From HPO
Sudden cardiac death- MedGen UID:
- 38841
- •Concept ID:
- C0085298
- •
- Pathologic Function
The heart suddenly and unexpectedly stops beating resulting in death within a short time period (generally within 1 h of symptom onset).
Cardiac arrhythmia- MedGen UID:
- 2039
- •Concept ID:
- C0003811
- •
- Finding
Any cardiac rhythm other than the normal sinus rhythm. Such a rhythm may be either of sinus or ectopic origin and either regular or irregular. An arrhythmia may be due to a disturbance in impulse formation or conduction or both.
Atrioventricular block- MedGen UID:
- 13956
- •Concept ID:
- C0004245
- •
- Disease or Syndrome
Delayed or lack of conduction of atrial depolarizations through the atrioventricular node to the ventricles.
Primary dilated cardiomyopathy- MedGen UID:
- 2880
- •Concept ID:
- C0007193
- •
- Disease or Syndrome
Familial dilated cardiomyopathy is a genetic form of heart disease. It occurs when heart (cardiac) muscle becomes thin and weakened in at least one chamber of the heart, causing the open area of the chamber to become enlarged (dilated). As a result, the heart is unable to pump blood as efficiently as usual. To compensate, the heart attempts to increase the amount of blood being pumped through the heart, leading to further thinning and weakening of the cardiac muscle. Over time, this condition results in heart failure.\n\nIt usually takes many years for symptoms of familial dilated cardiomyopathy to cause health problems. They typically begin in mid-adulthood, but can occur at any time from infancy to late adulthood. Signs and symptoms of familial dilated cardiomyopathy can include an irregular heartbeat (arrhythmia), shortness of breath (dyspnea), extreme tiredness (fatigue), fainting episodes (syncope), and swelling of the legs and feet. In some cases, the first sign of the disorder is sudden cardiac death. The severity of the condition varies among affected individuals, even in members of the same family.
Congestive heart failure- MedGen UID:
- 9169
- •Concept ID:
- C0018802
- •
- Disease or Syndrome
The presence of an abnormality of cardiac function that is responsible for the failure of the heart to pump blood at a rate that is commensurate with the needs of the tissues or a state in which abnormally elevated filling pressures are required for the heart to do so. Heart failure is frequently related to a defect in myocardial contraction.
Atrioventricular reentrant tachycardia- MedGen UID:
- 87403
- •Concept ID:
- C0340477
- •
- Disease or Syndrome
Accessory pathway-related atrioventricular reentrant tachycardia (AVRT) involves an abnormal electrical conduction of the accessory pathway. The accessory pathway connecting impulses between the atrium and the ventricle can be seen at any site in the AV groove.
Severely reduced left ventricular ejection fraction- MedGen UID:
- 868396
- •Concept ID:
- C4022790
- •
- Finding
A large reduction in the fraction of blood pumped from the left ventricle with each cardiac cycle. The normal range in adults is at over 50 percent, and a severe reduction is defined as less than 30 percent.
Motor delay- MedGen UID:
- 381392
- •Concept ID:
- C1854301
- •
- Finding
A type of Developmental delay characterized by a delay in acquiring motor skills.
Joint contracture- MedGen UID:
- 3228
- •Concept ID:
- C0009918
- •
- Anatomical Abnormality
A limitation in the passive range of motion of a joint resulting from loss of elasticity in the periarticular tissues owing to structural changes of non-bony tissues, such as muscles, tendons, ligaments, joint capsules or skin. A contracture prevents movement of the associated body part.
Myopathy- MedGen UID:
- 10135
- •Concept ID:
- C0026848
- •
- Disease or Syndrome
A disorder of muscle unrelated to impairment of innervation or neuromuscular junction.
Scoliosis- MedGen UID:
- 11348
- •Concept ID:
- C0036439
- •
- Disease or Syndrome
The presence of an abnormal lateral curvature of the spine.
Difficulty climbing stairs- MedGen UID:
- 68676
- •Concept ID:
- C0239067
- •
- Finding
Reduced ability to climb stairs.
Weakness of facial musculature- MedGen UID:
- 98103
- •Concept ID:
- C0427055
- •
- Disease or Syndrome
Reduced strength of one or more muscles innervated by the facial nerve (the seventh cranial nerve).
Difficulty running- MedGen UID:
- 108251
- •Concept ID:
- C0560346
- •
- Finding
Reduced ability to run.
Generalized muscle weakness- MedGen UID:
- 155433
- •Concept ID:
- C0746674
- •
- Sign or Symptom
Generalized weakness or decreased strength of the muscles, affecting both distal and proximal musculature.
Centrally nucleated skeletal muscle fibers- MedGen UID:
- 330782
- •Concept ID:
- C1842170
- •
- Finding
An abnormality in which the nuclei of sarcomeres take on an abnormally central localization (or in which this feature is found in an increased proportion of muscle cells).
Calf muscle hypertrophy- MedGen UID:
- 335868
- •Concept ID:
- C1843057
- •
- Finding
Muscle hypertrophy affecting the calf muscles.
Increased variability in muscle fiber diameter- MedGen UID:
- 336019
- •Concept ID:
- C1843700
- •
- Finding
An abnormally high degree of muscle fiber size variation. This phenotypic feature can be observed upon muscle biopsy.
Congenital multicore myopathy with external ophthalmoplegia- MedGen UID:
- 340597
- •Concept ID:
- C1850674
- •
- Disease or Syndrome
Congenital myopathy-1B (CMYO1B) is an autosomal recessive disorder of skeletal muscle characterized by severe hypotonia and generalized muscle weakness apparent soon after birth or in early childhood with delayed motor development, generalized muscle weakness and atrophy, and difficulty walking or running. Affected individuals show proximal muscle weakness with axial and shoulder girdle involvement, external ophthalmoplegia, and bulbar weakness, often resulting in feeding difficulties and respiratory insufficiency. Orthopedic complications such as joint laxity, distal contractures, hip dislocation, cleft palate, and scoliosis are commonly observed. Serum creatine kinase is normal. The phenotype is variable in severity (Jungbluth et al., 2005; Bharucha-Goebel et al., 2013). Some patients show symptoms in utero, including reduced fetal movements, polyhydramnios, and intrauterine growth restriction. The most severely affected patients present in utero with fetal akinesia, arthrogryposis, and lung hypoplasia resulting in fetal or perinatal death (McKie et al., 2014). Skeletal muscle biopsy of patients with recessive RYR1 mutations can show variable features, including multiminicores (Ferreiro and Fardeau, 2002), central cores (Jungbluth et al., 2002), congenital fiber-type disproportion (CFTD) (Monnier et al., 2009), and centronuclear myopathy (Wilmshurst et al., 2010).
For a discussion of genetic heterogeneity of congenital myopathy, see CMYO1A (117000).
Increased endomysial connective tissue- MedGen UID:
- 867771
- •Concept ID:
- C4022161
- •
- Finding
An increased volume of the endomysium, which is a connective tissue sheath that surrounds each muscule fiber. Together, bundles of muscle fibers form a fasciculus, surrounded by another layer of connective tissue called the perimysium.
Elevated circulating creatine kinase concentration- MedGen UID:
- 69128
- •Concept ID:
- C0241005
- •
- Finding
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.
Ptosis- MedGen UID:
- 2287
- •Concept ID:
- C0005745
- •
- Disease or Syndrome
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).
Mitochondrial depletion- MedGen UID:
- 868267
- •Concept ID:
- C4022659
- •
- Finding
An abnormal reduction in mitochondrial DNA content of cells.
- Abnormal cellular phenotype
- Abnormality of metabolism/homeostasis
- Abnormality of the cardiovascular system
- Abnormality of the eye
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system
- Constitutional symptom