Doctorate Description: Traumatic out-of-hospital cardiac arrest (OHCA) is a devastating event that associated with dismal prognosis. It differs significantly from OHCA of presumed cardiac aetiology because the majority of traumatic OHCAs do not present in an initial shockable rhythm, the victims are usually not witnessed to arrest, and they often have lower rates of bystander cardiopulmonary resuscitation (CPR) and attempted resuscitation by paramedics. Additionally, cases which achieve return of spontaneous circulation (ROSC) in the field have a poor likelihood of survival to hospital discharge. Although there are tremendous efforts to reduce the mortality rate, achieving ROSC in the field remains difficult for reasons not well understood. Moreover, clinical parameters for achieving ROSC in traumatic OHCA are not well investigated. Some of those parameters include the prehospital interventions performed and delays to the initiation of these interventions.
Detailed information on the outcomes and factors that influence survival will be useful in developing strategies to improve rates of survival. In addition, a description of the prehospital interventions performed and the time to their administration are needed to identify opportunities to improve the system response.
This study aims to provide an epidemiological analysis of the long-term trends in the incidence and outcomes of traumatic OHCA, and to explore the frequency and timing of pre-hospital interventions provided.