Lifshits A M, Mebel' N M
Kardiologiia. 1978 Jun;18(6):100-7.
A study was made of 326 cases with scars of the myocardium more than 5 mm in size and of 697 cases without any scars. The ECG changes were classified according to the Minnesota Code. Among cased in which scars were found on autopsy, the ECG had made it possible to establish (by WHO criteria) myocardial infarction in 34%, other chronic forms of ischemic heart disease in 35%, miscellaneous changes in 26%, and showed no changes in 5% of cases. The sensitivity of the electrocardiographic method in revealing myocardial scars proved to be low: the frequency of false-negative results according to any of the signs exceeded 30% in transmural scars and 60% in non-transmural scars. The most valuable diagnostic information was yielded by Q and QS waves (Codes I-1 and I-2), artial fibrillation, changes in T waves (Code V-2) and total block of the left branch of the bundle of His (in diminishing succession).
对326例心肌瘢痕大小超过5毫米的病例以及697例无任何瘢痕的病例进行了研究。心电图变化根据明尼苏达编码进行分类。在尸检发现有瘢痕的病例中，心电图能够（根据世界卫生组织标准）确诊心肌梗死的占34%，其他慢性缺血性心脏病形式的占35%，有其他变化的占26%，5%的病例无变化。心电图方法揭示心肌瘢痕的敏感性较低：根据任何一项指标，透壁瘢痕假阴性结果的发生率超过30%，非透壁瘢痕超过60%。最有价值的诊断信息由Q波和QS波（编码I - 1和I - 2）、心房颤动、T波变化（编码V - 2）以及希氏束左束支完全阻滞（依次递减）提供。
