ArticleAnnals of intensive care2025
Impact of respiratory viruses detection on outcomes in ventilated nosocomial pneumonia: an exposed/unexposed study.
Article in Annals of intensive care, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Epidemiological characteristics of patients hospitalized with severe complicated influenza in Taiwan from 2010 to 2020: a retrospective study.BMC infectious diseases · 2026Article
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11 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionVentilator-associated pneumonia (VAP) and ventilated hospital-acquired pneumonia (vHAP) are major causes of morbidity and mortality in intensive care unit (ICU) patients. The role of viral co-infections in these conditions is an emerging area of interest; however, their impact on clinical outcomes remains poorly understood. This study aimed to assess the effect of viral detection on mortality and other clinical outcomes in patients with bacterial vHAP/VAP. MATERIALS AND
methodsWe conducted a retrospective analysis of patients diagnosed with bacterial vHAP or VAP in a tertiary ICU between 2020 and 2024. All patients underwent distal respiratory sampling with quantitative culture and multiplex PCR (mPCR) testing for respiratory viruses (Biofire FilmArray Pneumonia Panel). Patients with SARS-CoV-2 infection were excluded. Those with bacterial and viral co-infections were matched 1:1 with patients having bacterial-only vHAP/VAP based on age, sex, SAPS II score, ICU admission cause, and causative bacteria. We compared clinical outcomes, including ICU mortality, 3-month mortality, ICU length of stay, and duration of mechanical ventilation between the two groups.
resultsEighty patients were included, 40 with bacterial and viral detection and 40 with bacterial-only vHAP/VAP. The median age was 63 years, and 92% of the cohort were male. Common comorbidities included diabetes (25%), heart failure (20%), chronic renal failure (20%), and chronic lung disease (32%). Nineteen percent of patients were immunocompromised. The viral pathogens identified in the co-infection group were rhinovirus/enterovirus 33% (13/40), endemic coronaviruses 30% (12/40), influenza viruses 10% (4/40), parainfluenza viruses 8% (3/10), adenovirus 8% (3/10), metapneumovirus 5% (2/40), and respiratory syncytial virus 5% (2/40). Respiratory viruses were detected in a nasopharyngeal swab in 30% (12/30). The 3-month mortality rate was 36%, ICU mortality was 32%, the median duration of mechanical ventilation was 21 days [IQR 12-31.5], and the median ICU length of stay was 24 days [IQR 13-39.5]. There were no significant differences in these outcomes between the bacterial and viral group and the bacterial-only group.
conclusionsIn this cohort of patients with bacterial vHAP/VAP, the detection of respiratory viruses did not significantly impact ICU mortality, 3-month mortality, or ICU length of stay. These findings may suggest that bacterial infections are the primary determinants of clinical outcomes in vHAP/VAP.
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