Long QT Syndrome

Long QT Syndrome (LQTS) is a rare inherited or acquired heart condition characterized by a prolonged QT interval on the ECG that can lead to life-threatening arrhythmias. The name "Long QT Syndrome" comes from the abnormal pattern seen on an EKG, which is used to measure the electrical activity of the heart.

Pronunciation

Long QT Syndrome is pronounced as "long Q-T syndrome".

Etymology

The term "Long QT Syndrome" is derived from the distinctive pattern seen on an ECG where the QT interval (the time between the start of the Q wave and the end of the T wave) is longer than normal.

Symptoms

Symptoms of Long QT Syndrome may include fainting, seizures, or sudden death. These symptoms are often triggered by exercise or stress. However, some people with Long QT Syndrome may not experience any symptoms.

Causes

Long QT Syndrome can be inherited, meaning it is passed down through families. It can also be acquired, meaning it is caused by certain medications or medical conditions. Some common causes include certain medications, electrolyte imbalances, and certain genetic mutations.

Diagnosis

Long QT Syndrome is typically diagnosed through an ECG, which measures the electrical activity of the heart. Other tests may include a stress test, genetic testing, or a Holter monitor test.

Treatment

Treatment for Long QT Syndrome may include medications, lifestyle changes, or surgery. The goal of treatment is to prevent sudden death from a dangerous heart rhythm.

Related Terms

• Arrhythmia
• Electrocardiogram
• QT interval
• Holter monitor

External links

• Medical encyclopedia article on Long QT Syndrome
• Wikipedia's article - Long QT Syndrome

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