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选择移居2500m高原63名矽肺矿工，连续20年摄后前位胸片，按居住年限分组，自身对照，观察矽肺与肺动脉高压的演变过程．分析矽肺X线心血管4项指标的改变。结果表明：动态观察矽肺X线及心血管各指标的改变，对预测高原人体矽肺的发生，评定矽肺的发展程度，观察疗效和对矽肺愈后判定有着非常重要的临床应用价值。
Choose to migrate to 2500m plateau 63 silicosis miners, for 20 consecutive years after the first anterior chest radiographs, according to the length of residence grouped, self-control, observe the evolution of silicosis and pulmonary hypertension. Analysis of four indicators of silicosis X-ray changes. The results showed that the dynamic observation of changes of silicosis X-ray and cardiovascular indexes is of great value in predicting the occurrence of silicosis in high altitude, assessing the development of silicosis, observing the effect and judging the prognosis of silicosis.