The purpose of the study is to evaluate whether the Emergency Department (ED) Asthma Care Project leads to improved asthma care delivery and patient outcomes in the ED setting.

Hypothesis: Implementation of a multi-disciplinary asthma strategy/clinical pathway for the treatment of asthma in the ED, based upon the 1999 Canadian Asthma Consensus Guidelines (and subsequent updates), will increase adherence with published management guidelines in the ED setting, reduce variations in the emergency management of acute asthma, increase utilization of specialized asthma services and improve outcomes for patients following ED visits.

Methods:

This observational, pre- post-intervention study will compare a stratified sample of 10 Ontario hospital EDs (5 intervention and 5 control sites). Chart abstractions will be performed on all adult visits for acute asthma over a 3 month period before and after implementation of the OHA’s ED Asthma Care Map. Patient and provider surveys and provider focus group post intervention will also be conducted. Primary outcome measures are hospitalizations and repeat ED visit rates. Secondary outcome measures include: length of stay in ED, self-reported adherence with referral to specialized asthma services made during index ED visit, self-reported asthma control, and use of self-management strategies (including use of action plan), use of asthma management strategies promoted by the care map (such as use of objective measure of airflow rates, use of steroids, education, referral to specialized asthma services on discharge). Ease of implementation and barriers to implementation will also be evaluated.