The Clinical-Thallium Index Score is used to predict the likelihood of a post-operative cardiac ischemic event.
The Clinical-Thallium Index Score is based on the presence or absence of 7 predictors:
(1) age:
(2) history of angina:
(3) Q wave on ECG:
(4) history of ventricular ectopic activity:
(5) diabetes:
(6) ischemic ECG changes during dipyridamole infusion:
(7) redistribution of thallium:
Parameter |
Finding |
Value |
age |
|
(0.077* (age)) - 10 |
history of angina |
present |
+1.0 |
|
absent |
0 |
Q wave on ECG |
present |
+ 1.4 |
|
absent |
0 |
history of ventricular ectopic activity |
present |
+ 1.2 |
|
absent |
0 |
diabetes mellitus |
present |
+1.0 |
|
absent |
0 |
ischemic ECG changes during dipyridamole infusion |
present |
+1.3 |
|
absent |
0 |
redistribution of thallium |
present |
+2.3 |
|
absent |
0 |
clinical thallium index score =
= SUM(values for all 7 parameters)
probability of a cardiac ischemic event =
= (e^(score)) / (1 + (e^(score)))
Specialty: Cardiology, Surgery, general
ICD-10: ,