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Volume 30, Issue 3

Original Article

Evaluation of Hospital Infections in Intensive Care Unit

Şafak Özer Balın
Affiliations
  • Sağlık Bilimleri Üniversitesi, Elazığ Eğitim ve Araştırma Hastanesi, İnfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Kliniği, Elazığ, Türkiye
,
Arzu Aktaş Şenol
Affiliations
  • Sağlık Bilimleri Üniversitesi, Elazığ Eğitim ve Araştırma Hastanesi, İnfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Kliniği, Elazığ, Türkiye
  • Hospital infections
  • intensive care units
  • microbial drug resistance
  • surveillance

Abstract

Objective: The aim of this study is to detect nosocomial infectious agents and their resistance patterns in intensive care unit (ICU) of our hospital and to make a contribution to rational antibiotic usage in the light of these findings.

Methods: 500 patients followed in our ICU between 2015 and 2016 were enrolled in this study. Infectious agents isolated from patients were identified with conventional methods and VITEK® 2 Compact (bioMérieux, Marcy l’Etoile, France) automated system.

Results: In 87 of 500 patients, 105 episodes of nosocomial infections have been identified. Nosocomial infection rate was calculated as 21%. While bloodstream infections (42.8%) were most common in all nosocomial infections, ventilator-associated pneumonia took the first place among device-associated nosocomial infections. 127 microorganisms were detected in patients with diagnosis of nosocomial infections comprising 75 (59%) Gram-negative bacteria, 41 (32.75%) Gram-positive bacteria and 11 (8.66%) yeasts. The most common agents were Acinetobacter spp. (29.9%) and Pseudomonas aeruginosa (19.69%) in Gram-negative bacteria, and Enterococcus spp. (17.32%) and coagulase-negative staphylococci (CoNS) (13.38%) in Gram-positive bacteria. While the most common agents were Acinetobacter spp. (55.5%) in ventilator-associated pneumonia, and Candida spp. (33.3%) and P. aeruginosa (29.6%) in urinary catheter-associated urinary tract infection, Enterococcus gallinarum (31.25%) was observed most commonly in central venous catheter-related bloodstream infections. 17 of 22 enterococcal strains were isolated from blood and 5 were obtained from urine. Resistance to vancomycin and teicoplanin were detected in two urinary E. faecium isolates. Methicillin resistance was identified as 47% in CoNS. Extended-spectrum β-lactamase positivity was determined in 40% of Escherichia coli strains and 60% of Klebsiella pneumoniae. Carbapenem resistance was observed in 40% of P. aeruginosa, 20% of E. coli and 48.65% of A. baumannii strains. According to the sensitivity results, the most effective antibiotics for Gram-negative bacteria were colistin and aminoglycosides against Acinetobacter spp. and Pseudomonas spp., and carbapenems against E. coli and Klebsiella strains.

Klimik Dergisi 2017; 30(3): 108-13.

Conclusions: Monitoring of nosocomial infections, infectious agents and resistance rates in the ICU has great importance for prevention of infections and rational antibiotic use.

Cite this article as: Özer-Balın Ş, Aktaş-Şenol A. [Evaluation of hospital infections in intensive care unit]. Klimik Derg. 2017; 30(3): 108-13. Turkish.

  • 108-113
  • 10.5152/kd.2017.28
  • July 23, 2019
  • 2161
  • 706
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  • This work is licensed under a Creative Commons Attribution-Non Commercial 4.0 International License. CC BY-NC
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