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Risk Score of Andrews et al for Primary Percutaneous Coronary Intervention (PCI) in Acute ST-Segment Elevation Acute Myocardial Infarction

Description

Andrews et al reported a risk score for evaluating a patient undergoing an percutaneous coronary intervention (PCI) after an ST-segment elevation acute myocardial infarction. This can help to identify a patient at increased risk for short-term mortality. The authors are from the University of Sheffield, Northern General Hospital and Manchester Royal Infirmary.


Patient selection: ST-segment elevation acute myocardial infarction

 

Outcome: 30-day mortality

 

Parameters:

(1) age in years

(2) call-to-balloon (CTB) time in hours (starts when patient calls for help)

(3) cardiogenic shock

(4) congestive heart failure

 

Parameter

Finding

Points

age in years

 

0.045 * (age)

CTB time

 

0.604 * (CBT)

cardiogenic shock

no

0

 

yes

2.631

congestive heart failure

no

0

 

yes

1.153

 

X =

= SUM(points for all 4 parameters) - 6.582

 

probability of 30 day mortality =

= 1/(1+EXP((-1)*X))

 

Performance:

• The area under the ROC curve is 0.84.


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