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Satisfaction, preference and error occurrence of three dry powder inhalers as assessed by a cohort naïve to inhaler operation
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Satisfaction, preference and error occurrence of three dry powder inhalers as assessed by a cohort naïve to inhaler operation
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Satisfaction, preference and error occurrence of three dry powder inhalers as assessed by a cohort naïve to inhaler operation
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Journal Article
Satisfaction, preference and error occurrence of three dry powder inhalers as assessed by a cohort naïve to inhaler operation
2018
Overview
Inhaled medication is central to the treatment of COPD. Various types of inhaler devices, which directly deliver medication to the lung, have been developed. However, patients often exhibit incorrect techniques of inhaler usage. Effectiveness of therapy may be affected by the ease of device usage, size, convenience of use, durability, clarity of instructions and device preferences of patients. This study compares the satisfaction and preference, as well as error occurrence, with the use of Genuair
, Ellipta™ and Breezhaler™ by healthy subjects in Hong Kong.
One hundred and thirty healthy Hong Kong Chinese subjects aged ≥40 years without a previous diagnosis of COPD and asthma and with no experience of using dry powder inhalers (DPIs) were recruited. Subjects learned to use the three DPIs by initially reading the instructions and then observing a demonstration with verbal explanation. The number of errors committed was evaluated. Subjects also completed a questionnaire to indicate their satisfaction and preference.
The satisfaction score of comfort for Breezhaler was significantly higher than that for Ellipta (
≤0.05), while the satisfaction score on confidence to have inhaled the entire dose was highest for Genuair compared with Ellipta (
≤0.0001) or Breezhaler (
≤0.05). The overall satisfaction score was significantly higher for Genuair than Ellipta (
≤0.05) or Breezhaler (
≤0.01). After reading the instructions, the highest number of subjects committing one or more critical errors was with Breezhaler (97) followed by Genuair (70) and then Ellipta (33). Demonstration reduced the number of critical errors made by subjects for each DPI to one third or lower.
Breezhaler seemed to be more comfortable and easy to carry, but users made less critical errors when using Ellipta after reading the instructions only. Genuair provided the clearest indication of correct dose preparation and inhalation.
Publisher
Dove Medical Press Limited,Dove Medical Press Ltd,Dove Medical Press
Subject
/ Adult
/ Age
/ Aged
/ Asthma
/ Chronic obstructive lung disease
/ Chronic obstructive pulmonary disease
/ Dry Powder Inhalers - classification
/ Dry Powder Inhalers - psychology
/ ELLIPTA
/ Female
/ GENUAIR
/ Humans
/ Inhalers
/ Male
/ Medication Errors - statistics & numerical data
/ Patient Preference - psychology
/ Pulmonary Disease, Chronic Obstructive - drug therapy
