Tenaglia et al developed a simple scoring system to predict the risk of abrupt closure during PTCA. This can help identify patients at risk prior to the procedure. The authors are from Duke University.
Parameters analyzed using multiple regression analysis:
(1) branch location
(2) length
(3) right coronary artery
(4) thrombus score (haziness, filling defect, contrast staining)
(5) location in artery
|
Thrombus Score Features |
Finding |
Points |
|
haziness |
absent |
0 |
|
|
present |
1 |
|
filling defect |
absent |
0 |
|
|
present |
1 |
|
contrast staining |
absent |
0 |
|
|
present |
1 |
thrombus score =
= SUM(points for all 3 parameters)
|
Parameter |
Finding |
Points |
|
location at a branch point |
no |
0 |
|
|
yes |
14 |
|
length |
< 5 mm |
0 |
|
|
5 – 10 mm |
5 |
|
|
> 10 mm |
10 |
|
coronary artery |
left |
0 |
|
|
right |
7 |
|
thrombus score |
0 |
0 |
|
|
1 |
6 |
|
|
2 or 3 |
12 |
|
location |
proximal |
0 |
|
|
mid-artery |
6 |
|
|
distal |
0 |
abrupt closure risk score =
= SUM(points for all 5 parameters)
Interpretation:
• minimum score: 0
• maximum score: 49
• The higher the score, the greater the risk of an abrupt closure occurring.
|
Score |
Risk of Abrupt Closure |
|
0 – 5 |
low |
|
6 – 17 |
moderate |
|
>= 18 |
high |
Specialty: Cardiology
ICD-10: ,
