煤矿工人慢性支气管炎的病理分析

Autopsies of Coal Workers with Chronic Bronchitis

目的了解煤矿工人慢性支气管炎的病变特点。方法对１８０例煤矿工人的尸检材料进行病理分析。结果在１８０例煤矿工人中，患慢性支气管炎的１５５例，检出率为８６．１％，与是否患煤工尘肺无关。其好发部位主要在小支气管和细支气管。煤矿工人慢性支气管炎最显著的特点是在各级支气管管壁有粉尘沉积和尘细胞浸润，支气管壁周围可有尘性纤维化，特别是在呼吸性细支气管处尘性病变最重。结论煤矿工人慢性支气管炎主要表现为尘性和尘性与炎性混合性（占８０．０％）。

Objective To study the pathological features of chronic bronchitis in coal miners. Methods Pathological specimens collected in postmortem examinations for 180 deceased coal miners were analyzed. ResultsAmong the 180 deceased coal miners, there were 155 cases of chronic bronchitis, with a prevalence rate of 861%, mainly affecting bronchia and bronchiole. No correlation between chronic bronchitis and coal worker pneumoconiosis was found. The most apparent features of chronic bronchitis in coal miners include dust deposition and dust cell infiltration on the walls of bronchi at all levels, and dust fibrosis around the bronchial walls, with the most severe pathological change of dust deposition on the respiratory bronchiole. Conclusion Most of the coal miners with chronic bronchitis (accounting for 80.0% of the total) manifested dust deposition and mixture of dust deposition and inflammation. Simple inflammatory bronchitis was rare.