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<meta name="keywords" content="C0877017, bilateral tonic-clonic seizure with focal onset, disease or syndrome, fbtcs - focal to bilateral tonic-clonic seizure, focal seizure with secondary generalisation, focal seizure with secondary generalization, focal to bilateral tonic-clonic epileptic seizure, focal to bilateral tonic-clonic seizure, generalised tonic-clonic seizure with focal onset, generalised tonic-clonic seizure with partial onset, generalised tonic-clonic seizures with focal onset, generalized tonic-clonic seizure with focal onset, generalized tonic-clonic seizure with partial onset, generalized tonic-clonic seizures with focal onset, generalized tonic-clonic seizures, secondary, partial seizure with secondary generalisation, partial seizure with secondary generalization, partial seizures with secondary generalisation, partial seizures with secondary generalization, secondarily generalised tonic-clonic seizure, secondarily generalised tonic-clonic seizures, secondarily generalized tonic-clonic seizure, secondarily generalized tonic-clonic seizures, secondary generalised tonic clonic seizures, secondary generalised tonic-clonic seizures, secondary generalized tonic clonic seizures, secondary generalized tonic-clonic seizures, autosomal dominant, autosomal recessive, birth defects, chromosomal disease, chromosome, clinical features, clinical findings, clinical genetics, clinical recommendations, clinvar, congenital chromosomal disease, consumer genetic resources, cytogenetic location, disease characteristics, disease definitions, disease descriptions, disease ontology, disease synonyms, disease vocabulary, dysmorphology, entrez, familial disease, gene, gene-disease relationship, genereviews, genetic disease, genetic disorder, genetic terminology, genetic testing registry, genetics home reference, genomic disease, gtr, hereditary disease, heritable disease, hpo, human phenotype ontology, inherited disease, management guidelines, maternal inheritance, medgen, medical genetics, medical subject headings, mesh, mitochondrial inheritance, mode of inheritance, national center for biotechnology information, national institutes of health, national library of medicine, ncbi, nih, nlm, omim, ordo, orphanet, paternal inheritance, phenome, position statements, professional practice guidelines, rare disease, reference sequence, refseq, snomed ct, syndrome, undiagnosed diseases, x-linked recessive" /><meta name="description" content="A bilateral tonic-clonic seizure with focal onset is a focal-onset seizure which progresses into a bilateral tonic-clonic phase." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Bilateral tonic-clonic seizure with focal onset (Concept Id: C0877017)
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<!--
UID=164077
ConceptID=C0877017
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Bilateral tonic-clonic seizure with focal onset</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>164077</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0877017</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>Generalized tonic-clonic seizures, secondary; Secondary generalized tonic clonic seizures; Secondary generalized tonic-clonic seizures</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Focal to bilateral tonic-clonic epileptic seizure (246544003); Focal to bilateral tonic-clonic seizure (246544003); FBTCS - focal to bilateral tonic-clonic seizure (246544003)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>HPO:</td>
<td><a target="_blank" title="Human Phenotype Ontology" href="https://hpo.jax.org/app/browse/term/HP:0007334">HP:0007334</a></td></tr>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Definition">Definition</h1><a sid="100" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">A bilateral tonic-clonic seizure with focal onset is a focal-onset seizure which progresses into a bilateral tonic-clonic phase. [from <a title="Human Phenotype Ontology" href="http://www.human-phenotype-ontology.org" class="defSource" target="_blank">HPO</a>]</div>
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<div class="portlet mgSection" id="ID_118">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Term_Hierarchy">Term Hierarchy</h1><a sid="118" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln HierarchyGTR"><div class="jig-ncbitabs"><ul><li><a href="#tabGTR">GTR</a></li><li><a href="#tabMGEN">MeSH</a></li></ul><div id="tabGTR"><div class="search_result"><div class="rprts"><div class="chiclet_legend"><span class="chiclet_list" style="position:static;"><span title="Clinical test" class="chiclet Ccolor round">C</span><span>Clinical test,  </span><span title="Research test" class="chiclet Rcolor round">R</span><span>Research test,  </span><span title="OMIM" class="chiclet Ocolor ">O</span><span>OMIM,  </span><span title="GeneReview" class="chiclet Gcolor">G</span><span><em>GeneReviews</em>,  </span><span title="ClinVar" class="chiclet Vcolor">V</span><span>ClinVar  </span></span></div><div id="hierarchy" class="margin_t1"><div class="ds_tree"><ul><li class="matched_ds"><span class="chiclet_list"><span class="chiclet unavailable round" title="Clinical test">C</span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline">Bilateral tonic-clonic seizure with focal onset</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/1254" ref="tree=MeSH" title="MedGen record for Fetal anomaly">Fetal anomaly</a></span><ul><li><span class="TLline"><a href="/medgen/474891" ref="tree=MeSH" title="MedGen record for Congenital Systemic Disorder">Congenital Systemic Disorder</a></span><ul><li><span class="TLline"><a href="/medgen/105425" ref="tree=MeSH" title="MedGen record for Abnormality of the nervous system">Abnormality of the nervous system</a></span><ul><li><span class="TLline"><a href="/medgen/868417" ref="tree=MeSH" title="MedGen record for Abnormal nervous system physiology">Abnormal nervous system physiology</a></span><ul><li><span class="TLline"><a href="/medgen/20693" ref="tree=MeSH" title="MedGen record for Seizure">Seizure</a></span><ul><li><span class="TLline"><a href="/medgen/199670" ref="tree=MeSH" title="MedGen record for Focal-onset seizure">Focal-onset seizure</a></span><ul><li><span class="matched_ds">Bilateral tonic-clonic seizure with focal onset</span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></div></div></div></div>
</div>
<div class="portlet mgSection" id="ID_112">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Conditions_with_this_feature">Conditions with this feature</h1><a sid="112" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat">
<div class="divPopper rprt" id="rdis_79465"><div><strong>Landau-Kleffner syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>79465</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0282512</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">GRIN2A-related disorders encompass a broad phenotypic spectrum that includes developmental delay evolving to intellectual disability (DD/ID), epilepsy, speech and language disorders, movement disorders, and neuropsychiatric disorders. Intellect ranges from normal to profoundly impaired. Observed speech disorders include dysarthria and speech dyspraxia, and both receptive and expressive language delays; more mildly affected individuals may display subtly impaired intelligibility of conversational speech. Epilepsy features include seizure onset usually between ages three and six years, focal epilepsy with language and/or global developmental regression, and electroencephalogram (EEG) abnormalities, including continuous spike-and-wave discharges in sleep or very active centrotemporal discharges. Epilepsy is typically focal and ranges from self-limited epilepsy with centrotemporal spikes to developmental and/or epileptic encephalopathies (DEE/EE), including the syndromes of DEE/EE with spike-wave activation in sleep (DEE/EE-SWAS), which include Landau-Kleffner syndrome. Movement disorders occur less frequently and include ataxia, dystonia, and chorea.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/79465">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_208639"><div><strong>Kleefstra syndrome 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>208639</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information."><span class="highlight" style="background-color:">C0795833</span></a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Kleefstra syndrome is characterized by intellectual disability, autistic-like features, childhood hypotonia, and distinctive facial features. The majority of individuals function in the moderate-to-severe spectrum of intellectual disability although a few individuals have mild delay and total IQ within low-normal range. While most have severe expressive speech delay with little speech development, general language development is usually at a higher level, making nonverbal communication possible. A complex pattern of other findings can also be observed; these include heart defects, renal/urologic defects, genital defects in males, severe respiratory infections, epilepsy / febrile seizures, psychiatric disorders, and extreme apathy or catatonic-like features after puberty.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/208639">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_162897"><div><strong>Kabuki syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>162897</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0796004</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Kabuki syndrome (KS) is characterized by typical facial features (long palpebral fissures with eversion of the lateral third of the lower eyelid; arched and broad eyebrows; short columella with depressed nasal tip; large, prominent, or cupped ears), minor skeletal anomalies, persistence of fetal fingertip pads, mild-to-moderate intellectual disability, and postnatal growth deficiency. Other findings may include: congenital heart defects, genitourinary anomalies, cleft lip and/or palate, gastrointestinal anomalies including anal atresia, ptosis and strabismus, and widely spaced teeth and hypodontia. Functional differences can include: increased susceptibility to infections and autoimmune disorders, seizures, endocrinologic abnormalities (including isolated premature thelarche in females), feeding problems, and hearing loss.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/162897">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_375105"><div><strong>Seizures, benign familial infantile, 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>375105</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1843140</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Benign familial neonatal-infantile seizures is an autosomal dominant disorder in which afebrile seizures occur in clusters during the first year of life, without neurologic sequelae (Shevell et al., 1986).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of benign familial infantile seizures, see BFIS1 (601764).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/375105">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_350479"><div><strong>Gaucher disease due to saposin C deficiency</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>350479</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1864651</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Any Gaucher disease in which the cause of the disease is a mutation in the PSAP gene.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/350479">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_368898"><div><strong>Familial temporal lobe epilepsy 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>368898</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1968848</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/368898">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_432274"><div><strong>Benign Rolandic epilepsy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>432274</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2363129</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Benign epilepsy of childhood with centrotemporal spikes (BECTS) or sharp waves, also known as rolandic epilepsy, is the most common idiopathic childhood epilepsy syndrome (Neubauer et al., 1998). It is termed 'rolandic' epilepsy because of the characteristic features of partial seizures involving the region around the lower portion of the central gyrus of Rolando. This results in classic focal seizures that affect the vocal tract, beginning with guttural sounds at the larynx and sensorimotor symptoms that progress to the tongue, mouth, and face, resulting in hypersalivation and speech arrest. Seizures most often occur in sleep shortly before awakening. The disorder occurs more often in boys than in girls (3:2). Rolandic epilepsy is considered a neurodevelopmental disorder, affecting 0.2% of the population. Affected individuals may have learning disabilities or behavioral problems; however, the seizures and accompanying problems usually remit during adolescence (summary by Strug et al., 2009).&#13; See also focal epilepsy and speech disorder (FESD; 245570), which is caused by mutation in the GRIN2A gene (138253) on chromosome 16p13. Some patients with GRIN2A mutations show features consistent with a clinical diagnosis of BECTS. Some patients with DEPDC5 (614191) mutations may show features consistent with rolandic epilepsy (see FFEVF, 604364).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/432274">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_388595"><div><strong>Progressive myoclonic epilepsy type 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>388595</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2673257</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Mutations in the KCTD7 gene cause a severe neurodegenerative phenotype characterized by onset of intractable myoclonic seizures before age 2 years and accompanied by developmental regression. The initial description was consistent with a form of progressive myoclonic epilepsy (designated here as EPM3), whereas a later report identified intracellular accumulation of autofluorescent lipopigment storage material, consistent with neuronal ceroid lipofuscinosis (designated CLN14). Ultrastructural findings on skin biopsies thus appear to be variable. However, clinical features are generally consistent between reports (summary by Staropoli et al., 2012).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of progressive myoclonic epilepsy, see EPM1A (254800).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of neuronal ceroid lipofuscinosis, see CLN1 (256730).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/388595">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_413258"><div><strong>Cortical dysplasia-focal epilepsy syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>413258</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2750246</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Pitt-Hopkins-like syndrome-1 (PTHSL1) is an autosomal recessive neurodevelopmental disorder characterized by delayed psychomotor development, intellectual disability, severe speech impairment or regression, and behavioral abnormalities. Most patients have onset of seizures within the first years of life. Some patients may have cortical dysplasia on brain imaging (summary by Smogavec et al., 2016).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/413258">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_462337"><div><strong>Developmental and epileptic encephalopathy, 11</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>462337</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3150987</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-11 (DEE11) is a neurologic disorder characterized by onset of seizures in the first days, weeks, or months of life. Some patients may have later onset. Seizures comprise multiple types, including tonic, generalized, and myoclonic, and tend to be refractory to medication. However, some patients with onset of seizures before 3 months of age may respond to sodium channel blockers, particularly phenytoin. About half of patients become seizure-free in childhood. Affected individuals have global developmental delay, usually with severely impaired intellectual development, although some may be less severely affected and show autism spectrum disorder. Additional common features include microcephaly, hypotonia, and abnormal movements, such as dystonia, dyskinesias, and choreoathetotic movements. Brain imaging may show white matter defects. The phenotype is highly variable, even in patients with the same mutation (summary by Ogiwara et al., 2009; Howell et al., 2015; Wolff et al., 2017).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/462337">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_481870"><div><strong>Microcephaly, epilepsy, and diabetes syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>481870</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3280240</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Primary microcephaly-epilepsy-permanent neonatal diabetes syndrome is a rare, genetic, neurologic disease characterized by congenital microcephaly, severe, early-onset epileptic encephalopathy (manifesting as intractable, myoclonic and/or tonic-clonic seizures), permanent, neonatal, insulin-dependent diabetes mellitus, and severe global developmental delay. Muscular hypotonia, skeletal abnormalities, feeding difficulties, and dysmorphic facial features (including narrow forehead, anteverted nares, small mouth with deep philtrum, tented upper lip vermilion) are frequently associated. Brain MRI reveals cerebral atrophy with cortical gyral simplification and aplasia/hypoplasia of the corpus callosum.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/481870">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_482821"><div><strong>Developmental and epileptic encephalopathy, 13</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>482821</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3281191</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">SCN8A-related epilepsy and/or neurodevelopmental disorders encompasses a spectrum of phenotypes. Epilepsy phenotypes include developmental and epileptic encephalopathy (DEE) associated with severe developmental delays and usually pharmacoresistant epilepsy with multiple seizure types; mild-to-moderate developmental and epileptic encephalopathy (mild/modDEE, or intermediate epilepsy) with partially treatable epilepsy; self-limited familial infantile epilepsy (SeLFIE, also known as benign familial infantile epilepsy or BFIE) with normal cognition and medically treatable seizures; neurodevelopmental delays with generalized epilepsy (NDDwGE); and neurodevelopmental disorder without epilepsy (NDDwoE) with mild-to-moderate intellectual disability (though it can be severe in ~10% of affected individuals). Hypotonia and movement disorders including dystonia, ataxia, and choreoathetosis are common in some phenotypes. Sudden unexpected death in epilepsy (SUDEP) has been reported in some affected individuals.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/482821">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_766272"><div><strong>Coenzyme Q10 deficiency, primary, 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>766272</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3553358</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Any coenzyme Q10 deficiency in which the cause of the disease is a mutation in the PDSS2 gene.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/766272">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_815954"><div><strong>Developmental and epileptic encephalopathy, 18</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>815954</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3809624</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-18 (DEE18) is a severe autosomal recessive neurologic disorder characterized by lack of psychomotor development apparent from birth, dysmorphic facial features, and early onset of refractory seizures. Brain imaging shows a thick corpus callosum and persistent cavum septum pellucidum on brain imaging (summary by Basel-Vanagaite et al., 2013).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/815954">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_816650"><div><strong>Familial temporal lobe epilepsy 6</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>816650</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3810320</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A temporal lobe epilepsy that has material basis in variation in the chromosome region 3q25-q26.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/816650">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_862085"><div><strong>Bilateral parasagittal parieto-occipital polymicrogyria</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>862085</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4013648</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Polymicrogyria is a condition characterized by abnormal development of the brain before birth. The surface of the brain normally has many ridges or folds, called gyri. In people with polymicrogyria, the brain develops too many folds, and the folds are unusually small. The name of this condition literally means too many (poly-) small (micro-) folds (-gyria) in the surface of the brain.\n\nPolymicrogyria can affect part of the brain or the whole brain. When the condition affects one side of the brain, researchers describe it as unilateral. When it affects both sides of the brain, it is described as bilateral. The signs and symptoms associated with polymicrogyria depend on how much of the brain, and which particular brain regions, are affected.\n\nResearchers have identified multiple forms of polymicrogyria. The mildest form is known as unilateral focal polymicrogyria. This form of the condition affects a relatively small area on one side of the brain. It may cause minor neurological problems, such as mild seizures that can be easily controlled with medication. Some people with unilateral focal polymicrogyria do not have any problems associated with the condition.\n\nPolymicrogyria most often occurs as an isolated feature, although it can occur with other brain abnormalities. It is also a feature of several genetic syndromes characterized by intellectual disability and multiple birth defects. These include 22q11.2 deletion syndrome, Adams-Oliver syndrome, Aicardi syndrome, Galloway-Mowat syndrome, Joubert syndrome, and Zellweger spectrum disorder.\n\nBilateral forms of polymicrogyria tend to cause more severe neurological problems. Signs and symptoms of these conditions can include recurrent seizures (epilepsy), delayed development, crossed eyes, problems with speech and swallowing, and muscle weakness or paralysis. The most severe form of the disorder, bilateral generalized polymicrogyria, affects the entire brain. This condition causes severe intellectual disability, problems with movement, and seizures that are difficult or impossible to control with medication.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/862085">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_863556"><div><strong>Developmental and epileptic encephalopathy, 26</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>863556</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4015119</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-26 (DEE26) is a neurologic disorder characterized by onset of variable types of seizures late in infancy or in the first years of life. Affected children show developmental delay with intellectual disability, poor speech, and behavioral abnormalities. EEG shows multifocal epileptic discharges, and may show hypsarrhythmia (summary by Torkamani et al., 2014).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/863556">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_863956"><div><strong>Developmental and epileptic encephalopathy, 28</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>863956</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4015519</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-28 (DEE28) is an autosomal recessive severe neurologic disorder characterized by the onset of refractory seizures in the first months of life. Affected individuals have severe axial hypotonia and profoundly impaired psychomotor development. More severely affected patients have acquired microcephaly, poor or absent visual contact, and retinal degeneration; early death may occur (summary by Mignot et al., 2015).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/863956">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_899149"><div><strong>Developmental and epileptic encephalopathy, 34</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>899149</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4225257</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">SLC12A5-related epilepsy of infancy with migrating focal seizures (SLC12A5-EIMFS), reported to date in nine children, is characterized by onset of seizures before age six months and either developmental delay or developmental regression with seizure onset. Of these nine children, six had severe developmental delay with no progress of abilities and three made notable neurodevelopmental progress. Eight had postnatal microcephaly and hypotonia. In most children epilepsy begins as focal motor seizures (typically involving head and eye deviation) that become multifocal and intractable to conventional anti-seizure medication (ASM).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/899149">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_909158"><div><strong>Familial temporal lobe epilepsy 8</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>909158</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4225318</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A temporal lobe epilepsy characterized by autosomal dominant inheritance of complex partial seizures with occasional secondary generalization and that has material basis in heterozygous mutation in the GAL gene on chromosome 11q13.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/909158">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1626119"><div><strong>Cerebellar atrophy, developmental delay, and seizures</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1626119</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4539985</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1626119">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1638448"><div><strong>Benign familial neonatal-infantile seizures 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1638448</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4551769</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Benign familial infantile seizures (BFIS) is a seizure disorder of early childhood with age at onset from 3 months up to 24 months. It is characterized by brief seizures beginning with slow deviation of the head and eyes to 1 side and progressing to generalized motor arrest and hypotonia, apnea and cyanosis, and limb jerks. Seizures usually occur in clusters over a day or several days. The ictal EEG shows focal parietal-temporal activity, whereas the interictal EEG is normal. Concurrent and subsequent psychomotor and neurologic development are normal (Franzoni et al., 2005).&#13; See also benign familial neonatal seizures (BFNS1; 121200).&#13; Deprez et al. (2009) provided a review of the genetics of epilepsy syndromes starting in the first year of life, and included a diagnostic algorithm.&#13; Genetic Heterogeneity of Benign Familial Infantile Seizures&#13; The BFIS1 locus has been mapped to chromosome 19q. BFIS2 (605751) is caused by mutation in the PRRT2 gene on chromosome 16p11. BFIS3 (607745), which is caused by the mutations in the SCN2A gene (182390) on chromosome 2q24, has a slightly earlier age at onset and is sometimes termed benign familial 'neonatal-infantile' seizures. BFIS4 (612627) has been mapped to chromosome 1p. BFIS5 (617080) is caused by mutation in the SCN8A gene (600702) on chromosome 12q13. BFIS6 (see 610353) is caused by mutation in the CHRNA2 gene (118502) on chromosome 8p21.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1638448">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1643229"><div><strong>Epilepsy, familial temporal lobe, 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1643229</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4551957</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal dominant epilepsy with auditory features (ADEAF) is a focal epilepsy syndrome with auditory symptoms and/or receptive aphasia as prominent ictal manifestations. The most common auditory symptoms are simple unformed sounds including humming, buzzing, or ringing; less common forms are distortions (e.g., volume changes) or complex sounds (e.g., specific songs or voices). Ictal receptive aphasia consists of a sudden onset of inability to understand language in the absence of general confusion. Less commonly, other ictal symptoms may occur, including sensory symptoms (visual, olfactory, vertiginous, or cephalic) or motor, psychic, and autonomic symptoms. Age at onset is usually in adolescence or early adulthood (age 10-30 years). The clinical course of ADEAF is benign. Seizures are usually well controlled after initiation of medical therapy.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1643229">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1639392"><div><strong>Developmental and epileptic encephalopathy, 61</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1639392</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4693688</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-61 (DEE61) is an autosomal recessive neurologic disorder characterized by the onset of refractory seizures in the first months or years of life. There is profound global developmental delay with intellectual disability, inability to walk, poor voluntary movements, spasticity, microcephaly, cerebral atrophy, and dysmorphic facial features (summary by Muona et al., 2016).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1639392">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1646555"><div><strong>Combined oxidative phosphorylation defect type 15</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1646555</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4706313</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A rare mitochondrial disease due to a defect in mitochondrial protein synthesis with onset in infancy or early childhood of muscular hypotonia, gait ataxia, mild bilateral pyramidal tract signs, developmental delay (affecting mostly speech and coordination) and subsequent intellectual disability. Short stature, obesity, microcephaly, strabismus, nystagmus, reduced visual acuity, lactic acidosis, and a brain neuropathology consistent with Leigh syndrome are also reported. Caused by homozygous or compound heterozygous mutation in the MTFMT gene on chromosome 15q22.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1646555">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1648486"><div><strong>Developmental and epileptic encephalopathy, 66</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1648486</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4748070</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-66 (DEE66) is a neurologic disorder characterized by the onset of various types of seizures in the first days or weeks of life. Most seizures have focal origins; secondary generalization is common. Seizure control is difficult at first, but may become easier with time. Affected individuals show global developmental delay with hypotonia, behavioral abnormalities, and dysmorphic features or ophthalmologic defects. Brain imaging often shows cerebellar dysgenesis. A subset of patients have extraneurologic manifestations, including hematologic and distal limb abnormalities (summary by Olson et al., 2018).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1648486">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1677130"><div><strong>Houge-Janssens syndrome 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1677130</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5193048</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Houge-Janssens syndrome-3 (HJS3) is characterized by global developmental delay apparent from infancy. The phenotype is highly variable: patients may have hypotonia, behavioral abnormalities, and abnormalities on brain imaging, including enlarged ventricles, thin corpus callosum, and sometimes small brainstem. Many develop seizures, sometimes refractory, and some may have nonspecific dysmorphic features. Intellectual impairment can vary from mild to profound, and some patients may benefit from special education and respond well to speech therapy (summary by Reynhout et al., 2019).&#13; For a discussion of genetic heterogeneity of HJS, see HJS1 (616355).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1677130">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1713823"><div><strong>Diabetes mellitus, permanent neonatal 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1713823</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5394296</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Permanent neonatal diabetes mellitus (PNDM) is characterized by the onset of hyperglycemia within the first six months of life (mean age: 7 weeks; range: birth to age 26 weeks). The diabetes mellitus is associated with partial or complete insulin deficiency. Clinical manifestations at the time of diagnosis include hyperglycemia, glycosuria, osmotic polyuria, severe dehydration, and history of intrauterine growth deficiency. Therapy with insulin and/or oral hypoglycemic medications (in some molecular causes of PNDM) can correct the hyperglycemia and result in dramatic catch-up growth. The course of PNDM varies by genotype.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1713823">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1719546"><div><strong>Lissencephaly 10</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1719546</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5394354</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Lissencephaly-10 (LIS10) is a neurologic disorder characterized by variably delayed development with mildly to moderately impaired intellectual development and language delay, as well as seizures, which are often intractable. There is a spectrum of severity, with some patients having normal early development and only borderline to mild cognitive impairment. Brain imaging shows features consistent with neuronal migration defects, including posterior-predominant lissencephaly, pachygyria, agyria, and subcortical band heterotopia (summary by Tsai et al., 2020).&#13; For a general description and a discussion of genetic heterogeneity of lissencephaly, see LIS1 (607432).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1719546">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1794148"><div><strong>Focal segmental glomerulosclerosis and neurodevelopmental syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1794148</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5561938</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Focal segmental glomerulosclerosis and neurodevelopmental syndrome (FSGSNEDS) is characterized by global developmental delay and renal dysfunction manifest as proteinuria and nephrotic syndrome apparent from infancy or early childhood. Some patients present with renal disease, whereas others present with developmental delay and develop renal disease later in childhood. Renal biopsy shows focal segmental glomerulosclerosis (FSGS), but the course of the disease is variable: some patients have transient proteinuria and others require renal transplant. Neurodevelopmental features are also variable, with some patients having only mildly impaired intellectual development, and others having a severe developmental disorder associated with early-onset refractory seizures or epileptic encephalopathy. Additional features, including feeding difficulties, poor overall growth, and nonspecific dysmorphic facial features, are commonly observed (summary by Assoum et al., 2018 and Weng et al., 2021).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1794148">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1794227"><div><strong>Developmental and epileptic encephalopathy 98</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1794227</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5562017</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-98 (DEE98) is characterized by onset of seizures in the first decade (range infancy to late childhood) associated with variable global developmental delay. Other features may include hypotonia, spasticity, and quadriparesis. Brain imaging may be normal or show nonspecific and variable abnormalities, including polymicrogyria. The severity is variable; some patients may die of refractory status epilepticus (summary by Vetro et al., 2021).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1794227">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1798903"><div><strong>Hypotonia, infantile, with psychomotor retardation and characteristic facies 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1798903</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5567480</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Infantile hypotonia with psychomotor retardation and characteristic facies-3 is a severe autosomal recessive neurodevelopmental disorder with onset at birth or in early infancy. Most affected individuals show very poor, if any, normal psychomotor development, poor speech, and inability to walk independently (summary by Bhoj et al., 2016).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of infantile hypotonia with psychomotor retardation and characteristic facies, see IHPRF1 (615419).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1798903">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1812769"><div><strong>Developmental and epileptic encephalopathy 102</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1812769</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5676991</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-102 (DEE102) is an autosomal recessive neurodevelopmental disorder characterized by global developmental delay and severe to profoundly impaired intellectual development with inability to walk or speak. Most patients have onset of variable types of seizures within the first year of life, and the seizures tend to be refractory. Additional features include progressive microcephaly, visual impairment, axial hypotonia, peripheral hypertonia, and nonspecific brain imaging abnormalities (Marafi et al., 2022).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1812769">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1823982"><div><strong>Neurodevelopmental disorder with seizures, microcephaly, and brain abnormalities</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1823982</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5774209</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Neurodevelopmental disorder with seizures, microcephaly, and brain abnormalities (NEDSMBA) is an autosomal recessive disorder characterized by a core phenotype of moderate to profound developmental delay, progressive microcephaly, epilepsy, and periventricular calcifications (summary by Rosenhahn et al., 2022).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1823982">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1824026"><div><strong>Developmental and epileptic encephalopathy 108</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1824026</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5774253</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-108 (DEE108) is characterized by the onset of multiple types of seizures in the first 2 years of life. Affected individuals often have normal early development before the onset of seizures, after which they show developmental regression with loss of skills, particularly language; most are nonverbal or speak only a few words. Other features included mildly delayed walking, unsteady gait, hypotonia, and behavioral abnormalities, such as ADHD or autism (Spinelli et al., 2021).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1824026">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1844054"><div><strong>Myoclonic epilepsy of Lafora 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1844054</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5848203</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Progressive myoclonus epilepsy, Lafora type (also known as Lafora disease) is characterized by focal occipital seizures presenting as transient blindness or visual hallucinations and fragmentary, symmetric, or generalized myoclonus occurring in previously healthy individuals. Typical age of onset is eight to 19 years (peak: age14-16 years). Generalized tonic-clonic seizures, atypical absence seizures, atonic seizures, and focal seizures with impaired awareness may also occur. The course of the disease is characterized by increasing frequency and intractability of seizures. Status epilepticus with any of the seizure types is common. Cognitive decline becomes apparent at or soon after the onset of seizures. Dysarthria and ataxia appear early, while spasticity appears late. Emotional disturbances and confusion are common in the early stages of the disease and are followed by dementia. Most affected individuals die within ten years of onset, usually from status epilepticus or from complications related to neurologic degeneration.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1844054">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1847911"><div><strong>Epilepsy, early-onset, 3, with or without developmental delay</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1847911</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5882674</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Early-onset epilepsy-3 with or without developmental delay (EPEO3) is an autosomal dominant neurologic disorder characterized by the onset of various types of seizures in the first months or years of life. Many patients present with febrile seizures and later develop afebrile seizures. The severity and disease course is highly variable: some affected individuals have global developmental delay or regression with impaired intellectual development, poor or absent speech, and motor delay, whereas others have normal psychomotor development. More severely affected individuals often show additional features, including hypotonia, gait ataxia, nonspecific dysmorphic features, behavioral abnormalities, and variable anomalies on brain imaging (Mattison et al., 2023, Zhao et al., 2023).&#13; For a discussion of genetic heterogeneity of EPEO, see 617290.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1847911">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1845523"><div><strong>Developmental and epileptic encephalopathy 112</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1845523</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5882700</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Developmental and epileptic encephalopathy-112 (DEE112) is an autosomal dominant disorder characterized by a wide range of seizure types, including focal and generalized seizures. Cognitive outcomes range from normal intellect to profound impairment (summary by Happ et al., 2023).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1845523">Condition Record</a></div></div>
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<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_482821" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Developmental and epileptic encephalopathy, 13</a></div>
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</div>
<div class="portlet mgSection" id="ID_105">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Professional_guidelines">Professional guidelines</h1><a sid="105" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">PubMed<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpPM"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
<div class="nl"><a target="_blank" href="/pubmed/37669572">Updated clinical recommendations for the management of tuberous sclerosis complex associated epilepsy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Specchio N,
Nabbout R,
Aronica E,
Auvin S,
Benvenuto A,
de Palma L,
Feucht M,
Jansen F,
Kotulska K,
Sarnat H,
Lagae L,
Jozwiak S,
Curatolo P</span><br />
<span class="medgenPMjournal">Eur J Paediatr Neurol</span>
2023 Nov;47:25-34.
Epub 2023 Aug 30
doi: 10.1016/j.ejpn.2023.08.005.
<span class="bold">PMID: </span><a href="/pubmed/37669572" target="_blank">37669572</a></div>
<div class="nl"><a target="_blank" href="/pubmed/36368227">Dravet syndrome: Advances in etiology, clinical presentation, and treatment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">He Z,
Li Y,
Zhao X,
Li B</span><br />
<span class="medgenPMjournal">Epilepsy Res</span>
2022 Dec;188:107041.
Epub 2022 Oct 29
doi: 10.1016/j.eplepsyres.2022.107041.
<span class="bold">PMID: </span><a href="/pubmed/36368227" target="_blank">36368227</a></div>
<div class="nl"><a target="_blank" href="/pubmed/35503712">ILAE classification and definition of epilepsy syndromes with onset in neonates and infants: Position statement by the ILAE Task Force on Nosology and Definitions.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zuberi SM,
Wirrell E,
Yozawitz E,
Wilmshurst JM,
Specchio N,
Riney K,
Pressler R,
Auvin S,
Samia P,
Hirsch E,
Galicchio S,
Triki C,
Snead OC,
Wiebe S,
Cross JH,
Tinuper P,
Scheffer IE,
Perucca E,
Moshé SL,
Nabbout R</span><br />
<span class="medgenPMjournal">Epilepsia</span>
2022 Jun;63(6):1349-1397.
Epub 2022 May 3
doi: 10.1111/epi.17239.
<span class="bold">PMID: </span><a href="/pubmed/35503712" target="_blank">35503712</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(bilateral%20tonic-clonic%20seizure%20with%20focal%20onset)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">See all (214)</a></div></div>
</div>
<div class="display-none help-popup" id="guidelinesHelpPM">These guidelines are articles in PubMed that match specific search criteria developed by MedGen to capture the most relevant practice guidelines. This list may not be comprehensive and may include broader topics as well. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div><div class="display-none help-popup" id="guidelinesHelpCurated">These guidelines are manually curated by the MedGen team
to supplement articles available in PubMed. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div>
<div class="portlet mgSection" id="ID_103">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_clinical_studies">Recent clinical studies</h1><a sid="103" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">Etiology</h3>
<div class="nl"><a target="_blank" href="/pubmed/33522601">The ILAE classification of seizures and the epilepsies: Modification for seizures in the neonate. Position paper by the ILAE Task Force on Neonatal Seizures.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Pressler RM,
Cilio MR,
Mizrahi EM,
Moshé SL,
Nunes ML,
Plouin P,
Vanhatalo S,
Yozawitz E,
de Vries LS,
Puthenveettil Vinayan K,
Triki CC,
Wilmshurst JM,
Yamamoto H,
Zuberi SM</span><br />
<span class="medgenPMjournal">Epilepsia</span>
2021 Mar;62(3):615-628.
Epub 2021 Feb 1
doi: 10.1111/epi.16815.
<span class="bold">PMID: </span><a href="/pubmed/33522601" target="_blank">33522601</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32409485">Randomized phase 2 study of adjunctive cenobamate in patients with uncontrolled focal seizures.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Chung SS,
French JA,
Kowalski J,
Krauss GL,
Lee SK,
Maciejowski M,
Rosenfeld WE,
Sperling MR,
Mizne S,
Kamin M</span><br />
<span class="medgenPMjournal">Neurology</span>
2020 Jun 2;94(22):e2311-e2322.
Epub 2020 May 14
doi: 10.1212/WNL.0000000000009530.
<span class="bold">PMID: </span><a href="/pubmed/32409485" target="_blank">32409485</a><a href="/pmc/articles/PMC7357293" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31734103">Safety and efficacy of adjunctive cenobamate (YKP3089) in patients with uncontrolled focal seizures: a multicentre, double-blind, randomised, placebo-controlled, dose-response trial.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Krauss GL,
Klein P,
Brandt C,
Lee SK,
Milanov I,
Milovanovic M,
Steinhoff BJ,
Kamin M</span><br />
<span class="medgenPMjournal">Lancet Neurol</span>
2020 Jan;19(1):38-48.
Epub 2019 Nov 14
doi: 10.1016/S1474-4422(19)30399-0.
<span class="bold">PMID: </span><a href="/pubmed/31734103" target="_blank">31734103</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31618474">The Genetic Landscape of Epilepsy of Infancy with Migrating Focal Seizures.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Burgess R,
Wang S,
McTague A,
Boysen KE,
Yang X,
Zeng Q,
Myers KA,
Rochtus A,
Trivisano M,
Gill D;
EIMFS Consortium,
Sadleir LG,
Specchio N,
Guerrini R,
Marini C,
Zhang YH,
Mefford HC,
Kurian MA,
Poduri AH,
Scheffer IE</span><br />
<span class="medgenPMjournal">Ann Neurol</span>
2019 Dec;86(6):821-831.
doi: 10.1002/ana.25619.
<span class="bold">PMID: </span><a href="/pubmed/31618474" target="_blank">31618474</a><a href="/pmc/articles/PMC7423163" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30916648">Non convulsive status epilepticus in the elderly.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dupont S</span><br />
<span class="medgenPMjournal">Geriatr Psychol Neuropsychiatr Vieil</span>
2019 Mar 1;17(S1):25-30.
doi: 10.1684/pnv.2019.0782.
<span class="bold">PMID: </span><a href="/pubmed/30916648" target="_blank">30916648</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Bilateral%20tonic-clonic%20seizure%20with%20focal%20onset%22%20AND%20Etiology%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (2397)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/34894624">Seizure semiology, localization, and the 2017 ILAE seizure classification.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Turek G,
Skjei K</span><br />
<span class="medgenPMjournal">Epilepsy Behav</span>
2022 Jan;126:108455.
Epub 2021 Dec 8
doi: 10.1016/j.yebeh.2021.108455.
<span class="bold">PMID: </span><a href="/pubmed/34894624" target="_blank">34894624</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34404748">Localisation in focal epilepsy: a practical guide.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Chowdhury FA,
Silva R,
Whatley B,
Walker MC</span><br />
<span class="medgenPMjournal">Pract Neurol</span>
2021 Dec;21(6):481-491.
Epub 2021 Aug 17
doi: 10.1136/practneurol-2019-002341.
<span class="bold">PMID: </span><a href="/pubmed/34404748" target="_blank">34404748</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30921011">Epilepsy Overview and Revised Classification of Seizures and Epilepsies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Pack AM</span><br />
<span class="medgenPMjournal">Continuum (Minneap Minn)</span>
2019 Apr;25(2):306-321.
doi: 10.1212/CON.0000000000000707.
<span class="bold">PMID: </span><a href="/pubmed/30921011" target="_blank">30921011</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30482654">New onset refractory status epilepticus (NORSE).</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sculier C,
Gaspard N</span><br />
<span class="medgenPMjournal">Seizure</span>
2019 May;68:72-78.
Epub 2018 Sep 29
doi: 10.1016/j.seizure.2018.09.018.
<span class="bold">PMID: </span><a href="/pubmed/30482654" target="_blank">30482654</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28276060">Operational classification of seizure types by the International League Against Epilepsy: Position Paper of the ILAE Commission for Classification and Terminology.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Fisher RS,
Cross JH,
French JA,
Higurashi N,
Hirsch E,
Jansen FE,
Lagae L,
Moshé SL,
Peltola J,
Roulet Perez E,
Scheffer IE,
Zuberi SM</span><br />
<span class="medgenPMjournal">Epilepsia</span>
2017 Apr;58(4):522-530.
Epub 2017 Mar 8
doi: 10.1111/epi.13670.
<span class="bold">PMID: </span><a href="/pubmed/28276060" target="_blank">28276060</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Bilateral%20tonic-clonic%20seizure%20with%20focal%20onset%22%20AND%20Diagnosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (2522)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/37713961">Real-world experience with cenobamate: A systematic review and meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Makridis KL,
Kaindl AM</span><br />
<span class="medgenPMjournal">Seizure</span>
2023 Nov;112:1-10.
Epub 2023 Sep 9
doi: 10.1016/j.seizure.2023.09.006.
<span class="bold">PMID: </span><a href="/pubmed/37713961" target="_blank">37713961</a></div>
<div class="nl"><a target="_blank" href="/pubmed/35503712">ILAE classification and definition of epilepsy syndromes with onset in neonates and infants: Position statement by the ILAE Task Force on Nosology and Definitions.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zuberi SM,
Wirrell E,
Yozawitz E,
Wilmshurst JM,
Specchio N,
Riney K,
Pressler R,
Auvin S,
Samia P,
Hirsch E,
Galicchio S,
Triki C,
Snead OC,
Wiebe S,
Cross JH,
Tinuper P,
Scheffer IE,
Perucca E,
Moshé SL,
Nabbout R</span><br />
<span class="medgenPMjournal">Epilepsia</span>
2022 Jun;63(6):1349-1397.
Epub 2022 May 3
doi: 10.1111/epi.17239.
<span class="bold">PMID: </span><a href="/pubmed/35503712" target="_blank">35503712</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34296824">Neuropharmacology of Antiseizure Drugs.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hakami T</span><br />
<span class="medgenPMjournal">Neuropsychopharmacol Rep</span>
2021 Sep;41(3):336-351.
Epub 2021 Jul 23
doi: 10.1002/npr2.12196.
<span class="bold">PMID: </span><a href="/pubmed/34296824" target="_blank">34296824</a><a href="/pmc/articles/PMC8411307" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30916648">Non convulsive status epilepticus in the elderly.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dupont S</span><br />
<span class="medgenPMjournal">Geriatr Psychol Neuropsychiatr Vieil</span>
2019 Mar 1;17(S1):25-30.
doi: 10.1684/pnv.2019.0782.
<span class="bold">PMID: </span><a href="/pubmed/30916648" target="_blank">30916648</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28483337">Individualised prediction model of seizure recurrence and long-term outcomes after withdrawal of antiepileptic drugs in seizure-free patients: a systematic review and individual participant data meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lamberink HJ,
Otte WM,
Geerts AT,
Pavlovic M,
Ramos-Lizana J,
Marson AG,
Overweg J,
Sauma L,
Specchio LM,
Tennison M,
Cardoso TMO,
Shinnar S,
Schmidt D,
Geleijns K,
Braun KPJ</span><br />
<span class="medgenPMjournal">Lancet Neurol</span>
2017 Jul;16(7):523-531.
Epub 2017 May 5
doi: 10.1016/S1474-4422(17)30114-X.
<span class="bold">PMID: </span><a href="/pubmed/28483337" target="_blank">28483337</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Bilateral%20tonic-clonic%20seizure%20with%20focal%20onset%22%20AND%20Therapy%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (1248)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/35503712">ILAE classification and definition of epilepsy syndromes with onset in neonates and infants: Position statement by the ILAE Task Force on Nosology and Definitions.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zuberi SM,
Wirrell E,
Yozawitz E,
Wilmshurst JM,
Specchio N,
Riney K,
Pressler R,
Auvin S,
Samia P,
Hirsch E,
Galicchio S,
Triki C,
Snead OC,
Wiebe S,
Cross JH,
Tinuper P,
Scheffer IE,
Perucca E,
Moshé SL,
Nabbout R</span><br />
<span class="medgenPMjournal">Epilepsia</span>
2022 Jun;63(6):1349-1397.
Epub 2022 May 3
doi: 10.1111/epi.17239.
<span class="bold">PMID: </span><a href="/pubmed/35503712" target="_blank">35503712</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30916648">Non convulsive status epilepticus in the elderly.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dupont S</span><br />
<span class="medgenPMjournal">Geriatr Psychol Neuropsychiatr Vieil</span>
2019 Mar 1;17(S1):25-30.
doi: 10.1684/pnv.2019.0782.
<span class="bold">PMID: </span><a href="/pubmed/30916648" target="_blank">30916648</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30482654">New onset refractory status epilepticus (NORSE).</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sculier C,
Gaspard N</span><br />
<span class="medgenPMjournal">Seizure</span>
2019 May;68:72-78.
Epub 2018 Sep 29
doi: 10.1016/j.seizure.2018.09.018.
<span class="bold">PMID: </span><a href="/pubmed/30482654" target="_blank">30482654</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30179843">Seizures after transplantation.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lin P,
Tian X,
Wang X</span><br />
<span class="medgenPMjournal">Seizure</span>
2018 Oct;61:177-185.
Epub 2018 Aug 12
doi: 10.1016/j.seizure.2018.08.010.
<span class="bold">PMID: </span><a href="/pubmed/30179843" target="_blank">30179843</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28483337">Individualised prediction model of seizure recurrence and long-term outcomes after withdrawal of antiepileptic drugs in seizure-free patients: a systematic review and individual participant data meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lamberink HJ,
Otte WM,
Geerts AT,
Pavlovic M,
Ramos-Lizana J,
Marson AG,
Overweg J,
Sauma L,
Specchio LM,
Tennison M,
Cardoso TMO,
Shinnar S,
Schmidt D,
Geleijns K,
Braun KPJ</span><br />
<span class="medgenPMjournal">Lancet Neurol</span>
2017 Jul;16(7):523-531.
Epub 2017 May 5
doi: 10.1016/S1474-4422(17)30114-X.
<span class="bold">PMID: </span><a href="/pubmed/28483337" target="_blank">28483337</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Bilateral%20tonic-clonic%20seizure%20with%20focal%20onset%22%20AND%20Prognosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (1549)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/37713961">Real-world experience with cenobamate: A systematic review and meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Makridis KL,
Kaindl AM</span><br />
<span class="medgenPMjournal">Seizure</span>
2023 Nov;112:1-10.
Epub 2023 Sep 9
doi: 10.1016/j.seizure.2023.09.006.
<span class="bold">PMID: </span><a href="/pubmed/37713961" target="_blank">37713961</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33120323">Learnings from 30 years of reported efficacy and safety of vagus nerve stimulation (VNS) for epilepsy treatment: A critical review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Toffa DH,
Touma L,
El Meskine T,
Bouthillier A,
Nguyen DK</span><br />
<span class="medgenPMjournal">Seizure</span>
2020 Dec;83:104-123.
Epub 2020 Oct 10
doi: 10.1016/j.seizure.2020.09.027.
<span class="bold">PMID: </span><a href="/pubmed/33120323" target="_blank">33120323</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31618474">The Genetic Landscape of Epilepsy of Infancy with Migrating Focal Seizures.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Burgess R,
Wang S,
McTague A,
Boysen KE,
Yang X,
Zeng Q,
Myers KA,
Rochtus A,
Trivisano M,
Gill D;
EIMFS Consortium,
Sadleir LG,
Specchio N,
Guerrini R,
Marini C,
Zhang YH,
Mefford HC,
Kurian MA,
Poduri AH,
Scheffer IE</span><br />
<span class="medgenPMjournal">Ann Neurol</span>
2019 Dec;86(6):821-831.
doi: 10.1002/ana.25619.
<span class="bold">PMID: </span><a href="/pubmed/31618474" target="_blank">31618474</a><a href="/pmc/articles/PMC7423163" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28483337">Individualised prediction model of seizure recurrence and long-term outcomes after withdrawal of antiepileptic drugs in seizure-free patients: a systematic review and individual participant data meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lamberink HJ,
Otte WM,
Geerts AT,
Pavlovic M,
Ramos-Lizana J,
Marson AG,
Overweg J,
Sauma L,
Specchio LM,
Tennison M,
Cardoso TMO,
Shinnar S,
Schmidt D,
Geleijns K,
Braun KPJ</span><br />
<span class="medgenPMjournal">Lancet Neurol</span>
2017 Jul;16(7):523-531.
Epub 2017 May 5
doi: 10.1016/S1474-4422(17)30114-X.
<span class="bold">PMID: </span><a href="/pubmed/28483337" target="_blank">28483337</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21406130">Febrile seizures.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Mewasingh LD</span><br />
<span class="medgenPMjournal">BMJ Clin Evid</span>
2010 Nov 24;2010
<span class="bold">PMID: </span><a href="/pubmed/21406130" target="_blank">21406130</a><a href="/pmc/articles/PMC3275324" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Bilateral%20tonic-clonic%20seizure%20with%20focal%20onset%22%20AND%20Clinical%20prediction%20guides%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (1608)</a></div></div>
</div>
<div class="portlet mgSection" id="ID_104">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_systematic_reviews">Recent systematic reviews</h1><a sid="104" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
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<div class="portlet_content ln"><span class="medgenPMauthor">Makridis KL,
Kaindl AM</span><br />
<span class="medgenPMjournal">Seizure</span>
2023 Nov;112:1-10.
Epub 2023 Sep 9
doi: 10.1016/j.seizure.2023.09.006.
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<div class="portlet_content ln"><span class="medgenPMauthor">Nevitt SJ,
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2022 Apr 1;4(4):CD011412.
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<div class="portlet_content ln"><span class="medgenPMauthor">Beuker C,
Strunk D,
Rawal R,
Schmidt-Pogoda A,
Werring N,
Milles L,
Ruck T,
Wiendl H,
Meuth S,
Minnerup H,
Minnerup J</span><br />
<span class="medgenPMjournal">Neurol Neuroimmunol Neuroinflamm</span>
2021 Nov;8(6)
Epub 2021 Oct 18
doi: 10.1212/NXI.0000000000001093.
<span class="bold">PMID: </span><a href="/pubmed/34663675" target="_blank">34663675</a><a href="/pmc/articles/PMC10578363" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29137682">Cefepime-induced neurotoxicity: a systematic review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Payne LE,
Gagnon DJ,
Riker RR,
Seder DB,
Glisic EK,
Morris JG,
Fraser GL</span><br />
<span class="medgenPMjournal">Crit Care</span>
2017 Nov 14;21(1):276.
doi: 10.1186/s13054-017-1856-1.
<span class="bold">PMID: </span><a href="/pubmed/29137682" target="_blank">29137682</a><a href="/pmc/articles/PMC5686900" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28483337">Individualised prediction model of seizure recurrence and long-term outcomes after withdrawal of antiepileptic drugs in seizure-free patients: a systematic review and individual participant data meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lamberink HJ,
Otte WM,
Geerts AT,
Pavlovic M,
Ramos-Lizana J,
Marson AG,
Overweg J,
Sauma L,
Specchio LM,
Tennison M,
Cardoso TMO,
Shinnar S,
Schmidt D,
Geleijns K,
Braun KPJ</span><br />
<span class="medgenPMjournal">Lancet Neurol</span>
2017 Jul;16(7):523-531.
Epub 2017 May 5
doi: 10.1016/S1474-4422(17)30114-X.
<span class="bold">PMID: </span><a href="/pubmed/28483337" target="_blank">28483337</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Bilateral%20tonic-clonic%20seizure%20with%20focal%20onset%22%20AND%20systematic%5Bsb%5D%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (112)</a></div></div>
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