Long QT syndrome is a hereditary disorder that disrupts the normal electrical rhythm of the heart. The electrical signals of the heart are recorded in an electrocardiograph in a recognizable wave pattern with various points that are labeled P, Q, R, S, and T.
The interval in which the lower chambers of the heart (ventricles) activate, contract, and inactivate is called the QT interval. In this disorder, the time of the QT interval is longer than normal.
Causes of long QT syndrome include certain medications, stroke, familial history, or other neurological disorders.
Symptoms of long QT syndrome include:
Your UT Southwestern Medical Center doctor will use several tests to determine the problem. Common diagnostic tests include:
Treatments for long QT syndrome include:
To schedule an appointment with a long QT syndrome expert at UT Southwestern's facilities in Dallas or for more information about our services, request an appointment or call 214-645-8300.