Ventilatör ilişkili pnömoni tanısında endotrakeal aspirat kültürünün ve izole edilen bakterilerin de?erlendirilmesi

Abstract

Aim: The aim of this study was to determine the ventilator-associated pneumonia (VAP) agents in isolates from endotracheal aspirate samples obtained from patients in intensive care unit (ICU) on mechanical ventilation and their susceptibility to several antibiotics. Material and Methods: Patients that received mechanical ventilation for longer than 48 hours in the ICU were diagnosed as VAP with the clinical and microbiological criteria, were enrolled in this study. Bacteria isolated from the endotracheal aspiration samples of them were identified by conventional methods and Sceptor systems, and their antibiotic susceptibilities were investigated by the National Committee for Clinical Laboratory Standards (NCCLS). Findings: A total of 72 patients were involved in this study and 84 strains were isolated. Among these patients, 12 (14.3%) had polymicrobial etiologic agent. Most commonly encountered microorganisms were Pseudomonas aeruginosa, Staphylococcus aureus and Acinetobacter spp., respectively. Most of the Gram-negative bacteria were susceptible to imipenem, amikacin and ciprofloxacin. Although methicillin resistant S. aureus rate was found %100, glycopeptides resistance was not found. It was determined that 58 (92%) of the Gram-negative bacteria produced ESBL. Results: As a result, VAP is an important and frequently seen infection in ICU. High resistance rates for antibiotics suggested that the treatment of the empirical antibiotics recommended for VAP cases should be updated according to the surveillance data. © 2011 Düzce Medical Journal