吸入性肺炎系指吸入食物、胃内容物及其他刺激性液体引起的化学性肺炎 ,在临床上常见。老年人当中发病率更高。有研究表明包括隐性误吸在内 ,正常人在睡眠中可能有 4 5 %发生误吸 ,在意识障碍患者中则高达 70 %。脑卒中患者常存在意识障碍 ,吞咽困难 ,饮食呛咳 ,易发生吸入性肺 Aspiration pneumonia refers to chemical pneumonia caused by inhalation of food, stomach contents and other irritating liquids, which is clinically common. The incidence of the elderly is higher. Studies have shown that including asymptomatic aspiration, normal people may have 45% asleep during sleep aspiration, and up to 70% of patients with impaired consciousness. Stroke patients often have disturbance of consciousness, difficulty swallowing, cough in diet, prone to inhalation of lung