Susceptibility of Multidrug-Resistant Gram-Negative Urine Isolates to Oral Antibiotics

Author:

Hirsch Elizabeth B.12,Zucchi Paola C.1,Chen Alice1,Raux Brian R.1,Kirby James E.23,McCoy Christopher2,Eliopoulos George M.23

Affiliation:

1. Northeastern University, Boston, Massachusetts, USA

2. Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA

3. Harvard Medical School, Boston, Massachusetts, USA

Abstract

ABSTRACT Increasing resistance among Gram-negative uropathogens limits treatment options, and susceptibility data for multidrug-resistant isolates are limited. We assessed the activity of five oral agents against 91 multidrug-resistant Gram-negative urine isolates that were collected from emergency department/hospitalized patients. Fosfomycin and nitrofurantoin were most active (>75% susceptibility). Susceptibilities to sulfamethoxazole-trimethoprim, ciprofloxacin, and ampicillin were ≤40%; empirical use of these agents likely provides inadequate coverage in areas with a high prevalence of multidrug-resistant uropathogens.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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