Ventilator-Associated Pneumonia and Its Responsible Germs; an Epidemiological Study

Area of Science:

• Infectious Diseases
• Critical Care Medicine
• Microbiology

Background:

• Ventilator-associated pneumonia (VAP) is a frequent hospital-acquired infection in intensive care units (ICUs).
• Evolving pathogen patterns and rising infection rates necessitate updated epidemiological data.
• This study investigates VAP prevalence and causative bacterial agents.

Purpose of the Study:

• To determine the prevalence of VAP in mechanically ventilated patients.
• To identify the primary bacterial pathogens responsible for VAP.
• To assess the antibiotic resistance patterns of these pathogens.

Main Methods:

• A cross-sectional study evaluated 518 patients meeting VAP criteria (new chest X-ray infiltrate plus ≥2 clinical signs).
• Demographic, clinical, laboratory, and outcome data were collected and analyzed.
• SPSS version 20 was used for descriptive statistical analysis.

Main Results:

• VAP prevalence was 11%, with a high mortality rate of 78.9%.
• Acinetobacter baumannii (31.58%) and Klebsiella pneumoniae (29.82%) were the most common pathogens.
• Significant antibiotic resistance was observed, including pan-drug resistance (PDR) and extensive drug resistance (XDR).

Conclusions:

• VAP presents a significant challenge in ICUs, characterized by high mortality.
• Purulent discharge, leukocytosis, and fever are key clinical indicators.
• Effective antibiotic strategies are crucial due to prevalent drug-resistant bacteria like A. baumannii and K. pneumoniae.