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Supine position and nonmodifiable risk factors for ventilator-associated pneumonia in trauma patients
Christopher P Michetti1, Heather A Prentice1, Jennifer Rodriguez1
1Department of Surgery, Inova Fairfax Hospital, Falls Church, VA, USA.
Background:
We studied trauma-specific conditions precluding semiupright positioning and other nonmodifiable risk factors for their influence on ventilator-associated pneumonia (VAP).
Methods:
We performed a retrospective study at a Level I trauma center from 2008 to 2012 on ICU patients aged ≥15, who were intubated for more than 2 days. Using backward logistic regression, a composite of 4 factors (open abdomen, acute spinal cord injury, spine fracture, spine surgery) that preclude semiupright positioning (supine composite) and other variables were analyzed.
Results:
In total, 77 of 374 (21%) patients had VAP. Abbreviated Injury Score head/neck greater than 2 (odds ratio [OR] 2.79, P = .006), esophageal obturator airway (OR 4.25, P = .015), red cell/plasma transfusion in the first 2 intensive care unit days (OR 2.59, P = .003), and 11 or more ventilator days (OR 17.38, P < .0001) were significant VAP risk factors, whereas supine composite, scene vs emergency department airway intervention, brain injury, and coma were not.
Conclusion:
Factors that may temporarily preclude semiupright positioning in intubated trauma patients were not associated with a higher risk for VAP.
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