The maternal heart significantly adapts to the circulatory needs of pregnancy, but the effect of pregnancy on ventricular repolarization is poorly understood. The aim of this study was to quantify ...

The QT interval is the time from the beginning of the QRS complex (ventricular depolarization) to the end of the T wave (ventricular repolarization). The normal QT interval is controversial and ...

The QT interval on an electrocardiogram signifies the time required for the heart to repolarize after depolarization. It has long been appreciated that a long QT interval predisposes patients to ...

Short QT syndrome is an inheritable primary electrical disease of the heart that was discovered in 1999. The disorder is characterized by an abnormally short QT interval (<300 ms) and a propensity to ...

February 3, 2006-- A recent analysis of the prospective, population-based Rotterdam Study found that prolongation of the heart-rate corrected QT (QTc) interval increased the risk of sudden cardiac ...