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01.12.2015 | Research article | Ausgabe 1/2015 Open Access

BMC Pulmonary Medicine 1/2015

Clinical outcomes associated with Staphylococcus aureus and Pseudomonas aeruginosa airway infections in adult cystic fibrosis patients

Zeitschrift:
BMC Pulmonary Medicine > Ausgabe 1/2015
Autoren:
Heather G. Ahlgren, Andrea Benedetti, Jennifer S. Landry, Joanie Bernier, Elias Matouk, Danuta Radzioch, Larry C. Lands, Simon Rousseau, Dao Nguyen
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​s12890-015-0062-7) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contribution

HGA, AB, JSL, DR, LL, SR and DN participated in the study design. HGA, JB, EM collected the data. HGA, AB, JSL, EM and DN analysed the data. HGA. AB, JSL, DR, SR and DN participated in the draft of the manuscript. All authors read and approved the final manuscript.

Abstract

Background

Staphylococcus aureus (SA) is the most prevalent organism infecting the respiratory tract of CF children, and remains the second most prevalent organism in CF adults. During early childhood, SA infections are associated with pulmonary inflammation and decline in FEV1, but their clinical significance in adult CF patients is poorly characterized.

Methods

We conducted a retrospective cross-sectional study to determine the association between airway microbiology and clinical outcomes (FEV1, rate of pulmonary exacerbations, CRP levels and clinical scores).

Results

In a cohort of 84 adult CF patients, 24 % were infected with SA only, 60 % were infected with PA, and 16 % had neither PA nor SA. CF patients with SA experienced fewer pulmonary exacerbations and lower CRP levels than those with PA.

Conclusion

In adult CF patients, SA infections alone, in the absence of PA, are a marker of milder disease.
Zusatzmaterial
Additional file 1: Table S1. Sputum microbiology for other microorganisms in sputum cultures
12890_2015_62_MOESM1_ESM.pdf
Literatur
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