Bacterial and fungal isolates from endotracheal tube secretions culture and their antibiogram in patients with ventilator associated pneumonia

Abstract

The study was undertaken to determine causative bacteria / Fungi and antimicrobial sensitivity pattern of the isolates in patients with VAP. The study was conducted at the Department of Medicine. The duration of the study was two years. A total of 100 VAP cases were studied, sample collected was endotracheal aspirate. More the age, more the patient is prone to VAP but the role sex in occurance of VAP was not statistically significant in our study. VAP was considered when after 48 hours of intubation patient develops Pneumonia, Leukocytosis/ Leukopenia, Fever. Gram negative bacteria were the most common organism causing VAP. Acinetobacter Baumannii was the most notorious bacteria causing VAP contributes to 53% followed by Klebsiella species 16%, Pseudomonas species 15% were the most frequent bacteria causing VAP later followed by coagulase positive Staphylococcus 6%, Escherichia coli 4%, Candida 4% and Enterobacter Cloacae Complex 2%. The antibiotic sensitivity pattern of gram negative bacteria isolated in our study including Pseudomonas species showed that most of them are sensitive to Colistin, Tigecycline, Meropenem and Amikacin followed by other drugs. In case of Gram Positive (Coagulase positive Staphylococcus) is sensitive to vancomycin and very rarely to Linezolid.