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- W2769526454 abstract "Background There is evidence that acute exacerbations of COPD (AECOPD) may be stratified by peripheral blood eosinophil count and that this may allow identification of a pathologically distinct phenotype with clinical value. We have compared lung function measures between patients with eosinophilic and non-eosinophilic AECOPD. Methods All admissions to an inner London teaching hospital with AECOPD were recorded between 2004 and 2012. The eosinophilic phenotype is defined as a first blood count within 24 hours of admission showing peripheral blood eosinophil count ³ 2% of white blood cells. The first lung function test recorded, performed in a dedicated-laboratory between admissions, were used in analysis. We used non-parametric statistics (Mann-Witney U) for univariate comparisons, and linear regression for multivariate analyses. Results There were 2793 admissions with AECOPD recorded, we used only first admissions (1,279). Of the first admissions 1104 (86.3%) have a recorded peripheral blood eosinophil phenotype (³2=331, Figure 1 – A comparison of DLCO percent predicted measured in stable state, in patients with eosinophilic vs. non-eosinophilic AECOPD admissions. Discussion In this cohort, patients admitted to hospital with acute exacerbations of COPD associated with an eosinophilic phenotype had a higher FEV1 and higher DLCO% predicted. A lower DLCO is more associated with an “emphysematous” than “bronchial” form of COPD. Our Results suggest that the eosinophilic phenotype of AECOPD may be associated with less alveolar and pulmonary capillary damage." @default.
- W2769526454 created "2017-12-04" @default.
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- W2769526454 date "2017-11-15" @default.
- W2769526454 modified "2023-09-28" @default.
- W2769526454 title "P186 Demonstrating higher diffusion coefficients in patients with eosinophilic vs. non-eosinophilic exacerbations of copd" @default.
- W2769526454 doi "https://doi.org/10.1136/thoraxjnl-2017-210983.328" @default.
- W2769526454 hasPublicationYear "2017" @default.
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