Chronic pain is common in patients with Chronic Obstructive pulmonary Disease (COPD). The pain intensity may increase during acute episodes of exacerbation. Fifty (50) patients in acute exacerbation of COPD will be included in the emergency department of CHU Grenoble Alpes and Hôpital du Sacré Coeur de Montréal. The intensity and characteristics of pain will be evaluated from the Short-Form McGill Pain Questionnaire (SF-MPQ) and the Brief Pain Inventory (BPI). Assessment of respiratory status, anxiety and depression, and clinical and biological data, defining the severity of exacerbation, will also be collected. A 30-day follow-up visit, after a return to the stable state of COPD, allowed the realization of Respiratory Functional Exploration and the same questionnaires.
