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Risk Factors for Mortality in Patients with Acinetobacter baumannii Bacteremia

Authors
Park, Se YoonChoo, Jin WooKwon, Soon HaYu, Shi NaeLee, Eun JungKim, Tae HyongChoo, Eun JuJeon, Min Huok
Issue Date
Sep-2013
Publisher
Korean Society of Infectious Diseases; Korean Society for Antimicrobial Therapy
Keywords
Acinetobacter baumannii; Bacteremia; Mortality
Citation
Infection and Chemotherapy, v.45, no.3, pp 325 - 330
Pages
6
Journal Title
Infection and Chemotherapy
Volume
45
Number
3
Start Page
325
End Page
330
URI
https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/13418
DOI
10.3947/ic.2013.45.3.325
ISSN
2093-2340
2092-6448
Abstract
Background: Acinetobacter baumannii, an opportunistic nosocomial pathogen that can cause significant morbidity and mortality, has emerged as a worldwide problem. The aim of this study was to evaluate the risk factors for mortality in patients with A. baumannii bacteremia. Materials and Methods: We retrospectively evaluated 118 patients who had A. baumannii bacteremia between July 2003 and December 2011. The aim of this study was to identify the 30-day mortality in patients with A. baumannii bacteremia and relevant risk factors. Results: The bacteremia-related 30-day mortality rate was 34.1%. Univariate analysis revealed that the risk factors for mortality included malignancy, longer hospital stay before bacteremia, intensive care unit (ICU) stay at the time of bacteremia, mechanical ventilation, use of a central venous catheter, unknown origin of bacteremia, bacteremia due to pneumonia, antimicrobial resistance to carbapenems, and elevated Acute Physiology and Chronic Health Evaluation II and Pitt bacteremia scores. Multivariate logistic regression analysis revealed that resistance to carbapenems (odds ratio [OR]: 4.01, 95% confidence interval [CI]: 1.51 to 0.68, P = 0.005), need for mechanical ventilation (OR: 3.97, 95% CI: 1.41 to 11.13, P = 0.005), and presence of malignancy (OR: 4.40, 95% CI: 1.60 to 12.08, P = 0.004) were significantly related to mortality risk. Conclusions: Risk factors such as resistance to carbapenems, mechanical ventilation, and presence of malignancy were found to be associated with high mortality rates in the patients with A. baumannii bacteremia.
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