Brugada syndrome is a rare but potentially life-threatening heart rhythm condition that is sometimes inherited. It is caused by a faulty gene that affects the way electrical signals pass through the heart, leading to an increased risk of irregular heart rhythms beginning in the lower chambers of the heart (ventricles) . Many people with Brugada syndrome do not have any noticeable symptoms, but some may experience dizziness, fainting, gasping and labored breathing, irregular heartbeats or palpitations, extremely fast and chaotic heartbeat, seizures, or chest pain. A major sign of Brugada syndrome is an irregular result on an electrocardiogram (ECG), a test that measures the electrical activity of the heart. Treatment of Brugada syndrome includes preventive measures such as reducing fever and avoiding medications that might trigger the arrhythmia. Some people with Brugada syndrome need a medical device called an implantable cardioverter-defibrillator (ICD) .