Acute cardiac care & resuscitation
Doppler ultrasound peak systolic velocity versus end tidal carbon dioxide during pulse checks in cardiac arrest
Authors' conclusion
During a pulse check, Doppler ultrasound PSV outperformed ETCO2 for correlation with SBP and accuracy in detecting ROSC with SBP ≥ 60 mmHg.
Study context
- Population
- Emergency Department (ED) cardiac arrest patients with an advanced airway and femoral arterial line in place111 pulse checks
- Participants
- 35 patients
- Comparison
- Doppler ultrasound peak systolic velocity (PSV) vs ETCO2 during pulse checks
- Primary endpoint
- Correlation of PSV and of ETCO2 with SBP; accuracy for detecting return of spontaneous circulation (ROSC) with SBP ≥ 60 mmHg
- Follow-up
- During pulse check
Primary result
As reported in the abstract
Diagnostic accuracy for ROSC with SBP ≥ 60 mmHg; correlation with SBP · during pulse checks
- Higher correlation with systolic blood pressure (SBP) for PSV than ETCO2 (Spearman, 0.71 vs 0.31)
- P < 0.001
Original publication
Doppler ultrasound peak systolic velocity versus end tidal carbon dioxide during pulse checks in cardiac arrest. Resuscitation. Published 13 January 2023. doi:10.
Summarised from the published abstract; every number is checked against it