Smartphone Video-assisted Advanced Life Support of Patients With Out-of-hospital Cardiac Arrest by EMS Under Physician Direction

As an preparation for this study, personnel training in mock advanced life support (ALS) simulation including the smartphone video call methodology was conducted. The smartphones were not separately purchased or produced; commercially available smartphones already owned by the emergency medical service (EMS) personnel and medical directors were used. To facilitate the smartphone video call between the medical director and the EMS personnel and to prevent the caregivers or others nearby from hearing the conversation, Bluetooth earphone sets were used. Data were collected using the cardiopulmonary resuscitation (CPR) recording form uploaded in SNS which consisted of EMS personnel and medical directors, and the quality of CPR was evaluated