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ＱＴ度散度 (ＱＴｄｉｓｐｅｒｓｉｏｉｎ ,ＱＴｄ)是心电图导联间ＱＴ变异的量度 ,反映心肌复极区域性差异 ,ＱＴｄ增加被认为与恶性室性心律失常和猝死密切相关。左心室肥厚 (ＬＶＨ )是产生各种心血管病发生率 (或并发症 )和死亡率以及总的死亡率重要的独立的危险因素[1] ,
QT dispersion (QTd) is a measure of QT variation between ECG leads, reflecting regional differences in myocardial repolarization. Increased QTd is thought to be closely associated with malignant ventricular arrhythmias and sudden death. Left ventricular hypertrophy (LVH) is a significant independent risk factor for various cardio-vascular morbidity (or complication) and mortality as well as overall mortality [1],