支气管肺感染是老年人常见的感染性疾病 ,尤其是重症支气管肺感染对老年人威胁较大 ,有时往往成为直接死因。老年人由于呼吸系统结构和功能的变化 ,加之患有多种基础疾病 ,致使支气管肺感染的发病率高、并发症多 ,预后差 ,死亡率高。本文回顾性分析近年收治的重症支气管肺感染 Bronchopulmonary infection is a common infectious disease in the elderly. In particular, severe bronchopulmonary infection is a threat to the elderly and is often the direct cause of death. The elderly due to changes in respiratory system structure and function, combined with a variety of underlying diseases, resulting in a high incidence of bronchial lung infection, complications, poor prognosis and high mortality. This article retrospectively analyzed in recent years admitted to severe bronchial lung infection