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Items: 3

1.

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
2.

T-wave alternans

An electrocardiographic finding in which there are variations in the shape, amplitude, or direction of the T wave from one beat to the next. [from NCI]

MedGen UID:
745313
Concept ID:
C1998313
Finding
3.

Prolonged QT interval

Increased time between the start of the Q wave and the end of the T wave as measured by the electrocardiogram (EKG). [from HPO]

MedGen UID:
57494
Concept ID:
C0151878
Finding
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