院内获得性肺感染是常见的医院感染之一,在医院各科院内感染中发病率及病死率为最高，致病菌大多为革兰阴性杆菌[1]。现将收集58％例煤工尘肺院内革兰阴性杆菌肺感染分析如下。1临床资料1．1一般资料58例均为男性，年龄55～82岁。I期煤工尘肺9例（15．5％），I期37例（63．8％ Nosocomial-acquired pulmonary infection is one of the most common hospital infections. The highest incidence and mortality are found among all hospital-acquired infections in hospitals. Most of the pathogens are Gram-negative bacilli [1]. We will now collect 58% cases of pneumoconiosis pneumoconiosis hospital pneumoconiosis pulmonary infection in hospital as follows. 1 Clinical data 1.1 General Information 58 cases were male, aged 55 to 82 years. I coal miners pneumoconiosis in 9 cases (15.5%), I 37 cases (63.8%