Acute myocardial infarction is associated with early mortality despite modern advances in therapy. In patients who are candidates for thrombolytic therapy, it is possible to assess a patient's risk of death within 30 days after an acute myocardial infarction. This is based on analysis of patients in the GUSTO-I trial.
|
Parameter |
Finding |
Value |
|
constant |
|
3.812 |
|
age in years |
|
0.07624* (age) |
|
Killip class |
1 |
0 |
|
|
2 |
2.0796 |
|
|
3 |
3.6232 |
|
|
4 |
4.0392 |
|
Killip class and age |
1 |
0 |
|
|
2 |
-0.02124 * (age) |
|
|
3 |
-0.03494 * (age) |
|
|
4 |
-0.03216 * (age) |
|
systolic blood pressure |
systolic BP >= 120 |
-0.03976*120 |
|
|
systolic BP < 120 |
-0.03976 * (systolic BP) |
|
heart rate |
|
MAX((0.03936 * ((heart rate) - 50)),0) - (0.02113 * (heart rate) ) |
|
location of MI |
inferior |
-0.5355 |
|
|
location not inferior or anterior (posterior, lateral or apical) |
-0.2598 |
|
height in centimeters |
|
(see below) |
|
weight in kilograms |
|
-0.007379 * (weight) |
|
time to treatment in hours |
<= 2 hours |
2 * 0.09299 |
|
|
> 2 hours |
(hours) * 0.09299 |
|
smoking history |
current |
-0.2190 |
|
|
former |
-0.2129 |
|
history of diabetes |
present |
0.2497 |
|
|
absent |
0 |
|
history of hypertension |
present |
0.1645 |
|
|
absent |
0 |
|
history of cerebrovascular disease |
present |
0.3412 |
|
|
absent |
0 |
|
history of previous MI |
present |
0.4115 |
|
|
absent |
0 |
|
history of CABG |
present |
0.3524 |
|
|
absent |
0 |
|
treatment modality |
streptokinase + TPA + IV heparin |
0.1399 |
|
|
streptokinase + IV heparin |
0.2142 |
|
|
streptokinase + subcutaneous heparin |
0.1968 |
height related values =
= (-0.03972 * (height))+ A - B+ C - D + E
A = (0.0001835 * (((height) - 154.9)^3)) if value > 0, else 0
B = (0.0008975 * (((height) - 165.1)^3)) if value > 0, else 0
C = (0.001587 * (((height) - 172)^3)) if value > 0, else 0
D = (0.001068 * (((height) - 177.3)^3)) if value > 0, else 0
E = (0.0001943 * (((height) - 185.4)^3)) if value > 0, else 0
L =
= (value for constant)+ (value for age)+ (value for Killip class)+ (value for Killip class & age)+ (value for systolic blood pressure)+ (value for heart weight)+ (value for location of MI)+ (value for height)+ (value for weight)+ (value for time to treatment)+ (value for smoking history)+ (value for diabetes history)+ (value for hypertension history)+ (value for previous MI)+ (value for CABG)+ (value for treatment modality)
probability of mortality within 30 days of an acute MI =
= (1 / (1 + (EXP (-L))))
Specialty: Cardiology
ICD-10: ,
