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The effect of cognitive functions on the ability to learn how to use a Diskus device in patients with chronic obstructive pulmonary disease
1Department of Chest Diseases, Faculty of Medicine, Selcuk University, Selçuklu, Turkey
2Department of Psychology, TOBB University of Economics and Technology, Söğütözü, Ankara, Turkey
3Department of Chest Diseases, Konya Training and Research Hospital, Meram, Konya, Turkey
Eurasian Journal of Pulmonology 2018; 1(20): 27-32 DOI: 10.4103/ejop.ejop_6_18
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Abstract


OBJECTIVE: Dry powder inhalers are a group of inhaled medications commonly used for the treatment of chronic obstructive pulmonary disease (COPD). Although they can be more easily administered than metered dose inhalers, there is a high rate of errors in device use. The present study aims to evaluate the relationship between the ability to learn how to use a Diskus device and cognitive functions in patients with COPD.
MATERIALS AND METHODS: The study included 30 inhaler-näive patients who were newly diagnosed with COPD. During their first visit, patients were administered a broad array of standardized neuropsychological tests and given a training on inhaler use. During the second visit, patients were divided into two groups according to their performance in the use of Diskus device: effective and ineffective.
RESULTS: Twenty-nine patients who completed the study showed a negative correlation between the cognitive test scores and Diskus training parameters. The number of errors and duration of training increased as the cognitive scores decreased. In Visit 2, a comparison between patients with ineffective and effective use of the Diskus device showed that cognitive function scores were higher in those with effective use.
CONCLUSIONS: Evaluation of cognitive functions in COPD patients is important in establishing an effective inhalation treatment.