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本文根据肺功能与肺动脉平均压(PAP)有相关性的原理,采用相应的回归方程推算PAP的方法,探讨了煤矿工人和煤尘肺患者的PAP。结果表明:①井下健康的接尘工人与井上的健康工人其PAP无差异,PAP均值为2.31±0.36kPa(拟定PAP>3kPa为肺动脉高压);②煤工尘肺组的PAP非常显著地高于井下、井上的健康工人,且PAP异常(肺动脉高压)检出率随尘肺病期晋级而增高,但与工种无关;③煤工尘肺的PAP与其本身的肺气肿程度无显著性差异。本文提出了判断尘肺肺心病的肺功能标堆建议值:主要条件为①FEV_1<1.2(L);②FEV_1%≤55。其次条件为①MMEF<1(L/s);②MVV/PR%≤55;③V_(50)≤0.8(V_(50)/H≤0.56);④VC%<58。凡符合二项主要条件或一项主要条件和二项其次条件者,可诊断为煤工尘肺肺心病。
In this paper, based on the principle of pulmonary function and pulmonary artery mean pressure (PAP) correlation, using the corresponding regression equation to calculate the PAP method to explore the coal miners and patients with pneumoconiosis PAP. The results showed that: (1) There was no significant difference in PAP among health workers and health workers in wells, PAP mean was 2.31 ± 0.36 kPa (PAP> 3 kPa was considered as pulmonary hypertension); ② PAP in coal miners pneumoconiosis was significantly higher than that in underground , And upstairs health workers, and PAP abnormalities (pulmonary hypertension) detection rate increased with pneumoconiosis stage increased, but not with the type of work; ③ coal worker’s pneumoconiosis PAP and its own emphysema extent was no significant difference. In this paper, the proposed pulmonary function criteria for determining pneumoconiosis pneumoconiosis proposed value: the main conditions for ①FEV_1 <1.2 (L); ②FEV_1% ≤55. The second condition is ① MMEF <1 (L / s); ② MVV / PR% ≤55; ③V_ (50) ≤0.8 (V_ (50) /H≤0.56); Those who meet the two main conditions or one of the main conditions and two conditions, can be diagnosed as coal workers pneumoconiosis.