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Elevated blood eosinophils in acute COPD exacerbations: better short- and long-term prognosis.

ABSTRACT: Background: Elevated eosinophils in COPD is recognized as a potential risk factor for exacerbations, but the prognostic role of elevated eosinophils during exacerbations of COPD is unclear. We investigated short-term and long-term outcomes in patients with exacerbations of eosinophilic phenotype, compared with patients with low blood eosinophils. Methods: A single-centre retrospective study of all patients admitted for a COPD exacerbation to Bispebjerg University Hospital in 2010-2011 was established by linking inpatient data with national patient and prescription registries, with a three-year follow-up period. Elevated eosinophils were defined as a blood eosinophil level at admission of ≥0.30 × 10⁹ cells/L. Results: A total of 811 patients were included; 13.2% had an eosinophilic exacerbation. The eosinophilic group had less need for non-invasive ventilation, shorter inpatient stay, and lower in-hospital mortality, compared to the non-eosinophilic group. However, the eosinophilic and non-eosinophilic groups showed similar risks of readmission (incidence rate ratio[95], 0.99 [0.73-1.36]). Three-year mortality was high in both groups, although lower in the eosinophilic group (40% vs. 54%, p = 0.006). Conclusions: COPD exacerbations in patients with high blood eosinophil have a better short-term prognosis without higher risk of subsequent exacerbation. Eosinophilic exacerbations have also a lower three-year mortality.

SUBMITTER: Jabarkhil A

PROVIDER: S-EPMC7241534 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Elevated blood eosinophils in acute COPD exacerbations: better short- and long-term prognosis.

Jabarkhil Ajmal A Moberg Mia M Janner Julie J Petersen Mie Nymann MN Jensen Camilla Bjørn CB Henrik Äangquist Lars L Vestbo Jørgen J Jess Tine T Porsbjerg Celeste C

European clinical respiratory journal 20200430 1

<b>Background</b>: Elevated eosinophils in COPD is recognized as a potential risk factor for exacerbations, but the prognostic role of elevated eosinophils during exacerbations of COPD is unclear. We investigated short-term and long-term outcomes in patients with exacerbations of eosinophilic phenotype, compared with patients with low blood eosinophils. <b>Methods</b>: A single-centre retrospective study of all patients admitted for a COPD exacerbation to Bispebjerg University Hospital in 2010-2 ...[more]

PMID: 32489532

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Project description:BackgroundExacerbations of COPD (ECOPD) are a frequent cause of emergency room (ER) visits. Predictors of early outcome could help clinicians in orientation decisions. In the current study, we investigated whether mid-regional pro-adrenomedullin (MR-proADM) and copeptin, in addition to clinical evaluation, could predict short-term outcomes.Patients and methodsThis prospective blinded observational study was conducted in 20 French centers. Patients admitted to the ER for an ECOPD were considered for inclusion. A clinical risk score was calculated, and MR-proADM and copeptin levels were determined from a venous blood sample. The composite primary end point comprised 30-day death or transfer to the intensive care unit or a new ER visit.ResultsA total of 379 patients were enrolled in the study, of whom 277 were eventually investigated for the primary end point that occurred in 66 (24%) patients. In those patients, the median (interquartile range [IQR]) MR-proADM level was 1.02 nmol/L (0.77-1.48) versus 0.83 nmol/L (0.63-1.07) in patients who did not meet the primary end point (P=0.0009). In contrast, copeptin levels were similar in patients who met or did not meet the primary end point (P=0.23). MR-proADM levels increased with increasing clinical risk score category: 0.74 nmol/L (0.57-0.89), 0.83 nmol/L (0.62-1.12) and 0.95 nmol/L (0.75-1.29) for the low-, intermediate- and high-risk categories, respectively (P<0.001). MR-proADM was independently associated with the primary end point (odds ratio, 1.65; 95% confidence interval [CI], 1.10-2.48; P=0.015). MR-proADM predicted the occurrence of primary end point with a sensitivity of 46% (95% CI, 33%-58%) and a specificity of 79% (95% CI, 74-84).ConclusionMR-proADM but not copeptin was significantly associated with outcomes at 30 days, even after adjustment for clinical risk category. Overall, MR-proADM, alone or combined with the clinical risk score, was a moderate strong predictor of short-term outcomes.

Dataset Information

Elevated blood eosinophils in acute COPD exacerbations: better short- and long-term prognosis.

Publications

Elevated blood eosinophils in acute COPD exacerbations: better short- and long-term prognosis.

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