Relation of left ventricular mass and QT dispersion in patients with essential hypertension]

To study the relation between the rate-corrected QT interval dispersion(QTcd) and left ventricular mass, the blood pressure(BP), left ventricular mass index(LVMI), and QTcd were measured in 79 essential hypertensive patients. The results were that QTcd and QTcd% in hypertension with left ventricular hypertrophy(LVH) group were significantly higher than that in hypertension without LVH group; The higher the LVMI, the higher the QTcd and QTcd%(r = 0.7720, r = 0.6798, respectively), which were not associated with BP. The results suggest that LVH, but not hypertension, leads to an increase in QTcd.