Respiratory Viruses in Invasively Ventilated Critically Ill Patients-A Prospective Multicenter Observational Study.

Objectives: The presence of respiratory viruses and the association with outcomes were assessed in invasively ventilated ICU patients, stratified by admission diagnosis. Design: Prospective observational study. Setting: Five ICUs in the Netherlands. Patients: Between September 1, 2013, and April 30, 2014, 1,407 acutely admitted and invasively ventilated patients were included. Interventions: None. Measurements and Main Results: Nasopharyngeal swabs and tracheobronchial aspirates were collected upon intubation and tested for 14 respiratory viruses. Out of 1,407 patients, 156 were admitted because of a severe acute respiratory infection and 1,251 for other reasons (non-severe acute respiratory infection). Respiratory viruses were detected in 28.8% of severe acute respiratory infection patients and 17.0% in non-severe acute respiratory infection (p

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