QTc dispersion as a prognostic factor in intracerebral hemorrhage

QTc Interval and Neurological Outcomes in Aneurysmal Subarachnoid Hemorrhage

“…QT interval abnormality is a marker of cardiac depolarization and repolarization abnormality [4]. The autonomic nervous system is an important modulator of ventricular repolarization, and autonomic dysfunction develops in patients with acute brain injury [4].…”

QT dispersion in patients with pulmonary embolism

“…Many large studies have reported that QTd is a signifi cant risk factor in population without cardiac disease [7,8]. However, a number of investigators reported that QTd was not prognostic even in patients with heart disease and have pointed out the diffi culties of measuring where the T wave ends which is the primary reason for the measurement error in measuring QT dispersion [14][15][16].…”

“…Several large prospective studies have reported QTd as a signifi cant prognostic factor in population with and without cardiac diseases [6][7][8]. Previous studies showed that chronic pulmonary hypertension is characterized with prolonged QT interval and increased QTd [9][10][11].…”

QT dispersion monitoring as a coronary disturbance prediction tool

“…Finally, a unique value of QT dispersion is computed as the difference between the maximum and minimum QT interval duration [1,7]. The authors of this paper propose to study the QT spatial dispersion with time in order to evaluate its behavior.…”

“…The QT interval represents the ventricular activity in the electrocardiogram (ECG) and it has been studied since the beginning of the last century because of its importance [2,7]. Recently, the QT interval spatial dispersion has emerged as an important indicator associated to ventricular disturbances in cardiac patients; elevated QT dispersion values has been observed in coronary patients with post infarct complications [1,3].…”