Stages of Cardiogenic Shock of the Society of Cardiovascular Angiography and Intervention (SCAI)

Kapur et al reported criteria for determining the stage of cardiogenic shock. The authors are from multiple institutions in the United States.

Patient selection: cardiogenic shock

Stage	Society of Cardiovascular Angiography and Intervention (SCAI)	SCAI and Cardiogenic Shock Working Group
A	hemodynamically stable	hemodynamically stable
B	hemodynamically unstable	hypotensive and hypoperfusing and untreated
C	hypoperfusion = shock	hypotensive and hypoperfusing or treated
D	failure to stabilize with initial therapy	failure to stabilize with initial therapy
E	in extremis; refractory shock	in extremis; refractory shock

Parameters:

(1) systolic blood pressure

(2) diastolic blood pressure

(3) serum lactate in mmol/L

(4) serum ALT in IU

(5) arterial pH

(6) number of vasoactive and inotropic drugs

(7) number of circulatory support devices

(8) persistent hypotension or hypoperfusion

(9) out of hospital cardiac arrest

mean arterial pressure in mm Hg =

= ((systolic blood pressure) + (2 * (diastolic blood pressure))) / 3

total number drugs and devices =

= (number of vasoactive drugs) + (number of circulatory support drugs)

An out-of-hospital cardiac arrest was also Stage E.

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