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Intensive Care Med. 1994;20(3):193-8.

Risk factors for infection by Pseudomonas aeruginosa in patients with ventilator-associated pneumonia.

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1
Intensive Care Department, Hospital de Sabadell, Barcelona, Spain.

Abstract

OBJECTIVE:

to investigate the epidemiology of infection by Pseudomonas aeruginosa in patients with ventilator-associated pneumonia (VAP).

DESIGN:

prospective clinical study.

SETTING:

a medical-surgical ICU in a university hospital.

PATIENTS:

we followed-up 568 mechanically ventilated patients and 83 episodes of VAP with etiologic diagnosis in 72 patients were retained for analysis.

RESULTS:

Ps. aeruginosa was isolated in 22 (26.5%) episodes in 18 patients. Of these episodes 7 were directly responsible for death. Using logistic regression analysis, the risk of VAP due to Ps. aeruginosa was increased in patients with chronic obstructive pulmonary disease (relative risk (RR) = 29.9, 95% confidence interval (CI) = 4.86-184.53), a mechanical ventilation period longer than 8 days (RR = 8.1, 95% CI = 1.01-65.40) and prior use of antibiotics (RR = 5.5, 95% CI = 0.88-35.01).

CONCLUSIONS:

patients with VAP and these factors have a greater risk of infection by Ps. aeruginosa and empirical therapy for these episodes should include anti-pseudomonal activity until etiologic diagnosis is established.

PMID:
8014285
[Indexed for MEDLINE]
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