Prolonged QT Interval: Pathophysiology, Arrhythmia Risks, and Clinical Management
1. Introduction A prolonged QT interval is an electrocardiographic anomaly representing delayed ventricular repolarization, which leaves the heart vulnerable to dangerous, life-threatening arrhythmias such as Torsades de Pointes. This prolongation can be inherited as a congenital genetic syndrome or acquired through the use of specific common medications and the presence of severe electrolyte disturbances. Identifying … Read more