Semin Respir Crit Care Med 2021; 42(04): 587-594
DOI: 10.1055/s-0041-1730921
Review Article

Pseudomonas aeruginosa in Bronchiectasis

Laia Fernández-Barat
1  Cellex Laboratory, CibeRes (Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, 06/06/0028), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
2  School of Medicine, University of Barcelona, Barcelona, Spain
3  Department of Pneumology, Respiratory Institute, Hospital Clinic of Barcelona, Spain
,
Victoria Alcaraz-Serrano
1  Cellex Laboratory, CibeRes (Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, 06/06/0028), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
2  School of Medicine, University of Barcelona, Barcelona, Spain
3  Department of Pneumology, Respiratory Institute, Hospital Clinic of Barcelona, Spain
,
Rosanel Amaro
1  Cellex Laboratory, CibeRes (Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, 06/06/0028), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
2  School of Medicine, University of Barcelona, Barcelona, Spain
3  Department of Pneumology, Respiratory Institute, Hospital Clinic of Barcelona, Spain
,
Antoni Torres
1  Cellex Laboratory, CibeRes (Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, 06/06/0028), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
2  School of Medicine, University of Barcelona, Barcelona, Spain
3  Department of Pneumology, Respiratory Institute, Hospital Clinic of Barcelona, Spain
› Author Affiliations

Abstract

Pseudomonas aeruginosa (PA) in patients with bronchiectasis (BE) is associated with a poor outcome and quality of life, and its presence is considered a marker of disease severity. This opportunistic pathogen is known for its ability to produce biofilms on biotic or abiotic surfaces and to survive environmental stress exerted by antimicrobials, inflammation, and nutrient or oxygen depletion. The presence of PA biofilms has been linked to chronic respiratory infection in cystic fibrosis but not in BE. There is considerable inconsistency in the reported infection/eradication rates of PA and chronic PA. In addition, inadequate antimicrobial treatment may potentiate the progression from intermittent to chronic infection and also the emergence of antibiotic resistance. A better comprehension of the pathophysiology of PA infections and its implications for BE is urgently needed. This can drive improvements in diagnostic accuracy, can move us toward a new consensus definition of chronic infection, can better define the follow-up of patients at risk of PA, and can achieve more successful eradication rates. In addition, the new technological advances regarding molecular diagnostics, -omics, and biomarkers require us to reconsider our traditional concepts.



Publication History

Publication Date:
14 July 2021 (online)

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