Abstract
Background: Incorrect use of inhaler devices is associated with unfavorable outcomes Aim: To evaluate device use errors in asthma and COPD patients treated in outpatient clinics of 3 tertiary hospitals and one private practice office in Greece Methods: Demographics and medical history were recorded. Patients demonstrated the use of their prescribed device and use was evaluated according to predefined steps Results: 607 patients (50.2%male, mean age 60.2years) performed 663 demonstrations (56 patients were using 2 different types of devices). 49.8% were treated for asthma and 50.2% for COPD. 79.5% were using DPIs. Errors were documented in 41.2%, were associated with the type of device, p Conclusion: Device use errors are common and associated with unfavorable outcomes. Trained patients were more likely to use the device correctly. Patients should be encouraged to demonstrate the use of their devices during medical visits in everyday clinical practice
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