Antibiotic stewardship in hematological patients with Escherichia coli and Klebsiella pneumoniae bloodstream infections: evaluating short-course and carbapenem-sparing strategies

Abstract Background To address the overuse of antibiotics, this study examined the clinical characteristics and outcomes associated with antibiotic duration and carbapenem-sparing regimens in hematological patients with Escherichia coli (E. coli) and Klebsiella pneumoniae (K. pneumoniae) bloodstream...

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Main Authors: Yuqing Cui, Xiaomeng Feng, Ling Pan, Qingsong Lin, Jieru Wang, Sisi Zhen, Yuping Fan, Xin Chen, Yizhou Zheng, Yingchang Mi, Fengkui Zhang, Xiaofan Zhu, Zhijian Xiao, Erlie Jiang, Mingzhe Han, Jianxiang Wang, Sizhou Feng
Format: Article
Language:English
Published: BMC 2025-05-01
Series:Annals of Clinical Microbiology and Antimicrobials
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Online Access:https://doi.org/10.1186/s12941-025-00801-y
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author Yuqing Cui
Xiaomeng Feng
Ling Pan
Qingsong Lin
Jieru Wang
Sisi Zhen
Yuping Fan
Xin Chen
Yizhou Zheng
Yingchang Mi
Fengkui Zhang
Xiaofan Zhu
Zhijian Xiao
Erlie Jiang
Mingzhe Han
Jianxiang Wang
Sizhou Feng
author_facet Yuqing Cui
Xiaomeng Feng
Ling Pan
Qingsong Lin
Jieru Wang
Sisi Zhen
Yuping Fan
Xin Chen
Yizhou Zheng
Yingchang Mi
Fengkui Zhang
Xiaofan Zhu
Zhijian Xiao
Erlie Jiang
Mingzhe Han
Jianxiang Wang
Sizhou Feng
author_sort Yuqing Cui
collection DOAJ
description Abstract Background To address the overuse of antibiotics, this study examined the clinical characteristics and outcomes associated with antibiotic duration and carbapenem-sparing regimens in hematological patients with Escherichia coli (E. coli) and Klebsiella pneumoniae (K. pneumoniae) bloodstream infections (BSI). Methods We conducted a retrospective analysis of hematological patients with E. coli or K. pneumoniae BSI from 2017 to 2023. Propensity score matching (PSM) controlled for confounding variables, and data were analyzed using multivariate regression models. Results A total of 1,862 patients were included (E. coli: n = 932; K. pneumoniae: n = 930). Among 1,105 patients in the antibiotic duration cohort, 48.96% (n = 541) received short-course therapy (median: 8 days, IQR: 7–9), while others received prolonged-course therapy (median: 14 days, IQR: 12–17). No significant differences in 30-day mortality or 90-day recurrence rates were observed between the two groups, either before or after PSM. In the antibiotic regimen cohort (n = 1,606), we assessed the effectiveness of carbapenem-containing versus carbapenem-sparing regimens, as well as monotherapy versus combination therapy. Among 1,488 patients with non-carbapenem-resistant Enterobacteriaceae (non-CRE) infections, 567 had infections caused by extended-spectrum beta-lactamase (ESBL)-producing bacteria. In this subgroup, 30-day mortality rates also showed no significant differences between carbapenem-containing and carbapenem-sparing regimens, both before and after PSM. Conclusion In conclusion, short-course antibiotic therapy is as effective as prolonged therapy for treating E. coli and K. pneumoniae BSI in hematological patients. Similarly, carbapenem-sparing regimens are non-inferior to carbapenem-based regimens. These findings highlight the potential for optimizing antibiotic use, but further validation through randomized controlled trials is warranted.
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spelling doaj-art-4b5d52aa28e64d64906d97b0cf7bd3212025-08-20T03:16:31ZengBMCAnnals of Clinical Microbiology and Antimicrobials1476-07112025-05-0124111310.1186/s12941-025-00801-yAntibiotic stewardship in hematological patients with Escherichia coli and Klebsiella pneumoniae bloodstream infections: evaluating short-course and carbapenem-sparing strategiesYuqing Cui0Xiaomeng Feng1Ling Pan2Qingsong Lin3Jieru Wang4Sisi Zhen5Yuping Fan6Xin Chen7Yizhou Zheng8Yingchang Mi9Fengkui Zhang10Xiaofan Zhu11Zhijian Xiao12Erlie Jiang13Mingzhe Han14Jianxiang Wang15Sizhou Feng16State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeState Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeAbstract Background To address the overuse of antibiotics, this study examined the clinical characteristics and outcomes associated with antibiotic duration and carbapenem-sparing regimens in hematological patients with Escherichia coli (E. coli) and Klebsiella pneumoniae (K. pneumoniae) bloodstream infections (BSI). Methods We conducted a retrospective analysis of hematological patients with E. coli or K. pneumoniae BSI from 2017 to 2023. Propensity score matching (PSM) controlled for confounding variables, and data were analyzed using multivariate regression models. Results A total of 1,862 patients were included (E. coli: n = 932; K. pneumoniae: n = 930). Among 1,105 patients in the antibiotic duration cohort, 48.96% (n = 541) received short-course therapy (median: 8 days, IQR: 7–9), while others received prolonged-course therapy (median: 14 days, IQR: 12–17). No significant differences in 30-day mortality or 90-day recurrence rates were observed between the two groups, either before or after PSM. In the antibiotic regimen cohort (n = 1,606), we assessed the effectiveness of carbapenem-containing versus carbapenem-sparing regimens, as well as monotherapy versus combination therapy. Among 1,488 patients with non-carbapenem-resistant Enterobacteriaceae (non-CRE) infections, 567 had infections caused by extended-spectrum beta-lactamase (ESBL)-producing bacteria. In this subgroup, 30-day mortality rates also showed no significant differences between carbapenem-containing and carbapenem-sparing regimens, both before and after PSM. Conclusion In conclusion, short-course antibiotic therapy is as effective as prolonged therapy for treating E. coli and K. pneumoniae BSI in hematological patients. Similarly, carbapenem-sparing regimens are non-inferior to carbapenem-based regimens. These findings highlight the potential for optimizing antibiotic use, but further validation through randomized controlled trials is warranted.https://doi.org/10.1186/s12941-025-00801-yAntibiotic stewardshipHematologicalBloodstream infectionsShort-course therapyCarbapenem-sparing regimens
spellingShingle Yuqing Cui
Xiaomeng Feng
Ling Pan
Qingsong Lin
Jieru Wang
Sisi Zhen
Yuping Fan
Xin Chen
Yizhou Zheng
Yingchang Mi
Fengkui Zhang
Xiaofan Zhu
Zhijian Xiao
Erlie Jiang
Mingzhe Han
Jianxiang Wang
Sizhou Feng
Antibiotic stewardship in hematological patients with Escherichia coli and Klebsiella pneumoniae bloodstream infections: evaluating short-course and carbapenem-sparing strategies
Annals of Clinical Microbiology and Antimicrobials
Antibiotic stewardship
Hematological
Bloodstream infections
Short-course therapy
Carbapenem-sparing regimens
title Antibiotic stewardship in hematological patients with Escherichia coli and Klebsiella pneumoniae bloodstream infections: evaluating short-course and carbapenem-sparing strategies
title_full Antibiotic stewardship in hematological patients with Escherichia coli and Klebsiella pneumoniae bloodstream infections: evaluating short-course and carbapenem-sparing strategies
title_fullStr Antibiotic stewardship in hematological patients with Escherichia coli and Klebsiella pneumoniae bloodstream infections: evaluating short-course and carbapenem-sparing strategies
title_full_unstemmed Antibiotic stewardship in hematological patients with Escherichia coli and Klebsiella pneumoniae bloodstream infections: evaluating short-course and carbapenem-sparing strategies
title_short Antibiotic stewardship in hematological patients with Escherichia coli and Klebsiella pneumoniae bloodstream infections: evaluating short-course and carbapenem-sparing strategies
title_sort antibiotic stewardship in hematological patients with escherichia coli and klebsiella pneumoniae bloodstream infections evaluating short course and carbapenem sparing strategies
topic Antibiotic stewardship
Hematological
Bloodstream infections
Short-course therapy
Carbapenem-sparing regimens
url https://doi.org/10.1186/s12941-025-00801-y
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