Journals / Ortadoğu Tıp Dergisi / 2017 / Cilt: 9 - Sayı: 1

Linezolid resistance and antimicrobial susceptibility in Staphylococci isolated from clinical specimens

Klinik örneklerden izole edilen stafilokoklarda linezolid direnci ve antibiyotik duyarlılıkları

Pages
19–23
Publication Date
2017-03-02
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

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

Therefore, investigation into resistance is suggested, particularly in case of long-term linezolid use and unresponsiveness to treatment.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Introduction-Purpose: Having detected linezolid resistance in a number of staphylococcal strains isolated from clinical specimens in our hospital, in this study, we aimed to investigate the resistance profile of staphylococci to linezolid and other antimicrobial drugs.
📊
Key Findings & Data:Materials and Methods: A total of 883 staphylococcal strains isolated in the Clinical Microbiology Laboratory taken from various clinical specimens from hospitalized patients in Kartal Dr.
💡
Conclusion & Impact:Therefore, investigation into resistance is suggested, particularly in case of long-term linezolid use and unresponsiveness to treatment.
🔬Design:Research Article
📍Scope:2014 Verileri
⚙️Variables:Staphylococcus aureus · koagülaz negatif stafilokok (KNS) · linezolid

Abstract

Introduction-Purpose: Having detected linezolid resistance in a number of staphylococcal strains isolated from clinical specimens in our hospital, in this study, we aimed to investigate the resistance profile of staphylococci to linezolid and other antimicrobial drugs. Materials and Methods: A total of 883 staphylococcal strains isolated in the Clinical Microbiology Laboratory taken from various clinical specimens from hospitalized patients in Kartal Dr. Lutfi Kirdar Training and Research Hospital from 1 January 2014 to 31 March 2015 were included in our study. Antimicrobial susceptibilities of these isolates were tested by VITEK2 Automatized System (bioMérieux, France) in addition to conventional methods. The detection of the strains identified as linezolid-resistant was confirmed by Antibiotic Gradient Test (E-Test, bioMérieux, France).Results: Out of the 883 staphylococcal isolates, 183 (20.7%) and 700 (79.3%) were identified as S.aureus and coagulase-negative staphylococci (CNS), respectively. Among them, 14.1% were isolated from intensive care unit (ICU) patients, 79.9% were isolated from blood specimens. Thirty-four per cent of 183 S.aureus isolates and 79% of 700 CNS isolates were found to be methicillin-resistant. Among 125 CNS blood isolates from ICU patients, three (2.4%) isolates were resistant to linezolid. While two of these isolates were methicillin-resistant S.epidermidis, the third isolate was methicillin-resistant S. hominis. Conclusion: Although the rate of resistance to linezolid, an antibiotic used clinically in our country since 2005, appears to be low, it has a potential to increase. Therefore, investigation into resistance is suggested, particularly in case of long-term linezolid use and unresponsiveness to treatment.

Özet

Amaç: Bu çalışmada, hastanemizde klinik örneklerde üreyen bazı stafilokoklarda linezolide direnç tespit edilmesi üzerine, linezolide ve diğer antibiyotiklere direnç durumunu araştırmayı amaçladık. Gereç ve Yöntemler: 1 Ocak 2014-31 Mart 2015 tarihleri arasında, Kartal Dr. Lütfi Kırdar Eğitim ve Araştırma Hastanesi Klinik Mikrobiyoloji laboratuvarında, yatan hastalara ait çeşitli klinik örneklerden izole edilen toplam 883 stafilokok suşu çalışmaya alınmıştır. Suşların antibiyotiklere duyarlılıkları geleneksel yöntemlere ilaveten VITEK2 Otomatize Sistemi (bioMérieux, Fransa) çalışılmıştır. Linezolide dirençli olduğu saptanan suşlar antibiyotik gradient test (Etest, bioMérieux, Fransa) ile doğrulanmıştır.Bulgular: Sekiz yüz seksen üç stafilokok suşunun 183’ü S.aureus (%20,7) ve 700’ü koagülaz negatif stafilokok (KNS) (%79,3) olarak identifiye edilmiştir. Bu suşların %14,1’i yoğun bakım ünitesi (YBÜ) kökenli olup %79,7’ü kan örneklerinden izole edilmiştir. Yüzseksenüç S.aureus suşunun %34’ ü ve 700 KNS suşunun %79’u metisiline dirençli olarak bulunmuştur. YBÜ’nde yatan hastaların örneklerinde üreyen 125 KNS suşu arasından kanda üreyen 3 suşta (%2,4) linezolid direnci saptanmıştır. Bu suşlardan 2 tanesi metisiline dirençli S.epidermidis, 1 tanesi metisiline dirençli S. hominis olarak tanımlanmıştır. Sonuç ve yorum: Ülkemizde 2005 yılından beri kullanımda olan bu antibiyotiğe direnç düşük gibi görünse de direncin artma ihtimali mevcuttur. Bu nedenle, uzun süreli kullanımlarda ve klinik yanıt elde edilmediği durumlarda direnç takibinin yapılması uygun olacaktır.

🔖

Cite This Article

DOKUTAN, A., HACISEYİTOĞLU, D., ÇAĞ, Y., YILDIRIM, E. P., BATIREL, A., Özer, S., Gönüllü, N. (2017). Linezolid resistance and antimicrobial susceptibility in Staphylococci isolated from clinical specimens. Ortadoğu Tıp Dergisi, Cilt: 9 - Sayı: 1, 19–23. https://ajindex.com/articles/30926

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (13)

  1. Efe Ş, Sınırtaş M, Özakın C. Metisiline direncli Staphylococcus aureus (MRSA) ve vankomisine direncli enterokok suşlarının in vitro Linezolid duyarlılığı. Mikrobiyol Bul. 2009; 43: 639-43.
  2. Mendes RE, Deshpande LM, Jones RN. Linezolid update: stable in vitro activity following more than a decade of clinical use and summary of associated resistance mechanisms. Drug Resist Updat. 2014; 17(1-2):1-12.
  3. Küçükbayrak A, Özdemir D. İki yeni protein sentez inhibitörü: Linezolid ve streptograminler (Kinopristin/Dalfoprustin). İnfeksiyon Derg. 2006; 20(2): 145-51. Hancock RE. Mechanism of action of newer antibiotics for gram-positive pathogens. Lancet Infect Dis. 2005; 5(4): 209-18.
  4. Bozdogan B, Appelbaum PC. Oxazolidinones: activity, mode of action, andmechanism of resistance. Int J Antimicrob Agents. 2004; 23:113–9.
  5. Diekema DJ, Jones RN. Oxazolidinoneantibiotics. Lancet. 2001; 358(9297):1975-82.
  6. Altun U H, Sancak B. Staphylococcus aureus’un Tedavisinde Yeni Antibiyotikler. Türk Mikrobiyol Cem Derg. 2010; 40 (2): 63-74.
  7. Cui L, Wang Y, Li Y, et al. (2013) Cfr-Mediated Linezolid-Resistance among Methicillin-Resistant Coagulase-Negative Staphylococci from Infections of Humans. PLoS ONE 8(2): e57096. doi:10.1371/journal.pone.0057096. CLSI. Performance Standarts for Antimicrobial Susceptibility Testing; Twenty-Fourth Informational supplement. CLSI document M100-S24. Wayne, PA: Clinical and Laboratory Standarts Institute; 2014. George A. Pankey. Tigecycline. J Antimicrob Chemother. 2005; 56: 470-80.
  8. Hiramatsu K, Hanaki H, Ino T, Yabuta K, Oguri T, Tenover FC. Methicillin-resistant Staphylococcus aureus clinical strain with reduced vancomycin susceptibility. J Antimicrob Chemother. 1997; 40: 135-46.
  9. Garcia MS, Torre MA, Morales G, et al. Clinical outbreak of linezolid-resistance Staphylococcus aureus in intensive care unit. JAMA 2010; 303(22): 2260-4.
  10. Tsiodras S, Gold HS, Sakoulas G, et al. Linezolid resistance in a clinicalisolate of Staphylococcus aureus. Lancet. 2001; 358(9277):207-8.
  11. Bender J, Strommenger B, Steglich M, et al. Linezolid resistance in clinical isolates of Staphylococcus epidermidis from German hospitals and characterization of two cfr-carrying plasmids. J Antimicrob Chemother. 2015;70(6):1630-8.
  12. Ikeda-Dantsuji Y, Hanaki H, Sakai F,et al. Linezolid-resistant Staphylococcus aureus isolated from 2006 through 2008 at six hospitals in Japan. J Infect Chemother. 2011; 17:45-51.
  13. Jones RN, Kohno S, Ono Y, Ross JE, Yanagihara K. ZAAPS International Surveillance P