Cardiogenic Shock Staging (SCAI SHOCK) — free guideline decision tool
SCAI SHOCK staging classifies cardiogenic shock into five graded stages (A–E) tied to rising in-hospital mortality.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Stage (choose the best fit) | A At risk: ACS or decompensated heart failure, no shock, normal perfusion and blood pressure |
|---|---|
| Cardiac arrest (CPR/defibrillation with coma) | No |
→SCAI stageStage A
- Stage：Stage A (in-hospital mortality ≈3%, Jentzer Mayo CICU cohort)
- Management direction：Monitor, treat the underlying disease (ACS reperfusion / heart-failure optimization), watch closely for progression
- Dynamic nature：Cardiogenic shock is a dynamic process: most patients change stage within 24 h — serial reassessment is required to guide escalation/de-escalation of support
| Stage (choose the best fit) | E Extremis: circulatory collapse/refractory shock (SBP < 80 or MAP < 50 on multiple agents), often with cardiac arrest |
|---|---|
| Cardiac arrest (CPR/defibrillation with coma) | Yes (add (A) modifier) |
→SCAI stageStage E(A)
- Stage：Stage E(A) (in-hospital mortality ≈67%, Jentzer Mayo CICU cohort)
- Management direction：Maximize resuscitation/MCS, ECPR if needed; multidisciplinary assessment of prognosis and goals of care
- Dynamic nature：Cardiogenic shock is a dynamic process: most patients change stage within 24 h — serial reassessment is required to guide escalation/de-escalation of support
Common questions
What is Cardiogenic Shock Staging (SCAI SHOCK)?
SCAI SHOCK staging classifies cardiogenic shock into five graded stages (A–E) tied to rising in-hospital mortality.
How is Cardiogenic Shock Staging (SCAI SHOCK) calculated? What is the core formula?
A at-risk → B beginning/pre-shock → C classic (needs intervention) → D deteriorating → E extremis; in-hospital mortality rises ~3% → 7% → 12% → 40% → 67%; cardiac arrest adds an (A) modifier.
When is Cardiogenic Shock Staging (SCAI SHOCK) used?
Use to stage cardiogenic shock at the bedside and guide escalation-of-support and shock-team activation decisions.
What are the key clinical points for Cardiogenic Shock Staging (SCAI SHOCK)?
Staging integrates physical signs, lactate, and hemodynamics — initial staging need not wait for invasive monitoring (original synthesis · not guideline verbatim). Shock is dynamic: most patients change stage within 24 h, so serial reassessment drives escalation or de-escalation. The (A) cardiac-arrest modifier flags a worse prognostic trajectory independent of the base stage.
What are the limits and cautions when using Cardiogenic Shock Staging (SCAI SHOCK)?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
How is Cardiogenic Shock Staging (SCAI SHOCK) calculated in practice? Can you show a worked example?
Inputs: Stage (choose the best fit) A At risk: ACS or decompensated heart failure, no shock, normal perfusion and blood pressure, Cardiac arrest (CPR/defibrillation with coma) No → Result: SCAI stage Stage A（Stage: Stage A (in-hospital mortality ≈3%, Jentzer Mayo CICU cohort), Management direction: Monitor, treat the underlying disease (ACS reperfusion / heart-failure optimization), watch closely for progression, Dynamic nature: Cardiogenic shock is a dynamic process: most patients change stage within 24 h — serial reassessment is required to guide escalation/de-escalation of support） Inputs: Stage (choose the best fit) E Extremis: circulatory collapse/refractory shock (SBP < 80 or MAP < 50 on multiple agents), often with cardiac arrest, Cardiac arrest (CPR/defibrillation with coma) Yes (add (A) modifier) → Result: SCAI stage Stage E(A)（Stage: Stage E(A) (in-hospital mortality ≈67%, Jentzer Mayo CICU cohort), Management direction: Maximize resuscitation/MCS, ECPR if needed; multidisciplinary assessment of prognosis and goals of care, Dynamic nature: Cardiogenic shock is a dynamic process: most patients change stage within 24 h — serial reassessment is required to guide escalation/de-escalation of support）
Run Cardiogenic Shock Staging (SCAI SHOCK) now
SCAI SHOCK staging classifies cardiogenic shock into five graded stages (A–E) tied to rising in-hospital mortality.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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