Positive Pleural Fluid Cultures in the ICU: A 10-Year Population-Based Cohort Study of Prevalence, Microbial Characteristics, and Clinical Associations

Símun I. Arge; Søren P. Frambo; Frederik Mølgaard Nielsen; Bodil Steen Rasmussen; Hans Linde Nielsen; Kirstine K. Søgaard; Olav Lilleholt Schjørring

doi:10.1097/ccm.0000000000007226

June 12, 2026Critical Care Medicine

Positive Pleural Fluid Cultures in the ICU: A 10-Year Population-Based Cohort Study of Prevalence, Microbial Characteristics, and Clinical Associations

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Key Points

This study aims to characterize the prevalence and microbial characteristics of positive pleural fluid cultures in ICU patients and their association with clinical outcomes.
Retrospective population-based cohort study of pleural fluid cultures in eight ICUs from March 2013 to February 2023.
Data were retrieved from microbiological and administrative databases as well as electronic medical records.
Patients included were adults undergoing pleural fluid culturing; no interventions were applied.
Out of 1251 patients, only 51 (4.1%) had a positive first pleural culture.
Suspected pleural infection increased the risk of a positive culture (Adjusted RR: 4.88; 95% CI, 2.70-8.83).
A positive culture was linked to higher 90-day mortality (Adjusted RR: 1.35; 95% CI, 1.04-1.73).

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Implication

Retrospective cohort study assesses positive pleural fluid cultures and their clinical associations in ICU patients, implying significant mortality risks.

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Arge et al. (2026) studied this question.

synapsesocial.com/papers/6a2e4632b1cc60ccdea8b026 https://doi.org/10.1097/ccm.0000000000007226

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Positive Pleural Fluid Cultures in the ICU: A 10-Year Population-Based Cohort Study of Prevalence, Microbial Characteristics, and Clinical Associations

Key Points

No abstract yet

Implication

Discussion

Cite This Study

Positive Pleural Fluid Cultures in the ICU: A 10-Year Population-Based Cohort Study of Prevalence, Microbial Characteristics, and Clinical Associations

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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