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目的:研究讨论医院重症监护病房(ICU)的感染原因以及预防方式。方法:通过回顾性的研究方式,分析290例ICU患者出院后的医院感染病例。结果:在290例ICU住院患者当中有70例出现医院感染，感染几率达到百分之24.14，作为医院感染比较高危的人群,老年重症患者常见的感染部位为呼吸道、胃肠道、泌尿道等等；感染原因包括侵入性操作的增多，患者自身机体的抵抗能力下降、抗菌药物使用不合理、医护人员的医院感染意识没有达到标准等等。结论:重症监护患者发生医院感染的几率比较高，重视老年重症患者的感染几率,加强患者的关注度，注重对患者的呼吸道、胃肠道以及泌尿道的护理，有限使用抗菌药物，减少侵入性操作，使重症监护病房的医院感染几率下降。
Objective: To study and discuss the causes of infection in ICU and its preventive measures. Methods: By retrospective study, 290 cases of hospital infection after ICU were analyzed. Results: Among 290 ICU inpatients, 70 cases were hospital-acquired with infection rate of 24.14%. As a group with high risk of nosocomial infection, common infection sites in elderly patients with severe diseases were respiratory tract, gastrointestinal tract, urinary tract, etc. The causes of infection include the increase of invasive operation, the decrease of patient's own body's resistance, the unreasonable use of antibacterial drugs, the non-compliance of hospital infection among medical staff and so on. Conclusions: The incidence of nosocomial infection in intensive care patients is relatively high. The emphasis is on the risk of nosocomial infections in elderly patients with severe nocturnal infections. The patients 'attention, emphasis on patients' respiratory, gastrointestinal and urinary tract care, limited use of antimicrobial agents, and reduction of invasiveness Operation, so that the ICU hospital infection risk decreased.