老年社区获得性肺炎病原学分析

目的研究老年社区获得性肺炎患者的病原体分布。方法收集2005年6月-2008年5月在我院住院的128例老年CAP患者,留取呼吸道分泌物进行细菌培养,分离鉴定细菌并进行药物敏感性试验,同时检测患者急性期和恢复期肺炎支原体、肺炎衣原体、嗜肺军团菌血清抗体。结果 128例CAP患者60例（46.9%）病原学检查阳性,病原菌45株,其中主要为流感嗜血杆菌14株,肺炎克雷伯杆菌12株,肺炎链球菌10株。非典型病原阳性18例,主要为肺炎支原体13例,肺炎衣原体4例,3例为混合感染。流感嗜血杆菌对氨苄西林耐药率为14.3%;肺炎链球菌对青霉素不敏感率为30%,对阿齐霉素耐药率为60%;肺炎克雷伯菌产酶率16.7%,对含β-内酰胺酶抑制剂的复方抗生素制剂和亚胺培南敏感。结论老年患者肺炎以革兰阴性菌为优势菌株,对喹诺酮类和第3代头孢菌素具有不同程度的耐药性,对革兰阴性菌选用含有酶抑制剂的复方抗生素制剂或亚胺培南,非典型病原体的感染也占重要地位。

Characteristics of Etiology of Community Acquired Pneumonia in Elderly

Objective To investigate the pathogenic causes of community acquired pneumonia(CAP) in the elderly and to guide experience antibiotic therapy.Methods A prospective study was performed on 128 elders patients with CAP in Kong Jiang Hospital from June 2005 to May 2008.Sputum samples were collected for culture.Bacteria were isolated and identified using conventional methods and their Minimum Inhibitory Concentration(MIC) were determined.Antibodies of the paired serum samples to Mycoplasma pneumonia,Chlamydia pn...