Management of Pseudomonas Aeruginosa Lung Infection in Danish Cystic Fibrosis Patients

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Abstract
The annual mortality rate of cystic fibrosis patients with chronic Pseudomonas aeruginosa lung infection at the Danish CF-centre ranged from 10 to 20% in the years 1970–1975. In this period the patients received antipseudomonal chemotherapy only during acute exacerbations of infection. From 1976 99 patients acquired chronic P. aeruginosa infection and were given regular and intensive antipseudomonal treatment 3–4 times per year. The patients were followed for 612 patient-years; 7 died and the 10-year survival rate after onset of P. aeruginosa infection was 90%±4%. The annual mortality rate is now 1–2%. Although precipitating antibodies against P. aeruginosa increased significantly, pulmonary function did not deteriorate with duration of infection. Cross-infection between patients caused an increased incidence of chronic P. aeruginosa infection which was reduced by hygienic measures.