ArticleAnnals of clinical microbiology and antimicrobials2025
Mortality and exacerbations in bronchiectasis patients with carbapenem-resistant Pseudomonas aeruginosa isolation: a long-term retrospective cohort study.
Article in Annals of clinical microbiology and antimicrobials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Therapeutic Potential of Ginkgolic Acid C17:1 in Modulating PTEN/mtDNA/TLR9 Axis for Alleviating Chronic Pseudomonas Aeruginosa Infection in Bronchiectasis.Iranian journal of biotechnology · 2026Article
- Co-infection withFrontiers in medicine · 2026Review
- Clinical Risk Factors and Outcomes of Carbapenem-Resistant PInfection and drug resistance · 2026Article
- Precise pathogen detection and clinical characterization of bronchiectasis.Frontiers in cellular and infection microbiology · 2025Article
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Authors and funding
12 authors.
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Abstract
backgroundFew studies have investigated the impact of carbapenem-resistant Pseudomonas aeruginosa (CRPA) on long-term outcomes in bronchiectasis. This study aimed to analyze acute exacerbations and mortality in bronchiectasis patients with CRPA isolation.
methodsThis retrospective study included bronchiectasis patients with PA-positive cultures from January 1, 2014, to July 31, 2023, at West China Hospital of Sichuan University. PA was isolated from sputum or bronchoalveolar lavage fluid (BALF) and classified into CRPA and non-CRPA groups based on antimicrobial susceptibility testing. Multivariate logistic regression was used to assess risk factors for acute exacerbations, while multivariate Cox regression identified independent risk factors for all-cause and cause-specific mortality.
resultsAmong 564 patients with PA-positive isolates, 143 (25.36%) harbored CRPA strains. CRPA isolation was associated with an increased risk of acute exacerbations (adjusted odds ratio [aOR] 2.072, p = 0.001), while antibiotic treatment reduced the risk of exacerbations (aOR 0.439, p = 0.011). CRPA isolation was an independent risk factor for all-cause (adjusted hazard ratio [aHR] 1.488, p = 0.031) and cause-specific mortality (aHR 1.882, p = 0.010). The 1-, 3-, 5-, and 7-year cause-specific survival rates in the CRPA group were 88.6%, 79.8%, 73.2%, and 68.0%, respectively, versus 95.4%, 91.0%, 85.6%, and 81.8% in the non-CRPA group (p = 0.001).
conclusionCRPA isolation was significantly associated with an increasing risk of acute exacerbations, overall and cause-specific mortality. These findings underscored the urgent need to strengthen antibiotic stewardship to reduce the emergence of CRPA and to implement early detection and targeted management strategies to improve outcomes for patients with CRPA.
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