Original Article: A Clinical Study of Pattern of Microbiological Colonization of Endotracheal Tube Aspirate on Mechanically Ventilated Patients

Abstract

Introduction: Nosocomial infection is a critical issue among intubated patients which is responsible for significant morbidity and mortality of these patients. One of the most important types of this infection is pneumoia which commonly occurs in relation to endotracheal tube and mechanical ventilation named ventilator associated pneumonia. .study presents the most common microorganisms colonized from endotracheal tube of hospitalized patients in our setup and their antibiotic sensitivity pattern. Methods: 100 patients who are admitted in emergency medical ward of Hamidia Hospital and then subsequently intubated and assisted by mechanical ventilation due to insufficient self ventilation are taken for study .Samples for microbiological cultures were taken after 48 hours of intubation by mucous extractor under all aseptic precautions and then sent to Microbiology laboratory for culture and sensitivity test. Results: our study showed pseudmonas is most common organism isolated followed by klebsiella and staphylococcus aureus and most of the organism were sensitive to piperacillin-tazobactam and meropenem. Discussion: prevalence of Ventilator associated pneumonia in our setup was bserved as 25%.The bacteriology of positive sputum culture is caused predominantly by psedomonas aeruginosa in 17% followed by klebsiella 6% and staphyloccocus aureus 2%.