Acute cardiac care & resuscitation

Real-time hemodynamic responses to epinephrine and their association with return of spontaneous circulation (ROSC) in out-of-hospital cardiac arrest

ResuscitationPublished retrospective observational study

Authors' conclusion

Greater delta DBP and delta MAP following epinephrine administration during cardiopulmonary resuscitation were associated with higher likelihood of achieving sustained ROSC in patients with OHCA.

Study context

Population
Patients with Out-of-hospital cardiac arrest (OHCA) treated at a tertiary hospital with invasive arterial blood pressure monitoring during resuscitation in the emergency departmentpatients included in the analysis
Participants
160 patients
Exposure
Delta diastolic blood pressure (DBP), delta mean arterial pressure (MAP) and delta systolic blood pressure (SBP) after epinephrine administration in ROSC vs no-ROSC groups
Outcome
Sustained ROSC (ROSC maintained for at least 20 min)
Methodological detailstertiary hospital
  • Tertiary hospital

Main finding

As reported in the abstract

Greater changes in ROSC group
Estimate (95% CI)P value
ROSCvs no-ROSC
median difference in delta DBP 13.7 mmHg(11.3–13.8)
P = 0.001
ROSCvs no-ROSC
median difference in delta MAP 14.9 mmHg(12.6–15.7)
P = 0.001

Observational data: associations, not effects.

Further findings

Sustained ROSC probability by delta DBP and delta MAP (restricted cubic spline)

Positive associations of delta DBP and delta MAP with sustained ROSC probability

Sustained ROSC, multivariable analysis

Adjusted odds ratio for delta DBP
1.02 (95% CI: 1.00-1.04, p = 0.040)
Adjusted odds ratio for delta MAP
1.01 (95% CI: 1.00-1.03, p = 0.010)

Original publication

Real-time hemodynamic responses to epinephrine and their association with ROSC in out-of-hospital cardiac arrest. Resuscitation. Published 16 April 2025. doi:10.1016/j.resuscitation.2025.110611

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