{"Name":"Timothy syndrome","DiseaseID__c":"GARD:0009294","id":9294,"encodedName":"timothy-syndrome","IsDeleted":false,"Disease_Name_Full__c":"Timothy syndrome","Xref_IDs__c":"1230096008; C142894; C1832916; C536962; DOID:0060173; MEDGEN:331395; MONDO:0010979; OMIM:601005; ORPHA:65283","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":7,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":1,"World_Estimate__c":"1 to 8,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":1,"No_of_Disease_Descriptions__c":4,"Disease_Characteristics_Score__c":7,"No_of_Age_at_Onset__c":2,"Description_Source__c":"MONDO:0010979","Disease_Description__c":"A rare, multiple congenital anomalies syndrome with cardiac involvement as a major feature characterized by QT prolongation, congenital heart defects, syndactyly, facial dysmorphism and neurodevelopmental features. There are three clinical phenotypes recognized, the classical types that present with a prolonged QT interval and either with (TS1) or without (TS2) cutaneous syndactyly of fingers and toes. The atypical form (ATS) causes multi-system health concerns but not necessarily with prolonged QT.","GARD_Name__c":"Timothy syndrome","GARD_Synonym__c":"long qt syndrome type 8; long qt syndrome with syndactyly; long qt syndrome-syndactyly syndrome; lqt8; ts","Curated_Disease_Description_Source__c":"GARD:0009294","Curated_Disease_Description__c":"Timothy syndrome is a rare disorder that primarily affects the heart but can affect many other areas of the body. The severity of this condition varies among affected individuals, although it is often life-threatening. Timothy syndrome is characterized by a heart condition called long QT syndrome, which causes the heart (cardiac) muscle to take longer than usual to recharge between beats. This abnormality in the heart's electrical system can cause severe abnormalities of the heart rhythm (arrhythmias), which can lead to sudden death. Some people with Timothy syndrome are also born with structural heart defects (cardiomyopathy) that affect the heart's ability to pump blood effectively.  As a result of these serious heart problems, some people with Timothy syndrome live only into childhood. In about 80 percent of cases of Timothy syndrome, the cause of death is a severe form of arrhythmia called ventricular tachycardia, in which the lower chambers of the heart (the ventricles) beat abnormally fast, often leading to cardiac arrest (the heart suddenly stops beating) and sudden death. Timothy syndrome is also characterized by webbing or fusion of the skin between some fingers or toes (cutaneous syndactyly). About half of affected people have distinctive facial features such as a flattened nasal bridge, low-set ears, a small upper jaw, and a thin upper lip. Children with this condition have small, misplaced teeth and frequent cavities (dental caries). Additional signs and symptoms of Timothy syndrome can include baldness at birth, low muscle tone (hypotonia), frequent infections, episodes of low blood glucose (hypoglycemia), and an abnormally low body temperature (hypothermia). The respiratory system and gastrointestinal tract can also be affected. Neuropsychiatric features are also common in individuals with Timothy syndrome. Researchers have found that many children with Timothy syndrome have the characteristic features of autism spectrum disorders. Affected children tend to have impaired communication and socialization skills, as well as delayed development of speech and language. Poor coordination is also frequent in affected individuals. Other nervous system disorders that can occur in Timothy syndrome include attention-deficit/hyperactivity disorder, intellectual disability and recurrent seizures (epilepsy); some affected individuals have photosensitive epilepsy, in which seizures are triggered by flashing lights.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"during Pregnancy and as a Newborn","SourceID__c":"ORPHA:65283","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Grouping","MONDO_ID__c":"MONDO:0010979","ORPHANET_ID__c":"ORPHA:65283","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Síndrome de timothy","Spanish_Description_Source__c":"ORPHA:65283","Spanish_Description__c":"Es un trastorno poco frecuente con múltiples anomalías congénitas y afectación cardíaca con prolongación del intervalo QT como característica principal, defectos cardíacos congénitos, sindactilia, dismorfia facial y trastornos del neurodesarrollo. Se reconocen tres fenotipos clínicos: los tipos clásicos que se presentan con un intervalo QT prolongado y con (TS1) o sin (TS2) sindactilia cutánea de los dedos de manos y pies. La forma atípica (ATS) tiene presentación multisistémica pero no necesariamente asocia QT prolongado.","Spanish_Disease_Name__c":"síndrome de timothy","Spanish_GARD_Synonym__c":"lqt8; síndrome de qt largo tipo 8; síndrome de qt largo-sindactilia","Category_Linearization__c":"ORPHA:97929","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":"Timothy syndrome is a rare disorder that primarily affects the heart but can affect many other areas of the body. The severity of this condition varies among affected individuals, although it is often life-threatening. Timothy syndrome is characterized by a heart condition called long QT syndrome, which causes the heart (cardiac) muscle to take longer than usual to recharge between beats. This abnormality in the heart's electrical system can cause severe abnormalities of the heart rhythm (arrhythmias), which can lead to sudden death. Some people with Timothy syndrome are also born with structural heart defects (cardiomyopathy) that affect the heart's ability to pump blood effectively.  As a result of these serious heart problems, some people with Timothy syndrome live only into childhood. In about 80 percent of cases of Timothy syndrome, the cause of death is a severe form of arrhythmia called ventricular tachycardia, in which the lower chambers of the heart (the ventricles) beat abnormally fast, often leading to cardiac arrest (the heart suddenly stops beating) and sudden death. Timothy syndrome is also characterized by webbing or fusion of the skin between some fingers or toes (cutaneous syndactyly). About half of affected people have distinctive facial features such as a flattened nasal bridge, low-set ears, a small upper jaw, and a thin upper lip. Children with this condition have small, misplaced teeth and frequent cavities (dental caries). Additional signs and symptoms of Timothy syndrome can include baldness at birth, low muscle tone (hypotonia), frequent infections, episodes of low blood glucose (hypoglycemia), and an abnormally low body temperature (hypothermia). The respiratory system and gastrointestinal tract can also be affected. Neuropsychiatric features are also common in individuals with Timothy syndrome. Researchers have found that many children with Timothy syndrome have the characteristic features of autism spectrum disorders. Affected children tend to have impaired communication and socialization skills, as well as delayed development of speech and language. Poor coordination is also frequent in affected individuals. Other nervous system disorders that can occur in Timothy syndrome include attention-deficit/hyperactivity disorder, intellectual disability and recurrent seizures (epilepsy); some affected individuals have photosensitive epilepsy, in which seizures are triggered by flashing lights.","Curated_Disease_Description_Source__c":"GARD:0009294","GARD_Synonym__c":"long qt syndrome type 8; long qt syndrome with syndactyly; long qt syndrome-syndactyly syndrome; lqt8; ts","Name":"Timothy syndrome","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"SADS Foundation","Website__c":"https://www.sads.org/"},{"Account_Name__c":"Organization for Autism Research","Website__c":"https://researchautism.org/"},{"Account_Name__c":"Simons Searchlight","Website__c":"https://www.simonssearchlight.org/"},{"Account_Name__c":"Timothy Syndrome Alliance","Website__c":"https://timothysyndrome.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":"Cardiology","Tag_Category__c":"Specialist"},{"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":"Psychiatry","Tag_Category__c":"Specialist"},{"Tag_Name__c":"Clinical Cardiac Electrophysiology","Tag_Category__c":"Specialist","curated_tag_name":"Clinical cardiac electrophysiology"},{"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":"Antenatal","Provided_By__c":"ORPHA:65283"},{"Age_At_Onset__c":"Neonatal","Provided_By__c":"ORPHA:65283"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C1832916"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1129","Source__c":"Gene Review","Xref__c":"NBK1129"},{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1403","Source__c":"Gene Review","Xref__c":"NBK1403"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0060173","Source__c":"MONDO:0010979","Xref__c":"DOID:0060173"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C1832916","Source__c":"C1832916","Xref__c":"C1832916"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C536962","Source__c":"MONDO:0010979","Xref__c":"C536962"},{"URL__c":"https://www.orpha.net/en/disease/detail/65283","Source__c":"C1832916; MONDO:0010979; ORPHA:65283","Xref__c":"ORPHA:65283"},{"URL__c":"https://www.omim.org/entry/601005","Source__c":"C1832916; MONDO:0010979; ORPHA:65283","Xref__c":"OMIM:601005"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C142894","Source__c":"C1832916; MONDO:0010979","Xref__c":"C142894"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=331395","Source__c":"C1832916","Xref__c":"MEDGEN:331395"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=1230096008","Source__c":"C1832916","Xref__c":"1230096008"},{"URL__c":"https://medlineplus.gov/genetics/condition/timothy-syndrome","Source__c":"GARD:0009294","Xref__c":"https://medlineplus.gov/genetics/condition/timothy-syndrome"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0010979","Source__c":"GARD:0009294","Xref__c":"MONDO:0010979"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"CACNA1C","GHR_URL__c":"https://medlineplus.gov/genetics/gene/cacna1c","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal dominant"],"GARD_Disease_Feature__c":[{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased time between the start of the Q wave and the end of the T wave as measured by the electrocardiogram (EKG).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001657","HPO_Synonym__c":"Long QT syndrome; Prolong qt interval on ekg","HPO_Name__c":"Prolonged QT interval","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Procedure_EKG"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Pulmonary hypertension is defined mean pulmonary artery pressure of 25mmHg or more and pulmonary capillary wedge pressure of 15mmHg or less when measured by right heart catheterisation at rest and in a supine position.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002092","HPO_Synonym__c":"Increased blood pressure in blood vessels of lungs; Pulmonary artery hypertension","HPO_Name__c":"Pulmonary arterial hypertension","Feature_System__c":"Cardiovascular System; Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","Feature__r":{"HPO_Description__c":"The facial appearance is more circular than usual as viewed from the front.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000311","HPO_Synonym__c":"Circular face; Round face; Round facial appearance; Round facial shape; Round facies","HPO_Name__c":"Round face","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Decreased size of the teeth, which can be defined as a mesiodistal tooth diameter (width) more than 2 SD below mean. Alternatively, an apparently decreased maximum width of tooth.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000691","HPO_Synonym__c":"Decreased size of tooth; Decreased width of tooth; Small teeth; Small tooth; Tooth hypoplasia; Tooth hypotrophy; Underdeveloped tooth","HPO_Name__c":"Microdontia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A tachycardia originating in the ventricles characterized by rapid heart rate (over 100 beats per minute) and broad QRS complexes (over 120 ms).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004756","HPO_Name__c":"Ventricular tachycardia","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Deficiency of thyroid hormone.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000821","HPO_Synonym__c":"Low T4; Underactive thyroid","HPO_Name__c":"Hypothyroidism","Feature_System__c":"Endocrine System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A hole between the two bottom chambers (ventricles) of the heart. The defect is centered around the most superior aspect of the ventricular septum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001629","HPO_Synonym__c":"Hole in heart wall separating two lower heart chambers; Ventricular septal defects; Ventriculoseptal defect; VSD","HPO_Name__c":"Ventricular septal defect","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","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":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Inflammation of any part of the lung parenchyma.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002090","HPO_Synonym__c":"Pneumonia","HPO_Name__c":"Pneumonia","Feature_System__c":"Respiratory system; Immune System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","Feature__r":{"HPO_Description__c":"Posterior positioning of the nasal root in relation to the overall facial profile for age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005280","HPO_Synonym__c":"Depressed bridge of nose; Depressed nasal bridge; Depressed nasal root; Flat bridge of nose; Flat nasal bridge; Flat nasal root; Flat, nasal bridge; Flattened nasal bridge; Low nasal bridge; Low nasal root; Retruded bridge of nose; Retruded nasal bridge","HPO_Name__c":"Depressed nasal bridge","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Failure of the foramen ovale to seal postnatally, leaving a potential conduit between the left and right cardiac atria.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001655","HPO_Synonym__c":"Persistent foramen ovale; PFO","HPO_Name__c":"Patent foramen ovale","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","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":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Inflammation of the large airways in the lung including any part of the bronchi from the primary bronchi to the tertiary bronchi.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012387","HPO_Name__c":"Bronchitis","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Delayed or lack of conduction of atrial depolarizations through the atrioventricular node to the ventricles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001678","HPO_Synonym__c":"Interruption of electrical communication between upper and lower chambers of heart","HPO_Name__c":"Atrioventricular block","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","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":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A congenital cardiac malformation comprising pulmonary stenosis, overriding aorta, ventricular septum defect, and right ventricular hypertrophy. The diagnosis of TOF is made if at least three of the four above mentioned features are present.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001636","HPO_Synonym__c":"Tetrology of fallot","HPO_Name__c":"Tetralogy of Fallot","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Increased size of the heart, clinically defined as an increased transverse diameter of the cardiac silhouette that is greater than or equal to 50% of the transverse diameter of the chest (increased cardiothoracic ratio) on a posterior-anterior projection of a chest radiograph or a computed tomography.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001640","HPO_Synonym__c":"Enlarged heart; Increased heart size","HPO_Name__c":"Cardiomegaly","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","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":"OMIM:601005","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A decreased concentration of glucose in the blood.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001943","HPO_Synonym__c":"Hypoglycaemia; Low blood sugar","HPO_Name__c":"Hypoglycemia","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Single umbilical artery (SUA) is the absence of one of the two umbilical arteries surrounding the fetal bladder and in the fetal umbilical cord.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001195","HPO_Synonym__c":"2 vessel cord; 2 vessel umbilical cord; Only one artery in umbilical cord instead of two; SUA; Two vessel cord; Two vessel umbilical cord; Two-vessel cord","HPO_Name__c":"Single umbilical artery","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Imaging_Ultrasound_Fetal; Imaging_Echocardiogram"}},{"Provided_By__c":"OMIM:601005","Feature__r":{"HPO_Description__c":"Rapid and unexpected death.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001699","HPO_Name__c":"Sudden death","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Autism is a neurodevelopmental disorder characterized by impaired social interaction and communication, and by restricted and repetitive behavior. Autism begins in childhood. It is marked by the presence of markedly abnormal or impaired development in social interaction and communication and a markedly restricted repertoire of activity and interest. Manifestations of the disorder vary greatly depending on the developmental level and chronological age of the individual (DSM-IV).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000717","HPO_Synonym__c":"Autism","HPO_Name__c":"Autism","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","Feature__r":{"HPO_Description__c":"Height of the vermilion of the upper lip in the midline more than 2 SD below the mean. Alternatively, an apparently reduced height of the vermilion of the upper lip in the frontal view (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000219","HPO_Synonym__c":"Decreased height of upper lip vermilion; Decreased volume of upper lip; Decreased volume of upper lip vermilion; Thin upper lip; Thin vermilion border of upper lip","HPO_Name__c":"Thin upper lip vermilion","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"In utero, the ductus arteriosus (DA) serves to divert ventricular output away from the lungs and toward the placenta by connecting the main pulmonary artery to the descending aorta. A patent ductus arteriosus (PDA) in the first 3 days of life is a physiologic shunt in healthy term and preterm newborn infants, and normally is substantially closed within about 24 hours after bith and completely closed after about three weeks. Failure of physiologcal closure is referred to a persistent or patent ductus arteriosus (PDA). Depending on the degree of left-to-right shunting, PDA can have clinical consequences.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001643","HPO_Synonym__c":"Ductus arteriosus; Patent ductus Botalli; PDA; Persistent arterial duct; Persistent ductus arteriosus","HPO_Name__c":"Patent ductus arteriosus","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A soft tissue continuity in the A/P axis between two digits that extends distally to at least the level of the proximal interphalangeal joints, or a soft tissue continuity in the A/P axis between two digits that lies significantly distal to the flexion crease that overlies the metacarpophalangeal or metatarsophalangeal joint of the adjacent digits.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012725","HPO_Synonym__c":"Cutaneous syndactyly of digits; Syndactyly, cutaneous","HPO_Name__c":"Cutaneous syndactyly","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A slower than normal heart rate (in adults, slower than 60 beats per minute).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001662","HPO_Synonym__c":"Brachycardia; Slow heartbeats","HPO_Name__c":"Bradycardia","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Reduced body temperature due to failed thermoregulation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002045","HPO_Synonym__c":"Abnormally low body temperature; Hypothermia","HPO_Name__c":"Hypothermia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormally decreased calcium concentration in the blood.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002901","HPO_Synonym__c":"Hypocalcaemia; Low blood calcium levels","HPO_Name__c":"Hypocalcemia","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"OMIM:601005","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Increased susceptibility to infections as manifested by repeated bouts of infection.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002719","HPO_Synonym__c":"Frequent infections; Frequent, severe infections; Increased frequency of infection; infections, recurrent; Predisposition to infections; Recurrent infections; Susceptibility to infection","HPO_Name__c":"Recurrent infections","Feature_System__c":"Immune System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology"],"Specialist":["Genetics","Cardiology","Neurology","Psychiatry","Clinical Cardiac Electrophysiology","Neurodevelopmental disabilities","Pediatrics"]},"synonyms":["long qt syndrome type 8"," long qt syndrome with syndactyly"," long qt syndrome-syndactyly syndrome"," lqt8"," ts"]}