高血压左室肥厚的QT离散度及左室Tei指数的关系探讨

心脏是最常见的高血压损伤靶器官,首先引起左心室肥厚,然后导致心功能下降,并可导致心律失常。高血压患者中约有1/3会出现左室肥厚（LVH）,可致心血管病事件发病率增加,病死率升高,是猝死、冠心病和充血性心力衰竭的独立的、主要的危险因素和预后信号。QT间期离散度（QTd）是反映心室肌复极的不均匀性和电不稳定性预测恶性室性心...

Association of QT Dispersion and Tei Index in Hypertensive Patients with Left Ventricular Hypertrophy

Hypertension is a disease characterized by end-organ complications,leading to left ventricular hypertrophy（LVH） in about one third of hypertensive patients.LVH increases the risk of cardiovascular morbidity and mortality,and is an independent risk factor for sudden death,coronary heart disease,congestive heart failure.QT dispersion（QTd） is a marker of inhomogenenous ventricular repolarization and electrical instability,and therefore has the potential to predict ventricular arrhythmias and sudden death.Tei index measured with Doppler echocardiography reflects left ventricular systolic and diastolic function.The index is simple,noninvasive,easy to estimate and reproducible.The aim of this study was to investigate the correlation between QT dispersion and Tei Index in hypertensive patients.