The purpose of this study is to determine whether adding interactive video communication to dispatch instruction improves the quality of bystander cardiopulmonary resuscitation in simulated cardiac arrests.

Sudden cardiac death (SCD) is a leading cause of adult death and bystander cardiopulmonary resuscitation (CPR) significantly improves survival. Dispatch assistance increases the chance of bystander CPR but the quality of dispatcher-assisted CPR (DA-CPR) remains unsatisfactory. This study is conducted to assess the effect of adding interactive video communication to dispatch instruction on the quality of bystander CPR, including chest compressions and rescue breathing, in simulated cardiac arrests.

Inclusion Criteria:

• Volunteers above 16 years of age who have not received any CPR training within the last 5 years were recruited.

Exclusion Criteria:

• Healthcare providers, non-Mandarin speaking individuals, and those with illness/physical conditions that prevent them from receiving telephone instructions or performing CPR were excluded.