Long QT Syndrome history and symptoms

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Overview

History and Symptoms

• Seizures - if the heart continues to beat abnormally, the brain can become deprived of oxygen, which can then cause seizures.
• Fainting - fainting or syncope is the most common symptom in persons with long QT syndrome. The fainting can occur spontaneously without warning, or in response to certain stressors such as emotional stress, exercise, excitement or loud noises. Often when people are about to faint, they may experience lightheadedness, heart palpitations, blurred vision or weakness.
• Sudden death - in some circumstances a fatal arrhytmia that is not quickly intervened on, may cause sudden death.

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