Related Experiment Video
Updated: Jun 3, 2025

Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia
Published on: June 28, 2018
Management of Ventilator-Associated Pneumonia Caused by Pseudomonas and Acinetobacter Organisms in a Pediatric
Mona Moheyeldin AbdelHalim1, Seham Awad El Sherbini2, El Shimaa Salah Ahmed2
1Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo 12613, Egypt.
Insights
Effective antibiotic therapy for ventilator-associated pneumonia (VAP) is crucial. Combination therapies, particularly aminoglycosides, quinolones, and β-lactams, show promise in controlling this dangerous hospital-acquired infection.
Area of Science:
- Infectious Diseases
- Critical Care Medicine
- Pharmacology
Background:
- Ventilator-associated pneumonia (VAP) is a severe hospital-acquired infection, often caused by multidrug-resistant (MDR) bacteria.
- It significantly contributes to morbidity and mortality in pediatric intensive care unit (PICU) patients.
Purpose of the Study:
- To identify the most effective empirical antibiotic therapies for VAP control.
- To enhance patient outcomes through optimized antibiotic strategies.
Main Methods:
- Utilized minimal inhibitory concentration (MIC) and Ameri-Ziaei double antibiotic synergism tests.
- Evaluated clinical responses to single and combination antibiotic therapies.
- Included pediatric patients (1 month–12 years) with VAP on mechanical ventilation >48 hours.
Main Results:
- Combination therapy with aminoglycosides, quinolones, and β-lactams demonstrated the greatest clinical improvement.
- A combination of aminoglycosides and dual β-lactams was the second most effective.
- Polymyxins are effective but require careful monitoring to prevent resistance.
Conclusions:
- Prompt initiation of appropriate antibiotic therapy is vital for VAP, especially with suspected MDR Gram-negative infections.
- Extended treatment durations (over 7 days) may be necessary for complete eradication of MDR P. aeruginosa or A. baumannii.
- Combination therapies offer superior outcomes for VAP management.
Abstract:
A dangerous infection contracted in hospitals, ventilator-associated pneumonia is frequently caused by bacteria that are resistant to several drugs. It is one of the main reasons why patients in intensive care units become ill or die. This research aimed to determine the most effective empirical therapy of antibiotics for better ventilator-associated pneumonia control and to improve patient outcomes by using the minimal inhibitory concentration method and the Ameri-Ziaei double antibiotic synergism test and by observing the clinical responses to both single and combination therapies. Patients between the ages of one month and twelve who had been diagnosed with ventilator-associated pneumonia and had been on mechanical ventilation for more than 48 h were included in the study, which was carried out in the Pediatric Intensive Care Unit at Cairo University's Hospital. When ventilator-associated pneumonia is suspected, it is critical to start appropriate antibiotic therapy as soon as possible. This is especially important in cases where multidrug-resistant Gram-negative infections may develop. Although using Polymyxins alone or in combination is effective, it is important to closely monitor their administration to prevent resistance from increasing. The combination therapy that showed the greatest improvement was a mix of aminoglycosides, quinolones, and β-lactams. A combination of aminoglycosides and dual β-lactams came next. Although the optimal duration of antibiotic treatment for ventilator-associated pneumonia is still unknown, treatments longer than seven days are usually required to eradicate MDR P. aeruginosa or A. baumannii completely.
More Related Videos
07:25Visualization of Pseudomonas aeruginosa within the Sputum of Cystic Fibrosis Patients
Published on: July 16, 2020
07:46Use of Artificial Sputum Medium to Test Antibiotic Efficacy Against Pseudomonas aeruginosa in Conditions More Relevant to the Cystic Fibrosis Lung
Published on: June 5, 2012
Related Concept Videos
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....
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 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:
Acute Respiratory Failure-V
Ensure that patients are monitored continuously for their response to therapy, including changes in...
Mechanical Ventilation III: Noninvasive Ventilation
Noninvasive Positive-Pressure Ventilation...
Mechanical Ventilation II: Invasive Ventilation
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...