{"Name":"Developmental and epileptic encephalopathy, 7","DiseaseID__c":"GARD:0013060","id":13060,"encodedName":"developmental-and-epileptic-encephalopathy-7","IsDeleted":false,"Disease_Name_Full__c":"Developmental and epileptic encephalopathy, 7","Xref_IDs__c":"C192087; C3150986; DOID:0080462; MEDGEN:462336; MONDO:0013387; OMIM:613720; ORPHA:439218","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":5,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":"1 to 8,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":2,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":2,"Description_Source__c":"MONDO:0013387","Disease_Description__c":"KCNQ2-related epileptic encephalopathy is a severe form of neonatal epilepsy that usually manifests in newborns during the first week of life with seizures (that affect alternatively both sides of the body), often accompanied by clonic jerking or more complex motor behavior, as well as signs of encephalopathy such as diffuse hypotonia, limb spasticity, lack of visual fixation and tracking and mild to moderate intellectual deficiency. The severity can range from controlled to intractable seizures and mild/moderate to severe intellectual disability.","GARD_Name__c":"Developmental and epileptic encephalopathy, 7","GARD_Synonym__c":"dee7; developmental and epileptic encephalopathy 7; early infantile epileptic encephalopathy 7; eiee7; epileptic encephalopathy, early infantile, 7; epileptic encephalopathy, early infantile, type 7; kcnq2-nee; kcnq2-related epileptic encephalopathy; kcnq2-related neonatal epileptic encephalopathy","Curated_Disease_Description_Source__c":"GARD:0013060","Curated_Disease_Description__c":"KCNQ2-Related Disorders are a group of epileptic diseases that start during the first 4 weeks of a child's life (neonatal period). The groups is made up of various different diseases whose signs and symptoms vary. The conditions range from the less severe form KCNQ2-related benign familial neonatal epilepsy (KCNQ2-BFNE) to the more severe form KCNQ2-related epileptic encephalopathy (KCNQ2-NEE). KCNQ2-BFNE is characterized by seizures that start in otherwise healthy infants around day 3 of life and usually go away within 1 to 4 months. These disorders are caused by genetic changes in the KCNQ2 gene. Inheritance is autosomal dominant.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as a Newborn and as an Infant","SourceID__c":"ORPHA:439218","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0013387","ORPHANET_ID__c":"ORPHA:439218","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Encefalopatía epiléptica y del desarrollo asociada a kcnq2","Spanish_Description_Source__c":"ORPHA:439218","Spanish_Description__c":"Es una forma grave de epilepsia neonatal que, por lo general, se manifiesta en recién nacidos durante la primera semana de vida con convulsiones (que afectan alternativamente a ambos lados del cuerpo), a menudo acompañadas de sacudidas clónicas o de un comportamiento motor más complejo, así como signos de encefalopatía, tales como hipotonía difusa, espasticidad en las extremidades, pérdida de agudeza y seguimiento visual y discapacidad intelectual de leve a moderada. La gravedad puede variar desde crisis epilépticas controladas a refractarias y discapacidad intelectual de leve / moderada a grave.","Spanish_Disease_Name__c":"encefalopatía epiléptica y del desarrollo asociada a kcnq2","Spanish_GARD_Synonym__c":"eed-kcnq2","Category_Linearization__c":"ORPHA:98006","icd10_id__c":null,"mesh_id__c":null,"omim_id__c":null,"snomed_id__c":null,"umls_id__c":null,"GARD_Disease__c":[{"Curated_Disease_Description__c":"KCNQ2-Related Disorders are a group of epileptic diseases that start during the first 4 weeks of a child's life (neonatal period). The groups is made up of various different diseases whose signs and symptoms vary. The conditions range from the less severe form KCNQ2-related benign familial neonatal epilepsy (KCNQ2-BFNE) to the more severe form KCNQ2-related epileptic encephalopathy (KCNQ2-NEE). KCNQ2-BFNE is characterized by seizures that start in otherwise healthy infants around day 3 of life and usually go away within 1 to 4 months. These disorders are caused by genetic changes in the KCNQ2 gene. Inheritance is autosomal dominant.","Curated_Disease_Description_Source__c":"GARD:0013060","GARD_Synonym__c":"dee7; developmental and epileptic encephalopathy 7; early infantile epileptic encephalopathy 7; eiee7; epileptic encephalopathy, early infantile, 7; epileptic encephalopathy, early infantile, type 7; kcnq2-nee; kcnq2-related epileptic encephalopathy; kcnq2-related neonatal epileptic encephalopathy","Name":"Developmental and epileptic encephalopathy, 7","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Epilepsy Foundation","Website__c":"https://www.epilepsy.com/"},{"Account_Name__c":"Alianza Iberoamericana de Enfermedades Raras o Poco Frecuentes","Website__c":"https://aliber.org/web/"},{"Account_Name__c":"Federación Mexicana de Enfermedades Raras (FEMEXER)","Website__c":"http://www.femexer.org/"},{"Account_Name__c":"Federación Española de Enfermedades Raras","Website__c":"https://enfermedades-raras.org/"},{"Account_Name__c":"Federación Colombiana de Enfermedades Raras","Website__c":"http://www.fecoer.org"},{"Account_Name__c":"Federación Argentina de Enfermedades Poco Frecuentes","Website__c":"https://fadepof.org.ar/"},{"Account_Name__c":"Asociación Todos Unidos Enfermedades Raras Uruguay","Website__c":"https://atueru.org.uy/"},{"Account_Name__c":"KCNT1 Epilepsy Foundation","Website__c":"https://kcnt1epilepsy.org/"},{"Account_Name__c":"KCNQ2 Cure Alliance","Website__c":"https://www.kcnq2cure.org/"}],"GARD_Disease_Tag__c":[{"Tag_Name__c":"Genetics","Tag_Category__c":"Cause;Disease Category;Specialist","category_description":"Genetic diseases affect the DNA, or genetic instructions, which directs how tissues, organs, and body systems function.","curated_tag_name":"Genetic diseases"},{"Tag_Name__c":"Neurology","Tag_Category__c":"Disease Category;Specialist","category_description":"Neurological diseases affect the brain, spinal cord, cranial nerves, autonomic nerves, or other peripheral nerves.","curated_tag_name":"Neurological diseases"},{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"Tag_Name__c":"Neurodevelopmental disabilities","Tag_Category__c":"Specialist","curated_tag_name":"Neurodevelopmental disabilities"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Neonatal","Provided_By__c":"ORPHA:439218"},{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:439218"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C3150986"}],"External_Identifier_Disease__c":[{"URL__c":"https://raresource.nih.gov/diseases/filter/0013060","Source__c":"RareSource"},{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK32534","Source__c":"Gene Review","Xref__c":"NBK32534"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=462336","Source__c":"C3150986","Xref__c":"MEDGEN:462336"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0080462","Source__c":"MONDO:0013387","Xref__c":"DOID:0080462"},{"URL__c":"https://www.orpha.net/en/disease/detail/439218","Source__c":"C3150986; MONDO:0013387","Xref__c":"ORPHA:439218"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C3150986","Source__c":"C3150986","Xref__c":"C3150986"},{"URL__c":"https://www.omim.org/entry/613720","Source__c":"C3150986; MONDO:0013387; ORPHA:439218","Xref__c":"OMIM:613720"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0013387","Source__c":"GARD:0013060","Xref__c":"MONDO:0013387"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C192087","Source__c":"C3150986","Xref__c":"C192087"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"KCNQ2","GHR_URL__c":"https://medlineplus.gov/genetics/gene/kcnq2","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal dominant"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the globus pallidus.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002453","HPO_Name__c":"Abnormal globus pallidus morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormally pale skin.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000980","HPO_Name__c":"Pallor","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A condition in which epileptiform abnormalities are believed to contribute to the progressive disturbance in cerebral function. Epileptic encephalaopathy is characterized by (1) electrographic EEG paroxysmal activity that is often aggressive, (2) seizures that are usually multiform and intractable, (3) cognitive, behavioral and neurological deficits that may be relentless, and (4) sometimes early death.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0200134","HPO_Synonym__c":"Convulsive encephalopathy","HPO_Name__c":"Epileptic encephalopathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Atrophy (wasting, decrease in size of cells or tissue) affecting the cerebrum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002059","HPO_Synonym__c":"Degeneration of cerebrum","HPO_Name__c":"Cerebral atrophy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Hypsarrhythmia is abnormal interictal high amplitude waves and a background of irregular spikes. There is continuous (during wakefulness), high-amplitude (>200 Hz), generalized polymorphic slowing with no organized background and multifocal spikes demonstrated by electroencephalography (EEG).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002521","HPO_Synonym__c":"Hypsarrhythmia by EEG","HPO_Name__c":"Hypsarrhythmia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Procedure_EEG"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001263","HPO_Synonym__c":"Delayed cognitive development; Delayed development; Delayed developmental milestones; Delayed intellectual development; Delayed milestones; Delayed psychomotor development; Developmental delay; Developmental delay in early childhood; Developmental delay, global; Developmental retardation; GDD; Lack of psychomotor development; Motor and developmental delay; Motormental retardation; Psychomotor delay; Psychomotor development deficiency; Psychomotor development failure; Psychomotor developmental delay; Retarded development; Retarded mental development; Retarded psychomotor development","HPO_Name__c":"Global developmental delay","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A generalized tonic seizure is a type of generalized motor seizure characterized by bilateral limb stiffening or elevation, often with neck stiffening without a subsequent clonic phase. The tonic activity can be a sustained abnormal posture, either in extension or flexion, sometimes accompanied by tremor of the extremities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010818","HPO_Synonym__c":"Generalised hypertonic seizure; Generalized hypertonic seizure; Generalized tonic seizures","HPO_Name__c":"Generalized tonic seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011968","HPO_Synonym__c":"Decreased oral intake; Feeding difficulties; Feeding problems; Poor feeding","HPO_Name__c":"Feeding difficulties","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"The burst suppression pattern in electroencephalography refers to a characteristic periodic pattern of low voltage (<10 microvolts) suppressed background and a relatively shorter pattern of higher amplitude slow, sharp, and spiking complexes.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010851","HPO_Name__c":"EEG with burst suppression","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Procedure_EEG"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormal accumulation of fluid in the brain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002181","HPO_Synonym__c":"Brain edema; Swelling of brain","HPO_Name__c":"Cerebral edema","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Always (100%)","Feature__r":{"HPO_Description__c":"The term intellectual disability or intellectual developmental disorder is used to describe significantly sub-average intellectual and adaptive functioning based on clinical assessment and as measured by individually administered, appropriately normed, standardized and validated tests of intellectual functioning and adaptive behavior, with onset during the developmental period from infancy through adolescence.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001249","HPO_Synonym__c":"Intellectual disability; Mental deficiency; Mental retardation; Mental retardation, nonspecific; Mental-retardation; Nonprogressive intellectual disability; Nonprogressive mental retardation","HPO_Name__c":"Intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the ability (skills) to perform a precise movement of large muscles with the intent to perform a specific act. Gross motor skills are required to mediate movements of the arms, legs, and other large body parts.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007015","HPO_Synonym__c":"Gross motor impairment","HPO_Name__c":"Poor gross motor coordination","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A profound delay in the achievement of motor or mental milestones in the domains of development of a child.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012736","HPO_Synonym__c":"Global developmental delay, profound","HPO_Name__c":"Profound global developmental delay","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Redness of the skin of the face, caused by hyperemia of the capillaries in the lower layers of the skin.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001041","HPO_Synonym__c":"Blushed cheeks; Blushing; Red face; Red in the face","HPO_Name__c":"Facial erythema","Feature_System__c":"Skin System; Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Underdevelopment of the corpus callosum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002079","HPO_Synonym__c":"Corpus callosum hypoplasia; Hypoplasia of corpus callosum; Hypoplastic corpus callosum; Underdevelopment of part of brain called corpus callosum","HPO_Name__c":"Hypoplasia of the corpus callosum","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A sudden flexion, extension, or mixed extension-flexion of predominantly proximal and truncal muscles that is usually more sustained than a myoclonic movement but not as sustained as a tonic seizure. Limited forms may occur: Grimacing, head nodding, or subtle eye movements. Epileptic spasms frequently occur in clusters. Infantile spasms are the best known form, but spasms can occur at all ages","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011097","HPO_Synonym__c":"Epileptic spasms; Salaam convulsion; Salaam convulsions; Salaam seizure; Salaam seizures","HPO_Name__c":"Epileptic spasm","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Incapability to ambulate.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002540","HPO_Synonym__c":"Inability to walk; Non-ambulatory","HPO_Name__c":"Inability to walk","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001250","HPO_Synonym__c":"Epileptic seizure; Seizures","HPO_Name__c":"Seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormality of the cerebral white matter.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002500","HPO_Synonym__c":"Abnormality of subcortical white matter; Abnormality of the cerebral white matter; Cerebral white matter abnormalities; Leukoaraiosis; White matter abnormalities; White matter alterations","HPO_Name__c":"Abnormal cerebral white matter morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001252","HPO_Synonym__c":"Low muscle tone; Low or weak muscle tone; Muscle hypotonia; Muscular hypotonia","HPO_Name__c":"Hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormally increased muscular tone that causes fixed abnormal postures. There is a slow, intermittent twisting motion that leads to exaggerated turning and posture of the extremities and trunk.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001332","HPO_Synonym__c":"Dystonic movements","HPO_Name__c":"Dystonia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:439218","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Lack of breathing with no movement of the respiratory muscles and no exchange of air in the lungs. This term refers to a disposition to have recurrent episodes of apnea rather than to a single event.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002104","HPO_Synonym__c":"Absence of spontaneous respiration; Apneic episodes; Apnoea","HPO_Name__c":"Apnea","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology"],"Specialist":["Genetics","Neurology","Epilepsy","Neurodevelopmental disabilities","Pediatrics"],"Account":["Epilepsy"]},"synonyms":["dee7"," developmental and epileptic encephalopathy 7"," early infantile epileptic encephalopathy 7"," eiee7"," epileptic encephalopathy, early infantile, 7"," epileptic encephalopathy, early infantile, type 7"," kcnq2-nee"," kcnq2-related epileptic encephalopathy"," kcnq2-related neonatal epileptic encephalopathy"],"spanishId":13062,"spanishName":"enfermedades-relacionadas-al-gen-kcnq2"}