Microorganisms' colonization and their antibiotic resistance pattern in oro - Tracheal tube

Abdollahi, A. and Shoar, S. and Shoar, N. (2013) Microorganisms' colonization and their antibiotic resistance pattern in oro - Tracheal tube. Iranian Journal of Microbiology, 5 (2). pp. 102-107.

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Background and Objectives: Recently, nosocomial infections have been discussed as a critical issue among intubated patients leading to significant morbidity and mortality. Hence, the pattern of microbiological colonization and antibiotic resistance are much valuable in this regard. We aimed to investigate the pattern of microorganism colonization and antibiotic resistance in patients with endotracheal tube or tracheostomy to propose a proper empirical antibiotic therapy in this setting. Materials and Methods: This cross sectional study was conducted among 880 patients admitted in Imam Khomeini hospital between 2008 and 2011 who were subsequently intubated or underwent tracheostomy due to insufficient self ventilation. Samples for microbiological cultures were obtained after extubation and then sent to the central laboratory for further assessment. Antibiograms and microbiological cultures were obtained for each sample. Results: Of 880 patients enrolled in this study, 531 (60.3) were male and 349 (39.7) were female. Nineteen different organisms were isolated including Acinetobacter (213, 24.2), Pseudomonas aeruginosa (147, 16.7), Staphylococcus aureus (106, 12), Proteus mirabilis (90, 10.2), and other organisms (324, 36.8). Antibiotic resistance was mainly seen in Acinetobacter (ciprofloxacin, ceftazidim, cefepim, and penicillin), S. aureus (imipenem) and Klebsiella (pipracillintazobactam and ampicillin-sulbactam). Conclusion: This study represents the most common microorganisms colonizing tracheal tube of hospitalized patients and their pattern of antibiotic resistance. Acinetobacter was the most common microorganism isolated from endotracheal tube. Hence, it may be possible to initiate the empiric antibiotic treatment before the results of culture are become available. Ciprofloxacin was also the most prevalent antibiotic revealing resistant pattern. Moreover, most of the microorganisms were sensitive to imipenem and pipracillin-tazobactam.

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: cefepime; cefodizime; ciprofloxacin; imipenem; penicillin derivative; piperacillin plus tazobactam; sultamicillin, antibiotic resistance; antibiotic sensitivity; article; artificial ventilation; cross-sectional study; endotracheal tube; extubation; female; hospital patient; human; major clinical study; male; microbial colonization; polymerase chain reaction; prevalence; tracheostomy
Subjects: Immunology and Microbiology
Divisions: Faculty of Medicine > Clinical Sciences > Department of Internal Medicine
Depositing User: editor . 2
Date Deposited: 03 Mar 2017 15:13
Last Modified: 03 Mar 2017 15:13
URI: http://eprints.kaums.ac.ir/id/eprint/646

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