矽肺是由于长期吸入游离二氧化硅所引起的肺部疾病,在肺部及淋巴结形成分散或融合的纤维结节。矽肺患者免疫功能低下,易患呼吸道感染,有些患者长期或反复住院,极易在住院期间发生医院获得性肺炎(HAP)。现将我科2004年1月~2008年6月期间住院的28例矽肺患者并发医院获得性肺炎(HA Silicosis is a lung disease caused by long-term inhalation of free silica and forms scattered or fused fibrous nodules in the lungs and lymph nodes. Patients with silicosis are immunocompromised and susceptible to respiratory infections. Some patients have long-term or repeated hospitalizations and are prone to hospital-acquired pneumonia (HAP) during hospitalization. Now in our department from January 2004 to June 2008 hospitalized 28 cases of silicosis patients with hospital-acquired pneumonia (HA