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临床实践证明,采用卧立试验导致突然的、一过性的右心负荷加重,引起心电图的相应改变,以提高心电图对早期肺原性心脏病诊断具有一定价值。粉尘作业工人长期吸入被粉尘污染的空气,除可引起肺部纤维化疾病外,而就其对呼吸道具有的一般性刺激作用亦可能为罹患慢性气管炎和支气管炎的原因之一。有人提出当有肺部纤维化疾病且有支气管炎时,则肺心病颇为常见。我们试用卧立试验心电图探索粉尘作业工人早期肺原性心脏病的发病情况,以便早期防治。方法观察对象均为具有二十年以上专业工龄的男性工人;分组见表1。
Clinical practice has shown that the use of lying test led to a sudden, transient right heart load increased, causing the corresponding changes in ECG to improve the ECG on the diagnosis of early pulmonary heart disease has a certain value. Long-term inhalation of dust-laden air by dust-intensive workers may cause lung fibrosis, and its general respiratory irritation may also be one of the causes of chronic bronchitis and bronchitis. It was suggested that when there is pulmonary fibrosis and bronchitis, pulmonary heart disease is quite common. We try lying test ECG to explore the incidence of early pulmonary heart disease in dust workers for early prevention and treatment. Methods Subjects were all male workers with more than 20 years of professional seniority;