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Items: 14

1.

Sudden cardiac death

The heart suddenly and unexpectedly stops beating resulting in death within a short time period (generally within 1 h of symptom onset). [from HPO]

MedGen UID:
38841
Concept ID:
C0085298
Pathologic Function
2.

Arrhythmia

An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heart beat. Many factors can affect your heart's rhythm, such as having had a heart attack, smoking, congenital heart defects, and stress. Some substances or medicines may also cause arrhythmias. . Symptoms of arrhythmias include. -Fast or slow heart beat. -Skipping beats. -Lightheadedness or dizziness. -Chest pain. -Shortness of breath . -Sweating . Your doctor can run tests to find out if you have an arrhythmia. Treatment to restore a normal heart rhythm may include medicines, an implantable cardioverter-defibrillator (ICD) or pacemaker, or sometimes surgery. . NIH: National Heart, Lung, and Blood Institute.  [from MedlinePlus]

MedGen UID:
2039
Concept ID:
C0003811
Finding; Finding
3.

Aging

Progressive damage to mitochondrial DNA (mtDNA) during life is thought to contribute to aging processes. This notion is supported by the observation of an aging-related accumulation in human mtDNA of oxidative and alkylation derivatives of nucleotides, of small deletions and insertions, and of large deletions, although their low frequency raises questions about their functional significance (Michikawa et al., 1999). [from OMIM]

MedGen UID:
1376
Concept ID:
C0001811
Organism Function
4.

Abnormality of the cardiovascular system

Any abnormality of the cardiovascular system. [from HPO]

MedGen UID:
427888
Concept ID:
CN001481
Finding
5.

Dysequilibrium syndrome

VLDLR-associated cerebellar hypoplasia is an inherited condition that affects the development of the brain. People with this condition have an unusually small and underdeveloped cerebellum, which is the part of the brain that coordinates movement. This brain malformation leads to problems with balance and coordination (ataxia) that become apparent in infancy and remain stable over time. Children with VLDLR-associated cerebellar hypoplasia may learn to walk later in childhood, usually after the age of 6, although some are never able to walk independently. In one Turkish family, affected people walk on their hands and feet (quadrupedal locomotion).Additional features of VLDLR-associated cerebellar hypoplasia include moderate to profound intellectual disability, impaired speech (dysarthria) or a lack of speech, and eyes that do not look in the same direction (strabismus). Some affected individuals have also had flat feet (pes planus), seizures, and short stature. Studies suggest that VLDLR-associated cerebellar hypoplasia does not significantly affect a person's life expectancy.
[from GHR]

MedGen UID:
98295
Concept ID:
C0394006
Disease or Syndrome
6.

Sudden death

Rapid and unexpected death. [from HPO]

MedGen UID:
8257
Concept ID:
C0011071
Pathologic Function
7.

Disorder of cardiovascular system

Any abnormality of the cardiovascular system. [from HPO]

MedGen UID:
2848
Concept ID:
C0007222
Disease or Syndrome
8.

Long QT syndrome

A ventricular arrhythmia characterized by syncopal episodes and a long QT interval, sometimes leading to sudden death due to paroxysmal ventricular arrhythmia. This arrhythmia is associated with a prolongation of repolarization following depolarization of the cardiac ventricles. The prolongation of the Q-T interval combined with torsades de pointes manifests as several different forms; some may be acquired or congenital; some may lead to serious arrhythmia and sudden cardiac death. (NCI) [from NCI]

MedGen UID:
44193
Concept ID:
C0023976
Disease or Syndrome
9.

Tachycardia

Tachyarrhythmia is any disturbance of the heart rhythm in which the heart rate is abnormally increased. [from NCI]

MedGen UID:
21453
Concept ID:
C0039231
Finding; Finding; Finding
10.

Torsades de pointes

A type of ventricular tachycardia characterized by polymorphioc QRS complexes that change in amplitue and cycle length, and thus have the appearance of oscillating around the baseline in the EKG. [from HPO]

MedGen UID:
21214
Concept ID:
C0040479
Disease or Syndrome
11.

Ventricular tachycardia

An abnormally rapid ventricular rhythm usually in excess of 150 beats per minute. It is generated within the ventricle below the BUNDLE OF HIS, either as autonomic impulse formation or reentrant impulse conduction. Depending on the etiology, onset of ventricular tachycardia can be paroxysmal (sudden) or nonparoxysmal, its wide QRS complexes can be uniform or polymorphic, and the ventricular beating may be independent of the atrial beating (AV dissociation). [from MeSH]

MedGen UID:
12068
Concept ID:
C0042514
Disease or Syndrome; Finding
12.

Malformation of the heart

A congenital heart defect is a problem with the structure of the heart. It is present at birth. Congenital heart defects are the most common type of birth defect. The defects can involve the walls of the heart, the valves of the heart, and the arteries and veins near the heart. They can disrupt the normal flow of blood through the heart. The blood flow can slow down, go in the wrong direction or to the wrong place, or be blocked completely. Doctors use a physical exam and special heart tests to diagnose congenital heart defects. They often find severe defects during pregnancy or soon after birth. Signs and symptoms of severe defects in newborns include. -Rapid breathing. -Cyanosis - a bluish tint to the skin, lips, and fingernails. -Fatigue. -Poor blood circulation. Many congenital heart defects cause few or no signs and symptoms. They are often not diagnosed until children are older. Many children with congenital heart defects don't need treatment, but others do. Treatment can include medicines, catheter procedures, surgery, and heart transplants. The treatment depends on the type of the defect, how severe it is, and a child's age, size, and general health. NIH: National Heart, Lung, and Blood Institute.  [from MedlinePlus]

MedGen UID:
6748
Concept ID:
C0018798
Congenital Abnormality
13.

Heart disease

If you're like most people, you think that heart disease is a problem for others. But heart disease is the number one killer in the U.S. It is also a major cause of disability. There are many different forms of heart disease. The most common cause of heart disease is narrowing or blockage of the coronary arteries, the blood vessels that supply blood to the heart itself. This is called coronary artery disease and happens slowly over time. It's the major reason people have heart attacks. Other kinds of heart problems may happen to the valves in the heart, or the heart may not pump well and cause heart failure. Some people are born with heart disease. You can help reduce your risk of heart disease by taking steps to control factors that put you at greater risk:. - Control your blood pressure. - Lower your cholesterol. - Don't smoke. - Get enough exercise. NIH: National Heart, Lung, and Blood Institute.  [from MedlinePlus]

MedGen UID:
5458
Concept ID:
C0018799
Disease or Syndrome
14.

Long QT syndrome 10

Long QT syndrome (LQTS) is a cardiac electrophysiologic disorder, characterized by QT prolongation and T-wave abnormalities on the ECG and the ventricular tachycardia torsade de pointes (TdP). TdP is usually self-terminating, thus causing a syncopal event, the most common symptom in individuals with LQTS. Syncope typically occurs during exercise and high emotions, less frequently at rest or during sleep, and usually without warning. In some instances, TdP degenerates to ventricular fibrillation and causes aborted cardiac arrest (if the individual is defibrillated) or sudden death. Approximately 50% of individuals with a pathogenic variant in one of the genes associated with LQTS have symptoms, usually one to a few syncopal spells. While cardiac events may occur from infancy through middle age, they are most common from the pre-teen years through the 20s. Some types of LQTS are associated with a phenotype extending beyond cardiac arrhythmia. In addition to the prolonged QT interval, associations include muscle weakness and facial dysmorphism in Andersen-Tawil syndrome (LQTS type 7), hand/foot, facial, and neurodevelopmental features in Timothy syndrome (LQTS type 8) and profound sensorineural hearing loss in Jervell and Lange-Nielson syndrome. [from GeneReviews]

MedGen UID:
394836
Concept ID:
C2678484
Disease or Syndrome
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