Excessive use of short-acting beta 2 agonists tied with extra extreme bronchial asthma

Written By :  Dr. Shravani Dali
Medically Reviewed By :  Dr. Kamal Kant Kohli
Published On 2022-04-30 03:30 GMT   |   Update On 2022-04-30 03:30 GMT
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High use of short-acting beta 2 agonists is tied with more severe asthma, according to a recent study published in the Journal of Allergy Clinical Immunology Practice

In short-term studies, poor adherence to inhaled corticosteroids (ICS) has been associated with worse asthma control, but the association of long-term adherence and disease control remains unclear. A study was conducted to assess the relationship between 12-year adherence to ICS and asthma control in patients with adult-onset asthma.

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As part of the Seinäjoki Adult Asthma Study, 181 patients with clinically confirmed new-onset adult asthma and regular ICS medication were followed-up for 12 years. Adherence (%) to ICS was assessed individually ((µg dispensed/µg prescribed)×100) during the follow-up. Asthma control was evaluated after 12 years of treatment according to the Global Initiative for Asthma 2010 guideline.

Results:

  • Asthma was controlled in 31% and not controlled (partly controlled or uncontrolled) in 69% of the patients.
  • Patients with not-controlled asthma were more often male, older, nonatopic and used higher doses of ICS than those with controlled disease.
  • The mean±sd 12-year adherence to ICS was 63±38% in patients with controlled asthma and 76±40% in patients with not-controlled disease (p=0.042).
  • Among patients with not-controlled asthma, those with lower 12-year adherence (<80%) had more rapid decline in forced expiratory volume in 1 s (-47 mL·year-1) compared to patients with better adherence (≥80%) (-40 mL·year-1) (p=0.024).
  • In contrast, this relationship was not seen in patients with controlled asthma.

Thus, in adult-onset asthma, patients with not-controlled disease showed better 12-year adherence to ICS treatment than those with controlled asthma. In not-controlled disease, adherence <80% was associated with more rapid lung function decline, underscoring the importance of early recognition of such patients in routine clinical practice.

Reference:

Long-term adherence to inhaled corticosteroids and asthma control in adult-onset asthma by Vähätalo I, et al. published in the Journal of Allergy Clinical Immunology Practice.

doi:10.1016.j.jaip.2022.03.027.



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