Even when the correct QTc value has been obtained, its diagnostic significance can be misinterpreted, particularly when the value triggers the infamous designation of “borderline QT prolongation” (ie, ...

In controls, the QT interval decreased by 21 ± 19 ms; however, since the QT interval decreased less than the RR interval, the QT interval corrected for heart rate (QTc interval) actually ...

Prolonged QTc interval, pericardial effusion and diastolic dysfunction are associated with higher mortality.