QT间期离散度；
目的：探讨急性心肌梗塞时，QT间期离散度对其预后判定的意义。
Objective The significance of prognosis judging with the Dispersion Degree of QT Interval was been studied among the potients who suffered form the acute myocardial infarction.
目的探讨缺血预适应对急性心肌梗死Q_T间期离散度及室性心律失常的影响。
Objective To investigate effect of ischemic preconditioning on Q _ T dispersion(Q _ Td)and ventricular arrhythmia in acute myocardial infarction.
目的分析特发性长q t间期综合征患儿心电图QT间期离散度及其治疗后的改变。
Objective: To analyse EKG QT dispersion in pediatric patients with idiopathic long QT Syndrome and its change after treatment.
这就是QT间期离散度的概念，其定义为标准12导联同步心电图中最大QT间期和最小QT间期之差。
This inter-lead difference was called QT interval dispersion (QTD) and was defined as QT maximum minus QT minimum measured from 12 leads.
方法：测定56例急性心肌梗死患者心电图QT间期离散度与校正的QT间期离散度，将其分为室性心律失常组和无室性心律失常组，并进行比较。
Methods:QTd and corrected QT dispersion(QTcd)were measured on electrocardiogram in 56 patients with AMI. QTd and QTcd in the group of patients with VT were compared with that of patients without VT.
目的探讨急性心肌梗死测定最大QT间期的导联选择及分析心肌梗死急性期QT离散度与恶性以律失常的相关性。
Objective To study the lead selection of QT interval measurment in the patients with acute myocardial infarction and to examine the relation of QT dispersion with VT/VF.
目的探讨急性心肌梗死测定最大QT间期的导联选择及分析心肌梗死急性期QT离散度与恶性以律失常的相关性。
Objective To study the lead selection of QT interval measurment in the patients with acute myocardial infarction and to examine the relation of QT dispersion with VT/VF.
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