QT离散度与高血压左室肥厚的相关性研究

目的 探讨QT离散度与高血压左室肥厚的关系及其对临床的指导意义.方法 根据12导联常规心电图和超声心动图监测结果将90例原发性高血压(EH)患者分为伴左室肥厚者(LVH组)50例和不伴左室肥厚者(非LVH组)40例,比较两组患者的QT离散度(QTd)和左室重量指数(LVMI).结果 两组病人QT离散度LVH组为(65....

Study on the Relationship between QT Dispersion and Left Ventricular Hypertrophy in Hypertension

Objective To evaluate the relationship between QT dispersion and left ventricular hypertrophy in hypertension and its clinical significance.Methods According to the conventional 12-lead ECG and echocardiography results,90 patients with essential hypertension（EH）were divided into two groups,50 patients with left ventricular hypertrophy（LVH group）and 40 patients without left ventricular hypertrophy（non-LVH group）,QT dispersion（QTd）and left ventricular mass index（LVMI）were compared in the two groups.Results QT dispersion in LVH group was（65.14±7.47）ms,and in NLVH group was（37.86±6.98）ms,the difference was statistically significant（P〈0.05）.QTd was significantly larger in the patients with hypertension and left ventricular hypertrophy.Left ventricular mass and left ventricular muscle mass index of LVH group was significantly higher than that of NLVH group（P〈0.05）.Conclusion QTd is an index of ventricular repolarization heterogeneity,is a noninvasive,simple,valuable indicator to predict hypertension and left ventricular hypertrophy,and may be provided treatment and prevention measures for the occurrence of severe arrhythmia.