{"Name":"Emery-Dreifuss muscular dystrophy","DiseaseID__c":"GARD:0006329","id":6329,"encodedName":"emery-dreifuss-muscular-dystrophy","IsDeleted":false,"Disease_Name_Full__c":"Emery-Dreifuss muscular dystrophy","Xref_IDs__c":"111508004; C0410189; C84685; D020389; DOID:11726; MEDGEN:96078; MONDO:0016830; NBK1436; OMIMPS:310300; ORPHA:261","USA_Estimate__c":"5,000","No_of_Specialist_Tagsa__c":6,"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":4,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":1,"Description_Source__c":"MONDO:0016830","Disease_Description__c":"A neuromuscular disease that is characterized by muscular weakness and atrophy, with early joint contractures and cardiomyopathy.","GARD_Name__c":"Emery-Dreifuss muscular dystrophy","GARD_Synonym__c":"benign scapuloperoneal muscular dystrophy with early contractures; edmd; emd - emery-dreifuss muscular dystrophy; emery dreifuss muscular dystrophy; humeroperoneal neuromuscular disease, (formerly); scapuloperoneal syndrome, x-linked (formerly)","Curated_Disease_Description_Source__c":"GARD:0006329","Curated_Disease_Description__c":"Emery-Dreifuss muscular dystrophy is a condition that primarily affects muscles used for movement (skeletal muscles) and the heart (cardiac muscle). Among the earliest features of this disorder are joint deformities called contractures. Contractures restrict the movement of certain joints, most often the elbows, ankles, and neck, and usually become noticeable in early childhood. Most affected individuals also experience muscle weakness and wasting that worsen slowly over time, beginning in muscles of the upper arms and lower legs and later also affecting muscles in the shoulders and hips. Almost all people with Emery-Dreifuss muscular dystrophy develop heart problems by adulthood. In many cases, these heart problems are abnormalities of the electrical signals that control the heartbeat (cardiac conduction defects) and abnormal heart rhythms (arrhythmias). If untreated, these abnormalities can lead to a sensation of fluttering or pounding in the chest (palpitations), an unusually slow heartbeat (bradycardia), fainting (syncope), heart failure, and an increased risk of sudden death. Researchers have identified several types of Emery-Dreifuss muscular dystrophy that are distinguished by their pattern of inheritance: X-linked, autosomal dominant, and autosomal recessive. The types usually have similar signs and symptoms, although a small percentage of people with the autosomal dominant form experience heart problems without any weakness or wasting of skeletal muscles.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"5,000","Age_at_Onset_Snippet_Text__c":"as a Child","SourceID__c":"ORPHA:261","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Grouping","MONDO_ID__c":"MONDO:0016830","ORPHANET_ID__c":"ORPHA:261","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Distrofia muscular de emery-dreifuss","Spanish_Description_Source__c":"ORPHA:261","Spanish_Description__c":"Es una enfermedad neuromuscular caracterizada por debilidad muscular y atrofia, con contracturas articulares de inicio precoz y miocardiopatía.","Spanish_Disease_Name__c":"distrofia muscular de emery-dreifuss","Spanish_GARD_Synonym__c":null,"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":"Emery-Dreifuss muscular dystrophy is a condition that primarily affects muscles used for movement (skeletal muscles) and the heart (cardiac muscle). Among the earliest features of this disorder are joint deformities called contractures. Contractures restrict the movement of certain joints, most often the elbows, ankles, and neck, and usually become noticeable in early childhood. Most affected individuals also experience muscle weakness and wasting that worsen slowly over time, beginning in muscles of the upper arms and lower legs and later also affecting muscles in the shoulders and hips. Almost all people with Emery-Dreifuss muscular dystrophy develop heart problems by adulthood. In many cases, these heart problems are abnormalities of the electrical signals that control the heartbeat (cardiac conduction defects) and abnormal heart rhythms (arrhythmias). If untreated, these abnormalities can lead to a sensation of fluttering or pounding in the chest (palpitations), an unusually slow heartbeat (bradycardia), fainting (syncope), heart failure, and an increased risk of sudden death. Researchers have identified several types of Emery-Dreifuss muscular dystrophy that are distinguished by their pattern of inheritance: X-linked, autosomal dominant, and autosomal recessive. The types usually have similar signs and symptoms, although a small percentage of people with the autosomal dominant form experience heart problems without any weakness or wasting of skeletal muscles.","Curated_Disease_Description_Source__c":"GARD:0006329","GARD_Synonym__c":"benign scapuloperoneal muscular dystrophy with early contractures; edmd; emd - emery-dreifuss muscular dystrophy; emery dreifuss muscular dystrophy; humeroperoneal neuromuscular disease, (formerly); scapuloperoneal syndrome, x-linked (formerly)","Name":"Emery-Dreifuss muscular dystrophy","Curated_USA_Estimate__c":"5,000","estimateUsa":"5,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Muscular Dystrophy Canada","Website__c":"https://muscle.ca/"},{"Account_Name__c":"Cure CMD - Congenital Muscular Dystrophy","Website__c":"https://www.curecmd.org/"},{"Account_Name__c":"Muscular Dystrophy Association","Website__c":"https://www.mda.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":"Muscular Dystrophy","Tag_Category__c":"Account;Disease Category","category_description":"Muscular dystrophy refers to a group of inherited disorders that cause muscles to gradually weaken and break down.","curated_tag_name":"Muscular dystrophy"},{"Tag_Name__c":"Cardiomyopathy","Tag_Category__c":"Account","curated_tag_name":"Cardiomyopathy"},{"Tag_Name__c":"Neurodevelopmental disabilities","Tag_Category__c":"Specialist","curated_tag_name":"Neurodevelopmental disabilities"},{"Tag_Name__c":"Neuromuscular medicine","Tag_Category__c":"Specialist","curated_tag_name":"Neuromuscular medicine"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Childhood","Provided_By__c":"ORPHA:261"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C0410189"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A11726","Source__c":"MONDO:0016830","Xref__c":"DOID:11726"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C020389","Source__c":"C0410189; MONDO:0016830","Xref__c":"D020389"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C0410189","Source__c":"C0410189","Xref__c":"C0410189"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=96078","Source__c":"C0410189","Xref__c":"MEDGEN:96078"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C84685","Source__c":"C0410189; MONDO:0016830","Xref__c":"C84685"},{"URL__c":"https://www.orpha.net/en/disease/detail/261","Source__c":"C0410189; MONDO:0016830; ORPHA:261","Xref__c":"ORPHA:261"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=111508004","Source__c":"C0410189; MONDO:0016830","Xref__c":"111508004"},{"URL__c":"https://www.omim.org/phenotypicSeries/PS310300","Source__c":"MONDO:0016830","Xref__c":"OMIMPS:310300"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0016830","Source__c":"GARD:0006329","Xref__c":"MONDO:0016830"},{"URL__c":"https://medlineplus.gov/genetics/condition/emery-dreifuss-muscular-dystrophy","Source__c":"GARD:0006329","Xref__c":"https://medlineplus.gov/genetics/condition/emery-dreifuss-muscular-dystrophy"},{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1436","Source__c":"Gene Review","Xref__c":"NBK1436"}],"Inheritance__c":["X-linked recessive","Autosomal recessive","Autosomal dominant"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"Hypertrophic cardiomyopathy (HCM) is defined by the presence of increased ventricular wall thickness or mass in the absence of loading conditions (hypertension, valve disease) sufficient to cause the observed abnormality.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001639","HPO_Synonym__c":"Cardiomyopathy, hypertrophic; Enlarged and thickened heart muscle; HCM","HPO_Name__c":"Hypertrophic cardiomyopathy","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Presence of abnormal vacuoles (membrane-bound organelles) in the sarcolemma. On histological staining with hematoxylin and eosin, rimmed vacuoles are popcorn-like clear vacuoles with a densely blue rim. The vacuoles are often associated with cytoplasmic and occasionally intranuclear eosinophilic inclusions.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003805","HPO_Synonym__c":"Rimmed vacuoles on biopsy","HPO_Name__c":"Rimmed vacuoles","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An involuntary and painless delay in the relaxation of skeletal muscle following contraction or electrical stimulation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002486","HPO_Synonym__c":"Delayed relaxation of muscle fibers after contraction","HPO_Name__c":"Myotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","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:261","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"A loss of the ability to move the vocal folds.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001605","HPO_Synonym__c":"Inability to move vocal cords; Laryngeal paralysis","HPO_Name__c":"Vocal cord paralysis","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormal protrusion of the scapula away from the surface of the back.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003691","HPO_Synonym__c":"Scapula alata; Winged scapulae; Winged scapulas; Winged shoulder blade","HPO_Name__c":"Scapular winging","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"The heart suddenly and unexpectedly stops beating resulting in death within a short time period (generally within 1 h of symptom onset).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001645","HPO_Synonym__c":"Premature sudden cardiac death; Sudden cardiac death","HPO_Name__c":"Sudden cardiac death","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Excluded (0%)","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:261","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"The upper eyelid margin is positioned 3 mm or more lower than usual and covers the superior portion of the iris (objective); or, the upper lid margin obscures at least part of the pupil (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000508","HPO_Synonym__c":"Blepharoptosis; Drooping upper eyelid; Eyelid ptosis; Palpebral ptosis","HPO_Name__c":"Ptosis","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Muscular atrophy affecting proximally located muscles of the legs, i.e., of the thigh.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008956","HPO_Synonym__c":"Amyotrophy involving the thigh; Amyotrophy of the thigh musculature; Proximal lower limb muscle atrophy; Thigh muscle atrophy; Wasting of thigh muscle","HPO_Name__c":"Proximal lower limb amyotrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Immunohistochemistry shows complete lack of emerin protein in the muscle biopsy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030117","HPO_Name__c":"Absent muscle fiber emerin","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Dilated cardiomyopathy (DCM) is defined by the presence of left ventricular dilatation and left ventricular systolic dysfunction in the absence of abnormal loading conditions (hypertension, valve disease) or coronary artery disease sufficient to cause global systolic impairment. Right ventricular dilation and dysfunction may be present but are not necessary for the diagnosis.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001644","HPO_Synonym__c":"Cardiomyopathy, dilated; Congestive cardiomyopathy; DCM; Stretched and thinned heart muscle","HPO_Name__c":"Dilated cardiomyopathy","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"A ventricular escape rhythm occurs whenever higher-lever pacemakers in AV junction or sinus node fail to control ventricular activation. Escape rate is usually 20-40 bpm, often associated with broad QRS complexes (at least 120 ms).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005155","HPO_Synonym__c":"Idioventricular escape rhythm","HPO_Name__c":"Ventricular escape rhythm","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The term gait disturbance can refer to any disruption of the ability to walk.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001288","HPO_Synonym__c":"Abnormal gait; Abnormal walk; Difficulty in walking; Gait abnormalities; Gait difficulties; Gait disturbances; Impaired gait; Walking disability","HPO_Name__c":"Gait disturbance","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Degenerative changes of the fat tissue.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009125","HPO_Synonym__c":"Inability to make and keep healthy fat tissue","HPO_Name__c":"Lipodystrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Accumulation of substantial excess body fat.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001513","HPO_Synonym__c":"Having too much body fat; Obesity","HPO_Name__c":"Obesity","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Diminution of tendon reflexes, which is an invariable sign of peripheral nerve disease.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001315","HPO_Synonym__c":"Absent or decreased deep tendon reflexes; Decreased deep tendon reflexes; Decreased tendon reflexes; Decreased to absent deep tendon reflexes; Decreased/absent deep tendon reflexes; Depressed tendon reflexes; Diminished deep tendon reflexes; Diminished or absent deep tendon reflexes; Diminished or absent tendon reflexes; Hypoactive to absent deep tendon reflexes; Impaired tendon reflexes; Reduced/absent deep tendon reflexes; Weak or absent deep tendon reflexes","HPO_Name__c":"Reduced tendon reflexes","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An elbow contracture that limits the ability of the elbow joint to be extended (straightened), meaning that the elbow is fixed in an flexed (bent) position.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002987","HPO_Synonym__c":"Elbow flexion contractures; Elbow flexion deformity; Fixed flexion at the elbow joint","HPO_Name__c":"Elbow flexion contracture","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Occasional (5-29%)","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:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004631","HPO_Synonym__c":"Contracture of post-cervical muscles","HPO_Name__c":"Decreased cervical spine flexion due to contractures of posterior cervical muscles","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Occasional (5-29%)","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:261","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An elevation of the level of the enzyme creatine kinase (also known as creatine phosphokinase (CK; EC 2.7.3.2) in the blood. CK levels can be elevated in a number of clinical disorders such as myocardial infarction, rhabdomyolysis, and muscular dystrophy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003236","HPO_Synonym__c":"Elevated blood creatine phosphokinase; Elevated circulating creatine phosphokinase; Elevated creatine kinase; Elevated serum CPK; Elevated serum creatine kinase; Elevated serum creatine phosphokinase; High serum creatine kinase; Increased CPK; Increased creatine kinase; Increased creatine phosphokinase; Increased serum CK; Increased serum creatine kinase; Increased serum creatine phosphokinase","HPO_Name__c":"Elevated circulating creatine kinase concentration","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the skin characterized the presence of excessive amounts of dry surface scales on the skin resulting from an abnormality of keratinization.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008064","HPO_Synonym__c":"Ichthyosiform abnormality of the skin; Ichthyotic skin","HPO_Name__c":"Ichthyosis","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002747","HPO_Synonym__c":"Decreased lung function due to weak breathing muscles; Decreased respiratory function due to muscle weakness; Respiratory distress due to muscle weakness; Respiratory failure due to muscle weakness; Respiratory muscle weakness","HPO_Name__c":"Respiratory insufficiency due to muscle weakness","Feature_System__c":"Musculoskeletal System; Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormal increase in the level of triglycerides in the blood.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002155","HPO_Synonym__c":"Increased circulating Tg levels; Increased plasma Tg levels; Increased plasma triglycerides; Increased serum triglycerides; Increased triglycerides","HPO_Name__c":"Hypertriglyceridemia","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An elevated concentration of low-density lipoprotein cholesterol in the blood.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003141","HPO_Synonym__c":"Hyperbetalipoproteinemia; Increased beta-lipoproteins; Increased circulating LDL level; Increased circulating low-density lipoprotein cholesterol; Increased circulating low-density lipoprotein levels; Increased LDL cholesterol; Increased LDLc concentration; Increased plasma LDL levels","HPO_Name__c":"Increased LDL cholesterol concentration","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Occasional (5-29%)","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:261","HPO_Frequency__c":"Occasional (5-29%)","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:261","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A type of arrhythmia that originates above the ventricles, whereby the electrical impulse propagates down the normal His Purkinje system similar to normal sinus rhythm.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005115","HPO_Synonym__c":"Supraventricular arrhythmias","HPO_Name__c":"Supraventricular arrhythmia","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A lack of strength of the proximal muscles of the legs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008994","HPO_Synonym__c":"Muscle weakness, proximal, lower limbs; Proximal muscle weakness in lower limbs","HPO_Name__c":"Proximal lower limb muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","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:261","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Muscular dystrophy affecting the muscles of the limb girdle (the hips and shoulders).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006785","HPO_Synonym__c":"limb girdle muscular dystrophy","HPO_Name__c":"Limb-girdle muscular dystrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Muscular atrophy affecting proximally located muscles of the arms.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008948","HPO_Synonym__c":"Proximal muscle atrophy in upper limbs; Proximal upper limb muscle atrophy","HPO_Name__c":"Proximal upper limb amyotrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduced ability to move the vertebral column with a resulting limitation of neck and trunk flexion.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003306","HPO_Synonym__c":"Reduced spine movement; Rigid spine","HPO_Name__c":"Spinal rigidity","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Weakness of the hip girdle and upper thigh muscles, for instance in myopathies, leads to an instability of the pelvis on standing and walking. If the muscles extending the hip joint are affected, the posture in that joint becomes flexed and lumbar lordosis increases. The patients usually have difficulties standing up from a sitting position. Due to weakness in the gluteus medius muscle, the hip on the side of the swinging leg drops with each step (referred to as Trendelenburg sign). The gait appears waddling. The patients frequently attempt to counteract the dropping of the hip on the swinging side by bending the trunk towards the side which is in the stance phase (in the German language literature this is referred to as Duchenne sign). Similar gait patterns can be caused by orthopedic conditions when the origin and the insertion site of the gluteus medius muscle are closer to each other than normal, for instance due to a posttraumatic elevation of the trochanter or pseudarthrosis of the femoral neck.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002515","HPO_Synonym__c":"Waddling gait; Waddling walk","HPO_Name__c":"Waddling gait","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Very frequent (80-99%)","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:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the back.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003418","HPO_Synonym__c":"Back pain","HPO_Name__c":"Back pain","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Abnormally increased curvature (anterior concavity) of the lumbar or cervical spine.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003307","HPO_Synonym__c":"Lordosis; Prominent swayback","HPO_Name__c":"Hyperlordosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A lack of strength of the proximal muscles of the arms.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008997","HPO_Synonym__c":"Proximal muscle weakness in upper limbs","HPO_Name__c":"Proximal upper limb muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Atrophy (wasting) affecting primary type 1 muscle fibers. This feature in general can only be observed on muscle biopsy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011807","HPO_Name__c":"Type 1 muscle fiber atrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A disorder of muscle unrelated to impairment of innervation or neuromuscular junction.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003198","HPO_Synonym__c":"Muscle tissue disease; Myopathic changes","HPO_Name__c":"Myopathy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A contracture of the Achilles tendon.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001771","HPO_Synonym__c":"Achilles tendon contractures; Contractures of the Achilles tendon; Shortening of the achilles tendon; Tight achilles tendon","HPO_Name__c":"Achilles tendon contracture","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormal gait pattern characterized by the failure of the heel to contact the floor at the onset of stance during gait.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030051","HPO_Synonym__c":"Tiptoe gait; Toe walking; Walking on tiptoes","HPO_Name__c":"Tip-toe gait","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:261","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of abnormal electromyographic patterns indicative of myopathy, such as small-short polyphasic motor unit potentials.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003458","HPO_Synonym__c":"EMG: myopathic changes; EMG: myopathy; Myopathic electromyogram","HPO_Name__c":"EMG: myopathic abnormalities","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Procedure_EMG"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology","Muscular Dystrophy"],"Specialist":["Genetics","Cardiology","Neurology","Neurodevelopmental disabilities","Neuromuscular medicine","Pediatrics"],"Account":["Muscular Dystrophy","Cardiomyopathy"]},"synonyms":["benign scapuloperoneal muscular dystrophy with early contractures"," edmd"," emd - emery-dreifuss muscular dystrophy"," emery dreifuss muscular dystrophy"," humeroperoneal neuromuscular disease, (formerly)"," scapuloperoneal syndrome, x-linked (formerly)"]}