, cryptogenic, or symptomatic epilepsies, and even within the context of situation-related (acute symptomatic[epilepsyontario.org]
Multifocal Spikes
  • The classic interictal EEG finding is the hypsarrhythmia pattern, which consists of a highvoltage, disorganized background with multifocal spike and sharp waves.[euroformhealthcare.biz]
3-4 Hz Spikes
  • Her EEG showed 34 Hz spike and wave discharges. She had a daughter with childhood absence epilepsy, and two sisters and a cousin with seizures (fig 2 , family 1).[jnnp.bmj.com]
Generalized Polyspikes
  • Note the generalized polyspikes induced by eye closure. Fig. 12. Landau-Kleffner syndrome (LKS). Four-year-old girl with LKS. Language regression occurred at 3 yr of age.[euroformhealthcare.biz]
Spike-and-Slow-Waves
  • Ten- to 16-Hz rapid spikes with slow waves occur with myoclonic seizures, photosensitivity is common, and abnormalities may occur in sleep. 3.1.7. Epilepsy With GTCS on Awakening GTCS occur exclusively or predominantly shortly after awakening.[euroformhealthcare.biz]

Treatment

  • Valproates were markedly effective for its treatment. I proposed the new term "benign adult familial myoclonic epilepsy (BAFME)" for this disease.[ci.nii.ac.jp]
  • It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice .[uniprot.org]
  • Valproate, levetiracetam , and benzodiazepines are the most beneficial treatments.[medlink.com]
  • Some of the services we provide include: • Brachial Plexus Palsy treatment • Cerebral Palsy treatment • Epilepsy treatment • General Neurology treatment • Movement Disorders treatment • Neurofibromatosis Center treatment • Stroke treatment • Tuberous[neuro.wustl.edu]

Prognosis

  • Although there are advances in therapy and research in Doose Syndrome, prognosis and outcome tends to be unpredictable and varied. Prognosis is more likely to be unfavourable in children who have generalised tonic clonic seizures from the outset.[epilepsyqueensland.com.au]
  • The prognosis is worse if the spasms are either symptomatic or cryptogenic.[euroformhealthcare.biz]
  • Accurate classification of specific pediatric epilepsy syndromes can be important for prognosis and treatment. Some epilepsy syndromes are age-limited whereas others require lifelong therapy.[epilepsyfoundationmn.org]
  • Epilepsy with myoclonic astatic seizures Although in this form of epilepsy, a PPR is often found during childhood, little is known about its clinical correlates and prognosis.[epilepsyontario.org]
  • Long-term prognosis for symptomatic (secondarily) generalized epilepsies: a population-based study. Epilepsia. 2007;48(6):1128-32. Abraham A, Elena C, Melamed E, Djaldetti R. Successful treatment of truncal myoclonus.[rarediseases.org]

Etiology

  • We conclude that the etiology of BAFME remains to be solved, and further genetic studies, which may require analysis in non-coding regions of a gene, introns or intergenic spacer regions, are necessary to reveal its unknown mutations.[ncbi.nlm.nih.gov]
  • Further detailed phenotype studies and subsequent linkage analysis will help us further narrow down a candidate region for this familial condition and hopefully help identify the underlying genetic etiology.[epilepsygenetics.net]
  • The world’s foremost experts describe the phenotypes and subtypes of myoclonic epilepsies and the underlying molecular defects and summarize cutting-edge advances in molecular genetics that shed new light on the etiologies of these syndromes.[books.google.ro]
  • The book opens with a draft etiological classification that goes some way to filling the nosological void. The book is divided into three etiological categories: idiopathic, symptomatic, and provoked epilepsies.[shorvon.eu]
  • Applicable To Drug-induced myoclonus Palatal myoclonus Use Additional Use Additional Help Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology.[icd10data.com]

Epidemiology

  • From basic mechanisms and epidemiology, through diagnosis and therapy, to quality of life issues, the new edition of this established reference covers every aspect of childhood epilepsy and will continue to be the definitive core text for all professionals[books.google.de]
  • Epidemiology [ edit ] PME accounts for less than 1% of epilepsy cases at specialist centres. [ citation needed ] The incidence and prevalence of PME is unknown, but there are considerable geography and ethnic variations amongst the specific genetic disorders[en.wikipedia.org]
  • Each chapter considers topics in a consistent fashion, dealing with the phenomenon of epilepsy in each etiology, including its epidemiology, clinical features and prognosis, and any specific aspects of treatment.[shorvon.eu]
  • An epidemiological survey in Japan.[researchmap.jp]
  • Carol Camfield was a Robert Wood Johnson Foundation Clinical Scholar in epidemiology and study design at McGill University.[childneurologyfoundation.org]
Sex distribution
Age distribution

Pathophysiology

  • This clinical course could indicate that the depressive state derived from epileptic pathophysiology.[waseda.pure.elsevier.com]
  • Hyperkinetic Movement Disorders the latest edition to the Contemporary Neurology Series, will cover the signs, the pathophysiology, the genetics (where applicable), and the treatment options of each form of hyperkinetic movement disorder.[books.google.it]
  • This book discusses the pathophysiology of tremor including membrane mechanisms and rodent models, the advances in genetics and the musculoskeletal models pertinent to body oscillations.[books.google.it]
  • Academic clinicians, translational researchers and basic scientists are brought together to connect experimental findings made in different animal models to the clinical features, pathophysiology and treatment of human movement disorders.[books.google.it]

Prevention

  • Genetic causes are not directly preventable. Causes are more often preventable as the infant or young child grows older.[childneurologyfoundation.org]
  • Keep stairs blocked off as much as possible to prevent children from falling down. Children with controlled epilepsy may still ride a bicycle, however they should wear protective gear at all times and never bike alone.[know-the-ada.com]
  • Successful treatment with adrenocorticotropic hormone (ACTH) or vigabatrin can prevent further developmental regression. Many children develop other seizure types and go on to have Lennox-Gastaut syndrome (see information below). Dravet syndrome.[epilepsyfoundationmn.org]
  • This medication is directly injected into the muscles causing the involuntary jerks at relatively low doses, allowing for relaxation of the muscles, thus preventing the spasms.[bcm.edu]
  • Antiepileptic medications Anticonvulsants: Medications given to prevent seizures.[childneurologyfoundation.org]

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