Evaluation of the E test for the assessment of synergy of antibiotic combinations against multiresistant Pseudomonas aeruginosa isolates from cystic ... View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2006-01

AUTHORS

B. Balke, M. Hogardt, S. Schmoldt, L. Hoy, H. Weissbrodt, S. Häussler

ABSTRACT

The determination of synergistic effects of antimicrobial drug combinations can lead to improved therapeutic options in the antibiotic treatment of cystic fibrosis patients who are chronically infected with multiresistant Pseudomonas aeruginosa isolates. The aim of this study was to evaluate the performance of the E test versus the standard agar dilution checkerboard susceptibility test in the assessment of synergy and, in addition, to determine the activity of two antimicrobial combinations against 163 multiresistant P. aeruginosa isolates from cystic fibrosis patients. The agreement between the checkerboard method and the E test was excellent (>90%) for nonmucoid as well as mucoid isolates from cystic fibrosis patients. The rate of synergy was higher for the antibiotic combination of ceftazidime and tobramycin (28.8% of the cystic fibrosis strains) than for the combination of meropenem and tobramycin (19.0%). However, the probability of synergy for the second antibiotic combination increased significantly when the synergy of the first antibiotic combination had already been demonstrated (Fischer's exact test, p=0.049). The results show that the E test is a valuable and practical method for routine microbiological diagnostics and can aid in the selection of improved antibiotic options in the treatment of cystic fibrosis patients chronically infected with P. aeruginosa. More... »

PAGES

25-30

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10096-005-0076-9

DOI

http://dx.doi.org/10.1007/s10096-005-0076-9

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1030169010

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/16402226


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