脑梗死是临床常见病及多发病 ,其致死率及致残率高。脑梗死后容易并发院内感染 ,其中近一半为肺部感染。并发肺部感染后将会影响病情的演变及预后。本文总结本院近年收治的 875例脑梗死患者 ,对其中 73例并发院内肺部感染患者的病情演变分析如下。1　资料与方法1.1　病例选择　 Cerebral infarction is a common clinical disease and frequently-occurring disease, its mortality and disability rate. Easy to complicated with nosocomial infection after cerebral infarction, of which nearly half of lung infections. Concurrent pulmonary infection will affect the evolution and prognosis of the disease. This article summarizes the hospital in recent years, 875 cases of patients with cerebral infarction, of which 73 patients with concurrent pulmonary infection in patients with evolution of the disease are as follows. 1 Materials and Methods 1.1 Case Selection