The clinical analysis of the pneumonia caused by acinetobacter baumannii

Objective To observe the clinical characteristics, risk factors, and sensitivity to antibiotics of nosocomial infections caused by acinetobacter baumannii. Methods Data were retrospectively collected from all isolated 37 strains acinetobacter. The clinical features, results of suptum culture and test of drug sensitivity were reviewed. Results The 37 acinetobacter baumannii strains mainly distributed in intensive care unit (ICU), most of them had the risk factors of receiving invasive treatment, mechanical ventilation, ect. The antibiotics imipenem, amikacin, pipercillin/tazobactam showed good efficacy for patients with acinetobacter infection, but other antibiotics had highly drug resistant rate. 5 were dead. The mortality of nosocomial infections caused by multi-drug resistant acinetobacter was 41.7%, which was much higher than the non-multi-drug resistant's (2 dead, the mortality was 8%). Conclusion Acinetobacter is one of the most important multi-drug resistant pathogen in nosocomial infections. Antimicrobial agents should be chosen according to antimicrobial susceptibility teat results. Patients who have the risk factors of nosocomial infections caused by acinetobacter should have suptum culture and antibiotic susceptibility studies as soon as possible. Key words: Acinetobacter baumannii;  Pneumonia;  Drug resistance, bacterial