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1964年 Morris 等对心脏辩膜病的 P 波进行系统的分析时注意到 Pv_1的终末向量(Pv_1TF)的改变,65年、67年 Morris等又多次论述了 Pv_1终末电势对诊断左室肥大的意义。因此,Pv_1终末电势又称Morris 指数。近年来国内外由于心电图心向量图等检查技术的不断发展,对 Pv_1终末电势的研究陆续有不少报导,但对其临床意义看法很不一致,有的学者,认为 Pv_1TF 负值增大对冠心病诊断的敏感性不亚于马氏双倍二阶梯试验。有的认为,Pv_1TF 可作为冠心病早期诊断指标,并对预测以后发生心肌梗塞有一定价值,但多数认为 Pv_1TF 反映了左室
In 1964, Morris and other systematic analysis of the P wave of heart disease, he noted the change of Pv_1 terminal vector (Pv_1TF), 65, 67 years, Morris et al repeatedly discussed the Pv_1 terminal potential for the diagnosis of left ventricular The meaning of hypertrophy Therefore, Pv_1 terminal potential also known as the Morris index. In recent years, due to the continuous development of examination techniques such as electrocardiogram (ECG) vector charts at home and abroad, there have been many reports on the study of Pv_1 terminal potential. However, their opinions on clinical significance are very different. Some scholars think that the negative value of Pv_1TF increases, The diagnosis of heart disease as much as the sensitivity of Markov double ladder test. Some think, Pv_1TF can be used as an early diagnosis of coronary heart disease and predict myocardial infarction after a certain value, but most think Pv_1TF reflects the left ventricle