Long Qt Syndrome - Causes, Symptoms and Treatment Methods
Long QT syndrome (LQTS) is a disorder of the heart's electrical system. People with this syndrome are susceptible to an abnormally rapid heart rhythm called "Torsade des pointes." Long QT syndrome is characterized by a prolongation of the QT interval on ECG and a propensity to ventricular tachyarrhythmias, which may lead to syncope, cardiac arrest, or sudden death. LQTS is usually inherited as an autosomal dominant trait. In the case of LQT1, which has been mapped to chromosome 11, mutations lead to serious structural defects in the person's cardiac potassium channels that do not allow proper transmission of the electrical impulses throughout the heart. ...
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