In a nationwide cohort of OHCA patients with shockable rhythms, dispatcher-assisted CPR was strongly associated with improved early resuscitation success and long-term survival, supporting DA-CPR as a critical system-level intervention.
Key Findings
Results
Patients who received dispatcher-assisted CPR had dramatically higher rates of return of spontaneous circulation compared to those without DA-CPR.
ROSC rate was 92.0% in the DA-CPR group versus 12.4% in the non-DA-CPR group
Difference was statistically significant (P < 0.001)
Study included 3,674 VF/VT OHCA cases, of whom 1,744 (47.5%) received DA-CPR
Only cases with initial shockable rhythm (ventricular fibrillation or pulseless ventricular tachycardia) were included
Results
Hospital admission with sustained circulation was substantially higher in the DA-CPR group than in the non-DA-CPR group.
Hospital admission rate with sustained circulation was 90.8% in the DA-CPR group versus 11.7% in the non-DA-CPR group
Difference was statistically significant (P < 0.001)
Study covered OHCA cases in Hungary during 2019, 2022, and 2023
Utstein-style consensus reporting guidelines were followed
Results
Thirty-day survival was markedly higher in patients who received dispatcher-assisted CPR compared to those who did not.
30-day survival was 54.6% in the DA-CPR group versus 7.1% in the non-DA-CPR group
Difference was statistically significant (P < 0.001)
The study was a retrospective observational study
Patients were stratified by whether DA-CPR was ongoing upon ambulance arrival or initiated by the ambulance crew
Results
One-year survival was substantially higher among patients who received dispatcher-assisted CPR.
One-year survival was 45.8% in the DA-CPR group versus 6.2% in the non-DA-CPR group
Difference was statistically significant (P < 0.001)
This finding demonstrates that the survival benefit of DA-CPR extended well beyond the immediate resuscitation period
The cohort consisted entirely of adult OHCA patients with initial shockable rhythms
Results
DA-CPR occurrence changed over the study period, declining in 2022 followed by a partial recovery in 2023.
DA-CPR occurrence increased over time overall but showed a decline specifically in 2022
Partial recovery in DA-CPR rates was observed in 2023
Data were collected across three years: 2019, 2022, and 2023
The authors highlight the importance of centralized protocols and continuous performance monitoring in the context of these temporal fluctuations
Results
Nearly half of all VF/VT OHCA cases in Hungary across the study years received dispatcher-assisted CPR.
1,744 out of 3,674 total VF/VT OHCA cases (47.5%) received DA-CPR
The study was nationwide in scope, covering all adult OHCA cases with VF/VT in Hungary during 2019, 2022, and 2023 in which resuscitation was carried out by emergency medical services
DA-CPR is defined as bystander CPR guided by emergency dispatch personnel prior to ambulance arrival
What This Means
This research suggests that when emergency dispatchers guide bystanders through cardiopulmonary resuscitation (CPR) over the phone before an ambulance arrives — a practice called dispatcher-assisted CPR or DA-CPR — cardiac arrest patients are far more likely to survive. The study looked at nearly 3,700 cardiac arrest patients in Hungary across three years (2019, 2022, and 2023) who had a type of cardiac arrest that is potentially treatable with shock (called a shockable rhythm). Patients who received DA-CPR were about seven to eight times more likely to have their heartbeat restored, be admitted to hospital alive, and survive at 30 days and one year compared to those who did not receive DA-CPR before the ambulance arrived.
The numbers are striking: 92% of DA-CPR patients had their pulse restored, versus only 12% of non-DA-CPR patients. At one year, 46% of DA-CPR patients were still alive, compared to just 6% of those without it. About half of all patients in the study received DA-CPR. The researchers also noted that DA-CPR rates dropped in 2022 before partially recovering in 2023, suggesting that consistent implementation requires active monitoring and standardized protocols.
This research suggests that training dispatchers to instruct callers in CPR techniques and ensuring those instructions are given consistently could be one of the most impactful things an emergency medical system can do to save lives during cardiac arrest. The findings highlight that the chain of survival starts with the very first phone call to emergency services, and that the minutes before an ambulance arrives are critical. Public health and emergency service planners may wish to consider investing in dispatcher training, centralized protocols, and ongoing performance tracking as system-level priorities.
Molnár F, Gőbl G, Szabó A, Csomós &, Hőnyi P, Pápai G, et al.. (2026). From call to home: The role of dispatcher-assisted CPR in patient survival.. Physiology international. https://doi.org/10.1556/2060.2026.00960