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61例典型心绞痛病人中,常规心电图诊断标准异常的敏感度47.5%,与国外有关报道相似;结合分析标准第一导联中 R/T 比值,T-截距和 R 波与 T 波振幅之差值等三项指标的异常,使敏感度提高到70.5%(P<0.01)。这三项指标测量简便、特异度高,有可能成为冠心病心电图诊断学中的实用指标。但本文仅系初步报告,病例数目较少,结论有待于进一步的研究和证实。讨论了该三项指标异常的产生机理,并提出了一个关于 T-截距的简单模型。
61 cases of typical angina patients, the sensitivity of conventional ECG diagnostic criteria for abnormalities was 47.5%, similar to foreign reports; combined with the first lead in the analysis of R / T ratio, T-intercept and R wave and T wave amplitude difference Value and other three indicators of abnormalities, the sensitivity increased to 70.5% (P <0.01). These three indicators of measurement is simple, high specificity, may become a practical indicator of ECG diagnosis of coronary heart disease. However, this article is only a preliminary report, the number of cases less, the conclusions to be further studied and confirmed. Discussed the mechanism of the abnormality of the three indicators and proposed a simple model about T-intercept.