Volume 15, Issue 6 (November 2012)                   J Arak Uni Med Sci 2012, 15(6): 11-16 | Back to browse issues page

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Hoseinizadeh A, Abtahi H, ShojaPour M, Akbari M, Nazari R, Sofian M. Prevalence and antimicrobial susceptibility pattern of vancomycin resistant enterococci isolated from clinical sample of educational hospitals in Arak. J Arak Uni Med Sci 2012; 15 (6) :11-16
URL: http://jams.arakmu.ac.ir/article-1-1341-en.html
1- Department of microbiology,Islamic Azad University of Qom,Iran
2- and Medical Research Center, Arak University of Medical Sciences, Arak, Iran , h_abtahi2@yahoo.co.uk
3- and Medical Research Center, Arak University of Medical Sciences, Arak, Iran
4- Assistant Professor (MSc, PhD), Department of Microbiology, Qom Branch,
5- Dept. of infectious disease, School of Medicine, Arak University of Medical Sciences, and Tuberculosis and Pediatrics Infectious Research Center, Arak, Iran
Abstract:   (15691 Views)
Background: Enterococcus is known as an important pathogen in Iran like all around the world. The increasing use of vancomycin makes vancomycin-resistant enterococci (VRE) an important nosocomial pathogen. Vancomycin in combination with an aminoglycoside can provide effective treatment for severe enterococcus infections, while resistance to vancomycin antibiotic is increasing in enterococci. In this study, the pattern of antibiotic resistance and prevalence of vancomycin resistance enterococci have been explored. Materials and Methods: In this experimental study, after isolating and identifying 150 strains of enterococci from clinical specimens, the antibiotic resistance pattern of these strains to erythromycin, teicoplanin, vancomycin, ciprofloxacin, tetracycline, gentamicin, co-trimoxazole and linezolid was examined. The MIC test by using micro dilution broth method was performed for the vancomycin resistance enterococci specimens with the vancomycin and teicoplanin antibiotics. Results: Antibiotic susceptibility test showed 14% and 5.3% of the samples were resistant to vancomycin and teicoplanin respectively. Resistant to erythromycin, co-trimoxazole, ciprofloxacin, tetracycline, linezolid and gentamicin were 64, 40, 38.6, 6.6, 0, 38.76 percent respectively. Fourteen samples had high resistance to vancomycin which MIC were ≥ 256 µg/ml. Conclusion: Based on the results of present study, there are vancomycin-resistant enterococci in Arak as well as other parts of the world. The percentage of vancomycin resistance enterococci is high in Arak and appropriate treatment of infections caused by enterococcus is essential
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Type of Study: Original Atricle | Subject: Basic Sciences
Received: 2011/10/3 | Accepted: 2011/12/29

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