Fitzpatrick and Body reported the Manchester Acute Coronary Syndromes ECG (MACS-ECG) risk model. This can help to identify non-ST-elevation ACS (NSTEACS). The authors are from the University of Manchester and the Manchester NHS Foundation Trust.
Parameters:
(1) height of T wave in V1
(2) Wellens Type A
(3) mean ST depression in leads II and III
(4) mean ST depression in leads V2 and V3
(5) mean ST depression in leads V5 and V6
Parameter
Finding
Points
height of T wave in V1
<= 0.2 mV
0
> 0.2 mV
0.001200244 * (height)
Wellens type A
no
0
yes
1.28139031
ST depress II and III
0.026625591 * ((ST in II) + (ST in III))/2
ST depress V2 and V3
0.007130889 * ((ST in V2) + (ST in V3))/2
ST depress V5 and V6
0.01802942 * ((ST in V5) + (ST in V6))/2
where:
• Measurements are presumably in mm (see Data Collection, Alotaibi et al)
score =
= SUM(points for all of the parameters) - 2.248037534
probability of non-ST segment elevation myocardial infarction =
= 1/(1 +E XP((-1) * (score)))
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