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QT间期离散度是指同一份心电图各导联最长与最短QT间期变异的量度,代表节段性心肌复极差异即复极的不一致性。通过66例急性心肌梗死(AMI)患者QT离散度的检测及病人临床演变观察,我们认为QT离散度与AMI近期预后的关系甚大,现将临床观察情况报告如下。 1 临床资料 66例患者均符合AMI的诊断标准,即:(1)典型的临床症状;(2)典型的心电图演变;(3)典型的心肌酶学曲线。除外室内传导阻滞,心房纤颤,应用乙胺碘呋酮、奎尼丁等影响QT间期的药物以及有电
QT interval dispersion refers to the same piece of ECG leads the longest and shortest QT interval variation measure, representing segmental myocardial repolarization difference that is repolarization inconsistency. Through the detection of QT dispersion in 66 patients with acute myocardial infarction (AMI) and the clinical evolution of the patient, we believe that the QT dispersion has a great relationship with the recent prognosis of AMI. The clinical observation is reported as follows. 1 Clinical data 66 patients were in line with the diagnostic criteria of AMI, namely: (1) the typical clinical symptoms; (2) typical ECG evolution; (3) typical myocardial enzymology curve. With the exception of indoor conduction block, atrial fibrillation, the application of amiodarone, quinidine and other drugs that affect the QT interval, and electricity