| Summary: | Albeit inhalation therapy is the cornerstone in chronic obstructive pulmonary disease (COPD) treatment, inhaler technique is rarely evaluated, and training materials are often insufficient. In this single-center study, we aimed to evaluate the effectiveness of a teaching session complemented by a flyer on inhaler technique in COPD patients and to evaluate the perceived quality of the flyer. A total of 30 participants with stable COPD who had never used a soft mist inhaler before (Respimat<sup>®</sup>, Boehringer Ingelheim) received a brief teaching session on proper inhaler technique complemented by a flyer (visit 1). The teaching intervention was completed by a pulmonologist. Epidemiological and clinical characteristics of COPD were collected by a questionnaire, and the ability to properly handle the inhaler was assessed. After 14 days, inhaler handling was re-evaluated, and patients were asked to rate the flyer (visit 2). After the initial training, proper inhaler handling was achieved in 80.0% of patients. Inhaler proficiency was maintained after 14 days (83.0% of the patients used the Respimat<sup>®</sup> correctly, <i>p</i>-value > 0.99). The flyer was considered at least good by 27 patients (90.0%). This study indicated that the administration of an educational intervention resulted in persistent good competence in inhaler technique at a 14-day follow-up.
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