Related Experiment Video
Updated: Aug 16, 2026

Pseudomonas aeruginosa Induced Lung Injury Model
Published on: October 29, 2014
Pneumonia in head-injured and severe trauma patients
Gonzalo Sirgo1, Maria Bodí, Emili Díaz
1Critical Care Department, University Hospital 12 Octubre, Madrid, Spain.
Insights
Trauma patients are at high risk for nosocomial pneumonia (NP), a major cause of death. Early identification of high-risk individuals can improve outcomes and reduce healthcare costs.
Area of Science:
- Critical care medicine
- Infectious disease epidemiology
- Trauma surgery
Background:
- Trauma is a leading cause of mortality in young individuals, with infection being a primary driver of late deaths.
- Nosocomial pneumonia (NP) significantly contributes to morbidity and healthcare costs in trauma patients.
- Identifying patients at high risk for NP is crucial for timely intervention.
Purpose of the Study:
- To highlight the significance of early identification of nosocomial pneumonia (NP) in trauma patients.
- To discuss the common pathogens and risk factors associated with NP in this population.
- To emphasize the diagnostic challenges and treatment considerations for NP in trauma survivors.
Main Methods:
- Review of existing literature on trauma-related mortality and nosocomial pneumonia.
- Analysis of common pathogens, including Methicillin-sensitive Staphylococcus aureus (MSSA) and gram-negative bacilli.
- Identification of key risk factors such as prolonged mechanical ventilation, enteral feeding, and craniotomy.
Main Results:
- Methicillin-sensitive Staphylococcus aureus (MSSA) is prevalent in trauma patients in a coma, with nasal colonization increasing pneumonia risk.
- Gram-negative bacilli are the primary cause of NP in other trauma patients.
- Diagnostic challenges exist due to non-specific radiographic findings in trauma patients.
Conclusions:
- Early identification and risk stratification for nosocomial pneumonia are vital in trauma care.
- Empirical antibiotic coverage with a beta-lactam active against MSSA is recommended for trauma patients in a coma.
- Tailoring treatment based on local microbial patterns and patient comorbidities is essential.
Abstract:
Trauma is the leading cause of death in young people. Trauma deaths have a classic trimodal distribution; in late death (3 days to 3 weeks postinjury), infection is the principal cause. Because pneumonia is a major cause of morbidity in trauma patients, early identification of subjects at a high risk of developing nosocomial pneumonia (NP) can reduce morbidity and costs. Methicillin-sensitive Staphylococcus aureus (MSSA) is the predominant pathogen in multiple-trauma patients in coma, and nasal MSSA colonization at time of severe injury may increase the risk of MSSA pneumonia. In the remaining patients, gram-negative bacilli are responsible for the majority of cases. Prolonged mechanical ventilation, continuous enteral feeding, and craniotomy are risk factors for NP in trauma patients. Diagnosis of NP in these patients is difficult because radiographic infiltrates may not highlight any infection. In coma patients, coverage with a beta-lactam active against MSSA is mandatory. Variations in organisms and sensitivities across intensive care units due to differences in demographic characteristics or comorbidities should be considered.
Related Concept Videos
Pneumonia I: Introduction
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pneumonia I: Introduction
Pneumonia IV: Management
Bacterial Pneumonia Treatment
For bacterial pneumonia, antibiotics serve as the cornerstone of therapy. Initial treatment often begins with empirical antibiotics, tailored to the anticipated causative organism and adjusted based on culture results. Key antibiotic choices include:
Pneumonia III: Complications and Assessment
Pneumothorax-I
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
Pneumonia V: Nursing management and Prevention
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
Position the patient correctly to facilitate drainage of the affected lung segments. Manual or mechanical percussion and vibration can also be employed.