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肺心病的心电图诊断,因所采取的方法、研究对象和诊断标准不同,阳性率差别较大(33.3％—81.0％)。因此,为了提高肺心病之诊断水平,特别是早期诊断肺心病,许多学者做了大量工作。如采用附加胸骨导联,曾一度被推崇介绍,但其价值看法不一;采用卧立位试验以求提高心电图对早期肺心病之诊断也已有报道,测量IPI—V_1(V_1导联P波起始指数)被认为是衡量右心房异常的敏感指标等。76年仞,我地区肺心病防治科研协作组对76例肺心病例作了常规导联,附加胸骨导联检查,并对其中17例肺心病例作了卧立位测验,另选14例肺气肿病例,20例正常人作对照,具体情况如下:
Coronary heart disease diagnosis of ECG, due to the methods taken, subjects and diagnostic criteria are different, the positive rate difference (33.3% -81.0%). Therefore, in order to improve the diagnosis of pulmonary heart disease, especially early diagnosis of pulmonary heart disease, many scholars have done a lot of work. Such as the use of additional sternal lead, once highly respected introduction, but the value of different opinions; the use of lying position test in order to improve the diagnosis of early pulmonary heart disease ECG has also been reported to measure IPI-V_1 (V_1 lead P wave Initial index) is considered as a sensitive measure of right atrial abnormalities and so on. 76 years, my area of pulmonary heart disease prevention and treatment research collaboration group of 76 cases of pulmonary heart disease made conventional lead, attached to the sternum lead examination, and of which 17 cases of pulmonary heart disease were lying position test, another 14 cases of lung Emphysema cases, 20 normal controls, the specific circumstances are as follows: