Copyright ©ERS Journals Ltd 2003 Inflammatory markers in cystic fibrosis patients with transmissible Pseudomonas aeruginosa1 Manchester Adult Cystic Fibrosis Centre, South Manchester University Hospitals NHS Trust, Manchester, 2 School of Pharmacy, Queen's University, Belfast, and 3 Northern Ireland Adult Cystic Fibrosis Centre, Belfast City Hospital, Belfast, UK CORRESPONDENCE: A.M. Jones, Manchester Adult Cystic Fibrosis Centre, South Manchester University Hospitals NHS Trust, Southmoor Road, Manchester, M23 9LT, UK. Fax: 44 1612912080. E-mail: andmarkj@hotmail.com Keywords: cross-infection, cystic fibrosis, inflammation, Pseudomonas aeruginosa
Received: January 14, 2003
Chronic Pseudomonas aeruginosa infection in cystic fibrosis (CF) leads to a damaging host inflammatory response. There are an increasing number of reports of P. aeruginosa cross-infection at CF centres. The clinical significance of acquisition of a transmissible strain for patients who already harbour P. aeruginosa is unclear. In this study, levels of inflammatory markers in clinically stable adult CF patients who harbour transmissible and sporadic strains of P. aeruginosa have been compared.
Patients with CF and chronic P. aeruginosa infection were grouped into those who harbour a transmissible P. aeruginosa and those who harbour their own sporadic strains. Total white cell and differential counts, sputum neutrophil elastase (NE), interleukin (IL)-8, tumour necrosis factor (TNF)-
The two groups (both n=20) were well matched for per cent predicted forced expiratory volume in one second, per cent predicted forced vital capacity and body mass index. There were no significant differences in levels of white cell counts or inflammatory markers between the two groups.
At times of clinical stability, cystic fibrosis patients infected with transmissible Pseudomonas aeruginosa do not have a heightened inflammatory response above that of those harbouring sporadic strains.
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