老年患者下呼吸道医院感染死亡病例病原菌分析  

Nosocomial Infection Pathogens from Lower Respiratory Tract in Senile Deceased Patients

作　　者：甘丹[1] 陈永[1] 刘茜[1] 程莉[1] 

机构地区：[1]重庆市第三人民医院老年科,重庆400014

出　　处：《中华医院感染学杂志》2009年第15期2054-2056,共3页Chinese Journal of Nosocomiology

摘　　要：目的了解老年患者下呼吸道医院感染死亡病例病原菌分布及耐药特点。方法收集近5年来医院老年患者院内下呼吸道感染死亡病例病原菌,进行菌株鉴定和药敏试验,按NCCLS标准判断。结果分离出112株病原菌中,革兰阴性菌占79.5%,革兰阳性菌占20.5%,主要病原菌为铜绿假单胞菌19.6%、凝固酶阴性葡萄球菌(CNS)18.7%、鲁氏不动杆菌11.6%;常见病原菌耐药率明显增高。结论老年患者下呼吸道医院感染死亡病例病原菌仍以革兰阴性菌为主,但CNS明显上升,耐甲氧西林凝固酶阴性葡萄球菌检出率高达100.0%。OBJECTIVE To investigate the distribution and drug resistance of nosocomial infection pathogens from lower respiratory tract in senile patients. METHODS The sputum and lower respiratory tract secretion in the senile patients with lower respiratory tract infection were collected nearly five years, and identified. The drug sensitivity test, the results of examination were judged according to NCCLS standard. RESULTS The Gram-negative bacilli accounted for 79.5 %. The Gram-positive bacteria accounted for 20.5 %. The predominant pathogens were Pseudornonas aeruginosa （19. 6%）, coagulase-negative Staphylococci （CNS） （18. 7%）, and acinetobacter lwoffi （11.6M）. The resistant bacteria were markedly increasing. CONCLUSIONS The Gram-negative bacilli are the major pathogens in the senile deceased patients. The incidence of CNS infection is markedly increasing. The isolating rate of meticillin-resistant CNS is 100.0%.

关 键 词：老年患者 下呼吸道感染 病原菌 耐药性 

分 类 号：R378[医药卫生—病原生物学]