Investigation of the Minimal Inhibitory Concentration Values of Vancomycin, Teicoplanin and Linezolid among MRSA Isolated from Inpatients by E-test Method

Introduction: Although studies aimed at the prevention of mortality and morbidity in MRSA infections have been ongoing for years, methicillin resistan Staphylococcus aureus (MRSA) remains one of the most important pathogens leading to nosocomial infections. In the treatment of cases infected by MRSA...

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Main Authors: Tuğrul HOŞBUL, Bayhan BEKTÖRE, Barış YALÇIN, Burak SELEK, Mustafa ÖZYURT
Format: Article
Language:English
Published: Bilimsel Tip Yayinevi 2012-06-01
Series:Flora Infeksiyon Hastalıkları ve Klinik Mikrobiyoloji Dergisi
Subjects:
Online Access:http://www.floradergisi.org/getFileContent.aspx?op=REDPDF&file_name=2012-17-02-068-074.pdf
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author Tuğrul HOŞBUL
Bayhan BEKTÖRE
Barış YALÇIN
Burak SELEK
Mustafa ÖZYURT
author_facet Tuğrul HOŞBUL
Bayhan BEKTÖRE
Barış YALÇIN
Burak SELEK
Mustafa ÖZYURT
author_sort Tuğrul HOŞBUL
collection DOAJ
description Introduction: Although studies aimed at the prevention of mortality and morbidity in MRSA infections have been ongoing for years, methicillin resistan Staphylococcus aureus (MRSA) remains one of the most important pathogens leading to nosocomial infections. In the treatment of cases infected by MRSA, the most important and most common issue is multi-drug resistance and the limited therapy options. Today, in the therapy of MRSA infections, glycopeptide antibiotics such as vancomycin and teicoplanin and linezolid are the major therapeutic agents of choice. The aim of this study was to determine the minimal inhibitory concentration (MIC) values of vancomycin, teicoplanin and linezolid against MRSA strains isolated in our institution over a four year period, to compare with the results from our country, and to contribute to the therapeutic options in MRSA infections. Materials and Methods: Between January 2006 and December 2009, vancomycin, teicoplanin and linezolid susceptibilities of 138 nonduplicate MRSA strains isolated from inpatients were determined by E-test method according to the Clinical and Laboratory Standards Institute (CLSI) guidelines. Results: Resistance to vancomycin, teicoplanin and linezolide was not detected in MRSA strains isolated from inpatients in our hospital. MIC50 and MIC90 values for vancomycin, teicoplanin and linezolid were found 1.5 µg/mL and 2 µg/mL, 2 µg/mL and 4 µg/mL, and 0.75 µg/mL and 1 µg/mL, respectively. Conclusion: Our data are consistent with the data from our country. Our results indicate that linezolid could be used as a safe therapeutic option in addition to glycopeptides in the treatment of MRSA infections.
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spelling doaj.art-f70771f06a2e46ada5d908b9736817332023-02-15T16:10:21ZengBilimsel Tip YayineviFlora Infeksiyon Hastalıkları ve Klinik Mikrobiyoloji Dergisi1300-932X1300-932X2012-06-011726874Investigation of the Minimal Inhibitory Concentration Values of Vancomycin, Teicoplanin and Linezolid among MRSA Isolated from Inpatients by E-test MethodTuğrul HOŞBUL0Bayhan BEKTÖRE1Barış YALÇIN2Burak SELEK3Mustafa ÖZYURT4Department of Medical Microbiology, Gulhane Military Medical Academy Haydarpasa Training Hospital, Istanbul, TurkeyDepartment of Medical Microbiology, Gulhane Military Medical Academy Haydarpasa Training Hospital, Istanbul, TurkeyDepartment of Medical Microbiology, Gulhane Military Medical Academy Haydarpasa Training Hospital, Istanbul, TurkeyDepartment of Medical Microbiology, Gulhane Military Medical Academy Haydarpasa Training Hospital, Istanbul, TurkeyDepartment of Medical Microbiology, Gulhane Military Medical Academy Haydarpasa Training Hospital, Istanbul, TurkeyIntroduction: Although studies aimed at the prevention of mortality and morbidity in MRSA infections have been ongoing for years, methicillin resistan Staphylococcus aureus (MRSA) remains one of the most important pathogens leading to nosocomial infections. In the treatment of cases infected by MRSA, the most important and most common issue is multi-drug resistance and the limited therapy options. Today, in the therapy of MRSA infections, glycopeptide antibiotics such as vancomycin and teicoplanin and linezolid are the major therapeutic agents of choice. The aim of this study was to determine the minimal inhibitory concentration (MIC) values of vancomycin, teicoplanin and linezolid against MRSA strains isolated in our institution over a four year period, to compare with the results from our country, and to contribute to the therapeutic options in MRSA infections. Materials and Methods: Between January 2006 and December 2009, vancomycin, teicoplanin and linezolid susceptibilities of 138 nonduplicate MRSA strains isolated from inpatients were determined by E-test method according to the Clinical and Laboratory Standards Institute (CLSI) guidelines. Results: Resistance to vancomycin, teicoplanin and linezolide was not detected in MRSA strains isolated from inpatients in our hospital. MIC50 and MIC90 values for vancomycin, teicoplanin and linezolid were found 1.5 µg/mL and 2 µg/mL, 2 µg/mL and 4 µg/mL, and 0.75 µg/mL and 1 µg/mL, respectively. Conclusion: Our data are consistent with the data from our country. Our results indicate that linezolid could be used as a safe therapeutic option in addition to glycopeptides in the treatment of MRSA infections.http://www.floradergisi.org/getFileContent.aspx?op=REDPDF&file_name=2012-17-02-068-074.pdfMethicillin resistant Staphylococcus aureusLinezolidMinimum inhibition concentrationTeicoplaninVancomycin
spellingShingle Tuğrul HOŞBUL
Bayhan BEKTÖRE
Barış YALÇIN
Burak SELEK
Mustafa ÖZYURT
Investigation of the Minimal Inhibitory Concentration Values of Vancomycin, Teicoplanin and Linezolid among MRSA Isolated from Inpatients by E-test Method
Flora Infeksiyon Hastalıkları ve Klinik Mikrobiyoloji Dergisi
Methicillin resistant Staphylococcus aureus
Linezolid
Minimum inhibition concentration
Teicoplanin
Vancomycin
title Investigation of the Minimal Inhibitory Concentration Values of Vancomycin, Teicoplanin and Linezolid among MRSA Isolated from Inpatients by E-test Method
title_full Investigation of the Minimal Inhibitory Concentration Values of Vancomycin, Teicoplanin and Linezolid among MRSA Isolated from Inpatients by E-test Method
title_fullStr Investigation of the Minimal Inhibitory Concentration Values of Vancomycin, Teicoplanin and Linezolid among MRSA Isolated from Inpatients by E-test Method
title_full_unstemmed Investigation of the Minimal Inhibitory Concentration Values of Vancomycin, Teicoplanin and Linezolid among MRSA Isolated from Inpatients by E-test Method
title_short Investigation of the Minimal Inhibitory Concentration Values of Vancomycin, Teicoplanin and Linezolid among MRSA Isolated from Inpatients by E-test Method
title_sort investigation of the minimal inhibitory concentration values of vancomycin teicoplanin and linezolid among mrsa isolated from inpatients by e test method
topic Methicillin resistant Staphylococcus aureus
Linezolid
Minimum inhibition concentration
Teicoplanin
Vancomycin
url http://www.floradergisi.org/getFileContent.aspx?op=REDPDF&file_name=2012-17-02-068-074.pdf
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