What is Long Q-T Syndrome?
Long Q-T Syndrome is a disorder of the heart's electrical rhythm. It is a hereditary condition, and can occur in people who otherwish appear to be healthy. When the heart's rhythm is abnormal it is called arrythmia. Arrhythmia in people with Long Q-T Syndrome is often associated with exercise and/or excitement. The electrical signals that the heart sends off occur when the heart contracts, and they can be recorded on an electrocardiogram (ECG). The ECG records distinct waveforms which are identified by letters - P, Q, R, S, and T. The Q-T part of the wave represents how long it takes for the ventricles to activate and then become inactive. This is this activation and inactivation is measured in fractions of a second. If this time is longer than the expected time it is referred to as a prolonged Q-T interval, which is where Long Q-T Syndrome comes from.

What are the symptoms of Long Q-T Syndrome?
Symptoms of Long Q-T Syndrome vary. Many people do not experience any symptoms at all while others could experience more serious symptoms such as going deaf or even sudden death. Some people experience symptoms such as fainting or abnormal heartbeat during exercise or in times of extreme emotion such as anger, fright, or pain.

How is Long Q-T Syndrome treated?
Long Q-T Syndrome can be treated with medications, surgery, and/or implantable defribrillator. Arrhythmia prevention and arrhythmia termination are also often used in treatment of Long Q-T Syndrome.