Pain during exacerbation of chronic obstructive pulmonary disease: A prospective cohort study

Abstract : BACKGROUND AND OBJECTIVE: Pain, a symptom often present in patients with Chronic Obstructive Pulmonary Disease (COPD), alters quality of life. COPD exacerbation augments several mechanisms that may cause pain (dyspnea, hyperinflation and inflammation) and therefore we hypothesized that pain might be increased during exacerbation. METHODS: A prospective cohort study was conducted in patients admitted for acute exacerbations of COPD (AECOPD) in two emergency departments in France and Canada. Patients with cancer-related pain or recent trauma were not included. The Short Form McGill Pain Questionnaire (SF-MPQ) and the Brief Pain Inventory (BPI) scale were used to evaluate pain intensity and location. Patients also completed the Borg Dyspnea Scale and Hospital Anxiety and Depression Scale. The questionnaires were completed again during an outpatient assessment in the stable phase. The primary outcome was difference in pain intensity (SF-MPQ) between the exacerbation and stable phases. RESULTS: Fifty patients were included. During exacerbation, 46 patients (92%) reported pain compared to 29 (58%) in the stable phase (p<0.001). Pain intensity was higher during exacerbation (SF-MPQ 29.7 [13.6-38.2] vs. 1.4 [0.0-11.2]; p<0.001). Pain was predominantly located in the chest during exacerbation and in the limbs during the stable phase. Pain intensity during exacerbation correlated with anxiety score. CONCLUSION: The frequency and intensity of pain were higher during AECOPD, with a specific distribution. Pain should therefore be routinely assessed and treated in patients with AECOPD.
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Submitted on : Tuesday, July 23, 2019 - 4:03:28 PM
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Maxime Maignan, Jean-Marc Chauny, Raoul Daoust, Ludivine Duc, Prudence Mabiala-Makele, et al.. Pain during exacerbation of chronic obstructive pulmonary disease: A prospective cohort study. PLoS ONE, Public Library of Science, 2019, 14 (5), pp.e0217370. ⟨10.1371/journal.pone.0217370⟩. ⟨inserm-02191758⟩

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