Evaluation of a QRS scoring system for estimating myocardial infarct size. IV. Correlation with quantitative anatomic findings for posterolateral infarcts.
Evaluation of a QRS scoring system for estimating myocardial infarct size. IV. Correlation with quantitative anatomic findings for posterolateral infarcts.
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DOI：
10.1016/s0002-9149(83)80069-1
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发表时间：
1983-02
期刊：
影响因子：
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通讯作者：
R. Ward;R. White;R. Ideker;N. Hindman;D. Alonso;S. Bishop;C. Bloor;J. Fallon;G. Gottlieb;D. Hackel
中科院分区：
文献类型：
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作者：
R. Ward;R. White;R. Ideker;N. Hindman;D. Alonso;S. Bishop;C. Bloor;J. Fallon;G. Gottlieb;D. Hackel
本研究通过定量尸检相关性评价了先前开发的基于心电图QRS波群估计心肌梗死面积的评分系统。该系统进行了测试，使用心电图从病人的梗塞，尸检显示，占主导地位的下三分之一的左心室。本研究仅限于心电图未提示左或右心室肥大、左或右束分支阻滞或左前或后分支阻滞的患者。来自6个医学中心的31例患者符合这些标准，在31例患者中的28例（90%）的心电图中，aVF导联表现出至少30 ms的Q波。QRS总分与左心室梗死百分比之间的相关系数为0.74。在心电图中无混杂因素且有单一梗死的患者中，心电图提供了左心室下三分之一梗死的标记，定量QRS评分系统提供了梗死面积的估计。
This study evaluated by quantitative autopsy correlation a previously developed scoring system for estimating the size of myocardial infarcts based on the QRS complex of the electrocardiogram. This system was tested using electrocardiograms from patients with infarcts shown by autopsy to predominate in the inferior third of the left ventricle. The study was limited to patients whose electrocardiogram did not indicate left or right ventricular hypertrophy, left or right bundle branch block, or left anterior or posterior fascicular block. Thirty-one patients from 6 medical centers met these criteria.In the electrocardiogram of 28 of the 31 patients (90%), lead aVF exhibited a Q wave of at least 30 ms. The correlation coefficient between the total QRS score and the percent infarction of the left ventricle was 0.74. In patients without confounding factors in the electrocardiogram and with single infarcts, the electrocardiogram provides a marker for infarcts in the inferior third of the left ventricle and a quantitative QRS scoring system provides an estimate of infarct size.