Real-world data on the effects of colistin sulfate and polymyxin B sulfate in the treatment of pneumonia induced by CR-GNB

Authors

  • Di Liu Department of Critical Care Medicine, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
  • Fang Jie Department of Pharmacy, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
  • Yongjie Ding Department of Respiratory and Critical Care Medicine, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
  • Hongping Qu Department of Critical Care Medicine, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
  • Dechang Chen Department of Critical Care Medicine, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
  • Jie Huang Department of Critical Care Medicine, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China https://orcid.org/0000-0001-7003-5725

DOI:

https://doi.org/10.3855/jidc.18887

Keywords:

polymyxin, colistin sulfate, polymyxin B sulfate, carbapenem-resistant Gram-negative bacteria, pneumonia

Abstract

Introduction: The aim of this study was to compare the efficacy and safety of colistin sulfate (CS) with polymyxin B sulfate (PMB) in the treatment of pneumonia induced by carbapenem-resistant Gram-negative bacteria (CR-GNB).

Methodology: Patients diagnosed with pneumonia caused by CR-GNB and admitted to the intensive care unit (ICU) from January 2020 to September 2022 were enrolled in this study. The patients were divided into the CS group and the PMB group according to their medication regimens. Group-wise demographic data, clinical efficacy, prognosis, and adverse events were analyzed and compared.

Results: A total of 120 patients (68 in the CS group and 52 in the PMB group) with pneumonia were included in the study. The majority of the pathogens were CR-Acinetobacter baumannii, followed by CR-Klebsiella pneumoniae, and CR-Pseudomonas aeruginosa. The clinical response rates in the CS and PMB groups after treatment were 62.0% and 65.4%, bacterial clearances were 44.0% and 36.5%, 28-day mortality rates were 16.0% and 13.5%, respectively; no significant differences between the two treatments were found. Nevertheless, the adverse effects were significantly less common in the CS group than in the PMB group, especially when treatments were administered intravenously.

Conclusions: CS, a novel polymyxin E formulation, is as effective as PMB in treating pneumonia induced by CR-GNB while causing less side effects.

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Published

2024-07-29

How to Cite

1.
Liu D, Jie F, Ding Y, Qu H, Chen D, Huang J (2024) Real-world data on the effects of colistin sulfate and polymyxin B sulfate in the treatment of pneumonia induced by CR-GNB. J Infect Dev Ctries 18:1050–1057. doi: 10.3855/jidc.18887

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Original Articles