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題 名 | Pulmonary Function Impairment in Peneumoconiotic Patients with Progressive Massive Fibrosis=進行性重度肺纖維化之肺功能不全 |
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作 者 | 楊傳音; 楊錫欽; | 書刊名 | 長庚醫學 |
卷 期 | 25:2 2002.02[民91.02] |
頁 次 | 頁72-80 |
分類號 | 415.465 |
關鍵詞 | 煤礦工塵肺症; 進行性重度肺纖維化; 肺功能; Coal workers' pneumoconiosis; Progressive massive fibrosis; Lung function; |
語 文 | 英文(English) |
中文摘要 | 背景:進行性重度肺纖維化是煤礦工塵肺症中較為嚴重的一型,但臨床經驗顯示即使同屬重度肺纖維化之礦工群,彼此間在肺功能損害的程度上仍然有很大的差異。過去甚少對此型患者再詳加分類,以觀察其群內呼吸功能低下之演變情況。然而事關我國勞工安全衛生制度及塵肺症殘廢標準之建立,實需多加以關心。本研究之目的乃在探討進行性重度肺纖維化時X光等級與肺功能損害之間的關係,並觀察吸菸與否在此等功能演變上所扮演的角色。 方法:本研究針對86位罹患進行性重度肺纖維化之煤礦工進行觀察分析。他們的胸部X光表現依國際勞工組織的分類法定為A,B,C三個等級。每位礦工均接受用力吐氣流速─容積圖形與肺瀰散量測定;其職業工作史、過去病史、呼吸症狀之有無與吸菸習慣等則以問卷的方式加以調查。 結果:與對照組勞工相比,罹患進行性重度肺纖維化之礦工,不論其X光等級為何,FVC與FEV[]均有異常低下的現象。FVC之異常且隨著X光等級而加重。但FVC在A等級之進行性重度肺纖維化只有輕度減少,隨X光片級數即快速下降。故就整體罹患進行性重度肺纖維化之礦工的通氣障礙類型而言,是以阻塞型為主。但隨著X光等級的升高,則拘限型的出現率會增加。有6-11%之A,B等級的患者其FVC及FEV[]仍為正常。肺瀰散功能在進行性重度肺纖維化時之損害亦相當明顯,有89.5%(77/86)之患者其DLCO有異常低下。又吸菸者其FEV[]/FVC及DLCO均比不吸菸者為更低。 結論:煤礦工塵肺症即使進行到重度肺纖維化,其肺功能損害的內涵仍非均勻一致。雖然一般而言,肺功能惡化的程度隨著X光等級的加重而增大,但在殘障鑑定上仍須針對個人作主要考量,並合併通氣功能與肺瀰散量之檢測結果,方能獲致正確的答案。又吸菸並非導致此種損害之唯一因素。 |
英文摘要 | Background: Progressive massive fibrosis (PMF) is the severe from of coal workers' pneumoconiosis (CWP). Clinical observations have suggested that the components of PMF are inhomogenous. There may be a significant diversity in the magnitude of pulmonary impairment of miners with PMF. This study is intended to investigate the relationship between radiological categories of PMF and pulmonary impairment. Methods: Eight-six coal workers with radiological evidence of PMF were enrolled. They were subdivided into 3 categories, i.e., A, B, and C according to the International Labour Office (ILO) classification. Maximal expiratory flowvolume curves and diffusing capacity were measured in each subject. Results: Our data reveal that forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV[]) were abnormally low in all categories. However, FVC was only mildly reduced in category, A, and then rapidly decreased with the progression of radiological category. The major pattern of impairment for miners with PMF was obstructive, but there was an increasing trend for restrivtive impairment for higher radiological categories. A normal spirogram was still observed in 6-11% of subjects in category and even B. For diffusing capacity (DLCO), there was also a progression of impairment with transition from category A to categories B and C. Smoking miners had even lower FEV[]/FVC and DLCO than did their non-smoking counterparts. Conclusions: Pulmonary impairment increased with increasing radiological category even in PMF. Assessment of lung function should be individualized and carried out with a combination of tests, i.e., spirometry and DLCO measurement. The loss of lung function cannot be accounted for by different smoking habits. |
本系統中英文摘要資訊取自各篇刊載內容。