Evaluation of Antimicrobial Durability and Anti-Biofilm Effects in Urinary Catheters Against Enterococcus faecalis Clinical Isolates and  Reference Strains

Didem KART; Ayşe Semra KUSTİMUR; Meral SAĞIROĞLU; Ayşe KALKANCI

Makale detayları

Evaluation of Antimicrobial Durability and Anti-Biofilm Effects in Urinary Catheters Against Enterococcus faecalis Clinical Isolates and Reference Strains

Yazarlar:

Didem KART | Ayşe Semra KUSTİMUR | Meral SAĞIROĞLU | Ayşe KALKANCI

Yayıncı:

Trakya University

Dergi:

Balkan Medical Journal 2017 Vol.34 Issue 6, pp.546-552

Belge Tipi:

Makale

Yayın Tarihi:

10/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000758983

Sıklık:

İki Aylık

pISSN:

2146-3123

Özet:

 

Background: Enterococcus faecalis, Escherichia coli, Staphylococcus epidermidis, Pseudomonas aeruginosa and Candida albicans biofilms are major causes of catheter-associated urinary tract infections. Antimicrobial-coated or impregnated urinary catheters are seen as a possible way to prevent these infections. Aims: To determine the biofilm-forming ability of 89 E. faecalis isolates from urinary tract infections and to compare several urinary catheters for antimicrobial durability and the inhibitory effects on biofilm formation of different laboratory strains and clinical isolates of E. faecalis.Study Design: In vitro experimental study.Methods: The biofilm forming ability of E. faecalis isolates was determined by the crystal violet staining and plate counting methods. For comparison of urinary catheters, biofilms of 45 E. faecalis isolates from the catheter samples of hospitalized patients and five laboratory strains of E. coli ATCC25922, S. epidermidis ATCC35984, P. aeruginosa ATCC27853, E. faecalis ATCC29212 and C. albicans ATCC90028 were formed on the catheters in 24-well tissue culture plates. Scanning electron microscopy analysis was performed to observe biofilms. Results: All 89 E. faecalis isolates were found to be biofilm positive. Nitrofurazone-impregnated catheters significantly reduced the cell counts of E. faecalis isolates and completely inhibited the formation of P. aeruginosa and S. epidermidis biofilms compared with the others. Regarding reduction of biofilm cell counts, a hydrophilic-coated catheter was more effective against P. aeruginosa, whereas a silver-coated catheter was found to be more effective against S. epidermidis. The nitrofurazone-impregnated catheter had the best antimicrobial durability. Conclusion: Urine isolates of E. faecalis had considerable ability with respect to biofilm formation. The nitrofurazone-impregnated catheter was the most effective against all tested bacteria; however, the effect of a hydrophilic or silver-coated catheter depends on the species present in it.

Makale detayları

Evaluation of Antimicrobial Durability and Anti-Biofilm Effects in Urinary Catheters Against Enterococcus faecalis Clinical Isolates and Reference Strains

Yazarlar: Didem KART | Ayşe Semra KUSTİMUR | Meral SAĞIROĞLU | Ayşe KALKANCI

Yayıncı: Trakya University

Dergi: Balkan Medical Journal 2017 Vol.34 Issue 6, pp.546-552

Belge Tipi: Makale

Yayın Tarihi: 10/2017

Belge Dili: Türkçe

Document ID (Org No.): 2000758983

Sıklık: İki Aylık

pISSN: 2146-3123

Sayı

Yazarlar:

Didem KART | Ayşe Semra KUSTİMUR | Meral SAĞIROĞLU | Ayşe KALKANCI

Yayıncı:

Trakya University

Dergi:

Balkan Medical Journal 2017 Vol.34 Issue 6, pp.546-552

Belge Tipi:

Makale

Yayın Tarihi:

10/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000758983

Sıklık:

İki Aylık

pISSN:

2146-3123