[A prospective study on the risk factors of Acinetobacter banmannii bacteremia infection in incubated patients with nosocomial pneumonia].

OBJECTIVE

To study the epidemiology of Acinetobacter baumannii infection in patients with ventilator-associated pneumonia (VAP).

METHODS

Prospective clinical study was carried out with 176 episodes of VAP with etiologic diagnosis being followed in two groups.

RESULTS

Twenty-six episodes were caused by Acinetobacter baumannii and one hundred-fifty episodes were caused by "other" organisms. Using logistic regression analysis, the risk of VAP due to Acinetobacter baumannii was found to be high in patients with head trauma [odds ratio (OR) = 4.20, 95% confidence interva (CI): 2.72 to 6.48], surgery (OR = 2.88, 95% CI: 1.78 to 4.66), acute respiratory dispnea syndrome (OR = 2.81, 95% CI: 1.19 to 6.64), and large-volume pulmonary aspiration (OR = 6.71, 95% CI: 3.91 to 11.50).

CONCLUSIONS

Acinetobacter baumannii pulmonary infection in incubated patients had an epidemiological pattern that different from "other" organisms. Patients with high risk identified in our study might mark the existence of cross-infection during airway manipulation.