Enteral Nutrition and Acid-Suppressive Therapy in the PICU: Impact on the Risk of Ventilator-Associated Pneumonia.

Objective: Enteral nutrition has been implicated as a risk factor for ventilator-associated pneumonia. We explored the prevalence of ventilator-associated pneumonia and its association with clinical and nutrition-related therapies in mechanically ventilated children. Design: Prospective, multicenter, cohort study. Setting: Fifty-nine PICU in 15 countries. Patients: Children less than 18 years old, mechanically ventilated for more than 48 hours. Interventions: None. Multivariable logistic regression to determine factors associated with ventilator-associated pneumonia. Measurements and Major Results: Data are presented as median (interquartile range) or counts (%). We enrolled 1,245 subjects (45% women; 42% surgical), age 20 months (4-84 mo), and duration of mechanical ventilation 7 days (3-13 d). Culture-positive ventilator-associated pneumonia was diagnosed in 80 patients (6.4%); duration of mechanical ventilation for this subgroup was 17 days (8-39 d). Enteral nutrition was delivered in 985 patients (79%), initiated within 48 hours in 592 patients (60%), and via postpyloric route in 354 patients (36%). Acid-suppressive agents were used in 763 patients (61%). The duration of enteral nutrition (p = 0.21), route (gastric vs postpyloric) of delivery (p = 0.94), severity of illness (p = 0.17), and diagnostic category on admission (p = 0.31) were not associated with ventilator-associated pneumonia. After adjusting for enteral nutrition days, illness severity, and site, ventilator-associated pneumonia was significantly associated with mechanical ventilation more than 10 days (odds ratio, 3.7; 95% CI, 2.2-6.5; p

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