{"Name":"Holt-Oram syndrome","DiseaseID__c":"GARD:0006666","id":6666,"encodedName":"holt-oram-syndrome","IsDeleted":false,"Disease_Name_Full__c":"Holt-Oram syndrome","Xref_IDs__c":"19092004; C0265264; C125592; C535326; DOID:0060468; MEDGEN:120524; MONDO:0007732; NBK1111; OMIM:142900; ORPHA:392","USA_Estimate__c":"5,000","No_of_Specialist_Tagsa__c":5,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":1,"No_of_HHS_records__c":1,"World_Estimate__c":"8,000 to 80,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":3,"No_of_Disease_Descriptions__c":5,"Disease_Characteristics_Score__c":7,"No_of_Age_at_Onset__c":2,"Description_Source__c":"MONDO:0007732","Disease_Description__c":"A genetic syndrome with limb reduction defects characterized by skeletal abnormalities of the upper limbs and mild-to-severe congenital cardiac defects.","GARD_Name__c":"Holt-Oram syndrome","GARD_Synonym__c":"atriodigital dysplasia type 1; cardiac-limb syndrome; heart-hand syndrome type 1; heart-hand syndrome, type 1; holt oram syndrome; hos; tbx5-related holt-oram syndrome; ventriculo-radial syndrome","Curated_Disease_Description_Source__c":"GARD:0006666","Curated_Disease_Description__c":"Holt-Oram syndrome is characterized by skeletal abnormalities of the hands and arms (upper limbs) and heart problems. People with Holt-Oram syndrome have abnormally developed bones in their upper limbs. At least one abnormality in the bones of the wrist (carpal bones) is present in affected individuals. Often, these wrist bone abnormalities can be detected only by x-ray. Individuals with Holt-Oram syndrome may have additional bone abnormalities including a missing thumb, a long thumb that looks like a finger, partial or complete absence of bones in the forearm, an underdeveloped bone of the upper arm, and abnormalities of the collar bone or shoulder blades. These skeletal abnormalities may affect one or both of the upper limbs. If both upper limbs are affected, the bone abnormalities can be the same or different on each side. In cases where the skeletal abnormalities are not the same on both sides of the body, the left side is usually more severely affected than the right side. About 75 percent of individuals with Holt-Oram syndrome have heart (cardiac) problems, which can be life-threatening. The most common problem is a defect in the muscular wall (septum) that separates the right and left sides of the heart. A hole in the septum between the upper chambers of the heart (atria) is called an atrial septal defect (ASD), and a hole in the septum between the lower chambers of the heart (ventricles) is called a ventricular septal defect (VSD). Some people with Holt-Oram syndrome have cardiac conduction disease, which is caused by abnormalities in the electrical system that coordinates contractions of the heart chambers. Cardiac conduction disease can lead to problems such as a slower-than-normal heart rate (bradycardia) or a rapid and uncoordinated contraction of the heart muscle (fibrillation). Cardiac conduction disease can occur along with other heart defects (such as ASD or VSD) or as the only heart problem in people with Holt-Oram syndrome. The features of Holt-Oram syndrome are similar to those of a condition called Duane-radial ray syndrome; however, these two disorders are caused by mutations in different genes.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"5,000","Age_at_Onset_Snippet_Text__c":"during Pregnancy and as a Newborn","SourceID__c":"ORPHA:392","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Grouping","MONDO_ID__c":"MONDO:0007732","ORPHANET_ID__c":"ORPHA:392","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Síndrome de holt-oram","Spanish_Description_Source__c":"ORPHA:392","Spanish_Description__c":"Es un síndrome genético con defectos de reducción de las extreminades caracterizado por anomalías esqueléticas de las extremidades superiores y defectos cardíacos congénitos de gravedad variable","Spanish_Disease_Name__c":"síndrome de holt-oram","Spanish_GARD_Synonym__c":"displasia atriodigital tipo 1; síndrome mano-corazón tipo 1","Category_Linearization__c":"ORPHA:93890","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":"Holt-Oram syndrome is characterized by skeletal abnormalities of the hands and arms (upper limbs) and heart problems. People with Holt-Oram syndrome have abnormally developed bones in their upper limbs. At least one abnormality in the bones of the wrist (carpal bones) is present in affected individuals. Often, these wrist bone abnormalities can be detected only by x-ray. Individuals with Holt-Oram syndrome may have additional bone abnormalities including a missing thumb, a long thumb that looks like a finger, partial or complete absence of bones in the forearm, an underdeveloped bone of the upper arm, and abnormalities of the collar bone or shoulder blades. These skeletal abnormalities may affect one or both of the upper limbs. If both upper limbs are affected, the bone abnormalities can be the same or different on each side. In cases where the skeletal abnormalities are not the same on both sides of the body, the left side is usually more severely affected than the right side. About 75 percent of individuals with Holt-Oram syndrome have heart (cardiac) problems, which can be life-threatening. The most common problem is a defect in the muscular wall (septum) that separates the right and left sides of the heart. A hole in the septum between the upper chambers of the heart (atria) is called an atrial septal defect (ASD), and a hole in the septum between the lower chambers of the heart (ventricles) is called a ventricular septal defect (VSD). Some people with Holt-Oram syndrome have cardiac conduction disease, which is caused by abnormalities in the electrical system that coordinates contractions of the heart chambers. Cardiac conduction disease can lead to problems such as a slower-than-normal heart rate (bradycardia) or a rapid and uncoordinated contraction of the heart muscle (fibrillation). Cardiac conduction disease can occur along with other heart defects (such as ASD or VSD) or as the only heart problem in people with Holt-Oram syndrome. The features of Holt-Oram syndrome are similar to those of a condition called Duane-radial ray syndrome; however, these two disorders are caused by mutations in different genes.","Curated_Disease_Description_Source__c":"GARD:0006666","GARD_Synonym__c":"atriodigital dysplasia type 1; cardiac-limb syndrome; heart-hand syndrome type 1; heart-hand syndrome, type 1; holt oram syndrome; hos; tbx5-related holt-oram syndrome; ventriculo-radial syndrome","Name":"Holt-Oram syndrome","Curated_USA_Estimate__c":"5,000","estimateUsa":"5,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Reach: The Association for Children with Hand or Arm Deficiency","Website__c":"https://www.reach.org.uk/"},{"Account_Name__c":"Kids with Heart National Association for Children's Heart Disorders","Website__c":"https://kidswithheart.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":"Congenital Abnormality","Tag_Category__c":"Disease Category","category_description":"Birth defects are structural changes present at birth that can affect almost any part of the body, including how the body looks, works, or both.","curated_tag_name":"Birth defects"},{"Tag_Name__c":"Orthopedics","Tag_Category__c":"Specialist"},{"Tag_Name__c":"Congenital limb malformation","Tag_Category__c":"Account","curated_tag_name":"Limb anomalies"},{"Tag_Name__c":"Clinical Cardiac Electrophysiology","Tag_Category__c":"Specialist","curated_tag_name":"Clinical cardiac electrophysiology"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Neonatal","Provided_By__c":"ORPHA:392"},{"Age_At_Onset__c":"Antenatal","Provided_By__c":"ORPHA:392"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C0265264"}],"External_Identifier_Disease__c":[{"URL__c":"https://raresource.nih.gov/diseases/filter/0006666","Source__c":"RareSource"},{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1111","Source__c":"Gene Review","Xref__c":"NBK1111"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=19092004","Source__c":"C0265264; MONDO:0007732","Xref__c":"19092004"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0060468","Source__c":"MONDO:0007732","Xref__c":"DOID:0060468"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C125592","Source__c":"C0265264; MONDO:0007732","Xref__c":"C125592"},{"URL__c":"https://www.omim.org/entry/142900","Source__c":"C0265264; MONDO:0007732; ORPHA:392","Xref__c":"OMIM:142900"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C0265264","Source__c":"C0265264","Xref__c":"C0265264"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=120524","Source__c":"C0265264","Xref__c":"MEDGEN:120524"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C535326","Source__c":"MONDO:0007732","Xref__c":"C535326"},{"URL__c":"https://www.orpha.net/en/disease/detail/392","Source__c":"C0265264; MONDO:0007732; ORPHA:392","Xref__c":"ORPHA:392"},{"URL__c":"https://medlineplus.gov/genetics/condition/holt-oram-syndrome","Source__c":"GARD:0006666","Xref__c":"https://medlineplus.gov/genetics/condition/holt-oram-syndrome"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0007732","Source__c":"GARD:0006666","Xref__c":"MONDO:0007732"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"TBX5","GHR_URL__c":"https://medlineplus.gov/genetics/gene/tbx5","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal dominant"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","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":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Absent thumb, i.e., the absence of both phalanges of a thumb and the associated soft tissues.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009777","HPO_Synonym__c":"Absent thumb; Absent thumbs; Aplasia of the thumb; Thumb aplasia","HPO_Name__c":"Absent thumb","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Delay of conduction through the atrioventricular node, which is manifested as prolongation of the PR interval in the electrocardiogram (EKG). All atrial impulses reach the ventricles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011705","HPO_Name__c":"First degree atrioventricular block","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A small/hypoplastic or absent/aplastic radius.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006501","HPO_Synonym__c":"Absence or underdevelopment of the radius bone of the arm; Absent/small radius; Absent/underdeveloped radius; Radial aplasia/hypoplasia","HPO_Name__c":"Aplasia/Hypoplasia of the radius","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormal osseous union (fusion) between the radius and the ulna.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002974","HPO_Synonym__c":"Fused forearm bones","HPO_Name__c":"Radioulnar synostosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Increased thumb width without increased dorso-ventral dimension.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011304","HPO_Synonym__c":"Broad phalanges of the thumb; Broad thumb; Broad thumbs; Wide/broad thumb; Wide/broad thumb phalanges","HPO_Name__c":"Broad thumb","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Atrial septal defect (ASD) is a congenital abnormality of the interatrial septum that enables blood flow between the left and right atria via the interatrial septum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001631","HPO_Synonym__c":"An opening in the wall separating the top two chambers of the heart; ASD; Atria septal defect; Atrial septum defect; Atrioseptal defect; Defect in the atrial septum; Hole in heart wall separating two upper heart chambers","HPO_Name__c":"Atrial septal defect","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A condition in which middle parts of the hand (fingers and metacarpals) are missing giving a cleft appearance. The severity is very variable ranging from slightly hypoplastic middle fingers over absent middle fingers as far as oligo- or monodactyl hands.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001171","HPO_Synonym__c":"Ectrodactyly of the hand; Hand ectrodactyly; Split hand; Split-hand","HPO_Name__c":"Split hand","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Any structural anomaly of the structure of the humerus (i.e., upper arm bone).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0031095","HPO_Synonym__c":"Abnormality of the humerus","HPO_Name__c":"Abnormal humerus morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Any structural anomaly of the heart and blood vessels.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030680","HPO_Synonym__c":"Abnormality of cardiovascular system morphology; Cardiovascular malformations","HPO_Name__c":"Abnormal cardiovascular system morphology","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Episodes of atrial fibrillation that typically last for several hours up to one day and terminate spontaneously.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004757","HPO_Synonym__c":"Atrial fibrillation, paroxysmal; Intermittent atrial fibrillation; Paroxysmal AF","HPO_Name__c":"Paroxysmal atrial fibrillation","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An anomaly of the rib.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000772","HPO_Synonym__c":"Abnormality of the ribs; Rib abnormalities; Rib anomalies","HPO_Name__c":"Abnormal rib morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","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":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A developmental defect characterized by abnormal connection of one or more pulmonary veins to the superior or inferior vena cava, the right atrium, or the coronary sinus, resulting in a left-to-right shunt of oxygenated blood.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010772","HPO_Name__c":"Anomalous pulmonary venous return","Feature_System__c":"Cardiovascular System; Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of an abnormal lateral curvature of the spine.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002650","HPO_Name__c":"Scoliosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Exaggerated anterior convexity of the thoracic vertebral column.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002808","HPO_Synonym__c":"Gibbus deformity; Hunched back; Hyperkyphosis; Round back","HPO_Name__c":"Kyphosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the aorta.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001679","HPO_Synonym__c":"Abnormal aorta morphology; Abnormality of the aorta","HPO_Name__c":"Abnormal aortic morphology","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","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":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Webbing or fusion of the fingers, involving soft parts only or including bone structure. Bony fusions are referred to as \\\"bony\\\" Syndactyly if the fusion occurs in a radio-ulnar axis. Fusions of bones of the fingers in a proximo-distal axis are referred to as \\\"Symphalangism\\\".","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006101","HPO_Synonym__c":"Partial syndactyly","HPO_Name__c":"Finger syndactyly","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Low set, steeply sloping shoulders.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0200021","HPO_Synonym__c":"Down-sloping shoulders; Rounded shoulders; Rounded, sloping shoulders; Sloping shoulders","HPO_Name__c":"Down-sloping shoulders","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Joint stiffness is a perceived sensation of tightness in a joint or joints when attempting to move them after a period of inactivity. Joint stiffness typically subsides over time.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001387","HPO_Synonym__c":"Joint stiffness; Stiff joint; Stiff joints","HPO_Name__c":"Joint stiffness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A severe congenital heart defect characterized by underdevelopment of the left ventricle.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004383","HPO_Synonym__c":"Heart left ventricle hypoplasia; Left ventricular hypoplasia; Underdeveloped left heart","HPO_Name__c":"Hypoplastic left ventricle","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A defect of the chest wall characterized by a depression of the sternum, giving the chest (\\\"pectus\\\") a caved-in (\\\"excavatum\\\") appearance.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000767","HPO_Synonym__c":"Funnel chest","HPO_Name__c":"Pectus excavatum","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A congenital skeletal deformity characterized by the elevation of one scapula (thus, one scapula is located superior to the other).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000912","HPO_Synonym__c":"Congenital, upward displacement of the scapula; High scapula; High shoulder blade; Sprengel deformity","HPO_Name__c":"Sprengel anomaly","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A thumb with three phalanges in a single, proximo-distal axis. Thus, this term applies if the thumb has an accessory phalanx, leading to a digit like appearance of the thumb.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001199","HPO_Synonym__c":"Accessory phalanx of the thumb; Digitalized thumb; Finger-like thumb; Triphalangeal thumbs; Triphalangy of thumb","HPO_Name__c":"Triphalangeal thumb","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Missing or malformed long bones of the extremities with the distal parts (such as hands and/or feet) connected to the variably shortened or even absent extremity, leading to a flipper-like appearance, as opposed to other forms of limb malformations were either the entire limb is missing (such as amelia), or the distal part of a limb is absent (peromelia).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009829","HPO_Name__c":"Phocomelia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Any abnormal shape or structure of the metacarpal bones.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005916","HPO_Synonym__c":"Abnormal shape of long bones of hand; Abnormal shape of metacarpal bones","HPO_Name__c":"Abnormal metacarpal morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A defect of the atrioventricular septum of the heart.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006695","HPO_Synonym__c":"Atrioventricular septal defect; Endocardial cushion defect","HPO_Name__c":"Atrioventricular canal defect","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:392","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Any abnormality of the clavicles (collar bones).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000889","HPO_Synonym__c":"Abnormal clavicles; Abnormal collarbone; Abnormality of the clavicle","HPO_Name__c":"Abnormal clavicle morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Congenital Abnormality"],"Specialist":["Genetics","Cardiology","Orthopedics","Clinical Cardiac Electrophysiology","Pediatrics"],"Account":["Congenital limb malformation"]},"synonyms":["atriodigital dysplasia type 1"," cardiac-limb syndrome"," heart-hand syndrome type 1"," heart-hand syndrome, type 1"," holt oram syndrome"," hos"," tbx5-related holt-oram syndrome"," ventriculo-radial syndrome"]}