Introduction:
A new dispatcher-assisted basic life support (DA-BLS) training program, called “Home Education and Resuscitation Outcome Study (HEROS)” was developed with a goal to provide high-quality DA-CPR training, with a focus on untrained home bystanders. This study aimed to determine whether the HEROS program is associated with improved quality in CPR performance during training and willingness to provide bystander CPR.
Methods:
This was a prospective, clustered randomized trial conducted in three district health community centers in Seoul. Intervention group was trained with the HEROS program and control group was trained with non-HEROS program. The primary outcome was overall CPR quality, measured as total CPR score. Secondary and tertiary outcomes were other CPR quality parameters and post-training survey results. Difference in difference (DID) analysis was performed to analyze the outcome data.
Results:
Among total 1,929 trainees, 907 (47.0%) were trained with HEROS program and 1,022 (53.0%) were trained with non-HEROS program. Overall, compared with the non-HEROS group, the HEROS group showed higher quality of CPR performances and better maintaining of their CPR quality throughout the course (Total scores of 84% vs. 80% for first session and 72% vs. 67% for last session; DID of12.2 vs. 13.2). Other individual CPR parameters also showed similar results (p<0.01 for all). In the post-training survey, disagreement rate in voluntariness about bystander CPR was significant lower in the HEROS group.
Conclusions:
The HEROS training program helped trainees to perform and maintain high quality CPR throughout the course and enhanced their willingness to provide bystander CPR.

8 - The Effectiveness of a New Dispatcher-Assisted Bystander CPR Program on CPR Quality: A cluster randomized controlled trial