Dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) was not associated with better outcomes for traumatic out-of-hospital cardiac arrests (OHCA) in achieving a short-term sustained return of spontaneous circulation (ROSC).

The DA-CPR program for traumatic OHCAs needs further studies to validate its effectiveness and practicability, especially in the communities where rules for the termination of resuscitation in prehospital settings do not exist.

A total of 4,526 OHCA cases were enrolled.

Traumatic OHCA cases compared to medical OHCA cases, were less likely to have bystander CPR and initially shockable rhythms.

Regarding DA-CPR performance, traumatic OHCA cases were less likely to have dispatcher recognition of cardiac arrest, dispatcher initiation of bystander CPR, or any dispatcher delivery of CPR instructions.

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