Evaluation of methods of measurement and estimation of left ventricular function after acute myocardial infarction.
Evaluation of methods of measurement and estimation of left ventricular function after acute myocardial infarction.
复制标题
急性心肌梗死后左心室功能测量和评估方法的评价。
DOI：
10.1016/0002-9149(85)91128-2
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Wagner,GS
中科院分区：
文献类型：
--
作者：
Jones,MG;Ramo,BW;Raff,GL;Hinohara,T;Wagner,GS
使用多门控心血池成像和单平面心室造影从心导管术，2个独立的措施，左心室（LV）射血分数（EF）确定在每21例患者。患者在首次急性心肌梗死后2 - 6周就诊，心电图无传导异常和左或右心室肥大的证据。检查两种LVEF测量方法之间的差异，然后与使用完整的54标准/32点Selvester QRS评分系统从标准12导联心电图估计的心肌坏死程度进行比较。回归分析得出2个LVEF测量值之间总体相关性的r值为0.81（SEE = 8.05）。与QRS评分相比，放射性核素LVEF、导管LVEF和这2次测定的平均值之间的相关系数分别为-0.70、-0.66和-0.72。对于预测LVEF大于40%，QRS评分4或更低达到100%特异性，8或更低达到100%敏感性。因此，Selvester QRS评分系统可能在识别LVEF明显受损或无明显受损的患者方面具有价值。这种危险分层可能是重要的，在达到最佳的梗死后治疗决策。
Using multiple gated cardiac blood pool imaging and single-plane ventriculography from cardiac catheterization, 2 independent measures of left ventricular (LV) ejection fraction (EF) were determined in each of 21 patients. Patients were seen 2 to 6 weeks after their first acute myocardial infarction and were free of electrocardiographic evidence of conduction abnormalities and left or right ventricular hypertrophy. Differences between the 2 measures of LVEF were examined and then compared with the extent of myocardial necrosis estimated from the standard 12-lead electrocardiogram using the complete 54-criteria/32-point Selvester QRS scoring system. Regression analysis yielded an r value of 0.81 (SEE = 8.05) for the overall relation between the 2 measures of LVEF. Correlation coefficients of −0.70, −0.66 and −0.72 were obtained for the relations of radionuclide LVEF, catheterization LVEF and the mean of these 2 determinations, respectively, compared with QRS score. A QRS score 4 or less achieved 100% specificity and that of 8 or less 100% sensitivity for predicting an LVEF greater than 40%. Thus, the Selvester QRS scoring system may be of value in identifying patients with or without markedly impaired LVEF. This risk stratification may be important in reaching optimal postinfarction therapeutic decisions.