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Incidence and risk factors for ventilator-associated pneumonia in 4 multidisciplinary intensive care units in Athens,
Eleni Apostolopoulou1, Petros Bakakos, Theophanis Katostaras
1Nursing Department, Athens University, 36 Figalias Street, 145 64, Athens, Greece. ektelestiko@pasok.gr
Insights
Ventilator-associated pneumonia (VAP) affects 32% of ICU patients requiring mechanical ventilation. Key risk factors include bronchoscopy, tube thoracostomy, tracheostomy, high APACHE II scores, and enteral feeding, guiding preventative care strategies.
Area of Science:
- Critical Care Medicine
- Infectious Diseases
- Pulmonary Medicine
Background:
- Ventilator-associated pneumonia (VAP) is a prevalent nosocomial infection in intensive care units (ICUs).
- It represents a significant cause of morbidity and mortality among mechanically ventilated patients.
Purpose of the Study:
- To prospectively identify factors associated with VAP development.
- To determine the incidence of VAP in a cohort of ICU patients.
Main Methods:
- A 6-month prospective study involving 175 patients requiring mechanical ventilation for over 24 hours.
- Statistical analysis, including stepwise logistic regression, was used to identify independent risk factors.
Main Results:
- VAP occurred in 32% of patients (56 out of 175).
- Independent risk factors identified were bronchoscopy, tube thoracostomy, tracheostomy, an APACHE II score of 18 or higher, and enteral feeding.
- Patients who developed VAP had a significantly longer duration of mechanical ventilation.
Conclusions:
- VAP is a common complication in the ICU setting.
- Specific interventions and patient characteristics are significantly associated with VAP incidence.
- Awareness of these risk factors can aid clinicians in identifying high-risk patients and implementing targeted VAP prevention strategies.
Introduction:
Ventilator-associated pneumonia (VAP) is the most common nosocomial infection among intensive care unit (ICU) patients.
Objective:
Prospectively identify the factors associated with development of VAP and examine the incidence of VAP.
Subjects:
Over a 6-month period we had 175 patients who required mechanical ventilation for longer than 24 hours.
Results:
VAP occurred in 56 patients (32%). Stepwise logistic regression analysis identified 5 factors independently associated with VAP (p < 0.05): bronchoscopy (adjusted odds ratio [AOR] = 2.95; 95% confidence interval [CI], 1.1-8.3; p = 0.036); tube thoracostomy (AOR = 2.78; 95% CI, 1.1-6.6; p = 0.023); tracheostomy (AOR = 3.56; 95% CI, 1.7-8.4; p = 0.002); Acute Physiology and Chronic Health Evaluation (APACHE II) score >/= 18 (AOR = 2.33; 95% CI, 1.1-5.1; p = 0.033); and enteral feeding (AOR = 2.89; 95% CI, 1.3-7.7; p = 0.026). The duration of mechanical ventilation was longer among patients who developed VAP (p < 0.001). VAP was not associated with the cause of ICU admission.
Conclusions:
VAP is a common infection and certain interventions might affect the incidence of VAP. ICU clinicians should be aware of the risk factors for VAP, which could prove useful in identifying patients at high risk for VAP and modifying patient care to minimize the risk of VAP, such as avoiding unnecessary bronchoscopy or modulating enteral feeding.
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