Controller Inhalers: Overview of Devices, Instructions for Use, Errors, and Interventions to Improve Technique

Area of Science:

• Pulmonary Medicine
• Pharmacology
• Medical Education

Background:

• Inadequate inhaler technique is a common problem in persistent asthma management.
• Lack of consensus exists regarding standardized inhaler checklists and technique descriptions.
• Inhaler error rates and associated risk factors vary significantly across studies.

Purpose of the Study:

• To review the literature on inhaler design, usage, and interventions for technique improvement.
• To assist clinicians in identifying patients with poor inhaler technique.
• To guide clinicians in recognizing and correcting critical inhaler errors using evidence-based methods.

Main Methods:

• Literature review of studies on inhaler design, use, and technique interventions.
• Synthesis of evidence on common inhaler errors and risk factors.
• Identification of best practices for correcting inhaler technique.

Main Results:

• Significant variability exists in reported inhaler error rates and risk factors.
• Critical elements of inhaler technique are not uniformly described across existing literature.
• Evidence-based interventions can effectively improve inhaler technique.

Conclusions:

• Clinicians need tools to identify and address inhaler technique issues in asthma patients.
• Standardized approaches to inhaler technique assessment and correction are warranted.
• Improving inhaler technique is essential for optimizing asthma control and patient adherence.