Prospective validation of the SCAI shock classification: Single center analysis
David A Baran1, Ashleigh Long2, Amit P Badiye1
1Sentara Heart Hospital, Advanced Heart Failure Center, 600 Gresham Drive, Norfolk, Virginia, 23507, USA.
Summary
The Society for Cardiac Angiography and Interventions (SCAI) Shock Classification effectively predicts patient survival. Reassessing the SCAI Shock Stage at 24 hours further refines prognostic accuracy for cardiac shock patients.
Area of Science:
- Cardiology
- Critical Care Medicine
- Clinical Research
Background:
- The Society for Cardiac Angiography and Interventions (SCAI) Shock Classification is a validated tool for assessing cardiac shock severity.
- Previous validation studies were retrospective; this study prospectively evaluates the SCAI Shock Classification's predictive power.
Purpose of the Study:
- To prospectively assess patient outcomes based on initial and 24-hour SCAI Shock Stages.
- To evaluate the impact of therapeutic strategies on outcomes in relation to SCAI Shock Stages.
- To identify predictors of survival in patients with cardiac shock.
Main Methods:
- Prospective observational study of 166 consecutive patients evaluated for cardiac shock over 18 months.
- Patients were assigned an initial SCAI Shock Stage.
- Survival analysis using Kaplan-Meier method and Cox Proportional hazards modeling.
Main Results:
- Initial SCAI Shock Stage was a significant predictor of 30-day survival (p = .0004).
- Age and initial SCAI Shock Stage were the strongest predictors of survival.
- 24-hour reassessment of SCAI Shock Stage significantly refined prognosis (p < .0001).
Conclusions:
- The initial SCAI Shock Stage is a robust predictor of survival in unselected cardiac shock patients.
- Prognosis can be further refined by reassessing the SCAI Shock Stage at 24 hours post-evaluation.
