ADD-ONS / SCALES
HAT score
Hemorrhage After Thrombolysis Score for Predicting Post-tPA Hemorrhage
Created 28/10/2021, last revision 18/09/2023
- a practical, quick, and easy-to-perform scale that allows reasonable risk stratification of ICH after intravenous thrombolysis
| Characteristics |
points
|
|
|
history of diabetes
baseline blood glucose > 200 md/dL (11 mmol/l) |
+ 1
|
|
|
pretreatment NIHSS
< 15
15-20
>20
|
0
+ 1
+ 2
|
|
|
Presence of hypodensity on initial head CT scan
no
< 1/3 of MCA territory
≥ 1/3 of MCA territory
|
0
+ 1
+ 2
|
|
| HAT score | risk of ICH |
risk of fatal ICH |
|---|---|---|
| 0 | 2% | 0% |
| 1 | 5% | 3% |
| 2 | 10% | 7% |
| 3 | 15% | 6% |
| >3 | 44% | 33% |
