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Items: 1 to 20 of 30

1.

Tachycardia

A rapid heartrate that exceeds the range of the normal resting heartrate for age. [from HPO]

MedGen UID:
21453
Concept ID:
C0039231
Finding; Finding; Pathologic Function
2.

Ventricular tachycardia

MedGen UID:
776567
Concept ID:
C2108113
Laboratory or Test Result
3.

Ventricular tachycardia, catecholaminergic polymorphic, 2

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is characterized by episodic syncope occurring during exercise or acute emotion in individuals without structural cardiac abnormalities. The underlying cause of these episodes is the onset of fast ventricular tachycardia (bidirectional or polymorphic). Spontaneous recovery may occur when these arrhythmias self-terminate. In other instances, ventricular tachycardia may degenerate into ventricular fibrillation and cause sudden death if cardiopulmonary resuscitation is not readily available. The mean age of onset of symptoms (usually a syncopal episode) is between age seven and twelve years; onset as late as the fourth decade of life has been reported. If untreated, CPVT is highly lethal, as approximately 30% of affected individuals experience at least one cardiac arrest and up to 80% one or more syncopal spells. Sudden death may be the first manifestation of the disease. [from GeneReviews]

MedGen UID:
393837
Concept ID:
C2677794
Disease or Syndrome
4.

Catecholaminergic polymorphic ventricular tachycardia

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is characterized by episodic syncope occurring during exercise or acute emotion in individuals without structural cardiac abnormalities. The underlying cause of these episodes is the onset of fast ventricular tachycardia (bidirectional or polymorphic). Spontaneous recovery may occur when these arrhythmias self-terminate. In other instances, ventricular tachycardia may degenerate into ventricular fibrillation and cause sudden death if cardiopulmonary resuscitation is not readily available. The mean age of onset of symptoms (usually a syncopal episode) is between age seven and twelve years; onset as late as the fourth decade of life has been reported. If untreated, CPVT is highly lethal, as approximately 30% of affected individuals experience at least one cardiac arrest and up to 80% one or more syncopal spells. Sudden death may be the first manifestation of the disease. [from GeneReviews]

MedGen UID:
351513
Concept ID:
C1631597
Disease or Syndrome
5.

Ventricular tachycardia, polymorphic

An electrocardiographic finding of a ventricular tachycardia in which the QRS complexes have a variable morphology and often rate. (CDISC) [from NCI]

MedGen UID:
138002
Concept ID:
C0344432
Disease or Syndrome
6.

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
7.

Methyl xanthine

MedGen UID:
17636
Concept ID:
C0066447
Organic Chemical; Pharmacologic Substance
8.

Syndrome

A set of symptoms or conditions that occur together and suggest the presence of a certain disease or an increased chance of developing the disease. [from NCI_NCI-GLOSS]

MedGen UID:
11688
Concept ID:
C0039082
Disease or Syndrome
9.

Serine

Amino acid with side chain -CH2OH. [from NCI_CRCH]

MedGen UID:
11382
Concept ID:
C0036720
Amino Acid, Peptide, or Protein; Biologically Active Substance; Pharmacologic Substance
10.

Phosphorylation

A process in which a phosphate group is added to a molecule, such as a sugar or a protein. [from NCI_NCI-GLOSS]

MedGen UID:
10742
Concept ID:
C0031715
Molecular Function
11.

Cardiac 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
12.

Borries syndrome

MedGen UID:
542920
Concept ID:
C0270677
Disease or Syndrome
13.

Andersen Tawil syndrome

Andersen-Tawil syndrome (ATS) is characterized by a triad of episodic flaccid muscle weakness (i.e., periodic paralysis), ventricular arrhythmias and prolonged QT interval, and anomalies including low-set ears, widely spaced eyes, small mandible, fifth-digit clinodactyly, syndactyly, short stature, and scoliosis. Affected individuals present in the first or second decade with either cardiac symptoms (palpitations and/or syncope) or weakness that occurs spontaneously following prolonged rest or following rest after exertion. Mild permanent weakness is common. Mild learning difficulties and a distinct neurocognitive phenotype (i.e., deficits in executive function and abstract reasoning) have been described. [from GeneReviews]

MedGen UID:
327586
Concept ID:
C1563715
Disease or Syndrome
14.

Arrhythmia

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. [from HPO]

MedGen UID:
167788
Concept ID:
C0855329
Finding
15.

Negative

An absence finding of the specified component / analyte, organism or clinical sign based on the established threshold of the performed test or procedure. [Note: Negative does not necessarily imply the complete absence of the specified item.].  [from HL7]

MedGen UID:
61377
Concept ID:
C0205160
Finding
16.

Catecholamine

any of various substances that contain a benzene ring with two adjacent hydroxyl groups and a side chain of ethylamine and that function as hormones or neurotransmitters or both; examples are dopamine, norepinephrine, and epinephrine. [from CRISP]

MedGen UID:
805
Concept ID:
C0007412
Biologically Active Substance; Pharmacologic Substance
17.

Disease Attributes

Clinical characteristics of disease or illness. [from MeSH]

MedGen UID:
199876
Concept ID:
C0752357
Disease or Syndrome
18.

Genetic predisposition

A latent susceptibility to disease at the genetic level, which may be activated under certain conditions. [from MeSH]

MedGen UID:
137259
Concept ID:
C0314657
Organism Attribute
19.

Abnormality of the cardiovascular system

Any abnormality of the cardiovascular system. [from HPO]

MedGen UID:
116727
Concept ID:
C0243050
Disease or Syndrome
20.

Long QT syndrome

A ventricular arrhythmia characterized by a long QT interval, and accompanied by syncopal episodes 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. [from NCI]

MedGen UID:
44193
Concept ID:
C0023976
Disease or Syndrome
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