SCAI SHOCK stages
Cardiology
Also known as: SCAI-Schockklassifikation · SCAI şok evreleri · SCAI SHOCK stage classification (cardiogenic shock, A-E)
What it is for
Society for Cardiovascular Angiography and Interventions (SCAI) SHOCK stages: grade the severity of cardiogenic shock in adults; the stage can change over time and is one part of risk assessment alongside cause and risk modifiers. Stages:
Classification
| Category | Description |
|---|---|
| A (at risk) | no signs or symptoms of cardiogenic shock but at risk, e.g. large acute myocardial infarction or acute heart failure; normal perfusion. |
| B (beginning) | haemodynamic instability (relative hypotension, e.g. systolic BP <90 mmHg, mean arterial pressure <60 mmHg or a fall >30 mmHg from baseline, or tachycardia) without hypoperfusion. |
| C (classic) | hypoperfusion needing at least one intervention beyond volume resuscitation (drug or mechanical support); typically lactate 2 mmol/L or more. |
| D (deteriorating) | like stage C but worsening or not improving despite initial support. |
| E (extremis) | actual or impending circulatory collapse despite escalating support, including cardiac arrest in progress; e.g. lactate 8 mmol/L or more, severe acidosis. |
| Modifier | cardiac arrest with coma (concern for anoxic brain injury) is marked as a modifier to the stage. |
Source
SCAI SHOCK Stage Classification Expert Consensus Update: A Review and Incorporation of Validation Studies
SCAI · J Soc Cardiovasc Angiogr Interv 2022;1:100008 (Naidu SS et al.)
DOI: 10.1016/j.jscai.2021.100008
PMID: 39130139
- Edition
- SCAI SHOCK stage classification, 2022 expert consensus update (original 2019)
- Checked on
Summary of the published classification in our own words. Not a substitute for the original publication.
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