Ceftolozane/Tazobactam vs Polymyxin or Aminoglycoside-based Regimens for the Treatment of Drug-resistant Pseudomonas aeruginosa
Ceftolozane/Tazobactam vs Polymyxin or Aminoglycoside-based Regimens for the Treatment of Drug-resistant Pseudomonas aeruginosa
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DOI:
10.1093/cid/ciz816
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发表时间:
2020-07-15
影响因子:
11.8
通讯作者:
Perez, Federico
中科院分区:
文献类型:
--
作者:
Pogue, Jason M.;Kaye, Keith S.;Perez, Federico
Background. Ceftolozane/tazobactam is a novel cephalosporin/beta-lactamase inhibitor combination that often retains activity against resistant Pseudomonas aeruginosa. The comparative safety and efficacy vs polymyxins or aminoglycosides in this setting remains unknown.Methods. A retrospective, multicenter, observational cohort study was performed. Patients who received ceftolozane/tazobactam were compared with those treated with either polymyxin or aminoglycoside-based regimens for infections due to drug-resistant P. aeruginosa. Multivariate logistic regression was performed controlling for factors associated with treatment to assess the independent impact of ceftolozane/tazobactam on clinical cure, acute kidney injury (AKI), and in-hospital mortality.Results. A total of 200 patients were included (100 in each treatment arm). The cohort represented an ill population with 69% in the intensive care unit, 63% mechanically ventilated, and 42% in severe sepsis or septic shock at infection onset. The most common infection type was ventilator-associated pneumonia (52%); 7% of patients were bacteremic. Combination therapy was more commonly used in polymyxin/aminoglycoside patients than those who received ceftolozane/tazobactam (72% vs 15%, P < .001). After adjusting for differences between groups, receipt of ceftolozane/tazobactam was independently associated with clinical cure (adjusted odds ratio [aOR], 2.63; 95% confidence interval [CI], 1.31-5.30) and protective against AKI (aOR, 0.08; 95% CI, 0.03-0.22). There was no difference in in-hospital mortality. The number needed to treat for a clinical cure with ceftolozane/tazobactam was 5, and the number needed to harm with AKI with a polymyxin/aminoglycoside was 4.Conclusions. These data support the preferential use of ceftolozane/tazobactam over polymyxins or aminoglycosides for drug-resistant P. aeruginosa infections.