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Abx-Resistant Enterobacteriaceae Tied to Clinical Failure in UTI

Abx-Resistant Enterobacteriaceae Tied to Clinical Failure in UTI

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WEDNESDAY, Nov. 7, 2018 — Community-onset urinary tract infection (UTI) due to extended-spectrum cephalosporin-resistant (ESC-R) Enterobacteriaceae (EB) is significantly associated with clinical failure, according to a study published online Oct. 30 in Infection Control & Hospital Epidemiology.

Judith A. Anesi, M.D., from the University of Pennsylvania in Philadelphia, and colleagues conducted a retrospective cohort study involving patients presenting to emergency departments or outpatient practices with EB UTIs between 2010 and 2013. Exposed patients with ESC-R EB UTIs were matched to unexposed patients with EB UTIs based on study year (151 in each group).

In multivariable analyses, the researchers found that UTI due to an ESC-R EB was significantly associated with clinical failure (odds ratio, 7.07). Infection with Citrobacter spp and need for hemodialysis were also independent risk factors for clinical failure. There was also a significant association between UTI due to an ESC-R EB and inappropriate initial antibiotic therapy (odds ratio, 4.40).

“This study adds to the evidence that drug-resistant bacteria are an increasing issue, even in the community and even in patients who have something seemingly uncomplicated, like a urinary tract infection,” Anesi said in a statement. “These drug-resistant infections are difficult to treat, and our study shows that relapses are common. This is an alarming finding, and interventions to curb antibiotic resistance are urgently needed.”

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Posted: November 2018

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