The European respiratory journal : official journal of the European Society for Clinical Respiratory Physiology
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Multicenter Study
The independent contribution of Pseudomonas aeruginosa infection to long-term clinical outcomes in bronchiectasis.
Pseudomonas aeruginosa is responsible for chronic infection in many bronchiectasis patients but it is not known whether it is associated with worse clinical outcomes independent of the underlying severity of disease. This study analysed data from 2596 bronchiectasis patients included from 10 different bronchiectasis clinical centres across Europe and Israel, with a 5-year follow-up period. Prevalence of P. aeruginosa chronic infection and its independent impact on exacerbations, hospitalisations, quality of life and mortality was assessed. ⋯ An independent association with worse quality of life of 7.46 points (95% CI 2.93-12.00; p=0.001) was found in a multivariable linear regression. P. aeruginosa was therefore found to be independently associated with exacerbation frequency, hospital admissions and worse quality of life. Mortality was increased in patients with P. aeruginosa particularly in the presence of frequent exacerbations.
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Multicenter Study Observational Study
Emphysema and extrapulmonary tissue loss in COPD: a multi-organ loss of tissue phenotype.
We tested whether emphysema progression accompanies enhanced tissue loss in other body compartments in 1817 patients from the ECLIPSE chronic obstructive pulmonary disease (COPD) cohort. Clinical and selected systemic biomarker measurements were compared in subjects grouped by quantitative tomography scan emphysema quartiles using the percentage of low attenuation area (LAA%). Lowest and highest quartile patients had amino-acid metabolomic profiles. ⋯ Patients with more emphysema had accelerated FEV1, BMI and FFMI decline and more exacerbations, hospitalisations and mortality. COPD patients with more emphysema undergo excessive loss of pulmonary and extrapulmonary tissue, which is probably related to abnormal tissue maintenance. Because of worse clinical outcomes, we propose this subgroup be named the multi-organ loss of tissue (MOLT) COPD phenotype.
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Letter Multicenter Study Observational Study
Relapse-free cure from multidrug-resistant tuberculosis in Germany.