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Role of piperacillin/tazobactam as a carbapenem-sparing antibiotic for treatment of acute pyelonephritis due to extended-spectrum β-lactamase-producing Escherichia coli.

Abstract：

:Extended-spectrum β-lactamase-producing Escherichia coli (ESBL-Ec) is a frequent cause of acute pyelonephritis (APN), requiring carbapenem therapy. However, alternatives to carbapenems are needed due to the emergence of carbapenemase-producing micro-organisms. The purpose of this study was to compare the clinical efficacy of piperacillin/tazobactam (TZP) versus ertapenem in the treatment of adult patients with APN caused by ESBL-Ec. A retrospective observational study of APN caused by ESBL-Ec susceptible to TZP was performed at a university-affiliated hospital in the Republic of Korea between February 2011 and June 2013. All adult patients initially treated with in vitro-active TZP were compared with those treated with ertapenem to evaluate antibiotic clinical efficacy. The primary endpoint was treatment failure, defined as a composite of in-hospital mortality, change of initial antibiotic regimen and microbiological eradication failure. During the study period, 68 patients prescribed TZP and 82 patients prescribed ertapenem were eligible for inclusion in the study. There was no significant difference between the two treatment groups in the occurrence of in-hospital mortality, change of initial antibiotic regimen or microbiological eradication failure. In the multivariate analyses, predictors associated with treatment failure included septic shock [odds ratio (OR) = 4.27, 95% confidence interval (CI) 1.66-10.99] and recent administration of immunosuppressive agents (OR = 2.84, 95% CI 1.02-7.91). However, the type of antibiotic was not associated with treatment failure. TZP could be an effective alternative to ertapenem for the treatment of APN caused by ESBL-Ec, sparing carbapenem consumption in the multidrug-resistant era.

journal_name

Int J Antimicrob Agents

journal_title

International journal of antimicrobial agents

authors

Yoon YK,Kim JH,Sohn JW,Yang KS,Kim MJ

doi

10.1016/j.ijantimicag.2016.12.017

subject

Has Abstract

pub_date

2017-04-01 00:00:00

pages

410-415

issue

eissn

0924-8579

issn

1872-7913

pii

S0924-8579(17)30064-X

journal_volume

pub_type

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Role of piperacillin/tazobactam as a carbapenem-sparing antibiotic for treatment of acute pyelonephritis due to extended-spectrum β-lactamase-producing Escherichia coli.