Chronic obstructive pulmonary disease acute exacerbation: prognostic value of eosinophilia in terms of recurrence

Recurrence of COPD AE one month after ED visit was less frequent in patients with HEo+. BEC may predict systemic corticosteroid treatment failure or success. Identification of responders to corticotherapy can lead to less prescription of prednisone or equivalent and could be integrated into a therapeutic management algorithm.