Long QT Syndrome

Description

What is Long QT Syndrome?
Long QT syndrome (LQTS) is a disorder of the heart's electrical activity that may cause dangerous heart rhythms, in particular in response to exercise or stress.

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Causes and Risk Factors

What are the causes and risk factors of Long QT Syndrome?
LQTS is a rare condition that is usually inherited, but may also be acquired by certain medicines and conditions.

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Symptoms

What are the symptoms of Long QT Syndrome?
The signs and symptoms of LQTS-related arrhythmias include dizziness unexplained fainting or seizures, drowning or near drowning (due to fainting while swimming), sudden cardiac arrest and sudden death.

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Diagnosis

How is Long QT Syndrome diagnosed?
To diagnose LQTS, your doctor will consider your electrocardiogram (ECG or EKG) results, your personal and family medical histories, and genetic test results.

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Treatment

How is Long QT Syndrome treated?
Treatments for LQTS include lifestyle changes, medicines, implanted medical devices, and surgery to regulate your heartbeat.

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