Clinical consequences of increased ciprofloxacin and gentamicin resistance in patients with Escherichia coli bacteraemia in the Netherlands.
Summary of "Clinical consequences of increased ciprofloxacin and gentamicin resistance in patients with Escherichia coli bacteraemia in the Netherlands."
Background: Escherichia coli is a common cause of bacteraemia and is increasingly resistant to ciprofloxacin and gentamicin. The primary objective of this study was to investigate how often this leads to inadequate initial antimicrobial treatment. Secondary goals were to determine factors associated with inadequate empirical therapy and to assess its impact on mortality and length of stay. Methods: All patients with an E. coli bacteraemia hospitalized in 2008 were identified retrospectively. Initial antimicrobial therapy and clinical outcomes of all patients with an isolate resistant to gentamicin and/or ciprofloxacin (cases) were compared to those of a group of randomly selected patients in whom a gentamicin and ciprofloxacin susceptible E. coli was isolated (controls). Results: One hundred and thirty-six unique patients had E. coli bacteraemia. Of these, 34 patients were identified as cases and were compared to 34 controls. Among the cases, 97% of the E. coli was resistant to ciprofloxacin and 44% to gentamicin. Resistance to amoxicillin was high in both cases (94%) and controls (65%). In 41% of the cases initial antimicrobial therapy was inadequate, compared to only 3% in the controls. The majority of inadequately treated cases had a biliary focus (64%). Infections in cases were more often healthcare-associated than infections in controls (62% vs 26%). E. coli with the same resistance pattern had been isolated before in adequately treated cases more often than in inadequately treated cases. Mortality did not differ significantly between cases and controls. Conclusions: Neither ciprofloxacin nor amoxicillin should be used as empirical therapy in patients with a presumed E. coli bacteraemia.
Department of Infectious Diseases.
This article was published in the following journal.
Name: Scandinavian journal of infectious diseases
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22200089
- DOI: http://dx.doi.org/10.3109/00365548.2011.641506
Medical and Biotech [MESH] Definitions
Antibiotic produced by Micromonospora inyoensis. It is closely related to gentamicin C1A, one of the components of the gentamicin complex (GENTAMICINS).
A broad-spectrum antimicrobial carboxyfluoroquinoline.
Prenatal Exposure Delayed Effects
The consequences of exposing the FETUS in utero to certain factors, such as NUTRITION PHYSIOLOGICAL PHENOMENA; PHYSIOLOGICAL STRESS; DRUGS; RADIATION; and other physical or chemical factors. These consequences are observed later in the offspring after BIRTH.
The internal resistance of the BLOOD to shear forces. The in vitro measure of whole blood viscosity is of limited clinical utility because it bears little relationship to the actual viscosity within the circulation, but an increase in the viscosity of circulating blood can contribute to morbidity in patients suffering from disorders such as SICKLE CELL ANEMIA and POLYCYTHEMIA.
Multidrug Resistance-associated Proteins
A sequence-related subfamily of ATP-BINDING CASSETTE TRANSPORTERS that actively transport organic substrates. Although considered organic anion transporters, a subset of proteins in this family have also been shown to convey drug resistance to neutral organic drugs. Their cellular function may have clinical significance for CHEMOTHERAPY in that they transport a variety of ANTINEOPLASTIC AGENTS. Overexpression of proteins in this class by NEOPLASMS is considered a possible mechanism in the development of multidrug resistance (DRUG RESISTANCE, MULTIPLE). Although similar in function to P-GLYCOPROTEINS, the proteins in this class share little sequence homology to the p-glycoprotein family of proteins.
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