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. 2023 Jan 15;12(1):176.
doi: 10.3390/antibiotics12010176.

Infection-Related Ventilator-Associated Complications in Critically Ill Patients with Trauma: A Retrospective Analysis

Affiliations

Infection-Related Ventilator-Associated Complications in Critically Ill Patients with Trauma: A Retrospective Analysis

Emanuele Russo et al. Antibiotics (Basel). .

Abstract

Background: Trauma is a leading cause of death and disability. Patients with trauma undergoing invasive mechanical ventilation (IMV) are at risk for ventilator-associated events (VAEs) potentially associated with a longer duration of IMV and increased stay in the intensive care unit (ICU).

Methods: We conducted a retrospective cohort study aimed to evaluate the incidence of infection-related ventilator-associated complications (IVACs), possible ventilator-associated pneumonia (PVAP), and their characteristics among patients experiencing severe trauma that required ICU admission and IMV for at least four days. We also determined pathogens implicated in PVAP episodes and characterized the use of antimicrobial therapy.

Results: In total, 88 adult patients were included in the main analysis. In this study, we observed that 29.5% of patients developed a respiratory infection during ICU stay. Among them, five patients (19.2%) suffered from respiratory infections due to multi-drug resistant bacteria. Patients who developed IVAC/PVAP presented lower total GCS (median value, 7; (IQR, 9) vs. 12.5, (IQR, 8); p = 0.068) than those who did not develop IVAC/PVAP.

Conclusions: We observed that less than one-third of trauma patients fulfilling criteria for ventilator associated events developed a respiratory infection during the ICU stay.

Keywords: anti-infective agents; antimicrobial stewardship; intensive care unit; mechanical ventilators; trauma; traumatic brain injury; ventilator associated pneumonia.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Flow chart of study population selection; gray boxes, subjects excluded from the main analysis (see methods). ICU: intensive care unit; LoS: length of stay; h: hours; IMV: invasive mechanical ventilation.
Figure 2
Figure 2
Patients admitted with trauma diagnoses during the study period; among these were patients on mechanical ventilation for more than 96 h (potentially fulfilling the criteria for IVAC of PVAP development), patients developing respiratory infection fulfilling criteria for VACs, and patients developing IVACs/PVAPs. For the last group, percentages are over total admissions (upper line) and over the number of individuals on MV for more than 96 h (lower line, between parenthesis). MV: mechanical ventilation; h: hours; IVAC: infection-related ventilator-associated complications; PVAP: possible ventilator-associated pneumonia; VAC: ventilator-associated conditions.
Figure 3
Figure 3
Bacteria detected in the respiratory tract samples of patients with IVAC/PVAP (total number of positive samples). The numbers above the columns represent the relative percentage of the total number of positive samples. Asterisks indicate pathogens that presented multi-drug resistance in at least one sample. IVAC: infection-related ventilator-associated complications; PVAP: possible ventilator-associated pneumonia.

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