Journals / ANKEM Dergisi / 2011 / Cilt: 25 - Sayı: 2

Antibiotic susceptibility of Staphylococcus aureus strains isolated from blood cultures

Kan kültürlerinden izole edilen Staphylococcus aureus suşlarının antibiyotiklere duyarlılıkları

Pages
84–88
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Determination of agents causing bacteremia and antibiotic susceptibility is important for guiding empirical treatment and in the establishment of antibiotic usage guidelines.

📌 3 Key Takeaways

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Objective & Hypothesis:The aim of this study was to determine the antimicrobial susceptibilities of Staphylococcus aureus strains isolated from blood cultures of hospitalized patients in 2007-2009 years, retrospectively.
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Key Findings & Data:The isolates were identified by conventional methods and Phoenix 100 BD Automated System (Becton Dickinson Diagnostic Systems, Sparks).
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Conclusion & Impact:Determination of agents causing bacteremia and antibiotic susceptibility is important for guiding empirical treatment and in the establishment of antibiotic usage guidelines.
🔬Design:Research Article
📍Scope:2007-2009 Verileri
⚙️Variables:Domain Parameters

Abstract

The aim of this study was to determine the antimicrobial susceptibilities of Staphylococcus aureus strains isolated from blood cultures of hospitalized patients in 2007-2009 years, retrospectively. The isolates were identified by conventional methods and Phoenix 100 BD Automated System (Becton Dickinson Diagnostic Systems, Sparks). Antibiotic susceptibility tests were performed by the Kirby-Bauer disk diffusion method according to the standards of Clinical and Laboratory Standards Institute (CLSI). Of the 287 S.aureus strains, 165 (57.5 %) were methicillin-susceptible S.aureus (MSSA) and 122 (42.5 %) were methicillin-resistant S.aureus (MRSA). The susceptibilities of MSSA and MRSA strains for gentamicin were found as 99 % and 21 %, for tetracycline 98 % and 53 %, for ciprofloxacin 97 % and 12 %, for trimethoprim/sulfamethoxazole 96 % and 84 %, for erythromycin 87 % and 29 %. These differences were found statistically significant (p<0.01-0.001). All strains were found susceptibile to vancomycin and linezolid. Mortality rates in bacteremia caused by MRSA are very higher than MSSA. Determination of agents causing bacteremia and antibiotic susceptibility is important for guiding empirical treatment and in the establishment of antibiotic usage guidelines.

Özet

2007-2009 yıllarında yatan hastaların kan kültürlerinden izole edilen Staphylococcus aureus suşlarının antibiyotiklere duyarlılık oranları retrospektif olarak incelenmiştir. Bakteri identifikasyonu konvansiyonel yöntemler ve Phoenix 100 BD Otomatize Sistemi (Becton Dickinson Diagnostic Systems, Sparks) kullanılarak yapılmıştır. Bakterilerin antibiyotiklere duyarlılıkları, Clinical Laboratory Standards Institute (CLSI) önerileri dikkate alınarak Kirby-Bauer disk difüzyon yöntemi ile saptanmıştır. 287 S.aureus suşunun 165’i (% 57.5) metisiline duyarlı S.aureus (MSSA) ve 122’si (% 42.5) metisiline dirençli S.aureus (MRSA) olarak belirlenmiştir. MSSA ve MRSA suşlarında gentamisine duyarlılık sırasıyla % 99 ve % 21, tetrasikline % 98 ve % 53, siprofloksasine % 97 ve % 12, trimetoprim/sülfametoksazole % 96 ve % 84, eritromisine % 87 ve % 29 olarak bulunmuştur. Bu farklar istatistik olarak anlamlı bulunmuştur (p<0.01-0.001). Vankomisin ve linezolide ise suşların tümü duyarlı bulunmuştur. MRSA’nın etken olduğu bakteremilerde mortalite oranı MSSA’ya göre oldukça yüksektir. Ampirik tedaviye yol gösterici olması ve antibiyotik kullanım politikalarının belirlenmesi açısından, bakteremiye yol açan bu tür etkenlerin ve antibiyotiklere duyarlılıklarının belirlenmesi önemlidir.

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Cite This Article

DAĞI, H. T., ARSLAN, U., TUNCER, İ. (2011). Antibiotic susceptibility of Staphylococcus aureus strains isolated from blood cultures. ANKEM Dergisi, Cilt: 25 - Sayı: 2, 84–88. https://ajindex.com/articles/158407

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References (7)

  1. Arıdoğan A, Atasever L, Bal C. Klinik örneklerden izole edilen Staphylococcus aureus suşlarının antibiyotiklere dirençleri, Türk Mikrobiyol Cem Derg 2004;34(1):20-3
  2. Barrett JF. Linezolid Pharmacia Corp, Curr Opin Invest Drugs 2000;1(2):181. PMid:11249571 3. Biedenbach DJ, Moet GJ, Jones RN. Occurrence and antimicrobial resistance pattern comparisons among bloodstream infection isolates from the SENTRY Antimicrobial Surveillance Program (1997-2002), Diagn Microbiol Infect Dis 2004; 50(1):59-69. http://dx.doi.org/10.1016/j.diagmicrobio.2004.05.003 PMid:15380279 4. Borg MA, Kraker M, Scicluna E et al. Prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in invasive isolates from southern and eastern Mediterranean countries, J Antimicrob Chemother 2007;60(6):1310-5. http://dx.doi.org/10.1093/jac/dkm365 PMid:17913724 5. Chi CY, Wong WW, Fung CP, Yu KW, Liu CY. Epidemiology of community-acquired Staphylo-coccus aureus bacteremia, J Microbiol Infect 2004; 37(1):16-23
  3. Clinical Laboratory Standard Institute: Perfor-mance Standards for Antimicrobial Susceptibility Testing; Sixteenth Informational Supplement, CLSI Document M100-S17, CLSI, Wayne (2007)
  4. Decousser JW, Pina P, Picot F et al. Frequency of isolation and antimicrobial susceptibility of bacterial pathogens isolated from patients with bloodstream infections: a French prospective national survey, J Antimicrob Chemother 2003;51(5):1213-22. http://dx.doi.org/10.1093/jac/dkg201 PMid:12697655 8. Denis O, Nonhoff C, Byl B, Knoop C, Bobin-Dubreux S, Struelens MJ. Emergence of vancomycin-intermediate Staphylococcus aureus in a Belgian hospital: microbiological and clinical features, J Antimicrob Chemother 2002;50(3):383-91. http://dx.doi.org/10.1093/jac/dkf142 PMid:12205063 9. Diekema DJ, Jones RN. Oxazolidinone antibiotics, Lancet 2001;358(9297):1975-82.
  5. Dizbay M, Sipahi AB, Günal Ö ve ark. Metisiline dirençli Staphylococcus aureus izolatlarında glikopeptid ve linezolid direncinin araştırılması, ANKEM Derg 2007;21(1):23-6
  6. Doğan Ö, Yalınay Çırak M, Engin D, Türet S. Klinik örneklerden izole edilen stafilokoklarda metisilin direnci ve çeşitli antibiyotiklere in-vitro duyarlılıkları, ANKEM Derg 2005;19(1):39-42
  7. Ekşi F, Balcı İ, Gayyurhan E.D, Çekem G. Klinik örneklerden soyutlanan Staphylococcus aureus suşlarının metisilin direncinin belirlenmesi ve antimikrobiyal ilaçlara duyarlılıklarının değerlendirilmesi, İnfeksiyon Derg 2007;2