急性心肌梗死患者Q-T离散度分析

Q-T duration dispersion in ptients with acute myocardial infarction

目的分析急性心肌梗死(AMI)患者Q-T离散度(Q-Td)的动态变化,及其与恶性室性心律失常的关系。方法测量50例急性心肌梗死病人住院期间Q-Td及校正Q-T离散度(Q-Tcd),分析其与恶性室性心律失常的关系。结果50例AMI患者住院期间Q-Td动态变化揭示了Q-Td与恶性室性心律失常的密切关系,38例急性心肌梗死Q-Td及Q-Tcd入院时较出院有非常明显延长(P<0.05)。结论Q-Td可作为预测急性心肌梗死发生恶性室性心律失常的一项敏感指标。

Objective To study Q-T duration dispersion （Q--Td）and its relation with malignant ventricular arrhythmia. Methods 50 cases of AMI were entered this research. All patient＇s Q-Td and Q-Tcd （corrected Q-T duration dispersion）were measured and compared respectively on the admission and discharged, as we/1 as the relative analysis between Q-Td and malignant ventrieular were carried on. Results the dynamic change of Q-Td showed there are significant relation between Q-Td and malignant arrhythmia. The Q-Td and Q-Ted were significantly pro｜onged at admission than that at being discharged （P〈O.OS）.Conclusion Q-Td could be taken as a sensitive predictive factor to reflect the occurrence of the malignant ventrieular and cardiac dysfunction, it is also a valuable and non-invasive methods to evaluating the prognosis of the acute myocardial infarction.