通过心血管造影术评估梗死的极坐标心电图标准。

Polarcardiographic criteria for infarction evaluated by angiocardiography.

作者信息

Osborne J A, Dower G E

出版信息

J Electrocardiol. 1977 Jul;10(3):237-44. doi: 10.1016/s0022-0736(77)80065-4.

Abstract

Out of a series of 1000 consecutive patients studied by angiocardiography, two groups were selected on the basis of the probability of having suffered myocardial infarction: an infarction group of 324 cases, and a non-infarction group of 112 cases. Members of the infarction group had complete occlusion of at least one major coronary artery; members of the non-infarction group had less than 50% occlusion in all coronary arteries, normal hemodynamics, and negative histories of infarction. The diagnostic performances of the independently-read 12-lead electrocardiograms (ECGs) and the polarcardiograms (PCGs) were evaluated in terms of sensitivity, specificity, validity and risk ratio. The performance of the ECG was significantly lower than the PCG. Corresponding figures were 56%, 99%, 67%, and 1.67 for the ECG, and 75%, 91%, 80%, and 2.23 for the PCG. There is a 99.9% probability that the PCG can detect at least 21% more cases of infarction than the ECG can.

摘要

在通过心血管造影术研究的1000例连续患者中，根据发生心肌梗死的可能性选择了两组：梗死组324例，非梗死组112例。梗死组成员至少有一条主要冠状动脉完全闭塞；非梗死组成员所有冠状动脉闭塞小于50%，血流动力学正常，且无梗死病史。从敏感性、特异性、有效性和风险比方面评估独立解读的12导联心电图（ECG）和极坐标心电图（PCG）的诊断性能。ECG的性能显著低于PCG。ECG的相应数据为56%、99%、67%和1.67，PCG的相应数据为75%、91%、80%和2.23。PCG检测到的梗死病例比ECG至少多21%的概率为99.9%。