Cloxacillin-susceptible Staphylococcus aureus with high MIC to glycopeptides. Ever we use cloxacillin?

November 20, 2015 at 6:42 pm

Rev Esp Quimioter. 2015 Sep;28 Suppl 1:25-9.

[Article in Spanish]

Morales A, Lalueza A, San Juan R, Aguado JM1.

Author information

1José María Aguado, Unidad de Enfermedades Infecciosas. Hospital Universitario 12 de Octubre, Madrid, Spain. jaguadog1@gmail.com

Abstract

Staphylococcus aureus infections are yet an important cause of morbidity and mortality despite of numerous effective anti-staphylococcal antibiotics available. There has been an increasing incidence of methicillin-resistant strains which might have led to a wider use of vancomycin.

This seems to ride alongside a covert progressive increase of S. aureus vancomycin minimum inhibitory concentration.

In this way, the emergence of vancomycin-intermediate S. aureus (VISA) strains and heteroresistant-VISA has raised concern for the scarcity of alternative treatment options.

Equally alarming, though fortunately less frequent, is the emergence of vancomycin-resistant S. aureus.

Ultimately, various debate issues have arisen regarding the emergence of S. aureus strains with decreased vancomycin susceptibility, within the range still considered sensitive. These strains have shown a different clinical behaviour regardless of vancomycin use, both in methicillin resistant and sensitive S. aureus.

The emergence of increasing vancomycin-resistance in S. aureus isolates, has stirred up the basis of therapeutic approach in staphylococcal infections.

There is yet much to explore to better define the impact of higher vancomycin minimum inhibitory concentration in staphylococcal infections.

PDF

http://seq.es/seq/0214-3429/28/sup1/morales.pdf

 

Entry filed under: Antimicrobianos, Bacterias, Bacteriemias, Metodos diagnosticos, Resistencia bacteriana, Sepsis, Update. Tags: .

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