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Long QT Syndrome
Related Terms: Commotio Cordis, Congenital Heart Defect
An inherited defect of the rhythm of the heart. The QT segment of the heart beat is slightly longer than normal, so the heart takes longer to recharge itself between beats. Symptoms may include sudden fainting spells, dizziness, and heart palpitations. Physical activity can make the symptoms occur, especially stop-and-go activity such as basketball. Sudden cardiac arrest can result from long QT syndrome.
